Experts said domestic super 90% of building insulation materials, flammable
2009, February 9, the new CCTV building fire. (Picture) CFP for map
newspaper reporter Chao intern Feng home Wei
unstoppable high-rise fire?
new CCTV building fire case the accused defense counsel Yinfu Jiang told China Youth Daily reporter, after the case was remanded by the Supreme People’s Court hearing in early March, the Beijing Second Intermediate People’s Court The trial of the accused and their families are awaiting sentencing.
March 6, 2012, the CCTV fire case for retrial in the Beijing Second Intermediate People’s Court hearing. Case three accused in the burning buildings curtain wall construction side of the Zhongshan Shengxing Deputy General Manager, Don Chu Chong, Shu-Chi, the implementation of the project department managers Valley was the tree and quality inspector. CCTV new site after the fire, three in August 2009 because of suspicion of the crime of the Project Accident approved the arrest. After the Public Prosecution Service for prosecution. “Selling fake or substandard products
prosecutor pointed out that, The zhongshan shengxing company shall provide the extruded insulation board flammability rating of B2 level. Fire, the relevant departments detected, the flame retardant properties of the insulation board did not reach the B2 level.
Yinfu Jiang Shu-Chi’s defense lawyer. He said in court to defend: “The answer to the question of the Ministry of Public Security of Sichuan Fire Research Institute on the CCTV project fire”: When the fire reaches a certain size, high temperature or high temperature and radiation conditions, all combustible materials will be involved in the combustion process . At this time, B2 and B3 level burning behavior of materials is not much difference. The conclusion is that, can not be quantified to provide the material and the fire quickly spread and the degree of association. Accordingly Yinfu Jiang lawyer the Supreme Court 刑事裁定书 “noted” the failure extruded plate is caused by the new site Lot B fire spread in an important reason for questioning.
Yinfu Jiang lawyer said extruded panels and CCTV fire necessarily a direct causal relationship can not be determined, this just might be the Public Prosecution Service Public Prosecution charges adjusted to Project Accident crime ” one important reason for the sale of fake or substandard products “.
high-rise fires, has become a serious hazard of city life.
November 15, 2010, Shanghai Jiaozhou Road, a high-rise apartment fire. The fire resulted in 58 people were killed and more than 70 people receiving treatment.
the State Council, Shanghai “11.15″ particularly serious fire accident investigation team leader, the Secretary of the State Administration of Work Safety Luo Lin said, the scene of the accident the illegal use of polyurethane foam and other flammable materials, leading to the fire quickly the spread of important reasons. Fire Bureau of the Ministry of Public Security Deputy Secretary for Zhu Liping, told Xinhua that the polyurethane foam insulation materials in building facades, burning speed, and produce highly toxic hydrogen cyanide gas is the main cause many deaths.
type high-rise fires, and can be retrieved more than 200 million results. The new CCTV building fire, fire in Shanghai Jiaozhou Road, Jinan Olympic Sports Center Gymnasium twice on fire, Harbin latitude and longitude 360 ??degrees Gemini Building fire.
time fire so that people begin to doubt, external wall insulation material is what to do? Why Paul got warm, anti not fire?
building energy efficiency and external wall insulation
October 1, 2007, “energy efficient building construction quality acceptance of the promulgation and implementation of energy-saving projects for the first time expressly provided for a division of engineering construction work. Ministry of Housing and Urban-Rural Development presented the overall goal of building energy efficiency: 2020, new buildings of the northern and coastal economically developed areas to achieve 65% energy saving. Building energy efficiency, has become one of the all of today’s energy-saving measures to reduce emissions in the most direct and effective way.
building energy efficiency, a very important aspect of building insulation materials.
experts pointed out that building insulation material is divided into two categories organic and inorganic. The organic material is extruded board, polystyrene board, and polyurethane. Light weight, good insulation, but if not produced flame retardants, it is very easy to burn, see the fire, accompanied by a large number of gas generated.
China Building Energy Efficiency Materials Association statistics show that the use of the domestic building energy-saving materials, wall insulation materials for more than 80% of the organic insulation material of polyurethane, extruded sheet and polystyrene board.
China Building Materials Federation building materials industry and technical supervision, deputy director Li Ying Kuen told the China Youth Daily reporter, China’s construction market, extensive use of polystyrene foam (EPS, XPS), polyurethane rigid foam body ( PU) and other organic insulation materials. They accounted for more than 90% of the entire insulation materials market, with the lightweight, effective insulation, etc., but it is flammable, easy to aging, poor durability. Around the insulation construction work The frequent occurrence of fire accidents, the EPS will soon melt, smoke and toxicity, it is difficult to fight the blaze, serious harm.
Lee should be right to say, high-rise fire in the insulation material has a causal association. These organic insulation materials currently in use are flammable fuels, and even point. For example, he said, the shaped plate, which is used for packaging TV and other items of white foam, with a match point. He stressed that the organic insulation materials combustion of black smoke, very toxic at the scene of the fire, most people are dead black smoke.
standard divergent
new CCTV building fire, the state has adopted the relevant provisions to improve the fire resistance of wall insulation materials. The current standard of external wall insulation material is divided into Class A (non-combustible), four levels of the B1 level (flame retardant), class B2 (flammable) and B3 level (flammable).
