According to Hunan Radio and Television Station's "City Time 1", a large number of red bricks bought by residents of Daoxian County, Yongzhou City, Hunan Province in a local Longxiang brick factory naturally weathered after being left for many days, and even broke when pinched, so they had no choice but to stop building their own houses. 65438+On February 6th, Daoxian Market Supervision Bureau replied to The Paper that the matter was under investigation. Construction practitioners said that the red bricks purchased by residents are under-burned bricks, and the curing age is not up to standard.
Residents show problem bricks
Residents say that red bricks break when you pinch them.
According to reports, in July 2022, the two brothers and sisters of Zhongjia in Dao County began to build their own houses. 10 At the end of June, when the house was built to the third and fourth floors, workers found that the red bricks had quality problems, which would naturally weather after being left for a period of time, and some even broke when pinched, and then stopped working. 165438+1In early October, when the Zhong brothers and sisters asked Longxiang Brick Factory for an explanation, they were beaten by the brick factory staff in a quarrel, and the quality problem of red bricks was not effectively responded, fearing that the completed wall would collapse. In addition, there is an old man who has a similar situation when laying bricks for his house. Repeated negotiations with Longxiang Brick Factory have made no substantial progress.
The industrial and commercial information inquiry platform shows that the above-mentioned brick factory was established in June 2065438+2007, and its site is located in Longjiang Bridge Village, Shangguan Street, Dao County. Its business scope is the production and sales of environmental protection bricks.
On the morning of the 6th, reporter Jim called the person in charge of the brick factory several times, but no one answered. A person in charge of Daoxian Longxiang New Building Materials Co., Ltd. once admitted to the media that the inferior red bricks that were crushed by a pinch flowed to the market, mainly because of problems in the previous firing process and lax quality control when leaving the factory.
Brick factory staff explain the problem brick
Earlier, Zhang, chief engineer of Dao County Market Supervision Administration, told the media that after receiving the feedback, the bureau had coordinated the product quality and consumer protection departments to deal with it. At present, the red bricks of Longxiang Brick Factory have been sampled and sent to the city for testing.
On the morning of the 6th, a staff member of the Consumer Rights Protection Unit of Daoxian Market Supervision Administration told Jim that the matter was under investigation, and the specific situation should be consulted with the Propaganda Department of the county party committee.
The relevant staff of the Propaganda Department of Daoxian County Committee said that they received feedback from the County Market Supervision Administration on the morning of the 6th, and the two sides are still in further negotiation. Sampling results and specific investigation progress need to wait for the relevant departments to form a comprehensive report.
Insiders: It's still a brick with insufficient heat, brittle brick.
On the morning of the 6th, the staff of the relevant departments of Daoxian Housing and Urban-Rural Planning and Construction Bureau said that the residents had not reported the matter to the bureau, and the problematic materials could be claimed by proof after being appraised by professional organizations.
A building materials expert suggested that relevant departments should conduct sufficient on-site investigation and send the problem bricks to professional institutions for hardness testing. The hardness test in the laboratory will get corresponding data, which can be used as one of the basis for judging quality problems.
According to the analysis of Mr. Li, the project manager who works in 16, according to the video reported by the media, the red bricks purchased by the above residents are either unburned bricks or crisp bricks, and the curing age after leaving the kiln is not up to standard. The specific situation needs professional appraisal.
Problem bricks break when you pinch them.
Mr. Li said that the red brick is wet and frozen, the firing time and temperature are not controlled in place, and the coagulation strength during the curing period after firing is not enough, which may lead to quality problems. The curing age of kiln-fired red brick should be more than 28 days, so as to ensure the setting strength. Product certificate should be provided before sale and use. Underfired brick refers to the brick that has not reached the sintering temperature or has not kept enough sintering temperature, which is characterized by dumb sound and soil core. Bricks frozen by moisture may be burnt into brittle bricks if they are fired in the kiln or preheated too quickly. This kind of brick is characterized by dumb sound and low strength. Underfire bricks and crisp bricks have poor weather resistance and durability.
Mr. Li suggested that if the above-mentioned problem bricks are used on the load-bearing wall of the self-built house, the house must be demolished; If it is used to fill the wall, it must be replaced with qualified bricks and rebuilt.
According to Hunan Radio and Television Station "City 1 Time", Dao County People's Government and Dao County Police have been involved in the investigation and the sampling work is still going on.