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Impact-resistant and wear-resistant concrete for civil engineering and preparation method thereof

A technology of civil engineering and concrete, which is applied in the field of impact and wear-resistant concrete for civil engineering and its preparation, can solve the problems of poor performance such as erosion resistance, wear resistance and cavitation resistance, etc., to improve interface performance, increase overall strength, The effect of excellent crack resistance

Pending Publication Date: 2021-09-07
XIJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the technical problems of poor erosion resistance, wear resistance and cavitation resistance of civil engineering buildings, the present invention provides a kind of impact and wear resistance concrete for civil engineering and its preparation method, which has excellent impact resistance and wear resistance , and not easy to break

Method used

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  • Impact-resistant and wear-resistant concrete for civil engineering and preparation method thereof

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Effect test

Embodiment 1

[0024] Example 1, a kind of anti-impact and wear-resistant concrete for civil engineering, prepared from the following raw materials in parts by weight:

[0025] 100 parts of Portland cement, 200 parts of river sand, 40 parts of igneous rock fiber, 6 parts of fly ash, 20 parts of large-pore mesoporous silica, 10 parts of silica fume, 3 parts of HF anti-impact and wear-resistant special water reducer, 1 part of 0.05g / L graphene oxide solution, 5 parts of nano-crystalline cellulose, 1 part of nano-corn starch, 5 parts of lithium polysilicate, and 50 parts of water.

[0026] A method for preparing impact-resistant and wear-resistant concrete for civil engineering, comprising the steps of:

[0027] S1. Weigh by weight: 100 parts of Portland cement, 200 parts of river sand, 40 parts of igneous rock fiber, 6 parts of fly ash, 20 parts of large-aperture mesoporous silica, 10 parts of silica fume, HF impact resistance 3 parts of special water reducer for grinding, 1 part of 0.05g / L g...

Embodiment 2

[0033] Embodiment 2, a kind of impact-resistant and wear-resistant concrete for civil engineering, prepared from the following raw materials in parts by weight:

[0034] 120 parts of Portland cement, 300 parts of river sand, 50 parts of igneous rock fiber, 10 parts of fly ash, 30 parts of large-pore mesoporous silica, 12 parts of silica fume, 5 parts of HF anti-impact and wear-resistant special water reducer, 2 parts of 0.05g / L graphene oxide solution, 8 parts of nano-crystalline cellulose, 3 parts of nano-corn starch, 10 parts of lithium polysilicate, and 80 parts of water.

[0035] A method for preparing impact-resistant and wear-resistant concrete for civil engineering, comprising the steps of:

[0036] S1. Weigh by weight: 120 parts of Portland cement, 300 parts of river sand, 50 parts of igneous rock fiber, 10 parts of fly ash, 30 parts of large-pore mesoporous silica, 12 parts of silica fume, HF impact resistance 5 parts of special water reducer for grinding, 2 parts of...

Embodiment 3

[0042] Embodiment 3, a kind of impact-resistant and wear-resistant concrete for civil engineering, prepared from the following raw materials in parts by weight:

[0043] 110 parts of Portland cement, 250 parts of river sand, 45 parts of igneous rock fiber, 8 parts of fly ash, 25 parts of large-pore mesoporous silica, 11 parts of silica fume, 4 parts of HF special water reducer for impact and wear resistance, 1.5 parts of 0.05g / L graphene oxide solution, 6.5 parts of nano-crystalline cellulose, 2 parts of nano-corn starch, 7.5 parts of lithium polysilicate, and 65 parts of water.

[0044] A method for preparing impact-resistant and wear-resistant concrete for civil engineering, comprising the steps of:

[0045] S1. Weigh by weight: 110 parts of Portland cement, 250 parts of river sand, 45 parts of igneous rock fiber, 8 parts of fly ash, 25 parts of large-aperture mesoporous silica, 11 parts of silica fume, HF impact resistance 4 parts of special water reducer for grinding, 1.5...

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Abstract

The invention provides impact-resistant and wear-resistant concrete for civil engineering and a preparation method thereof. The preparation method comprises the following steps: firstly, weighing raw materials in parts by weight, and ultrasonically dispersing the weighed fly ash, silica fume and nano corn starch in water accounting for 1 / 3 of the total water quantity to obtain a suspension A; ultrasonically dispersing the weighed large-aperture mesoporous silica and lithium polysilicate in water accounting for 1 / 3 of the total water amount to obtain a suspension B; then ultrasonically dispersing the weighed igneous rock fiber, nanocrystal cellulose and HF impact-resistant and wear-resistant special water reducing agent into water accounting for 1 / 3 of the total water quantity to obtain a suspension C; and finally, mixing Portland cement and river sand, respectively scattering the obtained suspension C, a graphene oxide solution, the suspension A and the suspension B in a stirring state, uniformly mixing and stirring, conveying the obtained mixed material into a finished product homogenizing bin by using an elevator, and homogenizing by using air generated at the bottom of the homogenizing bin to obtain the product. The concrete provided by the invention has excellent impact resistance and wear resistance, and is not easy to break.

Description

technical field [0001] The invention relates to the technical field of concrete preparation, in particular to an impact-resistant and wear-resistant concrete for civil engineering and a preparation method thereof. Background technique [0002] The abrasive damage of high sand content and high speed water flow to the concrete on the flow surface of hydraulic structures is a difficult problem in the construction and operation of hydropower projects, and water conservancy projects often require the construction of large flood discharge tunnels on sandy rivers, and the flow rate of flood discharge is in the 10-30m / s, sand content greater than 100kg / m 3 Under the harsh conditions, building wear and cavitation are very serious. [0003] At this stage, the commercially available anti-scour concrete is mainly silica fume concrete, which has the advantages of high strength and good workability, but its anti-scour and wear-resistant still cannot fully meet the needs of water conserva...

Claims

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Application Information

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IPC IPC(8): C04B28/26C04B111/20C04B111/34
CPCC04B28/26C04B2111/2038C04B2111/343C04B7/02C04B14/06C04B14/46C04B18/08C04B18/146C04B14/022C04B24/38C04B24/383C04B2103/302
Inventor 刘明明
Owner XIJING UNIV
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