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High-performance concrete

A high-performance concrete and water reducing agent technology, applied in the field of concrete, can solve the problems of concrete strength, impermeability and durability that cannot meet the requirements of the society, achieve good synergistic effects, hinder the migration of water, and reduce porosity Effect

Inactive Publication Date: 2015-03-11
WUWEI HENGJI COMML CONCRETE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the strength, impermeability and durability of concrete cannot meet the requirements of society, and further development and improvement are needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The high-performance concrete of the present invention, its raw material comprises the following components by weight: 140 parts of cement, 500 parts of gravel, 180 parts of river sand, 30 parts of fly ash, 50 parts of slag, 50 parts of silica fume, limestone powder 30 parts, 20 parts of basalt fiber, 80 parts of straw powder, 2 parts of water reducer, 80 parts of nano-silica, 5 parts of nano-calcium carbonate, 30 parts of multi-walled carbon nanotubes, 1 part of sodium lauryl sulfate, hard 6 parts of zinc fatty acid, 2 parts of boric acid, 7 parts of sodium citrate, 80 parts of water;

[0019] Wherein, the water reducer is prepared according to the following process: add 100 parts of cellulose and 10 parts of propanol to the flask by weight, stir at a speed of 350r / min for 15min, and then dropwise add 70 parts of sodium hydroxide aqueous solution, wherein, The mass fraction of sodium hydroxide in the sodium hydroxide aqueous solution is 35wt%. Stir at a rate of 1500r / m...

Embodiment 2

[0021] The high-performance concrete of the present invention, its raw material comprises the following components by weight: 100 parts of cement, 700 parts of gravel, 100 parts of river sand, 60 parts of fly ash, 20 parts of slag, 90 parts of silica fume, limestone powder 10 parts, 50 parts of basalt fiber, 30 parts of straw powder, 6 parts of water reducer, 20 parts of nano silicon dioxide, 15 parts of nano calcium carbonate, 5 parts of multi-walled carbon nanotubes, 3 parts of sodium lauryl sulfate, hard 3 parts of zinc fatty acid, 5 parts of boric acid, 3 parts of sodium citrate, 100 parts of water;

[0022] Wherein, the water reducer is prepared according to the following process: add 100 parts of cellulose and 20 parts of propanol in the flask by weight, stir at a rate of 200r / min for 30min, and then dropwise add 50 parts of sodium hydroxide aqueous solution, wherein, The mass fraction of sodium hydroxide in the sodium hydroxide aqueous solution is 40wt%. Stir at a rate ...

Embodiment 3

[0024] The high-performance concrete of the present invention, its raw material comprises the following components by weight: 123 parts of cement, 665 parts of gravel, 142 parts of river sand, 55 parts of fly ash, 33 parts of slag, 76 parts of silica fume, limestone powder 21 parts, 43 parts of basalt fiber, 67 parts of straw powder, 3.9 parts of water reducer, 59 parts of nano-silica, 13 parts of nano-calcium carbonate, 26 parts of multi-walled carbon nanotubes, 2.6 parts of sodium lauryl sulfate, hard Zinc fatty acid 4.8 parts, boric acid 3.3 parts, sodium citrate 4.6 parts, water 95 parts;

[0025] Wherein, the water reducer is prepared according to the following process: 100 parts of cellulose and 13 parts of propanol are added to the flask in parts by weight, stirred at a rate of 256r / min for 17min, and then 65 parts of aqueous sodium hydroxide solution is added dropwise, wherein, The mass fraction of sodium hydroxide in the sodium hydroxide aqueous solution is 38wt%. Sti...

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Abstract

Disclosed high-performance concrete comprises the following compositions in parts by weight: 100-140 parts of cement, 500-700 parts of broken stone, 100-180 parts of river sand, 30-60 parts of fly ash, 20-50 parts of mineral slag, 50-90 parts of silica fume, 10-30 parts of limestone powder, 20-50 parts of basalt fiber, 30-80 parts of straw powder, 2-6 parts of a water reducer, 20-80 parts of nanometer silicon dioxide, 5-15 parts of nanometer calcium carbonate, 5-30 parts of multiwalled carbon nanotube, 1-3 parts of sodium dodecyl sulfate, 3-6 parts of zine stearate, 2-5 parts of boric acid, 3-7 parts of sodium citrate, and 80-100 parts of water. The high-performance concrete is high in strength, good in impermeability and good in endurance.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a high-performance concrete. 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. 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 [0003] Based on the technical problems in the background technology, the present invention proposes a high-performance concrete with high strength, good impermeability and durability. [0004] The present invention proposes a high-performance concrete, the raw materials of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B14/06C04B14/02C04B18/08C04B18/30C04B14/38
CPCY02W30/91
Inventor 倪友
Owner WUWEI HENGJI COMML CONCRETE
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