Prefabrication of Concrete Houses in Shanwei City

Shanwei City has industries and services related to the prefabrication of concrete houses, covering the production of PC components, concrete supply, and engineering applications, but attention should be paid to the quality spot checks of prefabricated components.

I. PC Component Production and Service Coverage in Shanwei City

Several PC component manufacturers in Guangdong have extended their service areas to Shanwei City, providing prefabricated components required for prefabricated buildings, including PC interior wall panels, ALC exterior wall partition panels, prefabricated solid columns, and bay window composite panels. These components are produced through standardized factory processes, significantly enhancing construction efficiency, reducing on-site workloads, and minimizing construction waste generation, aligning with the trend of green building development. For example, ALC exterior wall partition panels are lightweight, fire-resistant, and soundproof, suitable for exterior wall systems in residential and school buildings; prefabricated solid columns are molded with high-precision molds, ensuring the stability of structural load-bearing performance.

II. Local Concrete Enterprises Participate in Prefabricated Engineering Applications

Shanwei Zhongwen Concrete Co., Ltd., a local enterprise with professional qualifications in ready-mixed concrete, has participated in multiple municipal and civil engineering projects, such as the Shanwei Vocational Skills Training School Construction Project and the Central City Underground Drainage Network Upgrade and Renovation Project. Its concrete products, such as prefabricated trenches and inspection wells, are directly applied to underground infrastructure, demonstrating the widespread application of concrete prefabrication technology in municipal engineering. Additionally, the company has complete qualifications and its production processes comply with regulations, providing quality assurance for the localized supply of prefabricated components.

III. Quality of Prefabricated Components Requires Special Attention

According to the supervision and spot-check results of building materials for housing and municipal engineering projects in the city from October 16 to November 13, 2024, the pass rate of concrete blocks (which may involve prefabricated components) was only 50%, significantly lower than that of other materials such as steel bars and cement. This data suggests that some prefabricated components in Shanwei City may have production process defects or insufficient quality control. It is necessary to strengthen raw material testing, molding process control, and finished product出厂 (factory) inspection during the production process. At the same time, it is recommended that purchasers prioritize suppliers with complete qualifications and good reputations and require them to provide third-party testing reports to reduce engineering quality risks.

In summary, the prefabrication industry of concrete houses in Shanwei City has formed a "production-supply-application" chain, but quality stability still needs to be improved. When selecting prefabricated components, construction units should comprehensively consider supplier qualifications, product performance, and spot-check pass rates to ensure engineering safety and durability.