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

A technology of large-volume concrete and protective devices, which is applied in coastline protection, construction material processing, water conservancy projects, etc., can solve the problems of affecting the effect of thermal insulation and moisturizing maintenance, difficult to cover thermal insulation and moisturizing materials, and difficult to accurately control temperature difference, etc., to achieve laying Convenient and fast, real-time adjustment and monitoring of concrete temperature, easy and stable installation and laying effects

Active Publication Date: 2019-10-22
CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 1 and figure 2 As shown, a large-volume concrete protective device with heat preservation and moisture retention includes a shaped frame 1 arranged on one side of the concrete 2, and the shaped frame 1 includes an outer frame 101 and first side plates on both sides of the outer frame 101 102 and a second side plate 103, the first side plate 102 is set close to the concrete 2; an active moisturizing layer 3, a first Water barrier coating 4, active insulation layer 5 and second water barrier coating 6;

[0045] The active moisture retention layer 3 is close to the first side panel 102 around, as image 3 As shown, the active moisturizing layer 3 is a water storage material 301 laid between the first side panels 102, and the shaping frame 1 is provided with a number of water injection holes or water seepage holes on the side close to the concrete 2;

[0046] The active insulation layer 5 is a rock wool board arranged in the shaping frame 1, such as Fig...

Embodiment 2

[0056] Such as image 3 and Figure 5 As shown, the active moisture retention layer 3 is a saturated moisture retention layer; the water storage material 301 is a high water absorbent resin; the water injection hole 303 is set on the first side plate 102 and the outer frame 101 .

[0057] Preferably, a water storage tank 302 is provided between the outer frame 101 and the first side plate 102 ; one end of the water storage tank 302 is connected to the water storage material 301 , and the other end is connected to the water injection hole 303 . The water storage tank 302 can store more water for use by the water storage material 301 , and after the water storage tank 302 is filled with water, the frequency of external water addition can be reduced and repeated labor can be reduced.

[0058] Continuously supply water to the water storage material 301 through the water injection hole 303 to ensure that it is in a saturated state, which is conducive to the diffusion and penetrati...

Embodiment 3

[0060] A method for laying a large-volume concrete protective device with thermal insulation and moisture retention, comprising the following steps:

[0061] S1: if Figure 7 As shown, according to the large-volume concrete design and construction drawings, the concrete 2 is poured, and a tie block 13 and a tie bar 14 are set in the concrete 2, and a section of the tie bar 14 leaks outward and is fixedly installed with a tie bar screw 15;

[0062] S2: Prepare and fabricate protective devices, as follows:

[0063] S201: Assemble the outer frame 101 and the first side plate 102 of the shaped frame 1, reserve a water injection hole on the shaped frame 1, and clean the inside and outside of the shaped frame 1;

[0064] S202: Set up an active moisturizing layer 3 with a thickness of 0.1-0.2mm; prepare a water storage material 301, lay the water storage material 301 in the shaped frame 1, and connect the surroundings with the first side plate 102 of the shaped frame 1 Connect and ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D15/00E02B7/02E04G21/24
CPCE02B7/02E02D15/00
Inventor 李家正李明霞颉志强苏海东林育强董芸周世华冯菁张亮李扬邝亚力
Owner CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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