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Recently, the Yunnan Provincial Quality Supervision Bureau recently issued a special supervision and spot check on the building materials used in the restoration and reconstruction of the Ludian and Jinggu earthquake-stricken areas. The results showed that 33 batches of products were unqualified and the unqualified products had a detection rate of 11.7%.
Resolutely block the "problem" building materials in the disaster area
Monthly quality inspection report
After the Ludian and Jinggu earthquakes, all departments at all levels in the province went all out to carry out post-disaster recovery and reconstruction work, especially to ensure that the affected people warmed up for the winter and lived in a new home before the Spring Festival. In order to prevent the quality of houses caused by construction materials problems, the Provincial Quality and Technical Supervision Bureau spent two months, and carried out special supervision and spot checks on the building materials used in the reconstruction of Ludian and Jinggu. The results of the spot checks show that there are some quality problems in some products, and the “problem†products must be firmly blocked.
It is reported that this survey involves a total of 275 batches of 275 production and distribution companies, covering 8 districts and counties of Pu'er City and 4 districts and counties of Zhaotong City. After inspection, there were 33 batches of products that were unqualified, and the unqualified product detection rate was 11.7%.
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More than 10% of products have quality problems
According to the unified deployment of the Provincial Quality Supervision Bureau, the Pu'er City Quality and Technical Supervision Bureau and the Zhaotong City Quality and Technical Supervision Bureau are implemented in conjunction with local actual conditions. The key areas for spot checks are Pu'er Jinggu and Zhaotong Ludian; the key products for spot checks are building materials such as cement and building bricks with large recovery and reconstruction after disasters; the focus of the spot checks is on production enterprises and building materials suppliers.
According to the spot check report provided by the Provincial Quality Supervision Bureau, Pu'er City arranged a total of 144 batches of products from 137 companies, including six types of products, including construction bricks and construction steel bars, and 12 batches of products were unqualified. The detection rate of unqualified products was 8.33%. Zhaotong City arranged for the quality supervision and inspection of three kinds of products such as cement, building bricks and rebar. A total of 138 batches of products from 138 enterprises were sampled. 21 batches of products were unqualified, and the detection rate of unqualified products was 15.22%.
Judging from the product categories of the sampling, the construction steel bars were used to inspect 58 batches of products from 57 enterprises. After inspection, the product quality was all qualified. The building bricks were mainly checked for sintered bricks and concrete solid bricks. A total of 131 batches of 125 production enterprises were sampled. The detection rate of unqualified products was 17.56%. The unqualified indicators of sintered bricks are mainly weathering resistance, frosting and lime bursting; the unqualified indicators of concrete solid bricks are mainly compressive strength. Ceramic tiles were randomly selected from 40 batches of 40 companies. The detection rate of unqualified products was 25%. The unqualified indicators were mainly size and thickness. The building formwork used plywood to check the 6 batches of the 6 production enterprises, all of which were unqualified. The unqualified indicators were mainly formaldehyde exceeding the national standards.
Enterprises should put good product quality
According to the spot check report provided by the Quality Supervision Bureau of Zhaotong City, this unsatisfactory production of cement products is P.C32.5 produced by Sichuan Qilian Southwest Cement Co., Ltd. The unqualified index is the average value of the flexural strength of 3d. The average value of compressive strength of 3d and the average value of compressive strength of 28d, the cement production enterprises within the jurisdiction of Zhaotong City did not appear to be unqualified.
Most of the production enterprises in Qiaojia County did not produce the concrete core bricks with compressive strength ≥10.0 MPa according to the regulations of the Qiaojia County Government, resulting in most products failing.
According to experts, the main reason for the above-mentioned "problem" products is that the price of cement and stone is rising during the post-disaster reconstruction period. Some enterprises have reduced the cost and pursued profits, and incorporated a large amount of sand and gravel in the production process, resulting in concrete solid bricks. The compressive strength of the pressure is unacceptable. Due to the strong market demand, some brick factories are greedy and profitable. Bricks with insufficient curing time are also sold as finished bricks, resulting in unqualified product strength and hidden dangers for building safety.
