Smart concrete is a product of modern construction materials combined with modern technology, is a traditional concrete materials in an advanced stage of development. Review a study on intelligent concrete development history and present situation, development trend and application prospect of intelligent concrete, elaborated on the problems needing attention in the study.

With the continuous progress of modern materials science, as one of the main building material concrete come to the development of high strength, high-performance, multifunctional and intelligent. It also tends to complicate enlargement and the construction of concrete structure. Concrete structure in the course of using, however due to the environmental load. Fatigue, corrosion effects and material effects of negative factors such as aging, the structure will inevitably generate resistance attenuation of damage accumulation, or even a sudden accident. In order to avoid the occurrence of sudden accident effectively, extend the life of the structure must be of such structures in real time “health” monitored and repaired in a timely manner. Existing non-destructive testing methods, such as x rays and c-scan acoustic detection, qualitative detection only, not quantitative, data-processing, more important thing is not to achieve real time monitoring. On the structure of internal state monitoring and damage estimates are difficult or even impossible. Traditional methods of repair of concrete structures is primarily an external reinforcement at the injury site, and to repair the damage of the original structure is difficult, especially on the structure of internal injury and repair is difficult. With the development of modern society to the intelligent, which remain in a passive mode and plan the detect and repair does not suit the modern multifunctional and intelligent building requests made on concrete material. Therefore, with active research and development, automated structure for self diagnosis, self regulating and self-repair, recovery, smart concrete has become a structural feature of (intelligence) development trend of integration [1]

　　1 definition and development of intelligent concrete history

Smart materials, refer to the “perception of environmental conditions, make the appropriate actions” material. It can mimic living systems, with both the perception and the stimulation of dual function, can have a perception on external environment variables automatically made timely. Sensitive and appropriate response, and has self diagnosis, self-tuning, self-healing, and forecasting features such as life expectancy. Smart concrete is concrete in the original composition based on composite intelligent components, make concrete self perception and memory, adaptive, self-repairing property of multifunctional materials. Prediction of concrete material under these characteristics can be effectively internal injury, meeting structure of self-security testing needs, prevent potential brittle failure of concrete structures, and can repair according to test results automatically, significantly improve the safety and durability of concrete structures. As mentioned above, concrete is an intelligent, Adaptive self perception and memory. Multiple features such as self-repair and comprehensive essential, with the present perfect preparation technology of intelligent concrete material is rather difficult. Damage diagnosis of concrete temperature control of concrete in recent years. Bionic appeared for self healing concrete and a series of intelligent concrete; laid the solid foundation for the study of intelligent concrete.

　　1.1 damage diagnosis of concrete

Self diagnosis of concrete with a pressure-sensitive and temperature-sensitive nature of self-inductance should function. Ordinary concrete material itself does not have a sensor, but in concrete substrate compound components make the concrete itself of some other materials have intrinsic induction should function. Of material components currently used are: aggregate class class, carbon, metal and fiber. Class is one of the most common class of carbon, metal and fiber. Following major describes 2 types of currently hot damage diagnosis research on concrete.

　　1.1.1 carbon fiber reinforced smart concrete

Conductivity of carbon fiber is a high strength and high elasticity and good material. Mixed with the amount of carbon fiber in cement-based material can not only significantly improve strength and toughness, and its physical properties, especially electrical properties also have a noticeable improvement, can act as a sensor and signal output reflects itself in the form of State of stress, and internal injuries. Certain shape, size and content of short carbon fiber to concrete mixed materials, perception can make concrete with internal degree of stress, strain, and operational features. Through observation, found resistance of cement-based composite materials correspond to the changes rather than changes in internal structure is. Carbon fiber reinforced cement-based materials in structural members of elastic force phase, their internal stress resistance rate of change with a linear increase, close widget when the limit load, resistance increases, indicates the component is destroyed. Benchmark conductivity of cement-based materials are almost unchanged, until near the destroyed, violent resistance change rate increases, reflecting internal stress-strain relationship of concrete. Under fiber concrete of this a characteristics, through test carbon fiber concrete by Department of work State, can implementation on structure work State of online monitoring [2]. in into carbon fiber of injury since diagnosis concrete in the, carbon fiber concrete itself is sensor, can on concrete internal in pull, and pressure, and bending static Dutch contains and dynamic Dutch contains, external causes role Xia of elastic deformation and plastic deformation and injury cracking for monitoring. Trial found that as cement admixture in the amount of carbon fiber strain sensor sensitivity much higher than the General resistance of the strain of it. Also found in the fatigue test, under no stretched or compressed, bulk conductivity of carbon fiber concrete material with the irreversible reduction in the number of fatigue. Therefore, this phenomenon can be applied to concrete monitoring of fatigue damage of materials. Through the induction of concrete of calibration, researchers decided to relationship between impedance and load, which could determine the self-inductance of vehicles on the highway should be built of concrete parameters such as position, the load and speed, providing material foundation for intelligent traffic management.

