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Concrete additive and concrete

A technology for concrete and additives, applied in the field of concrete, can solve the problems of single function and poor concrete maintenance effect, and achieve the effects of simple production process, low cost and good crack resistance.

Inactive Publication Date: 2017-01-04
GUILIN XINYI REFRIGERATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is necessary to add a protective agent to the concrete to protect the concrete. The existing concrete additives have the technical shortcomings of single function and poor maintenance effect on concrete.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The concrete additive of the present embodiment is made from the raw materials of following parts by weight: 9 parts of fly ash, 10 parts of silicon dioxide powder, 10 parts of polypropylene fiber, 7 parts of zeolite powder, 5 parts of calcium lignosulfonate powder, 10 parts of acrylic emulsion, wherein the particle size of the fly ash is 30-50 μm, the silica powder is nano silica powder, and the polypropylene fiber is monofilament polypropylene.

[0021] The concrete of the above embodiment contains the above-mentioned concrete additive, and the mass of the concrete additive is 5wt% of the concrete mass.

[0022] The concrete of this embodiment contains the above-mentioned concrete modifier, and the quality of the concrete modifier is 3 wt% of the concrete mass.

[0023] The concrete obtained in Example 1 was tested with a concrete resistivity tester, and the resistivity was obtained as 0.46Ω·m in wet state and 1.62Ω·m in dry state.

[0024] The concrete obtained in E...

Embodiment 2

[0028] The concrete additive of the present embodiment is made from the raw materials of following parts by weight: 9 parts of fly ash, 10 parts of silicon dioxide powder, 10 parts of polypropylene fiber, 7 parts of zeolite powder, 5 parts of calcium lignosulfonate powder, 10 parts of acrylic emulsion, wherein the particle size of the fly ash is 30-50 μm, the silica powder is nano silica powder, and the polypropylene fiber is monofilament polypropylene.

[0029] The concrete of the above embodiment contains the above-mentioned concrete additive, and the mass of the concrete additive is 7wt% of the concrete mass.

[0030] The concrete obtained in Example 2 was tested with a concrete resistivity meter, and the resistivity was obtained as 0.52Ω·m in wet state and 1.64Ω·m in dry state.

[0031] The concrete obtained in Example 2 was tested according to GB / T19856.1, and its impulse current resistance ΔR%=2.7%.

[0032] The concrete obtained in Example 2 was subjected to a power fr...

Embodiment 3

[0035] The concrete additive of the present embodiment is made from the raw materials of following parts by weight: 12 parts of fly ash, 5 parts of silicon dioxide powder, 16 parts of polypropylene fiber, 4 parts of zeolite powder, 8 parts of calcium lignosulfonate powder, 5 parts of acrylic emulsion, wherein the particle size of the fly ash is 30-50 μm, the silica powder is nano silica powder, and the polypropylene fiber is monofilament polypropylene.

[0036] The concrete of the above embodiment contains the above-mentioned concrete additive, and the mass of the concrete additive is 10wt% of the concrete mass.

[0037] The concrete of this embodiment contains the above-mentioned concrete modifier, and the mass of the concrete modifier is 8wt% of the concrete mass.

[0038] The concrete obtained in Example 3 was tested with a concrete resistivity meter, and the resistivity was obtained as 0.46Ω·m in wet state and 1.56Ω·m in dry state.

[0039] The concrete obtained in Exampl...

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Abstract

The invention discloses a concrete additive and concrete, and belongs to the technical field of concrete. The concrete additive is prepared from the following raw materials in parts by weight: 6-12 parts of fly ash, 5-15 parts of silicon dioxide powder, 4-16 parts of polypropylene fiber, 4-10 parts of zeolite powder, 2-8 parts of calcium lignosulphonate powder and 5-15 parts of acrylic emulsion. The concrete additive can improve the toughness, the compressive strength and the durability of the concrete; the concrete prepared by using the concrete additive is good in tensile resistance, bending resistance and anti-cracking performance, low in price, simple in production process and low in cost, and is suitable for large-scale production.

Description

technical field [0001] The invention relates to a concrete additive and concrete thereof, belonging to the technical field of concrete. Background technique [0002] Concrete, referred to as "concrete" for short, usually refers to using cement as the cementitious material, sand and stone as the aggregate, mixed with water in a certain proportion, and mixed. Concrete has the characteristics of rich raw materials, low price and simple production process, which makes it widely used. It is not only used in various civil engineering, but also in shipbuilding, machinery industry, marine development, geothermal engineering, etc. Concrete is also an important material . [0003] In practical engineering applications, concrete is often exposed to various harsh environments, such as the intrusion of corrosive media around the environment, changes in ambient temperature and humidity, freeze-thaw cycle damage, and some concrete projects are often subject to heavy load wear, etc. These ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/26C04B28/00
CPCC04B40/0039C04B28/00C04B2201/50C04B18/08C04B14/062C04B16/0633C04B14/047C04B24/18C04B24/2641
Inventor 陆应生王君
Owner GUILIN XINYI REFRIGERATION EQUIP
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