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A glass fiber reinforced cement material prepared from tailings sand

A technology for reinforcing cement and glass fiber, used in cement-based composite materials, high-strength glass fiber reinforced cement materials and their preparation, and high frost resistance fields. vegetation and other problems, to achieve the effect of simple preparation process, excellent performance and excellent frost resistance

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

[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 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 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; sieving and washing the solid waste after iron ore selection to make the particle size less than 3 mm and the mud content less than 3% (by mass) count) particles, for use;

[0044]...

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Abstract

The invention discloses a glass fiber reinforced cement material prepared from tailings sand, which is prepared from the following raw materials in parts by weight: 35-45 parts of cement, 10-35 parts of natural quartz sand, 5-30 parts of Tailing sand, 10-20 parts of water, 0.2-2 parts of water reducing agent, 2-5 parts of water-soluble polymer solution and 2-4 parts of alkali-resistant glass fiber. The cement is rapid-hardening sulfoaluminate cement; the fiber is alkali-resistant glass fiber roving; the water-reducing agent is a polycarboxylic acid-based superplasticizer; It is an acrylate copolymer emulsion. The glass fiber reinforced cement material of the invention has the characteristics of high compressive strength, high bending ultimate strength, bending ratio ultimate strength, high impact strength and high frost resistance.

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 Patents(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