Cement-based composite material with high strength, toughness, impact resistance and abrasion resistance and casting method thereof

A composite material, high impact resistance technology, applied in the field of building materials, to achieve the effect of simple preparation method and low price

Active Publication Date: 2014-07-02
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is of great significance to develop new building materials with high strength, high toughness, high impact resistance and high wear resistance. At present, there is no cement-based composite material with these properties on the market.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A cement-based composite material with high strength, high toughness, high impact resistance and high wear resistance, which is composed of the following materials in terms of mass percentage:

[0041] Cement (P.O 52.5) ​​22.5%

[0042] Silica fume 7%

[0043] Fly Ash 10%

[0044] Corundum 51.08%

[0045] Polycarboxylate superplasticizer 0.72%

[0046] Steel fiber 1.2%

[0047] Water 7.5%.

[0048] The pouring method of above-mentioned cement-based composite material, comprises the steps:

[0049] (1) Weigh cement, silica fume, fly ash, and corundum, and dry mix them for 1 minute to form a uniform dry material mixture;

[0050] (2) Then weigh the polycarboxylate superplasticizer and water, and mix them evenly to form a water agent;

[0051] (3) Add the water agent to the dry material mixture, stir for 3 minutes, then disperse the steel fibers evenly, and stir for 1 minute to form a cement-based composite material slurry with good fluidity;

[0052] (4) Pour the ce...

Embodiment 2

[0056] A cement-based composite material with high strength, high toughness, high impact resistance and high wear resistance, which is composed of the following materials in terms of mass percentage:

[0057] Cement (P.O 52.5) ​​25.5%

[0058] Fly Ash 8%

[0059] Ground slag 7.5%

[0060] Corundum 47.25%

[0061] Polycarboxylate superplasticizer 0.75%

[0062] Steel fiber 2.0%

[0063] Water 9%.

[0064] The pouring method of above-mentioned cement-based composite material, comprises the steps:

[0065] (1) Weigh cement, finely ground slag, fly ash, and corundum, and dry mix them for 1 minute to form a uniform dry material mixture;

[0066] (2) Then weigh the polycarboxylate superplasticizer and water, and mix them evenly to form a water agent;

[0067] (3) Add the water agent to the dry material mixture, stir for 3 minutes, then disperse the steel fibers evenly, and stir for 1 minute to form a cement-based composite material slurry with good fluidity;

[0068] (4) Pou...

Embodiment 3

[0072] A cement-based composite material with high strength, high toughness, high impact resistance and high wear resistance, which is composed of the following materials in terms of mass percentage:

[0073] Cement (P.O 52.5) ​​22.1%

[0074] Silica fume 10%

[0075] Fly Ash 6%

[0076] Ground slag 6.37%

[0077] Corundum 44.5%

[0078] Polycarboxylate superplasticizer 0.73%

[0079] Steel fiber 2.3%

[0080] Water 8%.

[0081] The pouring method of above-mentioned cement-based composite material, comprises the steps:

[0082] (1) Weigh cement, silica fume, fly ash, ground slag, and corundum, and dry mix them for 1 minute to form a uniform dry material mixture;

[0083] (2) Then weigh the polycarboxylate superplasticizer and water, and mix them evenly to form a water agent;

[0084] (3) Add the water agent to the dry material mixture, stir for 3 minutes, then disperse the steel fibers evenly, and stir for 1 minute to form a cement-based composite material slurry with ...

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Abstract

The invention relates to a cement-based composite material with high strength, toughness, impact resistance and abrasion resistance. The cement-based composite material comprises the following materials in percentage by mass: 22.1-26.5% of cement, 15.2-23.1% of a multi-element composite mineral admixture, 44.5-55.1% of corundum, 0.72-0.78% of a water reducing agent, 1.1-2.5% of steel fibers and 7.5-10.2% of water. A building member cast by adopting the cement-based composite material provided by the invention has the characteristics of high strength, toughness, impact resistance and abrasion resistance, and is suitable for severe engineering environments with high pressure and impact abrasion such as release structures in hydraulic engineering. The raw materials used by the invention are conventional building materials for preparing common concrete, so the raw materials are readily available and low in cost. The preparation method disclosed by the invention is simple and feasible, and has the characteristic of environment friendliness by comprehensively utilizing massive industrial waste slag.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a high-strength, high-toughness, high-impact-resistance, high-abrasion-resistance cement-based composite material and a pouring method thereof, which are mainly used for drainage structures such as water conservancy projects, large-scale machine tool workshops, and airport runways. Systems, garage parking floors, etc. are subjected to severe loads of impact and friction at the same time. Background technique [0002] With the development of our society, the demand for energy has exploded. Among them, hydropower resources are a kind of green, clean and efficient energy, so my country is paying more and more attention to the development of hydropower resources. According to the "China Renewable Energy Medium and Long-Term Development Plan", by 2020, the national hydropower installed capacity will reach 300 million kilowatts, accounting for about 23% of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
Inventor 张文华张云升
Owner NANJING FORESTRY UNIV
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