Winter maintenance method for concrete component

Abstract

The invention discloses a winter maintenance method for a concrete component. The method comprises a static stop stage, a heating stage, a constant temperature stage and a cooling stage which are precisely controlled through programs. The different stages are designed for requirements for concrete strength forming. Concrete early-stage strength is rapidly formed in the static stop stage so as to resist deformation in the concrete heating process. The concrete structure strength is rapidly formed in the heating stage. The hydration extent of cement in concrete is improved in the constant-temperature stage, and the strength is further improved. Concrete meets early-stage from removal and release requirements. By means of the maintenance method, the early-stage strength of concrete is effectively improved, the concrete component is prevented from being cracked in the maintenance process, the template circulation speed is improved, the production efficiency of the concrete component is improved, and therefore economic benefits are improved.

Description

technical field [0001] The invention belongs to the field of concrete maintenance, and in particular relates to a winter maintenance method for concrete components. Background technique [0002] In the construction of infrastructure projects such as railways and highways, a large number of precast concrete components are required, and the quality of concrete components determines the construction quality and service life of railways, highways and other facilities. The quality of concrete components depends on two factors, the first is the quality and ratio of raw materials; the second is the reasonableness of the curing process. Under the condition that the quality and ratio of raw materials are determined, the influence of curing process on the quality of concrete components is particularly important. [0003] At present, steam curing is an important way to maintain concrete components. Using this method can speed up the turnover speed of the formwork and improve productio...

AI Technical Summary

Problems solved by technology

This maintenance method is specially regulated for the temperature in the static stop stage, which solves the problem of low temperature in the natural static environment of winter maintenance; this maintenance method also optimizes the temperature, time, heating and cooling rate and humidity of the heating and cooling stages, The precise regulation solves the problem of fuzzy control in the maintenance process and ensures the quality of concrete components; this curing method also makes clear regulations on the temperature in the constant temperature stage, which stipulates that the constant temperature control temperature should be operated under lower conditions to ensure Improve the quality of concrete components and prevent cracks