Production method of concrete pipe pile

Abstract

The invention relates to a production method of a concrete pipe pile. The production method comprises the following steps: (1) a fine aggregate, a coarse aggregate, cement, mineral powder, sodium silicate, water and a water reducing agent are added into a reaction kettle in sequence, and are evenly mixed to obtain a concrete mixture; (2) the prestress tension is performed for the concrete mixture after the material distribution and the mold assembly; (3) the concrete mixture is centrifuged after the prestress tension; and (4) the centrifuged concrete mixture is put in a steaming pool for steaming. The sodium silicate is added by multiple experiments through the contrastive analysis, and fits the compounded high-performance water reducing agent, and traditional pipe pile centrifuging and steaming steps are adjusted, so that no residual slurry is generated in centrifuging, the once demolding strength reaches C80, the procedures of residual slurry pouring and steaming are omitted, and the environmental pollution of enterprises and the energy consumption are greatly reduced.

Description

technical field [0001] The invention belongs to the field of concrete pipe piles, in particular to a production method of no-remaining slurry-free autoclaved prestressed concrete pipe piles. Background technique [0002] The existing production process of concrete pipe piles is divided into reinforcement cutting, cage weaving, assembly, concrete pouring, tensioning, centrifugation, steam curing and autoclaving. Two links have always been a headache for pipe pile enterprises: one is the large amount of residual pulp produced by centrifugation, which not only contains a lot of water, but also contains a lot of cement and admixture components, which directly affects the quality of the pipe pile after forming. The recovery and reuse of residual stock is less cost-effective, and a large amount of energy consumption will be generated in the process of recovery and reuse; the second is a large amount of energy consumption generated by autoclaving, and a large pressure vessel must b...

AI Technical Summary

Problems solved by technology

Two links have always been a headache for pipe pile enterprises: one is the large amount of residual slurry produced by centrifugation, which not only contains a large amount of water, but also contains a lot of cement and admixture components, which directly affects the quality of the pipe pile after forming. The recovery and reuse of residual pulp is less cost-effective, and a large amount of energy consumption will be generated in the process of recovery and reuse; the second is a large amount of energy consumption generated by autoclaving, and a large pressure vessel must be used, there is a serious problem production safety hazard

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