Silica powder-doped colored heat-resistant cement concrete and preparation method thereof

A technology of heat-resistant cement and silica powder, which is applied in the field of concrete, can solve the problems of poor fire resistance, inapplicability, and limited application range, etc., and achieve the effects of improving compactness, reducing laitance, and improving compression resistance

Inactive Publication Date: 2018-09-14
FOSHAN HONGXING LION CONCRETE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Colored concrete floor tiles can be used to pave different colors and patterns, making roads, squares, and parking lots more colorful. Sculptures made of colored concrete are more vibrant. Colored concrete is used to decorate flower beds, tree trays, and lawns. It makes the environment more civilized and elegant, but its fire resistance is poor, so it cannot be used in environments with relatively high temperatures, such as the ground of electrolytic aluminum workshops, so its scope of use is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The invention provides a technical solution: a colored heat-resistant cement concrete mixed with silica micropowder and a preparation method thereof, comprising (according to mass percentage): 20% of Portland cement, 32% of coarse aggregate, and 30% of fine aggregate %, fly ash 6%, silica powder 3%, pigment 2%, color hardener 0.02%, composite water reducer 1%, sodium gluconate retarder 0.05%, and the balance is water.

[0025] The present invention also provides a preparation method of colored heat-resistant cement concrete mixed with silicon micropowder, comprising the following steps:

[0026] S1: Weigh portland cement, coarse aggregate and fine aggregate according to the weight ratio and pre-dry mix them to a uniform state, then take them out to obtain component A;

[0027] S2: put the fly ash, silica powder, pigment, and coloring hardener into a ball mill for mixed grinding, and take out to obtain component B;

[0028] S3: Add the composite water reducer and water ...

Embodiment 2

[0033] The invention provides a technical solution: a colored heat-resistant cement concrete mixed with silica micropowder and a preparation method thereof, comprising (according to mass percentage): 20% of Portland cement, 32% of coarse aggregate, and 30% of fine aggregate %, fly ash 6%, silica powder 4%, pigment 2%, color hardener 0.02%, composite water reducer 1%, sodium gluconate retarder 0.05%, and the balance is water.

[0034] The present invention also provides a preparation method of colored heat-resistant cement concrete mixed with silicon micropowder, comprising the following steps:

[0035] S1: Weigh portland cement, coarse aggregate and fine aggregate according to the weight ratio and pre-dry mix them to a uniform state, then take them out to obtain component A;

[0036] S2: put the fly ash, silica powder, pigment, and coloring hardener into a ball mill for mixed grinding, and take out to obtain component B;

[0037] S3: Add the composite water reducer and water ...

Embodiment 3

[0042] The invention provides a technical solution: a colored heat-resistant cement concrete mixed with silica micropowder and a preparation method thereof, comprising (according to mass percentage): 20% of Portland cement, 32% of coarse aggregate, and 30% of fine aggregate %, fly ash 6%, silica powder 5%, pigment 2%, color hardener 0.02%, composite water reducer 1%, sodium gluconate retarder 0.05%, and the balance is water.

[0043] The present invention also provides a preparation method of colored heat-resistant cement concrete mixed with silicon micropowder, comprising the following steps:

[0044]S1: Weigh portland cement, coarse aggregate and fine aggregate according to the weight ratio and pre-dry mix them to a uniform state, then take them out to obtain component A;

[0045] S2: put the fly ash, silica powder, pigment, and coloring hardener into a ball mill for mixed grinding, and take out to obtain component B;

[0046] S3: Add the composite water reducer and water a...

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Abstract

The invention discloses a silica powder-doped colored heat-resistant cement concrete. The silica powder-doped colored heat-resistant cement concrete is composed of, by weight percentage, 16-22% of Portland cement, 32-34% of coarse aggregate, 30-32% of fine aggregate, 6-7% of coal ash, 3-6% of silica powder, 0.5-9.0% of pigment, 0.01-0.03% of coloring hardener, 1-2% of compound water reducer, 0.03-0.08% of sodium gluconate retarder and water as balance. The invention also discloses a preparation method of the silica powder-doped colored heat-resistant cement concrete. The preparation method ofthe silica powder-doped colored heat-resistant cement concrete comprises the following production steps of S1, according to the weight percentage, weighing out and premixing the Portland cement, the coarse aggregate and the fine aggregate into a uniform state, and then extracting a component A. The silica powder-doped colored heat-resistant cement concrete is scientific and reasonable in composition, and by doping in the silica powder which is combined with the coal ash, can improve the material compactness and further significantly improve pressure resistance, wearing resistance and thermal resistance to meet the refractory requirements of various occasions, thereby having a good application prospect.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a colored heat-resistant cement concrete mixed with silica micropowder and a preparation method thereof. Background technique [0002] Microsilica powder can fill the pores between cement particles, and at the same time form a gel with the hydration product, and react with the alkaline material magnesium oxide to form a gel. Adding a proper amount of silica fume to cement-based concrete, mortar and refractory castables can play the following roles: 1) Significantly improve the properties of compression resistance, flexural resistance, impermeability, anti-corrosion, impact resistance and wear resistance. 2) It has the functions of water retention, preventing segregation, bleeding, and greatly reducing the resistance of concrete pumping. 3) Significantly prolong the service life of concrete. 4) Significantly reduce the ground ash of sprayed concrete and castables, and increase ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/82
CPCC04B28/04C04B2111/82C04B14/02C04B14/06C04B18/08C04B14/062C04B14/308C04B2103/0068C04B2103/302C04B24/10
Inventor 邝文辉
Owner FOSHAN HONGXING LION CONCRETE CO LTD
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