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A kind of hydraulic high performance concrete and preparation method thereof

A high-performance concrete and hydraulic technology, applied in the field of concrete, can solve problems such as poor frost resistance of concrete

Active Publication Date: 2021-05-04
JIANGSU PROVINCE WATER ENG SCI TECH CONSULTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The concrete prepared by the invention has better anti-abrasion strength, but there is a problem that the frost resistance of the concrete is poor

Method used

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  • A kind of hydraulic high performance concrete and preparation method thereof

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preparation example Construction

[0030] The preparation method of described hydraulic high-performance concrete comprises the following steps:

[0031] S1: Weigh the components of the concrete material in proportion;

[0032] S2: Superfine natural zeolite powder, gypsum, polymer emulsion, glycol compounds, modified lignosulfonate, sheet silicate mineral material, polysiloxane, oxalic acid, styrene-acrylic emulsion and Put the crystalline hydrated magnesium aluminum silicate mineral into a stirring container, stir at a speed of 600r / min-700r / min for 25-35min, add half the proportion of water while stirring, and finally stir evenly to obtain a mixture;

[0033] S3: Pour cement, fine aggregate, coarse aggregate, slag, fly ash, silica fume, tert-butyl peroxyvaleric acid tert-butyl peroxide, nano-gelatinite, ettringite-lime composite expansion agent and steel fiber Put it into the plastic sand mixing pot, then pour the mixture in step S2 into the plastic sand mixing pot, first stir at a speed of 100r / min-200r / min...

Embodiment 1

[0038] A hydraulic high-performance concrete, comprising the following components: 85 parts of fine aggregate, 95 parts of coarse aggregate, 70 parts of cement, 20 parts of slag, 22 parts of fly ash, 7 parts of silica fume, 1.3 parts of water reducer, 38 parts of water, 0.6 parts of superfine natural zeolite powder, 1.2 parts of gypsum, 0.5 parts of polymer emulsion, 0.8 parts of glycol compounds, 0.2 parts of modified lignosulfonate, 1.5 parts of phyllosilicate mineral material , 0.5 parts of polysiloxane, 0.8 parts of oxalic acid, 0.3 parts of styrene-acrylic emulsion, 2 parts of crystalline hydrated magnesium aluminum silicate minerals, 0.4 parts of superplasticizer, 0.05 parts of air-entraining agent, 1 part of steel fiber, tertiary peroxide 0.6 parts of tert-butyl valerate, 3 parts of nano gellingite, 0.6 parts of ettringite-lime composite expansion agent;

[0039] The fine aggregate is natural sand with a particle size of 5mm-20mm, the coarse aggregate is flaky granite w...

Embodiment 2

[0047] A hydraulic high-performance concrete, comprising the following components: 85 parts of fine aggregate, 90 parts of coarse aggregate, 80 parts of cement, 10 parts of slag, 22 parts of fly ash, 5 parts of silica fume, 2.3 parts of water reducer, 40 parts of water, 0.7 parts of superfine natural zeolite powder, 0.8 parts of gypsum, 0.4 parts of polymer emulsion, 1.2 parts of glycol compounds, 0.2 parts of modified lignosulfonate, 2 parts of phyllosilicate mineral materials , 0.2 parts of polysiloxane, 0.8 parts of oxalic acid, 0.5 parts of styrene-acrylic emulsion, 1 part of crystalline hydrated magnesium aluminum silicate mineral, 0.6 parts of superplasticizer, 0.04 parts of air-entraining agent, 0.9 parts of steel fiber, tertiary peroxide 0.4 parts of tert-butyl valerate, 4 parts of nano gellingite, 0.8 parts of ettringite-lime composite expansion agent;

[0048] The fine aggregate is natural sand with a particle size of 5mm-20mm, the coarse aggregate is flaky granite w...

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Abstract

The invention discloses hydraulic high-performance concrete, which belongs to the technical field of concrete. The concrete includes the following components: fine aggregate, coarse aggregate, cement, slag, fly ash, silica fume, water reducer, water, ultrafine natural zeolite powder, gypsum, polymer emulsion, glycols Compound, modified lignosulfonate, sheet silicate mineral material, polysiloxane, oxalic acid, styrene-acrylic emulsion, crystalline hydrated magnesium aluminum silicate mineral, superplasticizer, air-entraining agent, steel fiber , tert-butyl peroxy tert-valerate, nano gelatinite, ettringite-lime composite expansion agent; The dosage ratio of expansion agent is (0.4-0.8): (2-4): (0.5-0.8); In the hydraulic high performance concrete of the present invention, the reinforcement system composed of additives is used to improve the frost resistance of the hydraulic high performance concrete.

Description

technical field [0001] The invention belongs to the technical field of concrete, and in particular relates to hydraulic high-performance concrete and a preparation method thereof. Background technique [0002] In water conservancy projects, the abrasive effect of high-speed sand-containing water flow on hydraulic concrete buildings and structures is the main cause of abrasive damage to hydraulic concrete surfaces, and it is also a common disease encountered in water conservancy and hydropower projects. Abrasive damage not only requires expensive repair work, but also directly endangers the safe operation of the project. Therefore, higher requirements are put forward for the frost resistance and abrasion resistance of hydraulic concrete. [0003] The Chinese patent document "a concrete material and its preparation method (patent number: ZL201410483354.6)" discloses a concrete material comprising the following components: cement, fine aggregate, coarse aggregate, fly ash, sil...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/52C04B14/06C04B14/048C04B24/2641C04B24/26C04B24/02C04B24/18C04B22/00C04B18/08C04B18/146C04B14/48C04B24/045C04B14/36C04B2103/302C04B24/06C04B24/40C04B2103/30C04B2103/304C04B14/047C04B22/143
Inventor 宋力颜红勤颜凝香侯建宏宋欣澄胡立伟谢军刘正雨甄峰王文全
Owner JIANGSU PROVINCE WATER ENG SCI TECH CONSULTING
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