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A glass fiber reinforced cement material prepared from solid waste mixture

A technology for strengthening cement and glass fiber, which is applied in the field of building materials, and can solve the problems of occupying land, rivers or farmland, a large amount of tailings sand, and destroying the environment and vegetation.

Active Publication Date: 2021-05-04
国检测试控股集团北京有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The amount of tailings sand is huge and piled up into mountains for a long time, which not only occupies land, river courses or farmland, but also damages the environment and vegetation, and even poses the risk of mudslides

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A glass fiber reinforced cement material prepared by using solid waste mixture, the composition ratio is: rapid hardening sulfoaluminate cement, natural quartz sand, waste concrete particles, tailings sand, waste brick particles, water, water reducer, The weight ratio of coagulation regulator, polymer solution, and alkali-resistant glass fiber is 41.38:29.79:1.78:5.32:0.35:12.97:0.39:0.12:3.14:4.76;

[0031] Among them, the water reducer is polycarboxylic acid high-performance water reducer; the coagulation regulator is potassium sodium tartrate; the polymer solution is water-based acrylate copolymer emulsion; the alkali-resistant glass fiber is alkali-resistant glass fiber roving, the fiber diameter 15μm, the fiber length is 16mm;

[0032] It is prepared by the following method:

[0033] (1) Crushing and processing natural quartz stone into particles with a particle size of less than 3mm for use; crushing and processing waste concrete produced by building demolition i...

Embodiment 2

[0037] A glass fiber reinforced cement material prepared by using solid waste mixture, the composition ratio is: rapid hardening sulfoaluminate cement, natural quartz sand, waste concrete particles, tailings sand, waste brick particles, water, water reducer, The weight ratio of coagulation regulator, polymer solution, and alkali-resistant glass fiber is 41.37:22.35:7.10:7.10:0.70:12.97:0.39:0.12:3.14:4.76;

[0038] Among them, the water reducer is polycarboxylic acid high-performance water reducer; the coagulation regulator is potassium sodium tartrate; the polymer solution is water-based acrylate copolymer emulsion; the alkali-resistant glass fiber is alkali-resistant glass fiber roving, the fiber diameter 20μm, the fiber length is 23mm;

[0039] It is prepared by the following method:

[0040] (1) Crushing and processing the natural quartz stone into particles with a particle size of less than 2 mm for use; crushing and processing the waste concrete produced by building dem...

Embodiment 3

[0044] A glass fiber reinforced cement material prepared by using solid waste mixture, the composition ratio is: rapid hardening sulfoaluminate cement, natural quartz sand, waste concrete particles, tailings sand, waste brick particles, water, water reducer, The weight ratio of coagulation regulator, polymer solution, and alkali-resistant glass fiber is 41.41:14.90:15.97:5.33:1.06:12.98:0.41:0.12:3.15:4.67;

[0045] Among them, the water reducer is polycarboxylic acid high-performance water reducer; the coagulation regulator is potassium sodium tartrate; the polymer solution is water-based acrylate copolymer emulsion; the alkali-resistant glass fiber is alkali-resistant glass fiber roving, the fiber diameter 36μm, the fiber length is 42mm;

[0046] It is prepared by the following method:

[0047] (1) Crushing and processing the natural quartz stone into particles with a particle size of less than 3mm for use; crushing and processing the waste concrete produced by building dem...

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Abstract

The invention discloses a glass fiber reinforced cement material prepared by using solid waste mixture, which is prepared from the following raw materials in parts by weight: 36-55 parts of cement, 10-35 parts of natural quartz sand, 1-20 parts of waste Concrete particles, 1-10 parts of tailings sand, 1-5 parts of waste brick particles, 10-20 parts of water, 0.1-2 parts of water reducer, 0.1-1 part of coagulation regulator, 1-5 parts of high Molecular polymer solution and 3-6 parts of alkali-resistant glass fiber. The cement is fast-hardening sulfoaluminate cement; the fiber is alkali-resistant glass fiber roving; the water reducing agent is polycarboxylate high-efficiency water reducing agent, and the polymer solution is water-based acrylate copolymer emulsion. The GRC material of the invention has the characteristics of early strength, high strength, high bending strength and high impact resistance. The invention also provides a method for preparing early-strength, high-strength, and high-impact-resistance GRC materials from the solid waste mixture of waste concrete particles, tailings sand and waste brick particles.

Description

technical field [0001] The invention relates to a cement-based composite material, more specifically to an early-strength, high-strength, high-impact GRC material prepared from a solid waste mixture of waste concrete particles, tailings sand and waste brick particles and a preparation method thereof, belonging to the field of building materials . Background technique [0002] GRC is the abbreviation of Glass fiber Reinforced Concrete in English, and it is customarily called "glass fiber reinforced cement" in China. Glass fiber reinforced cement is a kind of fiber cement composite material with alkali-resistant glass fiber as reinforcement material and cement mortar as matrix material. The glass fiber is alkali-resistant glass fiber, the commonly used cement is sulphoaluminate cement and Portland cement, and the sand is mostly high-quality natural quartz sand. In my country, the main properties of glass fiber reinforced cement materials are: the ultimate bending strength of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06
CPCC04B28/06C04B2111/00017C04B2201/50C04B14/06C04B18/16C04B18/12C04B24/2641C04B14/44C04B20/0076C04B24/06C04B2103/302
Inventor 秦宪明张利俊刘佳王灵秀邱洪华项斌峰蔡素燕郝庆军赵蔚慈
Owner 国检测试控股集团北京有限公司