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Concrete with excellent durability

A concrete and durable technology, applied in the field of concrete, can solve the problem that the durability of concrete cannot meet the actual needs and so on

Inactive Publication Date: 2016-12-07
蚌埠市方阵商品混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The durability of concrete in the prior art cannot meet the actual needs, so it is urgent to design a concrete with excellent durability to solve the problems in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A kind of concrete with excellent durability proposed by the present invention, its raw materials include by weight: 110 parts of ordinary silicon 42.5 cement, 6 parts of modified chopped carbon fiber, 3 parts of polyvinyl alcohol, 3.5 parts of hydroxyethyl cellulose, butyl 4.5 parts of benzene emulsion, 3.5 parts of borax, 4.5 parts of calcareous gravel, 10 parts of river sand, 6 parts of magnesium aluminum carbonate hydrotalcite, 3 parts of fly ash, 2.5 parts of limestone powder, 4.5 parts of metakaolin, 3.5 parts of magnesium oxide , 3.5 parts of calcium sulfoaluminate expansion agent, 2 parts of polycarboxylate superplasticizer, 2 parts of defoamer, and 6 parts of water.

[0021] Among them, small stones with a particle size of 15mm accounted for 30% of the calcareous gravel, and large stones with a particle size of 30mm accounted for 70%. The fineness modulus of river sand is 3.15, the sand content is 1.4%, and the apparent density is 2680kg / m 3 , the loose bulk d...

Embodiment 2

[0024] A kind of concrete with excellent durability proposed by the present invention, its raw materials include by weight: 100 parts of ordinary silicon 42.5 cement, 8 parts of modified chopped carbon fiber, 1 part of polyvinyl alcohol, 5 parts of hydroxyethyl cellulose, butyl 3 parts of benzene emulsion, 5 parts of borax, 3 parts of calcareous gravel, 15 parts of river sand, 3 parts of magnesium aluminum carbonate hydrotalcite, 4 parts of fly ash, 1 part of limestone powder, 6 parts of metakaolin, 2 parts of magnesium oxide , 5 parts of calcium sulfoaluminate expansion agent, 1 part of polycarboxylate superplasticizer, 3 parts of defoamer, and 3 parts of water.

[0025] Among them, small stones with a particle size of 5mm accounted for 30% of the calcareous gravel, and large stones with a particle size of 40mm accounted for 70%. The fineness modulus of river sand is 3.0, the sand content is 1.45%, and the apparent density is 2680kg / m 3 , the loose bulk density is 1468kg / m ...

Embodiment 3

[0028]A kind of concrete with excellent durability proposed by the present invention, its raw materials include by weight: 120 parts of ordinary silicon 42.5 cement, 4 parts of modified chopped carbon fiber, 5 parts of polyvinyl alcohol, 2 parts of hydroxyethyl cellulose, butyl 6 parts of benzene emulsion, 2 parts of borax, 6 parts of calcareous gravel, 5 parts of river sand, 9 parts of magnesium aluminum carbonate hydrotalcite, 2 parts of fly ash, 4 parts of limestone powder, 3 parts of metakaolin, 5 parts of magnesium oxide , 2 parts of calcium sulfoaluminate expansion agent, 3 parts of polycarboxylate superplasticizer, 1 part of defoamer, 9 parts of water.

[0029] Among them, small stones with a particle size of 25mm accounted for 30% of the calcareous gravel, and large stones with a particle size of 20mm accounted for 70%. The fineness modulus of river sand is 3.3, the sand content is 1.35%, and the apparent density is 2680kg / m 3 , the loose bulk density is 1468kg / m 3 ,...

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Abstract

The invention discloses a concrete with excellent durability. The concrete is prepared from the following raw materials in parts by weight: 100-120 parts of ordinary Portland 42.5 cement, 3-6 parts of epoxy resin, 3-5 parts of chlorinated polyethylene, 1-4 parts of polydimethylsiloxane, 4-8 parts of modified chopped carbon fiber, 2-5 parts of carboxymethyl cellulose, 1-4 parts of vinyl triamine, 3-6 parts of resorcinol, 2-5 parts of silane coupling agent KH-560, 1-5 parts of polyvinyl alcohol, 2-4 parts of ammonium phosphate, 2-5 parts of borax, 3-6 parts of macadam, 5-15 parts of river sand, 3-9 parts of magnesium aluminum carbonate hydrotalcite, 1-4 parts of fly ash limestone flour, 3-6 parts of metakaolin, 2-5 parts of magnesium oxide, 1-3 parts of polycarboxylic acid water reducing agent, 1-3 parts of defoaming agent and 3-9 parts of water. The concrete has excellent fatigue resistance.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a concrete with excellent durability. Background technique [0002] Concrete usually uses cement as the cementitious material, sand and stone as aggregates, mixed with water (may contain admixtures and admixtures) in a certain proportion, and the cement concrete obtained by mixing is also called ordinary concrete. , low energy consumption, good durability, cheap price, and can be combined with steel to make various load-bearing structures, it is the most widely used building material in contemporary times and plays a very important role in the development of human society. [0003] The durability of concrete in the prior art cannot meet the actual needs, so it is urgent to design a concrete with excellent durability to solve the problems in the prior art. Contents of the invention [0004] In order to solve the technical problems in the background technology, the present inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B20/02C04B14/38C04B111/20
CPCC04B28/04C04B20/023C04B2111/20C04B14/386C04B24/2623C04B24/383C04B24/2676C04B22/08C04B14/28C04B14/068C04B14/36C04B18/08C04B14/106C04B22/066C04B22/142C04B24/24C04B2103/50C04B22/002
Inventor 朱宏庆
Owner 蚌埠市方阵商品混凝土有限公司
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