High-toughness inspection well concrete and method for preparing same

An inspection well and concrete technology, applied in the field of concrete, can solve the problems of toughness, low strength, poor impact toughness, large drying shrinkage, etc., and achieve the effects of good durability, strong impact resistance and improved dispersion.

Inactive Publication Date: 2013-03-27
FEIXI WANXI CEMENT PROD
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Problems solved by technology

At present, concrete still has the disadvantages of poor impact toughness, high brittleness, large drying shrinkage, and easy cracking.
Most of the inspection wells used in the existing urban sewage treatment system are made of concrete, but there are problems such as toughness and low strength

Method used

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  • High-toughness inspection well concrete and method for preparing same

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Embodiment Construction

[0014] High-toughness inspection well concrete, including the following components by weight: 380 parts of ordinary Portland cement, 85 parts of fly ash, 28 parts of calcined red mud, 66 parts of slag powder, and isopropyl distearoyl aluminum 3 parts of acid ester, 25 parts of styrene-acrylic emulsion, 110 parts of straw ash, 36 parts of modified rubber powder, 1120 parts of limestone gravel, 540 parts of river sand, 150 parts of water, 6 parts of naphthalene-based superplasticizer.

[0015] Wherein, the particle size of the limestone gravel is 10mm; the particle size of the river sand is 5mm, and the mud content is less than 2%.

[0016] The modified rubber powder is prepared by the following method: soak the rubber powder in NaOH saturated solution for 25 minutes, wash and filter, then dry, add 3% coupling agent KH-560, 5% Polyvinyl alcohol and 0.3% methyl hydroxyethyl cellulose ether can be dried after ball milling for 2 hours.

[0017] The preparation meth...

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Abstract

The invention discloses high-toughness inspection well concrete which comprises the following components in parts by weight: 350-400 parts of ordinary portland cement, 60-90 parts of fly ash, 20-30 parts of calcined red mud, 50-80 of slag powder, 2-4 parts of distearoyl isopropyl aluminate, 20-30 parts of styrene-acrylic emulsion, 100-120 parts of straw ash, 30-40 parts of modified rubber powder, 1,000-1,200 parts of crushed limestone, 500-600 parts of river sand, 140-160 parts of water and 5-8 parts of naphthalene high-efficiency water reducing agent. By adjusting the formula, improving the process and coating the slag powder by the straw, the properties such as the water penetration resistance, high temperature resistance and strength of the concrete are improved. The high-toughness inspection well concrete prepared by adopting the method has good toughness, high strength, strong impact resistance, good water penetration resistance and good durability and can be used for various high-level and large-span engineering used in the severe conditions.

Description

technical field [0001] The invention relates to concrete, in particular to a high-toughness inspection well concrete and a preparation method thereof. Background technique [0002] Concrete is a combination of natural (or artificial) rock and sand with cementitious materials to form a hard whole. It has the advantages of easy molding, low energy consumption, good durability and low price, and can be made into various The advantage of this kind of load-bearing mechanism is that it is the most widely used building material in contemporary times and plays a very important role in the development of human society. At present, concrete still has disadvantages such as poor impact toughness, high brittleness, large drying shrinkage, and easy cracking. Most of the inspection wells used in the existing urban sewage treatment systems are made of concrete, but there are problems such as toughness and low strength. Therefore, developing a high-toughness manhole concrete to meet the ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B18/22C04B18/28
CPCY02W30/91
Inventor 张瑞才
Owner FEIXI WANXI CEMENT PROD
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