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Modified high performance concrete and preparation method thereof

A high-efficiency, concrete technology, applied in the field of concrete materials, can solve the problems of inability to meet the requirements of the service life, waste of energy, resources, and decrease of structural strength, etc. the effect of strength

Inactive Publication Date: 2018-08-24
ANHUI YUTE CONCRETE STRUCTURE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Concrete drainage pipes laid underground for a long time are generally used well, and the cost of the pipe itself is very low. However, due to the heavy weight of the pipe, it is difficult to transport and install, and the requirements for the foundation are relatively high (concrete foundation is often used), so the overall cost is not high. Low, and when there are corrosive media inside or outside, corrosion damage will occur, resulting in a decrease in structural strength, failing to meet the requirements of the service life, resulting in waste of energy and resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In this embodiment, a modified high-performance concrete is made of the following raw materials in parts by weight: 40 parts of cement, 30 parts of modified gravel, 30 parts of fly ash, 30 parts of modified zeolite, and 15 parts of ultrafine quartz tailing sand powder , 10 parts of asbestos wool, 5 parts of epoxy resin, 3 parts of citric acid, 2 parts of toughening agent, 1 part of water reducing agent, 2 parts of dimethylformamide, 1 part of hydroxypropyl-β-cyclodextrin, water 120 copies;

[0022] Among them, the modification method of the modified zeolite is: weigh 30 parts of natural zeolite, place it in a beaker, add the prepared strong acid solution into it, place it on a digital display oscillator at room temperature, and adjust the oscillation value to 160, After shaking for 1 hour, the product was filtered, washed with deionized water until neutral, dried at 70°C, and ground to obtain a modified zeolite;

[0023] The modification method of the modified crushed ...

Embodiment 2

[0027] A modified high-performance concrete in this embodiment is made of the following raw materials in parts by weight: 70 parts of cement, 60 parts of modified gravel, 60 parts of fly ash, 60 parts of modified zeolite, and 35 parts of ultrafine quartz tailings powder , 25 parts of asbestos wool, 10 parts of epoxy resin, 10 parts of citric acid, 5 parts of toughening agent, 4 parts of water reducing agent, 5 parts of dimethylformamide, 3 parts of hydroxypropyl-β-cyclodextrin, water 230 copies;

[0028] Among them, the modification method of the modified zeolite is as follows: Weigh 45 parts of natural zeolite, place it in a beaker, add the prepared strong acid solution to it, place it on a digital display oscillator at room temperature, and adjust the oscillation value to 180, After shaking for 2 hours, the product was filtered, washed with deionized water until neutral, dried at 85°C, and ground to obtain a modified zeolite;

[0029] The modification method of the modified...

Embodiment 3

[0033] A modified high-performance concrete in this embodiment is made of the following raw materials in parts by weight: 55 parts of cement, 45 parts of modified crushed stone, 45 parts of fly ash, 45 parts of modified zeolite, and 25 parts of ultrafine quartz tailings powder , 18 parts of asbestos wool, 8 parts of epoxy resin, 6 parts of citric acid, 3.5 parts of toughening agent, 2.5 parts of water reducing agent, 3.5 parts of dimethylformamide, 2 parts of hydroxypropyl-β-cyclodextrin, water 170 copies;

[0034] Among them, the modification method of the modified zeolite is as follows: Weigh 38 parts of natural zeolite, place it in a beaker, add the prepared strong acid solution to it, place it on a digital display oscillator at room temperature, and adjust the oscillation value to 170, After shaking for 1.5 hours, the product was filtered, washed with deionized water until neutral, dried at 78°C, and ground to obtain a modified zeolite;

[0035] The modification method of...

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Abstract

Relating to the technical field of concrete materials, the invention provides a modified high performance concrete and a preparation method thereof. The modified high performance concrete is preparedform the following raw materials: cement, modified broken stone, fly ash, modified zeolite, ultrafine quartz tailing powder, asbestos wool, epoxy resin, citric acid, a toughening agent, a water reducing agent, dimethylformamide, hydroxypropyl-beta-cyclodextrin, and water. The modified high performance concrete provided by the invention has good durability, strength, crack resistance, corrosion resistance, acid and alkali resistance, good internal structure compactness and good impermeability, is high performance concrete, and has long service life.

Description

technical field [0001] The invention relates to the technical field of concrete materials, in particular to a modified high-performance concrete and a preparation method thereof. Background technique [0002] Concrete refers to the cement concrete obtained by using cement as the cementitious material, sand and stone as the aggregate; mixed with water (may contain admixtures and admixtures) in a certain proportion, and stirred. Materials are widely used in the construction field. For concrete, corrosion resistance, acid and alkali resistance, compressive strength and splitting tensile strength are important indicators for judging the quality. In addition, the corrosion resistance, acid and alkali resistance of concrete is also an important factor in evaluating concrete. [0003] Concrete drainage pipes laid underground for a long time are generally used well, and the cost of the pipe itself is very low. However, due to the heavy weight of the pipe, it is difficult to transpo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02
CPCC04B28/02C04B14/02C04B18/08C04B14/047C04B14/06C04B14/40C04B24/281C04B24/06C04B2103/302C04B24/124C04B24/38C04B24/26
Inventor 肖吕阳
Owner ANHUI YUTE CONCRETE STRUCTURE TECH
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