How to Prefabricate House Corners

The prefabrication of house corners can refer to the design concept of prefabricated molds for roof eaves corners, achieving efficient and high-quality forming through standardized molds, but the mold design needs to be adjusted according to the specific type of corner structure.

I. Core Design Principles of Prefabricated Molds for Roof Eaves Corners

The roof eaves corner is a typical structure at the intersection of the horizontal and vertical planes. Its prefabricated mold forms a specific shape through a combination of templates:

1. Template Combination Method: The mold consists of a rectangular vertical template, with equilateral right-angled triangular side templates fixed vertically on both sides, a horizontal template fixed at the top, and a hinged arc-shaped template at the bottom. After the arc-shaped template is connected to the hypotenuse of the side templates, an arc-shaped transition structure for the eaves corner is formed.
2. Functional Advantages: This design replaces on-site manual corner finishing with standardized molds, solving the problems of poor forming quality (such as uneven surfaces and large dimensional deviations) and time-consuming and labor-intensive work in traditional construction methods. The fixed structure of the mold ensures the accuracy and consistency of the corner shape, while the hinged design of the arc-shaped template facilitates demolding and improves production efficiency.

II. Prefabrication Methods for Other Corner Structures of Houses

If it is necessary to prefabricate other types of corner structures of houses (such as right-angled wall corners and irregular corners), the mold design needs to be adjusted according to the specific shape:

1. Prefabrication of Right-Angled Wall Corners: A double-sided template combination can be used, with the side templates fixed vertically on both sides and concrete or prefabricated blocks filled in the middle. The template material can be steel or wood, and the surface needs to be smooth to reduce demolding resistance.
2. Prefabrication of Irregular Corners: The template shape needs to be customized. For example, 3D modeling technology can be used to generate the corner curve, and then the corresponding template can be processed. Positioning pins or bolts need to be set at the joints of the templates to ensure a tight connection and prevent grout leakage.
3. Key Considerations: Regardless of the type of corner structure, the mold design needs to consider the convenience of demolding. For example, applying a release agent to the inner wall of the mold or using segmented templates (such as separating the side templates from the bottom template) to reduce the difficulty of demolding.

III. Construction Process for Prefabricated Corner Structures

1. Mold Installation: Fix the templates according to the design drawings, check the perpendicularity and flatness, and ensure that the corner dimensions meet the requirements.
2. Concrete Pouring: Use low-flow concrete and vibrate it in layers to ensure compactness and avoid honeycombing and pitting. For irregular corners, pour from the bottom to the top to prevent air bubble accumulation.
3. Curing and Demolding: After pouring, cover it for moisture-retaining curing. Demold when the concrete strength reaches more than 70% of the design value. When demolding, gently tap the templates to avoid damaging the corner edges.

Through standardized mold design and refined construction processes, the prefabrication of house corners can achieve efficient and high-quality industrial production, providing strong support for building industrialization.