In addition, the failure of sintered ordinary bricks is common. Mainly because the production enterprises did not standardize the sampling inspection of raw materials, and failed to put good raw materials into the factory. Most enterprises have no inspectors or inspectors without training, and the proportion of raw materials is based on experience, randomness and inaccurate processing. As a result, the frosting and lime burst indicators of sintered ordinary bricks are unqualified. In order to increase production, the production company often produces the finished product in less than 30 hours after the embryo enters the kiln (normal firing cycle is more than 40 hours), and the burning temperature is not in place, resulting in blackness, reduced strength and compressive strength of the product. Does not meet national standards.
The Pu'er City Quality Supervision Bureau conducted a sampling test on four categories of products in eight counties (districts). The spot checks focused on Jinggu, Ninglang and Simao counties (districts). The total number of sampled samples was 94 and 101 batches. There are 57 batches of wall tiles 51, 6 batches of concrete formwork, 8 batches of 8 cement, and 30 batches of 30 steel bars. Spot checks cover the areas of production and circulation. For the plywood, cement, concrete formwork plywood and steel products involved in this spot check, if there is no local production enterprise, the sampling inspection work will be carried out directly in the circulation field. Other plywood products for wall brick, cement and concrete formwork are all Sampling inspection at the production stage.
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Resolutely block the "problem" product
The relevant person in charge of the Provincial Quality Supervision Bureau said that the spot check was to block the "problem" products, and to improve the quality of the products. After analysis, from the spot check, the quality of cement and building steel products is good, and the quality of spot check products is all qualified; while the quality problems of plywood products for building bricks, ceramic tiles and building formwork are more prominent. At the same time, there are many problems, and the company also shows problems such as small production scale, backward production process, poor production conditions, low management level and lax production control.
In response to existing problems, the Provincial Quality Supervision Bureau will go deep into the company to promote standardized production, help enterprises establish legal awareness, quality awareness and integrity awareness, and improve product quality.
Resolutely block the "problem" building materials in the disaster area
Monthly quality inspection report
After the Ludian and Jinggu earthquakes, all departments at all levels in the province went all out to carry out post-disaster recovery and reconstruction work, especially to ensure that the affected people warmed up for the winter and lived in a new home before the Spring Festival. In order to prevent the quality of houses caused by construction materials problems, the Provincial Quality and Technical Supervision Bureau spent two months, and carried out special supervision and spot checks on the building materials used in the reconstruction of Ludian and Jinggu. The results of the spot checks show that there are some quality problems in some products, and the “problem†products must be firmly blocked.
It is reported that this survey involves a total of 275 batches of 275 production and distribution companies, covering 8 districts and counties of Pu'er City and 4 districts and counties of Zhaotong City. After inspection, there were 33 batches of products that were unqualified, and the unqualified product detection rate was 11.7%.
More than 10% of products have quality problems
According to the unified deployment of the Provincial Quality Supervision Bureau, the Pu'er City Quality and Technical Supervision Bureau and the Zhaotong City Quality and Technical Supervision Bureau are implemented in conjunction with local actual conditions. The key areas for spot checks are Pu'er Jinggu and Zhaotong Ludian; the key products for spot checks are building materials such as cement and building bricks with large recovery and reconstruction after disasters; the focus of the spot checks is on production enterprises and building materials suppliers.
According to the spot check report provided by the Provincial Quality Supervision Bureau, Pu'er City arranged a total of 144 batches of products from 137 companies, including six types of products, including construction bricks and construction steel bars, and 12 batches of products were unqualified. The detection rate of unqualified products was 8.33%. Zhaotong City arranged for the quality supervision and inspection of three kinds of products such as cement, building bricks and rebar. A total of 138 batches of products from 138 enterprises were sampled. 21 batches of products were unqualified, and the detection rate of unqualified products was 15.22%.