　　Except with carbon fiber reinforced concrete of pressure-sensitive, it also has a temperature sensitive, namely resistance change due to temperature changes (-based composites) and carbon fiber reinforced concrete internal temperature difference will produce a potential difference of thermoelectric (Seebeck effect). Tests indicated that, at the highest temperature of 70 ° c, maximum temperature within the range of 15 ° c, the difference in electric potential (e) linear relationship between the temperature t and have good stability. When the carbon content reaches a critical value, the temperature difference electromotive force rate Maxima and higher sensitivity, so you can use this material for real-time monitoring of changes on the inside a building and the surrounding environment; can also be realized on the big volume concrete temperature monitoring as well as for heat-sensitive components and is expected to be used for temperature control such as fire alarms and fire alarm requirements of intelligent concrete structure.

　　Carbon fiber reinforced concrete in addition to self features, can also be used in industrial static construct. Highway roads, airport runways of snow and ice. Cathodic protection of reinforcing bar in reinforced concrete structures. Electric heating of residential and farm structure.

　　1.1.2 optical fibre sensing intelligent concrete

Fibre sensing intelligent concrete [3], that is buried in the concrete structure of key parts or its people into the fiber sensor array, detection of concrete carbonization and internal changes of stress and strain in the process of loading and deformation generated due to external forces, such as fatigue, crack and extended and other injury for real-time monitoring. Optical fiber transmission frequently suffer from the effects of environmental factors in the process, such as temperature, pressure, electric field, magnetic field, due to the change of light waves such as light intensity, phase, frequency, polarization-state changes. So people found that if you are able to measure changes in the optical output, you can know the cause of wave variation of physical quantities such as temperature, pressure, magnetic field size. So appears the fiber optic sensing technology. In recent years, and outside optical fiber sensor used for research in this area and construction of reinforced concrete structure detection, stress, strain and crack in concrete structure and the internal state of the development of fiber-optic sensor technology research, including in the process of hardening of the concrete structure of monitoring and long-term monitoring. Application of optical fiber sensors, provides intelligent civil structure and internal State, online in real time nondestructive testing methods, conducive to the overall structure safety monitoring and evaluation and maintenance. To date, optical fiber sensor has been used in many projects, typical engineering Canada Caleary named Beddington, a Tail in the construction of a highway bridge with two spans of internal strain monitoring; United States a hydroelectric dam in vibration monitoring of Winooski; domestic engineering red Groove House bridge on Chongqing-Chongqing Expressway safety evaluation system and monitoring and long-term monitoring of Wuhu.

　　1.2 self-adjusting intelligent concrete

Effect of self-adjusting intelligent concrete with power and heating effect properties. In addition to the normal load of concrete structures, people want it to be during a typhoon, earthquake and other natural disasters, to adjust the carrying capacity, and slow down the structural vibration, but as concrete itself is inert materials, to achieve the purpose of self-regulation must be composite component that has driven features materials such as shape memory alloys (SMA) and electrorheological (ER). Shape memory alloy with shape memory effect (SME), than at room temperature tensile plastic deformation of the elastic range, when heated above phase transition temperature from about at least, appears to make the original residual deformation disappears, and restored to its original size. Shape memory alloy embedded in concrete, using shape memory alloy temperature sensitivity and ability to restore the shape under different temperature, abnormal loads in concrete structure at the time of rejection, by change of shape memory alloy, internal stress redistribution in concrete structure and produce certain prestressed, thereby improving the bearing capacity of concrete structures.

　　Electrorheological (ER) is a can be controlled by external electric field to its viscosity, rheological properties such as elastic suspended colloid of liquid bi-directional change. Under the effect of external electric field, current variants can be combined within 0.1ms time solid gel of a chain or network structure, chudu tone with the electric field increases it to completely cure, when demolition when an external electric field, you can still recover its rheological State. In concrete, composite electrorheological, use this flow of electrorheological effect, when the concrete structure by Typhoon, adjusting the rheological properties of its internal when the earthquake struck, change of structure self-vibration frequency, to achieve the objective of slowing structural vibration damping characteristics.

