Heat-retaining and moisture-retaining mass concrete protective device and laying method

Abstract

The invention discloses a heat-retaining and moisture-retaining mass concrete protective device and a laying method. The heat-retaining and moisture-retaining mass concrete protective device comprisesa molding frame arranged on one side of concrete. The molding frame comprises an outer frame, a first side plate and a second side plate, wherein the first side plate and the second side plate are ontwo sides of the outer frame. The first side plate is arranged in a manner that the first side plate is attached to the concrete tightly. An active moisture-retaining layer, a first waterproof coating, an active heat-retaining layer and a second waterproof coating are arranged in the direction from the first side plate to the second side plate in sequence. The active moisture-retaining layer is formed by a water storage material laid between the first side plate. The active heat-retaining layer is formed by a heat-retaining filler arranged in the molding frame. Electric heating wire, a temperature sensor, a measurement and control module and a power supply module which are connected are arranged in the heat-retaining filler. According to the mass concrete protective device, the structureis simple, laying is convenient and efficient, heat retaining and moisture retaining are timely, and the heat-retaining and moisture-retaining effects are good; generation of cracks and fissures in the concrete can be effectively reduced; and meanwhile, the internal temperature can be recorded, monitored, adjusted and controlled in real time.

Description

technical field [0001] The invention relates to the technical field of large-volume concrete protection devices, in particular to a large-volume concrete protection device with heat preservation and moisture retention and a laying method. Background technique [0002] Concrete is a material that is easy to crack, especially for mass concrete, due to the large volume of concrete, the accumulated heat of hydration is large, and when the heat dissipation inside and outside the concrete is uneven and it is subject to internal and external constraints, a large temperature will be generated inside the concrete stress, leading to cracks. [0003] Therefore, anti-cracking is an important subject in the construction of concrete dams. Since the vast majority of concrete cracks are related to temperature stress, temperature control is the main means of crack prevention. After long-term research results and practical experience and lessons, academician Zhu Bofang and others have summe...

AI Technical Summary

Problems solved by technology

In this way, the "early" opportunity will be missed, which will affect the effect of heat preservation, moisturizing and maintenance; and the control of temperature difference and the control of cooling speed are intermittent, and lack of real-time monitoring, it is difficult to accurately control the temperature difference

[0005] In addition, it is difficult to cover the insulation and moisture retention materials on the outside of the formwork, for example, outside the side formwork of concrete beams, columns, walls, or under the bottom formwork of concrete slabs, due to the obstruction of formwork and supports, it is difficult or effective to cover insulation Moisturizing materials seriously affect the effect of heat preservation, moisturizing and maintenance

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