Vibrating method for producing concrete building block by using pipe pile wastewater slurry

Abstract

The invention relates to a vibro method for producing a concrete prefabricated-part by utilizing tubular pile waste water slurry. The method is characterized in that after the concrete mix is launched into a prefabricated-part mould, concrete is processed by a vibrating spear through concentrated vibro; the distance between vibro points is 0.8 to 1.2 times of vibrating spear working radius. The vibro method has the advantages that the bubbles in the concrete prefabricated-part, particularly in the heterotype concrete prefabricated-part, can be completely eliminated; the compactness of the concrete prefabricated-part is strengthened; and intensity and external appearance of the concrete prefabricated-part are enhanced.

Description

Technical field: [0001] The invention relates to a production process of concrete prefabricated components, in particular to a vibrating method for producing concrete prefabricated components by utilizing pipe pile waste slurry. Background technique: [0002] Pipe pile waste slurry is the waste liquid produced during the centrifugal forming process of pipe piles. According to statistics, 1m3 pipe pile concrete produces about 0.05m 3 of waste pulp. Its main components are cement, fine sand, water, a small amount of dust and admixtures. The content of cement in waste slurry reaches 60%. [0003] The past treatment method for the generated pipe pile surplus slurry (waste slurry) is to directly discharge it on the open space or pour it into a puddle or farmland, and then dig it out for landfill after it is naturally hardened. Because the waste slurry contains a large amount of alkaline substances, it can take up to a hundred years to be weathered after coagulation and harden...

AI Technical Summary

Problems solved by technology

However, the utilization rate of the residual slurry of pipe piles is not enough

[0006] There are also reports on engineering mud treatment in foreign patented technologies, but the equipment is complicated, and chemical additives and fillers are used, which may cause double pollution to the environment

There are also reports that the method of adding additives is used to prolong its solidification time, but there is no actual process and economic benefits of specific recycling, and it only stays at the level of improving the workability of waste pulp

[0007] In the process of using pipe pile waste slurry to produce concrete prefabricated components with special-shaped structures, it was found that conventional vibration methods were difficult to remove air bubbles in the concrete, resulting in a decrease in the strength of concrete prefabricated components

The surface quality does not meet the standard requirements

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