Tool for molding rough surface of precast concrete unit

Abstract

The invention relates to a tool for molding the rough surface of a precast concrete unit. The tool comprises multiple grooves or multiple bumps which are molded and processed on a molding template andaccord with standards of the rough surface of a precast unit in China. The tool provided by the invention has the advantages that mechanical equipment and washing stations are greatly eliminated, nodust pollution or mud pollution is produced, cost is low, efficiency is high, and the rough surface of the molded precast unit accords with the standards in China, so that product quality is good.

Description

Technical field [0001] The invention belongs to the technical field of construction engineering, and specifically relates to a tool for forming rough surfaces of precast concrete members. Background technique [0002] According to national standards, the bonding surface of precast components and post-poured concrete, grouting and setting materials should be provided with rough surfaces and keyways, and meet the following requirements: [0003] 1. A rough surface should be provided on the joint surface between the precast slab and the post-poured concrete laminated layer. [0004] 2. The joint surface between the precast beam and the post-poured concrete superimposed layer should be provided with a rough surface, and the end face of the precast beam should be provided with a keyway and a rough surface should be provided. [0005] 3. The joint surface of the top and bottom of the precast shear wall and the post-poured concrete should be provided with a rough surface; the joint surface o...

AI Technical Summary

Problems solved by technology

The chiseling process is to use a chisel machine to process a rough surface on the surface of the prefabricated component. During the construction process, dust is flying, polluting the environment, time-consuming, labor-intensive, low in efficiency, and high in cost.

The sandblasting process uses a sandblasting machine to spray the pouring slurry on the surface of the prefabricated components, but the treatment depth is shallow, and it is only suitable for plastering the surface, pasting waterproof layers or decorative materials, not suitable for the connection of structural parts, and dust pollution during the construction process larger

The napping process adopts manual napping, which is only suitable for making the roughness of the edge retaining surface without mold, the upper surface of the floor, and the upper surface of the beam.

The exposed aggregate agent + water washing process uses the exposed aggregate agent to smear the surface of the prefabricated component, and then wash it with water. The process is complicated, and a special washing station needs to be set up. The waste water needs to be treated before it can be discharged. The cement slurry pollutes the factory environment greatly, which is not conducive to Industrial production

Images