Judging from the product categories of the sampling, the construction steel bars were used to inspect 58 batches of products from 57 enterprises. After inspection, the product quality was all qualified. The building bricks were mainly checked for sintered bricks and concrete solid bricks. A total of 131 batches of 125 production enterprises were sampled. The detection rate of unqualified products was 17.56%. The unqualified indicators of sintered bricks are mainly weathering resistance, frosting and lime bursting; the unqualified indicators of concrete solid bricks are mainly compressive strength. Ceramic tiles were randomly selected from 40 batches of 40 companies. The detection rate of unqualified products was 25%. The unqualified indicators were mainly size and thickness. The building formwork used plywood to check the 6 batches of the 6 production enterprises, all of which were unqualified. The unqualified indicators were mainly formaldehyde exceeding the national standards.
Enterprises should put good product quality
According to the spot check report provided by the Quality Supervision Bureau of Zhaotong City, this unsatisfactory production of cement products is P.C32.5 produced by Sichuan Qilian Southwest Cement Co., Ltd. The unqualified index is the average value of the flexural strength of 3d. The average value of compressive strength of 3d and the average value of compressive strength of 28d, the cement production enterprises within the jurisdiction of Zhaotong City did not appear to be unqualified.
Most of the production enterprises in Qiaojia County did not produce the concrete core bricks with compressive strength ≥10.0 MPa according to the regulations of the Qiaojia County Government, resulting in most products failing.
According to experts, the main reason for the above-mentioned "problem" products is that the price of cement and stone is rising during the post-disaster reconstruction period. Some enterprises have reduced the cost and pursued profits, and incorporated a large amount of sand and gravel in the production process, resulting in concrete solid bricks. The compressive strength of the pressure is unacceptable. Due to the strong market demand, some brick factories are greedy and profitable. Bricks with insufficient curing time are also sold as finished bricks, resulting in unqualified product strength and hidden dangers for building safety.
In addition, the failure of sintered ordinary bricks is common. Mainly because the production enterprises did not standardize the sampling inspection of raw materials, and failed to put good raw materials into the factory. Most enterprises have no inspectors or inspectors without training, and the proportion of raw materials is based on experience, randomness and inaccurate processing. As a result, the frosting and lime burst indicators of sintered ordinary bricks are unqualified. In order to increase production, the production company often produces the finished product in less than 30 hours after the embryo enters the kiln (normal firing cycle is more than 40 hours), and the burning temperature is not in place, resulting in blackness, reduced strength and compressive strength of the product. Does not meet national standards.
The Pu'er City Quality Supervision Bureau conducted a sampling test on four categories of products in eight counties (districts). The spot checks focused on Jinggu, Ninglang and Simao counties (districts). The total number of sampled samples was 94 and 101 batches. There are 57 batches of wall tiles 51, 6 batches of concrete formwork, 8 batches of 8 cement, and 30 batches of 30 steel bars. Spot checks cover the areas of production and circulation. For the plywood, cement, concrete formwork plywood and steel products involved in this spot check, if there is no local production enterprise, the sampling inspection work will be carried out directly in the circulation field. Other plywood products for wall brick, cement and concrete formwork are all Sampling inspection at the production stage.
Resolutely block the "problem" product
The relevant person in charge of the Provincial Quality Supervision Bureau said that the spot check was to block the "problem" products, and to improve the quality of the products. After analysis, from the spot check, the quality of cement and building steel products is good, and the quality of spot check products is all qualified; while the quality problems of plywood products for building bricks, ceramic tiles and building formwork are more prominent. At the same time, there are many problems, and the company also shows problems such as small production scale, backward production process, poor production conditions, low management level and lax production control.
In response to existing problems, the Provincial Quality Supervision Bureau will go deep into the company to promote standardized production, help enterprises establish legal awareness, quality awareness and integrity awareness, and improve product quality.
To this end, the Provincial Quality Supervision Bureau will specifically plan next year's important industrial product quality supervision and spot check and risk early warning testing plans, increase the intensity of spot checks on key products, key areas, and key targets, and increase the monitoring of quality and safety risks of important consumer products. , to effectively control the quality of products.
More furniture testing information is available at http://
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