Energy-saving type temperature-controlled automatic water-compensating and cyclic hot-water method for maintaining concrete

Abstract

The invention relates to an energy-saving concrete maintenance method by temperature-controlled automatic water supply and hot water circulation, which comprises the following steps: adopting a combined maintenance method of internal radiation and external storage, namely, arranging a circulated cooling water pipe in a bearing platform, and cooling circulated flowing water during concrete construction and maintenance to accelerate radiation of heat inside the large-sized concrete of the bearing platform; after the concrete is poured and then initially set, covering a layer of film and two layers of gunny bags to carry out heat and moisture preservation and maintenance; during the heat and moisture preservation and the maintenance of the bearing platform, according to the temperature of a site environment, monitoring temperature and temperature difference of inlet water and outlet water of the cooling water pipe by an automatic temperature measuring control system, automatically reclaiming hot water in the cooling water pipe, recharging a water pool by part of the hot water for cyclic utilization, and controlling the difference value of the inlet water temperature of the cooling water pipe and the highest temperature of the concrete to be lower than 25 DEG C; and recharging the surface of the bearing platform by the other part of the hot water for heat preservation and maintenance. The method adopts the combined maintenance method of the internal radiation and the external storage, fully meets civilized construction requirements of environmental protection, energy conservation, and circulation, and can ensure the maintenance quality of the bearing platform of the large-sized concrete.

Description

technical field [0001] The invention relates to a construction and maintenance method for building concrete, in particular to a concrete maintenance method using temperature-controlled automatic water replenishment and circulating hot water. Background technique [0002] Concrete is a hydraulic material. Concrete needs to undergo hydration during the setting and hardening process. If water is not added, hydration cannot continue. During the growth period of concrete strength, in order to avoid water loss caused by surface evaporation and other reasons, the hydration of concrete can be fully carried out, and the technical indicators such as strength and durability of concrete can be guaranteed. At the same time, in order to prevent cracks due to drying, it is necessary to It is maintained. [0003] There are three conventional maintenance methods: 1. Sprinkle water directly on the concrete cap or column surface after removing the formwork; 2. Sprinkle water on the concrete c...

AI Technical Summary

Problems solved by technology

[0004] However, the above three methods are still unable to satisfy the internal heat dissipation of the mass concrete cap, which directly affects the maintenance quality of the mass concrete cap.