Yuhua Cement Prefabricated House
No direct detailed information on 'Yuhua Cement Prefabricated House' has been found, but a general introduction based on the common characteristics of cement prefabricated houses can be provided.
I. Construction Efficiency and Cost Cement prefabricated houses adopt a modular design, which are prefabricated in factories and then transported to the site for hoisting and assembly, resulting in relatively fast construction speeds. For example, at a construction site in Qixian, Henan, the main structure of a three-story villa covering an area of 200 square meters was completed in just 4 hours. The 'Three Cows Cement House' company states that a cement prefabricated house of about 200 square meters can be erected in as little as 4 hours, with a charge of 300 yuan per square meter. This construction method can significantly shorten the construction period and reduce labor costs, but transportation and hoisting costs may be relatively high, requiring comprehensive evaluation based on the project scale.
II. Structural Performance and Safety Cement prefabricated houses typically adopt a full-frame shear wall structure with a compressive strength of up to 30 MPa. The modules are connected by a combination of mortise-and-tenon joints and bolts, providing strong overall stability. In a simulated Wenchuan earthquake test, the overall displacement was only 3 cm under a 9-degree intensity earthquake, indicating a certain degree of earthquake resistance. However, experts point out that the earthquake resistance of modular prefabricated structures is relatively simpler compared to traditional structures, and improper handling of connections may affect stability. It is recommended for use in non-seismic zones and with a limited number of floors (e.g., no more than 3 floors).
III. Usage Disadvantages and Precautions
- Poor thermal and sound insulation: Cement materials have strong thermal conductivity, requiring additional insulation layers or soundproofing materials.
- Cracking and water leakage after long-term exposure: Regular maintenance is required, or waterproof coatings and sealants can be used for treatment.
- Limited design flexibility: Modular design may restrict the internal space layout, requiring advance planning of needs.
- Material environmental friendliness: Some cement prefabricated houses may release harmful substances (such as formaldehyde), so it is necessary to choose materials that meet environmental standards.
- Legal compliance: It is necessary to comply with local building codes to avoid legal risks arising from illegal construction.
IV. Policy Relevance Explanation In the demolition policy of Yuhua District, Shijiazhuang City, the compensation standard for prefabricated brick-concrete structure houses is 2,800 yuan per square meter, but it is not clear whether this applies to cement prefabricated houses. To confirm the compensation standard, it is necessary to refer to local policy documents or consult relevant departments, focusing on verifying the house structure type, construction time, and property ownership certificate and other materials.
