Prefabricated House Pouring
The core of prefabricated house pouring is the combination of factory-prefabricated standardized components and efficient on-site assembly, rather than relying solely on on-site pouring. The process can be divided into three key stages: foundation pouring, prefabricated component production, and on-site assembly and gap treatment. Details are as follows:
1. Foundation Pouring: A Key Step for a Stable Foundation Foundation pouring is the first step in the construction of a prefabricated house. First, the foundation needs to be leveled. Then, a white plastic sheet is laid to prevent excessive moisture loss after concrete pouring, thereby promoting the hydration reaction of cement and enhancing the strength of the concrete (in rural South Korean cases, steel bars are not used, and strength enhancement relies on the plastic sheet). Next, a concrete pump truck is used to evenly pour concrete into the foundation area, forming a stable foundation layer. This step requires strict control over the concrete mix ratio and pouring thickness to ensure that the foundation's bearing capacity meets design requirements.
2. Prefabricated Component Production: The Core Advantage of Industrial Manufacturing Prefabricated components (such as floor slabs and wall panels) are produced through standardized processes in factories. First, wooden forms are nailed together to create component molds. Then, steel reinforcement skeletons are placed inside the molds to enhance structural strength. Finally, cement is poured and vibrated to ensure compaction. Components come in two types: solid and hollow. Solid components are suitable for areas with high load-bearing requirements, while hollow components achieve lightweighting by reducing the amount of concrete in non-load-bearing parts, thereby lowering material costs. The controlled factory production environment ensures dimensional accuracy and quality stability of components, which is crucial for shortening construction periods and improving energy efficiency and environmental performance in prefabricated houses.
3. On-site Assembly and Gap Treatment: Ensuring Precise Jointing After being transported to the site, prefabricated components are assembled using methods such as mortise-and-tenon joints, nut fixation, or filling gaps with expanding foam. For example, gaps between beams and foundation piles are often filled with expanding foam to secure their positions, while nut-fixed areas are sealed with cement to prevent corrosion of metal parts. Some prefabricated technologies (such as CMC composite modules) employ a steel-concrete integrated pouring process, enhancing seismic performance through the协同工作 (synergistic operation) of steel frames and concrete. Compared to traditional cast-in-place concrete buildings, prefabricated assembled buildings can shorten construction periods by over 30% and reduce on-site wet operations, making them more in line with green building concepts.
The pouring mode of prefabricated houses balances quality, efficiency, and environmental needs through industrial production. Its core lies in the precise manufacturing of standardized components and the efficient collaboration of on-site assembly, providing a sustainable solution for modern construction.
