Cement Prefabricated House in Jinchang
The technology related to cement prefabricated houses in Jinchang has seen some development, but it has both advantages and disadvantages, requiring comprehensive consideration in application.
Technological Achievements
Gansu Jinchang Nickel City Cement Products Co., Ltd. has obtained a patent for 'a roof structure for cement prefabricated movable houses'. This roof structure consists of prefabricated triangular beams, support structures, and roof structures. The support structure includes connecting column one, connecting column two, and limiting columns, which are set on the prefabricated triangular beams, and the roof structure is then set on the support structure. This structure effectively solves the problems of slow construction progress and high costs associated with on-site pouring of house roofs, improving the cost-effectiveness of house construction.
Application of Lightweight Concrete
The climate in Jinchang is dry with significant temperature differences, making traditional building materials prone to cracking. The application of lightweight concrete in construction in this region represents an innovative solution. Lightweight concrete prefabricated components, such as partition walls and insulation blocks, are cured in factories with controllable dimensional errors. During on-site installation, special adhesive mortar is used, reducing the amount of wet work and significantly shortening the construction period. Taking the exterior wall construction of a public building in Jinchang as an example, the use of lightweight concrete blocks shortened the construction period by about one-third compared to ordinary clay bricks.
Disadvantages of Cement Prefabricated Houses
Cement prefabricated houses have some inherent drawbacks. Non-earthquake-resistant: In the event of natural disasters such as earthquakes, their structural stability is relatively poor, and they may not effectively withstand the destructive forces of earthquakes. Poor sound insulation and thermal insulation: They have difficulty effectively blocking the transmission of external sounds, cannot effectively isolate heat in summer, and cannot maintain indoor temperature well in winter, affecting living comfort. Leakage at joints: Since they are assembled from prefabricated components, leakage problems are prone to occur at the joints, causing inconvenience in house use. Although theoretically, cement prefabricated houses can last for 70 years, their actual service life depends on construction quality. If the construction quality is poor, their service life will be significantly reduced.