　　Some of the buildings on the indoor humidity has strict requirements, such as various types of galleries, museums and art gallery, to achieve stable humidity control, often requires a lot of humidity sensors, control system and the complexity of wiring, its costs and maintenance costs are higher. Japan scholars developed the automatic adjustment of the temperature of the concrete material itself can be completed on the indoor relative humidity probe, and according to the need to control it. This brings automatic adjustment function of humidity of concrete material is the key component of zeolite powder. Its mechanism is calcium containing silicate in zeolite (3-9) X10-10m porosity. These pores can be under water, N0x and selectivity of S0x gas absorption. Through to select the type of zeolite, practical application needs can be prepared in line with automatic regulation of humidity of concrete composite. It has the following features: priority water adsorption; low vapor pressure, its hygroscopic capacity; absorption, moisture absorption and temperature-related, the temperature rise on wet, moisture when the temperature falls.

　　1.3 self-healing intelligent concrete

Concrete structure for use during most of the structure is the joint work of. Cracks on concrete, strength not only to reduce, and CO2 in the air, acid rain, and chlorides such as prone to menace through cracks in concrete, concrete carbonation and corrosion of reinforcing steel within the concrete, the underground structures or disposal facilities containing dangerous goods are particularly unfavourable, once the cracks occurred in concrete, very hard to check and repair. Self-repairing concrete is that should arise from the need in this area. Humans can see human skin after a cut in real life, with good skin will naturally long for some time, and patch perfect; after the breaking of bones, as long as the good bone joints, broken bones will heal automatically. Since healing concrete [4] is imitation biological organization, on by trauma parts automatically secretion a species substances, and makes trauma parts get healing of function, in concrete traditional components in the composite characteristics components (as contains bond agent of liquid core fiber or capsule) in concrete internal formation intelligent type Bionic since healing neural network system, imitation animal of this bone organization structure and by trauma Hou of regeneration, and recovery mechanism. Phase compound method of bonding material and the base material, so that after the material damage, with self healing and regeneration function, restore or improve material performance of new composite materials. In Japan, headed by Professor dongbeidaxue bridge Hakuzo Japan scholars to capsule containing binder or hollow glass fibers in concrete mixed materials, once cracking of concrete under external force, part of the capsule or rupture of hollow glass fibers, bonded liquid outflow and deep cracks in people. Bonding liquid to make concrete crack healing again. United States Carolyn Dry of the University of Illinois in 1994 to adopt similar methods, hollow note people acetal polymer solution in the glass fiber concrete in concrete as a bonding agent buried people with self healing capabilities. Carolyn Dry on this basis according to the structure and formation mechanism of animal bones, try Bionic concrete preparation materials, the rationale is that the use of calcium phosphate cement (single polymer) as the substrate material, in which the people of woven fiber porous network. In the process of cement hydration and hardening, porous fiber releasing single polymer and polymerization initiator aggregates into polymers, polymerization of water left participation in cement hydration. This fiber network formation on the surface of a large number of organic and inorganic compounds, they interspersed bonded to each other, eventually with animals is the composite of bone structure similar to that of the combination of inorganic and organic materials, with excellent strength and ductility properties. And materials used in the process, if an injury occurs, release polymer porous organic fiber, healing injuries.

　　2 intelligent regulation of coagulation status and problems of

Earlier self diagnosis, self regulating and self-repairing concrete is the primary stage of the study on intelligent concrete, they only have a basic feature of intelligent concrete, is a simplified form of intelligent concrete. It was also known as the smart concrete. However, this features a single concrete and not play smart concrete role, currently is working on will be assembling more than 2 features so-called intelligent Assembly of concrete materials. Smart concrete material is assembled with self-sensing, apoptosis and repair components materials and concrete substrate compound and arranged according to the structure needed to achieve internal damage of concrete structure seismic vibration of self-diagnosis, self-healing, and intelligent.

