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Glass fiber reinforced cement material prepared from tailing sand

A technology for strengthening cement and glass fiber, which is applied in the field of cement-based composite materials, high frost resistance, high-strength glass fiber reinforced cement materials and their preparation, and can solve the problem of occupying land, rivers or farmland, destroying the environment and vegetation, and the risk of debris flow and other problems, to achieve the effect of excellent frost resistance, high fluidity and simple preparation process

Active Publication Date: 2018-06-29
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

[0026] A glass fiber reinforced cement material prepared from tailings sand, the composition ratio is: rapid hardening sulfoaluminate cement, natural quartz sand, tailings sand, water, water reducing agent, water-soluble polymer solution, alkali-resistant glass The weight ratio of fibers is 38.50, 33.88, 8.47, 13.34, 0.52, 3.23, 2.06;

[0027] Among them, the water-reducing agent is polycarboxylic acid high-performance water-reducing agent; the water-soluble polymer solution is acrylate copolymer emulsion; the alkali-resistant glass fiber is alkali-resistant glass fiber roving, the fiber diameter is 20 μm, and the fiber length is 25 mm;

[0028] It is prepared by the following method:

[0029] (1) Crushing and processing natural quartz stone into particles with a particle size of less than 4mm for use; sieving and washing the solid waste after iron ore iron selection into particles with a particle size of less than 1mm and a mud content of less than 3% (according to Mass mete...

Embodiment 2

[0033] A glass fiber reinforced cement material prepared from tailings sand, the composition ratio is: rapid hardening sulfoaluminate cement, natural quartz sand, tailings sand, water, water reducing agent, water-soluble polymer solution, alkali-resistant glass The weight ratio of fibers is 38.58, 25.46, 16.98, 13.37, 0.52, 3.24, 1.82;

[0034] Among them, the water reducing agent is polycarboxylic acid high-performance water reducing agent; the water-soluble polymer solution is acrylate copolymer emulsion; the alkali-resistant glass fiber is alkali-resistant glass fiber roving, the fiber diameter is 34 μm, and the fiber length is 30 mm;

[0035] It is prepared by the following method:

[0036] (1) Crushing and processing the natural quartz stone into particles with a particle size of 5 mm for use; sieving and washing the solid waste after iron ore selection to obtain a particle size of less than 2 mm and a mud content of less than 3% (by mass) count) particles, for use;

[...

Embodiment 3

[0040]A glass fiber reinforced cement material prepared from tailings sand, the composition ratio is: rapid hardening sulfoaluminate cement, natural quartz sand, tailings sand, water, water reducing agent, water-soluble polymer solution, alkali-resistant glass The weight ratio of fibers is 38.50, 16.94, 25.41, 13.34, 0.52, 3.23, 2.02;

[0041] Among them, the water-reducing agent is polycarboxylate high-performance water-reducing agent; the water-soluble polymer solution is acrylate copolymer emulsion; the alkali-resistant glass fiber is alkali-resistant glass fiber roving, the fiber diameter is 40 μm, and the fiber length is 45 mm;

[0042] It is prepared by the following method:

[0043] (1) Crushing and processing the natural quartz stone into particles with a particle size of 3 mm for use; screening and washing the solid waste after the iron ore iron selection to make the particle size less than 3 mm and the mud content less than 3% (according to mass) count) particles, f...

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Abstract

The invention discloses a glass fiber reinforced cement material prepared from tailing sand, which is prepared from, by weight, 35-45 parts of cement, 10-35 parts of natural quartz sands, 5-30 parts of tailing sand, 10-20 parts of water, 0.2-2 parts of a water reducing agent, 2-5 parts of a water soluble high-molecular solution, and 2-4 parts of alkali-resistant glass fibers. The cement is quickly-hardening sulfate aluminum cement; the fibers are alkali-resistant glass fibers direct roving; the water reducing agent is a polycarboxylate high-effective water reducer; and the water soluble high-molecular solution is an acrylate copolymer emulsion. The glass fiber reinforced cement material is high in compression resistance, ultimate bending strength, proportional limit bending strength, impact resistance and anti-freeze performance.

Description

technical field [0001] The invention relates to a cement-based composite material, which is a glass fiber-reinforced cement material and its preparation method, in particular to a high-freeze-resistant, high-strength glass fiber-reinforced cement material prepared from tailings sand and its preparation method, which belongs to building materials technology field. Background technique [0002] 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. Its main components are cement, sand, water, alkali-resistant glass fiber, admixture, etc. The cement is sulfoaluminate cement and Portland cement; the sand is high-quality natural quartz sand; the glass fiber is alkali-resistant glass fiber. The main properties of glass fiber reinforced cement materials currently researched in my country are: bending ratio ultimate strength 7.0-8.0MPa, bending ultimate strength 15....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B14/42C04B111/20
CPCC04B28/065C04B2111/29C04B2201/50C04B14/06C04B18/12C04B14/42C04B2103/302C04B24/2641
Inventor 秦宪明张利俊王灵秀刘佳项斌峰邱洪华蔡素燕裴超刘新状
Owner 国检测试控股集团北京有限公司