Low porosity grouting technology for pouring concrete

Abstract

The invention discloses a low-voidity grouting process for concrete pouring, which belongs to the field of concrete pouring. The low-voidity grouting process for concrete pouring is provided with a micro-vibration air column in a formwork, and after grouting, it can squeeze and inflate marbles. In this way, the position of the inert gas inside is shifted, so that the microvibration gas column continuously expands and vibrates outwards, and the position of the microvibration rod continues to move, so that the nearby concrete slurry can be effectively loosened, thereby effectively reducing the internal porosity and significantly improving Concrete strength and quality. At the same time, the pre-solidified powder injected into the microseismic air column after grouting can effectively fill the gaps in the microseismic air column, thereby effectively avoiding its impact on the strength of the concrete prefabricated parts. On the other hand, the staff The water seepage of the concrete prefabricated part can be judged by opening the sealing mouth of the micro-shock gas column to detect the condition of the pre-solidified powder, so as to facilitate timely maintenance and improve safety.

Description

technical field [0001] The invention relates to the field of concrete pouring, more specifically, to a low-voidity grouting process for concrete pouring. Background technique [0002] Ordinary concrete refers to the artificial stone made of cement as the main cementitious material, mixed with water, sand, stones, chemical admixtures and mineral admixtures when necessary, mixed in an appropriate proportion, and uniformly stirred, compacted and cured. . Concrete is mainly divided into two stages and states: the plastic state before setting and hardening, that is, fresh concrete or concrete mixture; the hard state after hardening, that is, hardened concrete or concrete. The strength grade of concrete is divided by the standard value of cubic compressive strength. The strength grade of ordinary concrete in China is divided into 14 grades: C15, C20, C25, C30, C35, C40, C45, C50, C55, C60, C65, C70, C75 and C80 . [0003] Generalized concrete is an artificial stone made of ceme...

AI Technical Summary

Problems solved by technology

[0008] When concrete is poured, it usually needs to be vibrated to improve the compactness of concrete pouring. However, although there are fewer large voids inside the concrete block at the pouring place in this way, the concrete slurry after pouring will still be vibrated. There are some small gaps, which still have a certain influence on the strength of the formed concrete block

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