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Impermeable wear-resistant concrete and preparation method thereof

A concrete and recycled concrete technology, which is applied in the field of building materials, can solve the problems of concrete impermeability and wear resistance that cannot meet the needs, and achieve the effect of improving impermeability, impermeability and wear resistance, and improving microstructure

Inactive Publication Date: 2020-12-04
浙江拓邦混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in order to achieve the purpose of environmental protection, recycled concrete is usually used to prepare new concrete. With the harsh environment of modern buildings, the demand for concrete with impermeability and wear resistance is increasing, and the current concrete The impermeability and wear resistance can not meet the demand, so it still needs to be improved

Method used

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  • Impermeable wear-resistant concrete and preparation method thereof
  • Impermeable wear-resistant concrete and preparation method thereof
  • Impermeable wear-resistant concrete and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0042] The application discloses an anti-seepage and wear-resistant concrete and a preparation method thereof. The preparation method comprises the following steps:

[0043] S1. Raw material mixing; mix recycled concrete, slag powder, fly ash and crushed stone, add straw cut into 20mm pieces while stirring, add 100 parts of water and stir for 5 minutes; then add lauryl alcohol which is well mixed Disodium sulfosuccinate, glycidyl acrylate and emulsifier were stirred for 30 minutes to obtain concrete raw materials;

[0044] S2. Compact molding; pour the concrete raw material of S1 into the mould, insert vertically with an inserting vibrator and insert it into the unprepared concrete of the lower layer and vibrate for 80s at 50 mm;

[0045] S3. Steam-cured concrete; pour the concrete raw materials of S1 into the mold for pre-curing, the pre-curing temperature is 30°C, and the time is 1h; cut the pre-cured products, and then steam-cure, the steam-curing temperature is 180°C, The...

Embodiment 2

[0048] The application discloses an anti-seepage and wear-resistant concrete and a preparation method thereof. The preparation method comprises the following steps:

[0049] S1. Raw material mixing; mix recycled concrete, slag powder, fly ash and crushed stone, add straw cut into 20mm pieces while stirring, add 220 parts of water and stir for 8 minutes; then add lauryl alcohol that is well mixed Disodium sulfosuccinate, glycidyl acrylate and emulsifier were stirred for 50 minutes to obtain concrete raw materials;

[0050] S2. Compact molding; pour the concrete raw material of S1 into the mould, insert vertically with an inserting vibrator and insert it into the unprepared concrete of the lower layer and vibrate for 100s at 100 mm;

[0051] S3. Steam-cured concrete; pour the concrete raw materials of S1 into the mold for pre-curing, the pre-curing temperature is 40°C, and the time is 1.5h; cut the pre-cured products, and then steam-cure, the steam-curing temperature is 200°C , p...

Embodiment 3

[0054] The application discloses an anti-seepage and wear-resistant concrete and a preparation method thereof. The preparation method comprises the following steps:

[0055] S1. Raw material mixing; mix recycled concrete, slag powder, fly ash and crushed stone, add straw cut into 20mm pieces while stirring, add 180 parts of water and stir for 7 minutes; then add lauryl alcohol which is well mixed Disodium sulfosuccinate, glycidyl acrylate and emulsifier were stirred for 40 minutes to obtain concrete raw materials;

[0056] S2. Compact molding; pour the concrete raw material of S1 into the mould, insert vertically with an inserting vibrator and insert it into the unprepared concrete of the lower layer and vibrate for 90s at 80 mm;

[0057] S3. Steam-cured concrete; pour the concrete raw materials of S1 into the mold for pre-curing, the pre-curing temperature is 35°C, and the time is 1.5h; cut the pre-cured products, and then steam-curing, the steam-curing temperature is 190°C ...

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Abstract

The invention relates to the field of building materials, and discloses impermeable wear-resistant concrete and a preparation method thereof. The concrete comprises the following raw materials by weight: 200-350 parts of recycled concrete, 50-75 parts of slag powder, 50-75 parts of fly ash, 600-650 parts of broken stone, 5-6 parts of straw, 4-5 parts of disodium lauryl sulfosuccinate, 2-3 parts ofepoxypropyl acrylate, and 0.2-0.4 part of an emulsifier. Compared with the prior art, the impermeable wear-resistant concrete and the preparation method thereof in the invention has the following advantages and effects: in the presence of the emulsifier, disodium lauryl sulfosuccinate and epoxypropyl acrylate are mixed to obtain polymer particles with small particle sizes and enhance the stability of the particles, the microstructure of the concrete is improved, a water cement ratio can be properly reduced due to surface activity effect, the concrete is denser, and the impermeability of the concrete is improved, and hydrogen bonds are easily formed between carboxyl groups of disodium lauryl sulfosuccinate and glycidyl acrylate, and the obtained polymer phase can fill in part of capillarypores and other gaps in the concrete after the concrete is hardened, so the impermeability and the wear resistance of the concrete are improved.

Description

technical field [0001] The present application relates to the technical field of building materials, in particular to an anti-seepage and wear-resistant concrete and a preparation method thereof. Background technique [0002] Concrete is one of the most important civil engineering materials at present. It is composed of cementitious materials, granular aggregates (also known as aggregates), water, and additives and admixtures added when necessary, prepared in a certain proportion, uniformly stirred, densely formed, cured and hardened. artificial stone. [0003] At present, in order to achieve the purpose of environmental protection, recycled concrete is usually used to prepare new concrete. With the harsh environment of modern buildings, the demand for concrete with impermeability and wear resistance is increasing. The current concrete The impermeability and wear resistance can not meet the demand, so it still needs to be improved. Contents of the invention [0004] Aim...

Claims

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Application Information

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IPC IPC(8): C04B28/08C04B40/02
CPCC04B28/08C04B40/024C04B2201/50C04B2201/52C04B18/08C04B18/167C04B18/24C04B24/16C04B24/281C04B24/125C04B24/12C04B14/048
Inventor 计晓隆刘志华贾进丰
Owner 浙江拓邦混凝土有限公司
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