Rural House Prefabricated Slab Construction

Rural house prefabricated slab construction involves aspects such as construction applications, foundation moisture-proof treatment, laying points, and advantages and disadvantages. Here is a detailed introduction:

Construction Applications

When adding a second floor to an old rural house, if the original floor slab is a prefabricated slab, a portion of it can be cut and used to construct a ring beam. This approach utilizes the existing prefabricated slab material, enhancing the overall integrity and stability of the house structure to a certain extent, and providing better support for the addition of the second floor.

Foundation Moisture-Proof Treatment

In the foundation moisture-proof treatment of self-built rural houses, a common practice is to create a prefabricated slab elevated layer on the ground ring beam. Specifically, after the ground beam is poured, the height of the backfill soil is controlled to be 30 - 50 centimeters above the ground and compacted. This method forms an air gap between the ground and the main body of the house, effectively preventing underground moisture from rising, protecting the interior of the house from moisture damage, and extending the service life of the house.

Laying Points

When laying prefabricated slabs in the elevated layer, the first step is to remove the film on the ground ring beam to prevent interference with subsequent construction. Then, use a level to measure the positions of various points and adjust them to ensure levelness, ensuring the flatness of the prefabricated slab laying and avoiding tilting or unevenness that could affect the structural safety and functionality of the house. After that, proceed with the lifting and installation of the prefabricated slabs. The price of prefabricated slabs is calculated per meter, with different prices for slabs under 4 meters and those over 4 meters. When purchasing, choices should be made according to actual needs and budget.

Advantages and Disadvantages

There are certain drawbacks to using prefabricated slabs for rural house construction. In terms of waterproofing, there is a relatively high probability of leakage, and many users with prefabricated slab roofs often suffer from leakage issues. Regarding seismic performance, they should not be used in earthquake-prone areas due to their low seismic resistance coefficient, which makes them prone to severe damage such as cracking and collapse under earthquake action. Their thermal insulation is also poor, with unsatisfactory heat insulation in summer and heat preservation in winter, affecting indoor living comfort. These drawbacks have led many subsequent house builders to possibly abandon the use of prefabricated slabs.