Leakage problems in buildings in China have always plagued the engineering market, and the latest industry survey has presented problems in figures. On July 4, China Construction Waterproofing Association and Beijing Zero Market Survey and Analysis Co., Ltd. jointly released the 2013 National Construction Leakage Investigation Project Report. A total of 2,849 buildings were surveyed in this sampling. The leakage rate of building roof samples reached 95.33%; the leakage rate of underground building samples reached 57.51%; the leakage rate of household samples reached 37.48%.
Building waterproof material is used as the basic material for engineering construction. The advantages and disadvantages of building waterproofing are related to structural safety and living comfort. However, there are more and more cases of leakage in the media. According to data from the Beijing Construction Engineering Judicial Identification Center, one quarter of legal disputes in the field of construction engineering are caused by leakage of residential buildings.
In 2013, the total output of major building waterproof materials was approximately 154.206 million square meters, a year-on-year increase of 13.7%, and the industrial output value has exceeded 150 billion yuan. At the same time as the rapid development of the industry, some deep-seated contradictions gradually emerged - serious outdated production capacity, serious low-level redundant construction, and low industry concentration.
'The serious excess production capacity led to 'black industry chain' raging. Zhu Dongqing, chairman of the China Building Waterproofing Association, told the China Real Estate News reporter that comprehensive governance as a kind of restoration of the government's supervision system is the main quality management method at this stage. However, to completely solve the building leakage problem, it is necessary to establish and improve the marketization. Quality management model.
Black industrial chain behind building leakage
The leakage of construction in the country is quite serious. The sample survey involved 28 cities and 850 communities in Beijing, Tianjin, Shanghai, etc., surveyed 2849 buildings and visited 3,674 households. The data show that 2,916 of the building roof samples had 2,716 leaks of varying degrees with a leakage rate of 95.33%. Among the 1,777 underground construction samples, 1,022 had leakage of different degrees with a leak rate of 57.51%; household sample 3674 Among them, there were 1377 leaks with different degrees, and the leak rate reached 37.48%.
'Different places, different projects, leakage is not the same. However, this survey data has a certain representativeness, and the overall building penetration rate is relatively high. 'The assessment was made by Ye Linbiao, deputy chairman of the expert committee of the China Architectural Society's waterproof technology professional committee.
In the eyes of the industry, the leakage of the building is behind the serious overcapacity of the building waterproof material industry leading to 'black industry chain' raging.
At present, the production capacity of formal enterprises with production licenses in the waterproofing industry is less than 60%. The number of SMEs with poor production processes and energy-saving and environmental protection standards is high, and most of them are backward production capacity. What's more, undocumented production and counterfeiting and denting have formed a semi-public "base."
'These contradictions are reflected in the market, that is, low-cost competition at the expense of product quality and corporate integrity, leading companies to cut corners, shoddy, produce a large number of fake and shoddy and does not meet the relevant national standards for waterproof products serious phenomenon. 'Zhu Dongqing said.
At the same time, due to the flaws and poor supervision of the construction project management system, these fake and shoddy products have flowed into the engineering market. It is understood that the bidding for construction waterproof projects in China uses the lowest bid, often with the phenomenon that the bid price is lower than the cost price. This creates a market space for fake and shoddy products. The waterproofing project was subcontracted and the supervision system was in a form that could not shut down the quality of materials and construction. 'The construction qualifications are heavily linked and the construction workers lack the necessary labor skills. Even the best materials cannot guarantee the quality of waterproof projects. 'Zhu Dongqing added.
As Ye Linbiao said, building leakage involves problems in project cost, design, construction, materials, maintenance, etc., and the reasons for different projects are not consistent.
At this stage still need to rely on comprehensive management
Leakage problems have caused the government's attention. In October 2013, the Ministry of Housing and Urban-Rural Development issued the Notice on Deepening the Implementation of the National Specialized Project Quality Remediation Work. Leakage was listed as the top priority in the quality of construction projects. The plan was to use five years for special treatment. The General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China has included building waterproofing membrane products in the list of key products for quality improvement throughout the country for three consecutive years.
The results of national supervision and spot checks of waterproof materials in 2013 showed that 200 batches of construction waterproof coiled products, including 34 batches of products, were produced by 200 companies in 8 provinces and municipalities including Beijing, Tianjin, Hebei, Liaoning, Jiangsu, Zhejiang, Shandong and Henan. Does not meet the standard requirements.
'Leakage is the ills of construction. We must mobilize the strength of the government, industry, enterprises, and society to make concerted efforts and comprehensive management. 'Zhu Dongqing believes that at this stage, it is still necessary to use the strength of the government to establish and improve the quality control system in the application field.
For example, improve the bidding mechanism, remove the simple 'lowest price bid', and turn to quality-oriented guidance; strictly control construction qualifications, strengthen workers' skills training, and promote the integration of waterproof special construction by subcontracting by owners and construction of waterproof materials. , To prevent the subcontracting of waterproofing works; to strengthen production licenses, to strengthen the management of licenses for production licenses and post-certification supervision, and to maintain a high pressure on the quality supervision and enforcement of construction waterproof products.
The industry also hopes to curb the 'black industry chain' from all aspects, and to curb disorderly competition through information such as law enforcement information, non-compliance information, untrusted information, and quality blackout lists.
It is also known that under the leadership of the China Construction Waterproofing Association and some local branches, some waterproof companies have launched a declaration of industry self-discipline for quality improvement, and the association has accordingly conducted self-discipline inspections. Zhu Dongqing said that it is necessary to carry out autonomy in the industry and continue to expand the scope of dynamic supervision and quality of industry quality.
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