High-strength high-performance concrete and preparation method thereof

A high-performance concrete and high-strength technology, applied in the field of concrete preparation, can solve the problems of concrete strength, impermeability and durability that cannot meet the requirements of the society, and achieve avoidance of segregation or bleeding, high volume stability, and water reduction high rate effect

Inactive Publication Date: 2018-01-05
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the strength, impermeability and durability of concrete cannot m

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0018] Example 1

[0019] The concrete components by weight include 100 parts of cement, 50 parts of silica sand, 10 parts of nano-magnesium oxide, 10 parts of fly ash, 5 parts of nano calcium carbonate, 30 parts of water reducing agent, 10 parts of sulfonated lignin, and 2 parts of titanium fiber. Parts, 4 parts of polytetrafluoroethylene powder, 3 parts of sodium alginate, 10 parts of silane coupling agent, 10 parts of glass fiber powder, 20 parts of ultrafine mineral powder, 50 parts of purified water.

[0020] The preparation method of this embodiment includes the following steps:

[0021] A. Mix cement, silica sand, nano-magnesium oxide, fly ash, nano-calcium carbonate, titanium fiber, polytetrafluoroethylene powder, sodium alginate, 1 / 2 water reducing agent and 1 / 2 purified water, and add them to the stirred tank after mixing Stir at high and low speeds, and then obtain mixture A;

[0022] B. Add silane coupling agent, glass fiber powder, and ultra-fine mineral powder to mixtur...

Example Embodiment

[0026] Example 2

[0027] The concrete components by weight include 300 parts of cement, 100 parts of silica sand, 30 parts of nano-magnesium oxide, 20 parts of fly ash, 15 parts of nano-calcium carbonate, 60 parts of water reducing agent, 25 parts of sulfonated lignin, and 12 parts of titanium fiber. Parts, 18 parts of polytetrafluoroethylene powder, 15 parts of sodium alginate, 30 parts of silane coupling agent, 20 parts of glass fiber powder, 40 parts of ultrafine mineral powder, 100 parts of purified water.

[0028] The preparation method of this embodiment includes the following steps:

[0029] A. Mix cement, silica sand, nano-magnesium oxide, fly ash, nano-calcium carbonate, titanium fiber, polytetrafluoroethylene powder, sodium alginate, 1 / 2 water reducing agent and 1 / 2 purified water, and add them to the stirred tank after mixing Stir at high and low speeds, and then obtain mixture A;

[0030] B. Add silane coupling agent, glass fiber powder, and ultra-fine mineral powder to ...

Example Embodiment

[0034] Example 3

[0035] The concrete components include 150 parts by weight of cement, 60 parts of silica sand, 15 parts of nano-magnesium oxide, 12 parts of fly ash, 7 parts of nano-calcium carbonate, 35 parts of water reducing agent, 12 parts of sulfonated lignin, and 3 parts of titanium fiber. Parts, 5 parts of polytetrafluoroethylene powder, 4 parts of sodium alginate, 15 parts of silane coupling agent, 12 parts of glass fiber powder, 25 parts of ultrafine mineral powder, 55 parts of purified water.

[0036] The preparation method of this embodiment includes the following steps:

[0037] A. Mix cement, silica sand, nano-magnesium oxide, fly ash, nano-calcium carbonate, titanium fiber, polytetrafluoroethylene powder, sodium alginate, 1 / 2 water reducing agent and 1 / 2 purified water, and add them to the stirred tank after mixing Stir at high and low speeds, and then obtain mixture A;

[0038] B. Add silane coupling agent, glass fiber powder, and ultra-fine mineral powder to mixtur...

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Abstract

The invention discloses high-strength high-performance concrete, components of which comprise (by weight): 100-300 parts of cement, 50-100 parts of silica sand, 10-30 parts of nanometer magnesia, 10-20 parts of fly ash, 5-15 parts of nanometer calcium carbonate, 30-60 parts of a water reducer, 10-25 parts of lignin sulfonate, 2-12 parts of titanium fiber, 4-18 parts of polytetrafluoroethylene powder, 3-15 parts of sodium alginate, 10-30 parts of a silane coupling agent, 10-20 parts of glass fibre powder, 20-40 parts of ultrafine mineral powder and 50-100 parts of purified water. The inventionalso discloses a preparation method of the high-strength high-performance concrete. The method is simple for construction. The prepared concrete has high strength (strength is 45-60 Mpa), good anti-permeability and good durability. Meanwhile, the prepared concrete has excellent high crack resistance and impermeability. Thus, the hidden trouble that concrete cannot be used due to leakage and ponding caused by poor crack resistance and impermeability is avoided. Strength of concrete in middle and late stages is enhanced.

Description

technical field [0001] The invention relates to the technical field of concrete preparation, in particular to a high-strength and high-performance concrete and a preparation method thereof. Background technique [0002] Concrete is the largest construction material today, and high-performance concrete represents the development direction of concrete technology. In recent years, with the vigorous development of the domestic construction industry, the requirements for the strength and durability of the concrete consumed in the construction process have been continuously increased. [0003] At present, the strength, impermeability and durability of concrete cannot meet the requirements of society, and further development and improvement are needed. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a high-strength high-performance concrete and its preparation method to solve the problems raised in the above-mentioned ...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B111/34
Inventor 杨亮金寿寿吕旭
Owner CHINA MCC17 GRP
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