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Phase-change energy-storage three-dimensional fabric concrete canvas and preparation method thereof

A technology of concrete canvas and three-dimensional fabric, which is applied in the directions of buildings, tents/canopies, building types, etc., can solve the problems of lack of thermal insulation, low safety performance, inability to be safe and effective protection, etc., and achieves improved thermal insulation performance, good pouring , moderate price effect

Inactive Publication Date: 2018-09-04
ARMY ENG UNIV OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When emergencies such as natural disasters or wars occur, human beings need to rely on temporary tents as shelters. However, most of the existing temporary tents are made of canvas, which are not heat-resistant and have low safety performance. They cannot provide safe and effective protection like concrete buildings.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Component A of the phase-change energy storage concrete canvas is a glass fiber warp-knitted three-dimensional spacer fabric with a thickness of 30mm. In component B, 100 parts of cement grout is used as the basis, 49 parts of cement, 49 parts of quartz sand, and PX 25 phase Change material 2 parts. Add cement, sand, and PX25 phase change material into the cement mortar mixer, stir at low speed for 60 seconds, then stir at high speed for 60 seconds, and pour the formed cement grout into the three-dimensional spacer fabric.

[0021] The product of the present invention has a setting time of less than 1.0 hour, its 7-day compressive strength can reach 30.9MPa, its flexural strength can reach 15.1MPa, and its apparent density is 1.84g / cm 3 , thermal conductivity 0.38W*m -1 *k -1 .

Embodiment 2

[0023] Component A of the phase-change energy storage concrete canvas is a glass fiber warp-knitted three-dimensional spacer fabric with a thickness of 30mm. In component B, 100 parts of cement grout is used as the basis, 47.5 parts of cement, 47.5 parts of quartz sand, and PX 25 phase Change material 5 parts. Add cement, sand, and PX 25 phase change material to the cement mortar mixer, mix at low speed for 60 seconds, and then stir at high speed for 60 seconds, and pour the formed cement grout into the three-dimensional spacer fabric.

[0024] The product of the present invention has a setting time of less than 1.1 hours, its 7-day compressive strength can reach 27.7MPa, its flexural strength can reach 13.7MPa, and its apparent density is 1.68g / cm 3 , thermal conductivity 0.22W*m -1 *k -1 .

Embodiment 3

[0026] Component A of the phase-change energy storage concrete canvas is a glass fiber warp-knitted three-dimensional spacer fabric with a thickness of 30mm. In component B, 100 parts of cement grout is used as a reference, 46.5 parts of cement, 46.5 parts of quartz sand, and PX 25 phase Change material 7 parts. Add cement, sand, and PX 25 phase change material to the cement mortar mixer, mix at low speed for 60 seconds, and then stir at high speed for 60 seconds, and pour the formed cement grout into the three-dimensional spacer fabric.

[0027] The product of the present invention has a setting time of less than 1.2 hours, its 7-day compressive strength can reach 25.3MPa, its flexural strength can reach 11.7MPa, and its apparent density is 1.54g / cm 3 , thermal conductivity 0.15W*m -1 *k -1 .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses phase-change energy-storage three-dimensional fabric concrete canvas which has properties of heat preservation, rapid curing and hardening, flame retardancy, water resistance,wind resistance and the like, and is capable of meeting requirements that a temporary tent is rapidly constructed as a refuge. The phase-change energy-storage three-dimensional fabric concrete canvasdisclosed by the invention is composed of a three-dimensional partitioned fabric and a cement grouting sizing agent, wherein the three-dimensional partitioned fabric is a glass fiber knitted three-dimensional partitioned fabric of which the thickness is 20-30mm; the cement grouting sizing agent is composed of rapidly hardened cement, quartz sand and a phase-change material; by 100 parts of the cement grouting sizing agent, the amount of the rapidly hardened cement in the cement grouting sizing agent is 35-45 parts, the amount of the quartz sand is 45-60 parts, and the amount of the phase-change material is 2-10 parts; the rapidly hardened cement, the quartz sand and the phase-change material can be uniformly mixed and used later when the canvas is used.

Description

technical field [0001] The invention relates to a thermal insulation concrete canvas and a preparation method thereof, in particular to a phase change energy storage three-dimensional fabric concrete canvas and a preparation method thereof. Background technique [0002] When emergencies such as natural disasters or wars occur, human beings need to rely on temporary tents as shelters. However, most of the existing temporary tents are made of canvas, which are not heat-resistant and have low safety performance. They cannot provide safe and effective protection like concrete buildings. . The design idea of ​​concrete canvas was first proposed by two British students, Brewin and Crawford, in 2004. When they served in the British army, they found that in disaster areas or war zones, aid agencies and the army urgently needed a way to quickly build temporary housing. They designed a temporary shelter tent, which is to fill cement powder into a three-dimensional fabric, spread it o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06E04H15/54
CPCC04B28/06C04B2201/20C04B2201/32C04B2201/50E04H15/54C04B14/06C04B2103/0071C04B14/42
Inventor 戴银所邬建华朱乃姝李锐王风霞李红英孔新立
Owner ARMY ENG UNIV OF PLA
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