　　Smart concrete with broad application prospects, but as a new type of functional materials, if put into actual projects, there are many issues that need further study: stability, such as carbon fiber reinforced concrete resistivity electrode arrangement, durability etc; fibre concrete with optimal arrangement method of optical fiber sensing array; selection of adhesives for self healing concrete repair. After people and healing methods of improvement of concrete durability. Address the above issues will have a far-reaching impact on future development of smart concrete. To promote the smooth conduct of the study on intelligent concrete work is necessary to reach a consensus on the following points:

(1) development should be targeted. By targeted I mean against performance deterioration of concrete and structural damage occurs, consider various intelligent methods, such as in response to those phenomena, ideas developed a means to address all of these cases is difficult, therefore, narrow the scope of intelligent, targeted to a function, to develop relatively the most adapted approach is necessary.

　　(2) should have the possibility in the implementation. Pouring concrete at the construction site and as a smart concrete construction method, its technology and process requirements are not too high. Should be based on the original technology developed by simpler methods. Selection of materials with chemical stability, conducive to the safe use of stimulus are not volatile of any odors, and other harmful substances, and a large number of application and low cost.

　　(3) design should be comprehensive. Used intelligently, can improve the durability of the materials, but will also have a negative effect. Although due to the use of certain materials to control a certain deterioration and to improve, but will affect other properties such as strength, all of these positive and negative aspects of the problem must be considered and weighed in judging and design time.

　　3 conclusion

Smart concrete is a product of the age of intelligent, it in the net output of major civil infrastructure contingency lossless monitoring, damage assessments, repaired in a timely manner and to mitigate the impact of the typhoon, earthquake, and many other have great potential, to ensure the safety and long-term durability of the building are of importance. But in the context of modern architecture to the development of intelligent, the study of traditional building materials, manufacturing, defect prevention and repair of all poses a strong challenge. Intelligent field of concrete as a building material of high-tech, has added new content for the future development of traditional building materials and energy also offers new opportunities. Their development will make the application of concrete with a more broad prospects and have an enormous social and economic benefits.

Current external wall insulation, uneven quality, marketing cloud sth For this, it was said, it is said that bad, some say no say. “Different people have different views have expressed all kinds”. To this end, our designated the layout, benevolent published out the kernels of wisdom to the wise, only one objective: that is to make the building energy-saving avoid detours, don’t go the wrong way. At the same time, we also hope that the people in the industry and interested people of exterior wall outer thermal insulation tell us their insights, we are willing to honestly tell you.

EPS thin plastering exterior insulation system is the large number of exterior wall external insulation system in one of the most widely used system. However, a number of EPS thin plastering exterior insulation projects suffered different degrees of cracking, peeling and other more serious quality issues. The root causes of these problems boil down mainly has following several aspects.

Quality of insulation Board and fixed issues

For many years, to EPS thin plastering exterior insulation system in engineering, related standards and technical regulations have made clear, bulk density should not be less than 18 kg per cubic metre. In fact, there are only 15 kg in many engineering applications, there is even less than 12 kg. Board thermal insulation properties and strength does not meet the requirements. For how the EPS debate on plates fixed to the wall a lot, because different fixation methods for solid and different degrees. In General, as long as the adhesive quality, bond is the most secure. Besides using bonding method, also appeared with expansion plug screw, made of wire mesh fixing, the plates hang, fish-tail and concrete way. Regardless of what form, in theory, should be to maintain maximum fixed plate and wall area is preferred. Per square metre, with bonding methods form a force much larger than the expansion screws or with a few narrow tail chute can withstand tension.

Which adhesive is secure

In the late 90 ‘s of last century, advanced polymer emulsion and supporting auxiliaries and dry plastic enterprise in domestic production and after sales, some domestic seller of dry powder to hold what they call a technical formula, start simple imitation of the production. Judging from the quality of these powder adhesive and its application, the prevalence of the following questions:

First, the quality. Introduced domestic dry glue is mainly of ethylene-vinyl acetate polymer products, from the adhesion strength and resistance, water resistance and other properties, to a large extent, it’s not acrylic polymer adhesives, particularly with regard to flexibility, which had a big crack extension resistance of, good effect of anti-shedding.

Second, supporting auxiliaries. Very few varieties of domestic supporting for dry powder adhesive additives, due to the additive does not fit, performance varies with each other, have affected the stability of the system of quality.

Third, the cost. In General, dry powder adhesive cost is relatively high, made from polymer emulsion process of dry powder increased costs, while supporting the dry powder additive prices higher. So, lots of dry powder adhesive manufacture, is a method of reducing additives for polymer content and no or little used, performance is greatly affected.

