Concrete, preparation method of concrete, precast pile and preparation method of precast pile

Abstract

The invention discloses concrete, a preparation method of the concrete, a precast pile and a preparation method of the precast pile, the concrete comprises cement, a first aggregate, a second aggregate, a water reducing agent and water, the particle size of the first aggregate is greater than that of the second aggregate, and the concrete also comprises a composite mineral additive and cellulose ether. According to the concrete, by improving the components, the viscosity and the water-retaining property of cement paste can be improved, and when the concrete is used for preparing a precast pile, the bonding capacity of the cement paste is improved in the centrifugal process stage, so that the amount of residual paste generated in the precast pile preparation process is reduced, and the material cost is saved.

Description

Technical field [0001] The invention relates to the field of construction technology, in particular to a method for preparing concrete, concrete preparation, precast piles and precast piles. Background technique [0002] At present, in the process of preparing pre-stressed centrifugal precast piles with concrete, it must be shaped by centrifugal process, and a large amount of residual slurry will be generated during centrifugation. The residual slurry dumped in this production process is difficult to reuse, which not only causes pollution to the environment , And also waste materials. [0003] At the same time, in the pressurized steam curing process for preparing precast piles, the required steam pressure is relatively high, such as 0.8-1.0 MPa, a large amount of saturated steam is required, and the cost of steam is also high. [0004] In view of this, how to reduce the residual slurry produced during the preparation of precast piles to save materials is a technical problem that ne...

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of preparing prestressed centrifugal prefabricated piles with concrete, it must be formed by centrifugal process, and a large amount of residual slurry will be generated during centrifugation. The residual slurry dumped in this production process is difficult to reuse, which not only pollutes the environment , also waste material

[0003] At the same time, in the pressurized steam curing process stage of preparing prefabricated piles, the required steam pressure is relatively high, such as 0.8-1.0MPa, a large amount of saturated steam is required, and the cost of steam is also high

Images