September,2009, the Ministry of Public Security, Housing and Urban-Rural Development Ministry to develop “civil exterior insulation system and external decorative fire Interim Provisions” (referred to as “46 No.”). In March 2011, the Fire Bureau of the Ministry of Public Security issued on further clarify the civil Exterior Insulation material fire supervision and management of the relevant requirements of the notice (referred to as “65 No.”).
two files provide a standard of external insulation materials, but the standards are inconsistent. 46, 2009, the provisions of the exterior insulation wall should not be less than the B2 level. “65 text” released in 2011 to provide civil external insulation wall can only use A-grade material.
why the two documents, a requirement for A-level material, one is asking the B-grade material? Hu Xiaoyuan tell
adiabatic energy-saving materials, Association Secretary-General of the China Youth Daily reporter, the contradiction of the two standards might be behind the conflicts of interest and the interests of entanglement.
and the State Council on the strengthen and improve the fire service, “the provisions of fire insulation materials is clear, the core spirit can not use combustible materials, strict restrictions on the use of combustible materials, new materials to promote the use of fire good and take effective measures to improve the system, fire protection, and enhance on-site construction management. But how to implement it depends on how the relevant departments to interpret, the interpretation of this policy, the public said that the public and rational woman that claim to be right, and each their own, and said do not mix. “
A-level material can promote
one point of view, production capacity, some ministries are not required to the building’s exterior wall all the material class A reason.
Hu Xiaoyuan, said after the release of 65 No., enterprises are actively on the production line. From the production of primary materials to see the end of 2012, early 2013, should be able to meet market demand.
Ke RuikeWuhu in January 2011 began to build factories, was put into operation in June 18, six months to achieve an annual capacity of 100 million square meters. Meantime also started an annual output of two hundred million square meters in Beijing and Xinjiang Production and Construction of the vacuum insulation plate factory. In Beijing, only the Branch building Prudential company a production of inorganic foam insulation board with an annual capacity of 80 million square meters, an average of 45 days to the completion of a production line.
Lee should be the right A-grade material can not be production capacity. Last year, China has at least thousands of companies on the A-class insulation materials production line, the national policy to promote the A-grade material, production capacity is not a problem.
Jinan, Shandong Class A insulation materials distributors Chen Ziyang, the Class A insulation materials market well because many buildings, such as landmark buildings, hospitals, residential, are beginning to use the A-grade material the market demand.
Tianjin, a thermal insulation, fireproofing materials company distribution customers of the person in charge of Liu Song said, since last year, by 65 No. influence, order the A-grade material is significantly higher than Class B materials, customers, sales of A-grade material and the market are good.
it was suggested that the A-grade material insulation effect is not better than the B-grade material and price aspects are much more expensive. The same insulation effect of the A-grade material than B-grade material thickness.
Lee should be the right of Class A material production continues to expand, the price will come down. Concrete slabs like foam, raw material costs less than 200 yuan/cubic meter, the plates cost less than 300 yuan/cubic meter price of 1000 yuan or so later will definitely down.
theB-grade material manufacturers through a variety of meetings, claiming that high-rise fire is not a thermal insulation material due to
Ministry of Public Security launched the “65 No.”, Shanghai polyurethane corporate meetings to discuss building insulation Outlet and Countermeasure “. Dry Yong Qin, Shanghai Polyurethane Industry Association, Shanghai Jing’an fire was caused by human reason, strange material unfair. If you do not use polyurethane and other organic insulation materials, resulting in massive lay-off in construction projects. He also said that the polyurethane itself is safe.
“A-grade materials to promote open the main reason is that policy.” Li Ying Kuen, the construction industry filled with all kinds of strange phenomenon, on the one hand, the insulation material does not fire the other hand, in practice set all sorts of levels, declined to A-grade material.
What is the first one
shaped plate and extruded panels are flammable, and use these materials, insulation, there is a great fire hazard . Li Ying Kuen believes that the development trend of insulation materials, both fire protection and insulation.
economic and fire safety, the inorganic material than organic materials. Ying Kuen Lee, A-grade material is inorganic fire, and how the points not burn, but with the building “with life”. The life of the organic insulation materials is generally 20 years, 20 years later had to replace the insulation layer.
Hu Xiaoyuan, regardless of which sector, it introduced the policy is not final. Resolve the contradictions of the two standards, rely on a higher level to coordinate. The new architectural design for fire protection “under discussion, said that department in charge of the divergence between. Regulations the force of law in the top of the department under this specification is introduced, in the end use of Class A or Class B material, there is a conclusion.
Lee should be the right opinion, the choice of A-and B-grade material, in fact, can not rely on the market game, “human life is important, or building insulation is important, I think everyone will have an answer.”
Beijing, May 2
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