Currently introduced of polymer powder in the dry substances only accounted for 82% around, and for the class adhesive of acrylic polymer emulsion in the dry substances content can up 50% above, on using same volume of polymer dry substances,, using emulsion of volume and powder glue volume of proportion for 1.64:1, price than for 0.64:1. in products of cost phase while, acrylic class polymer emulsion formula in the polymer dry substances can more with 52%.

Domestic market to purchase powder adhesive, for some companies, seems to be the low price, but in fact it is less and made of polymer powder and its auxiliary method, is to sacrifice quality for low cost. In addition, from the production of acrylic emulsion adhesive in the market, quality is uneven, mainly because:

, Improper species selection of polymer emulsion. For the kinds of emulsion adhesives require both special weather-resistance, aging resistance and has excellent antioxidant, such emulsions should be high bond strength, good resistance to water, has a certain elasticity after curing, the alkali resistance must be excellent.

Second, the amount of polymer emulsion is too small. Cement weight, dry matter weight of polymer emulsion should not be less than 8~10, and cannot be guaranteed a high bond strength and good water resistance, alkaline resistance and crack resistance.

Third, supporting auxiliaries or less variety of polymer emulsion is insufficient. Higher prices of some of these additives, but in order to ensure that quality must be used.

Four, combined with high impurities of quartz sand. Contains a lot of heavy metal ions in due to the quartz sand and other impurities, have a greater influence on stability of polymer emulsion.

From the perspective of our present situation, using the production of acrylic polymer emulsion adhesives, as long as strict quality against quantity distribution, is not difficult to produce a variety of excellent adhesive.

Specification for adhesives must pay attention to

Now with the main insulation of EPS Board system, is based on EPS panels + glass fiber mesh + polymer mortar to form a whole, it not only to have heat insulation performance, also need to resist the inward pressure of wind, the rain, sunshine, and the severe erosion of high temperature performance, if only from the EPS Board to request this insulation performance as a whole and that in itself would be quite wrong. Currently on the insulation system of life requirements in 25-30 years, because outside environment of changes is large, to coatings do exterior surface layer fundamental guarantee can’t this life, General of coatings only has 8-10 years of life, 8-10 years Hou, directly contact outside of surface layer polymer cement mortar on played up has protection EPS plate of task, therefore on requirements it of strength, and resistance waterborne, and resistance waiting sexual and the resistance frozen sexual and should building body expansion shrink of elastic, are must far is greater than EPS plate of performance indicators, so on on adhesive of technology indicators must given enough of attention.

Problems in construction

First, the construction cost too low lead materials shoddy. A case study of Beijing market, the cost per square metre of insulation began more than 100 million has gradually decreased to $ 80, $ 70, $ 60 or $ 50, and some people even to 40 contract projects. In fact, we can clearly calculated that fees, labor costs are fixed and EPS panels, adhesive for glass fiber network the percentage cost far less, ultimately only adhesive cost efforts, quality issues came out.

Second, primary treated worse. If the external wall cement mortar, adhesive only 2.5~3 kilograms per square meter of insulation can be a, if uneven, 4~4.5 kilos of adhesive so that it had lost more than 10 million per square meter. And now also popular grassroots directly without plastering of external wall thermal insulation, if your home decoration needs to punch, destroyed the insulation layer.

Third, for various reasons, insulation unit cost died, constant amount of water and cement, decrease the proportion of polymer in polymer mortar, severely reducing the quality.

Four, in the actual construction of polymer mortar plastering, often leveling using ordinary PuTTY. Because the kind of PuTTY are extremely easy to crack, affecting the decorative effect of insulation and exterior surfaces. Should be water resistant elastic PuTTY for first levelling, and elastic paint brush, the EPS plate formation with elastic outer layer of protection.

To sum up, external wall thermal insulation quality is objective but is not difficult to completely solve the problem. From the perspective of domestic realities, EPS thin plastering exterior insulation system is a practical way of insulation, as long as strict management and steadily promoting, can certainly play an important role in building energy-saving work.

2.2 there is a problem

2.2.1 production enterprises, small-scale economic difference

Characteristics of coating production with low investment and quick. Township enterprises rapid development since reform and opening, around the small paint factory roll in, coating production enterprise has more than 4,000 enterprises throughout the country. Most of the enterprise blind pursuit of large, self-contained, nothing, nothing but fine, did not form their own competitive products, leading to poor Enterprise economic benefit, the overall low level of industry. Technical transformation of enterprises cannot be expanded reproduction and difficult with related industrial developments, much less consumer demand to guide users.

