A concrete temperature control formwork and its application method

Abstract

The invention discloses a concrete temperature-control mold plate and a use method thereof. The concrete temperature-control mold plate comprises a steel plate structure body, a heat-preservation material plate and a reinforced plate, wherein the steel plate structure body and the heat-preservation material plate are matched together to form a hollow structure; the heat-preservation material plate is covered by the reinforced plate; a vent interface is formed in a double-layer structure of the reinforcing plate and the heat-preservation material plate; vent interfaces can be connected through an air connecting tube so as to communicate hollow structures of adjacent temperature-control mold plates and air flow of set temperature can be conveyed into the hollow structures through air conveying tubes; air flow is subjected to heat exchange with concrete through a steel plate surface, and thus temperature regulation and control of the temperature-control mold plate to concrete can be achieved. The concrete temperature-control mold plate mainly aims to solve the problem of temperature cracks of concrete of a wall structure, particularly a long (lateral) wall structure, and the problems that temperature cracks can be easily generated as the molding temperature and the hydration temperature of concrete are increased in a high temperature environment in summer, and a structure can be damaged as concrete at an early cast stage can be frozen and cracks can be generated as the surface and inner temperature difference is too large in a severe cold environment in winter.

Description

technical field [0001] The invention relates to the technical field of concrete construction, in particular to a concrete temperature control formwork and a method for using the same. Background technique [0002] Cracks in wall structure concrete, especially long wall structure and underground side wall structure concrete, are more common, and cracks are especially serious in summer high temperature seasons. The cracks mainly appear within a few days after formwork removal. Take wall structure concrete as an example. In actual engineering, when the mold entry temperature reaches above 35°C and the hydration temperature rises above 30°C, it is common for temperature cracks to appear on the concrete wall at intervals of 0.5m to 3.0m. The current technical means to solve this kind of cracks is mainly to add calcium expansion agent and hydration heat control materials. Although the degree of wall cracking can be greatly alleviated, it still cannot be completely solved. Researc...

AI Technical Summary

Problems solved by technology

[0005] For wall structure concrete, especially long (side) wall structure concrete, it solves the problem of high mold temperature and hydration temperature rise of concrete in high temperature environment in summer and easily produces temperature cracks, and solves the problem of concrete pouring in the early stage of concrete pouring in severe cold environment in winter It is easy to suffer from structural damage due to freezing and cracking due to excessive temperature difference between the inside and the outside. The invention provides a concrete temperature control formwork and its use method. Specifically, it is realized as follows:

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