2.2.2 the material does not fit

Additives for coatings production involves solvents, resins, paints, hundreds of kinds of raw materials. Coatings used in the production of some commodities such as rutile titanium dioxide, methyl ether of Amino-resins, vinyl versatate, grade pigments and various special-purpose auxiliaries such as long-term shortage. Some less paint special raw material specifications, poor quality, seriously affecting the introduction of normal production of the device, also influenced the development of new products and development.

2.2.3 serious overlapping of

Automobile paint, for example, only three years of the 1994-1996, Japan Kansai paint company in Hunan, Chongqing, Shenyang, Tianjin, China and four, the same technology has established four automotive coatings joint venture production factory. Results of this are undoubtedly benefit foreign companies, damage to our country.

2.2.4 less investment in scientific research and development

Foreign study on resin for paint very seriously, and the basic study on strength of coatings industry in China is very weak, tend to confine the formulation of research on scientific research and development investment is only 1.2% of the total product sales (abroad is generally 5%~10%). Moreover, domestic paint industry there is only harmful trends of production processes at the expense of construction application, making good products do not have access to good effect. Relatively weak product after-sales service.

2.2.5 standard for coating products lagging

Coating standards lag behind the development of coatings for the formulation of the product. Standard paint products in China lack of unified supervision and management of effective means, to the fake and shoddy products to an opportunity, disturbing the coating market in China, damages the enthusiasm for production of State-owned enterprises and undermined the image of national industry.

2.2.6 wastes treatment did not pay sufficient attention to

Wastes from paint coatings industry raw material production, the production of coatings and coating processes.

Resin for paint production process, the escape of small amounts of volatile organic compounds into the atmosphere. When the amino resin produced, there is a certain amount of formaldehyde (about 3%) volatile; at the time of production of phenolic resin, epoxy resin, such as, to produce a certain amount of waste water.

In paint production, much due to the large amounts of organic solvent-containing products, will inevitably have a solvents to the volatile atmosphere. Traditional anti-rust coatings contain heavy metals such as lead, chromium, Zinc salt, such as improper use can also cause pollution to the environment.

Paint in construction, particularly paint curing process of baking, hundreds of thousands of tons of volatile organic solvents into the atmosphere, serious pollution of the environment. In addition, sales of polyurethane coating on the market, seriously free isocyanate monomer content over, the construction of distributed into the atmosphere, polluting the environment, risks to human health.

3. the development and countermeasures of Chinese coatings industry

According to the Chinese coatings industry development present situation and development of related industry requirements and technical progress and development trend of world coatings industry for reference, 21st century, the guiding principle should be the development of Chinese coatings industry: developing high performance, low contamination coatings, and to promote the development of coating production towards the direction of specialization.

3.1 adjusting products structure

One is to gradually eliminate backward techniques, equipment and poor quality products, such as the low end of the building interior wall paint coating polyvinyl alcohol water glass (106), polyvinyl coatings (107), coating of starch, starch modified by cellulose paints and other products.

Second, developing high grade synthetic resin coating, high grade synthetic resin coatings by the ratio of the current 70%, raised to per cent in 2005.

Third, we must vigorously develop energy-saving low-pollution of water-borne coatings, high-solid coatings, powder coatings, solvent-free coating and curing of coatings. In architectural coatings, improving the latex coating ratio, and by 2005 had reached 50%~60%. Coatings for industrial products, expand waterborne coatings, application of high-solid paints and powder coatings, by 2005, to achieve the 15% ratio of waterborne coatings, powder coatings are reached 10%. To achieve this goal, the share of energy-saving low-polluting paint coating production from the present almost 30%, raised to per cent in 2005.

Four is the change in State-owned enterprises pursue large, self-contained production models, recommends that the State formulate encourages improving special coating technology, phase out inferior performance coating products policy, automobile, aircraft, containers, heavy duty, high grade furniture, and other special-purpose coating and functional coatings have formed certain scale of production, strengthening specialized production, and to promote coatings industry product structure optimization.

Five is the importance to solve supply problems of high-grade raw materials for coatings. Digestion and absorption of imported technology through independent development, specialization, large-scale production achieve universal resin; localization of basic inorganic pigments, additives for key implementation; increasing raw material self-sufficiency, create conditions to improve the product structure of the coatings industry.

3.2 improve the level of technical equipment

Gradual reconstruction of the existing production equipment, raise the level of automation and productivity, reduce labor intensity and improve the operating environment. Mass production to achieve device-scale, high temperature resins using dowtherm heating system.

3.3 strengthening of scientific research and development

Major breakthrough on the national economy has a greater impact of research and development of special coatings.

Focus development super resistance waiting sexual (10 years above) building coatings, as organic silicon, and organic fluoride and modified sexual of acrylic ester class LaTeX coatings; speed up car coatings waterborne of, and series research, to car paint for focus, main high decoration, and low pollution car paint, development waterborne of, and high solid min, and no solvent and metal Flash paint and Gao Xian map of, varieties; development anticorrosion limitation in 15 years above of bridge and ship with anti-corrosion Coatings; development has special function of fire coatings, and noise coatings, and resistance high temperature coatings, and insulation coatings,; development low energy consumption high performance of various fat family and aromatic family polyurethane coatings and the epoxy resin coatings. Makes car paints, Marine coatings, container coatings, architectural coatings, corrosion resistant coatings and other aspects of the production technical level to advanced level of the early 90 ‘s, largely to meet the requirement for the development of related industries.

3.4 environmental protection and increase the intensity of law enforcement

At present, China paint in construction, there are hundreds of thousands of tons of volatile solvents into the atmosphere. Volatile solvents is the second auto emissions of dust and smoke after the third major air pollution sources. Recommends that the State formulate “coating production and environmental protection statute”, limits the use of volatile organic compounds in paints, and prohibiting the production and use of coatings with high VOC content. Specific control measures are as follows:

(1) formulating VOC limits and regulations, in the civilian paint, VOC content shall not exceed 250g/L.

(2) vigorously without the development and application of heavy metal anticorrosive pigment, such as aluminum, zinc phosphate, Tripolyphosphate micaceous iron oxide antirust pigment, alternative to traditional poisonous red lead, chrome, lead and chromium antirust pigment, pigments and limited regulation of heavy metals and the progressive development and implementation.

(3) attaches great importance to polyurethane paint divorce in middle reaches of cyanate ester monomers serious over specification problem, to intensify research and development of technology to reduce free monomer content.

3.5 Optimizing enterprise structure, strengthening the specialized production

To enhance the industry-wide economic efficiency and stability of product quality, to actively encourage and guide enterprises towards the direction of specialization development: resin production specialization of production specialization, coatings, colorants production specialization, on the basis of the formation of large-scale production.

In the context of increased competition in the market, to ensure the prosperity of national industry, enhance the competitiveness of domestic products, to focus our efforts on supporting the superior and strong, and through necessary and helpful optimization and reorganization, make all kinds of special coating of the main production enterprise formation in terms of scale, variety and quality advantage, driving the industry forward and compete with foreign products.

3.6 improvement, improving statistical methods for paints

Coatings in China over the years has been more film-forming method of statistics only, not conducive to the development level of mastery of technology and product flow. Coatings industry generally uses and products abroad status (powder, solvents, water, etc) and combined with film-forming type of statistical methods, paints table alone, we can understand the consumption of paint composition and level of technology development. Paint statistics in China has to shift toward this direction. Specific implementation of the method was first developed by a national product classification standard, then guided enterprise statistics and reported to the factory paint products accordingly.

3.7 amendment coating product quality standards

Proposed amendments to our coating product quality standards, and increase the intensity of law enforcement, combating fake and shoddy products, standardize the market order, avoiding waste of resources, effectively promote coatings production technology of improve.

3.8 continues to expand foreign economic and technical cooperation

With the continuous improvement of foreign-related economic legal system in China, and the investment environment will be better and better. Direct foreign investment, as an important component of China’s opening up, and will continue to implement in the future. Countries to gradually reverse the foreign direct investment in China, Middle East, declining trend in the order in the West, will develop guiding policy in foreign investment in China to encourage foreign businessmen to invest in the Midwest. This will also become one of the important measures of our Government to speed up the development of the Midwest. Coatings industry should be consistent with the country’s foreign economic policy, create conditions to actively introduce advanced technology, investments, and tilt toward the Central and Western regions, promoting the balanced development of coatings industry in China.

3.9 uniform tax system for enterprises to create a fair competitive environment

To cancel local protectionism, unified tax system, make all paint companies are in the same starting line, achieving industry-wide fair and orderly competition, promoting the process of implementation of the policy of Chinese coatings industry.