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Punching and folding resistance concrete

A technology of concrete and punching, which is applied in the field of concrete, can solve the problems of low impact resistance and crack resistance, and achieve the effects of increasing impact resistance and toughness, reducing water consumption, and increasing impact toughness

Inactive Publication Date: 2016-11-23
蚌埠市方阵商品混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for concrete used in high load-bearing and high-impact environments, the impact resistance and crack resistance of simple concrete materials are low. Therefore, it is necessary to provide a concrete with good mechanical properties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of anti-shock concrete, its raw materials include by weight: 100 parts of ordinary Portland cement, 160 parts of river sand, 300 parts of gravel, 15 parts of mineral powder, 25 parts of silica fume, 2.5 parts of fiber, 1.5 parts of acrylate emulsion 3 parts, 3 parts of retarding superplasticizer, 3 parts of cellulose ether, 26 parts of water;

[0020] Among them, the raw materials of the fiber are: steel fiber and modified polypropylene fiber.

Embodiment 2

[0022] A kind of anti-shock concrete, its raw materials include by weight: 100 parts of ordinary Portland cement, 140 parts of river sand, 350 parts of gravel, 10 parts of mineral powder, 30 parts of silica fume, 2 parts of fiber, 2 parts of acrylate emulsion 2 parts, 2 parts of retarding superplasticizer, 4 parts of cellulose ether, 24 parts of water;

[0023] Among them, the raw materials of the fibers are: steel fibers and modified polypropylene fibers, wherein the weight ratio of the steel fibers and the modified polypropylene fibers is 4:1, and the lengths of the steel fibers and the modified polypropylene fibers are both 15mm.

Embodiment 3

[0025] A kind of anti-shock concrete, its raw materials include by weight: 100 parts of ordinary Portland cement, 180 parts of river sand, 250 parts of crushed stone, 20 parts of mineral powder, 20 parts of silica fume, 3 parts of fiber, and 1 part of acrylate emulsion 4 parts, 4 parts of retarding superplasticizer, 2 parts of cellulose ether, 28 parts of water;

[0026] Among them, the raw materials of the fibers are: steel fibers and modified polypropylene fibers, wherein the weight ratio of the steel fibers and the modified polypropylene fibers is 2:3, and the lengths of the steel fibers and the modified polypropylene fibers are both 10 mm;

[0027] The steel fiber must be polished, washed with reduced liquid, and then dried with hot air at a temperature of 50°C;

[0028] During the preparation of the modified polypropylene fiber, the polypropylene fiber was added to the ethanol solution with a mass fraction of 2wt% γ-aminopropyltriethoxysilane and mixed evenly, the tempera...

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PUM

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Abstract

The invention discloses punching and folding resistance concrete which comprises raw materials in parts by weight, 100 parts of ordinary portland cement, 140-180 parts of river sand, 250-350 parts of crushed stone, 10-20 parts of mineral powder, 20-30 parts of silicon ash, 2-3 parts of fibers, 1-2 parts of acrylate emulsion, 2-4 parts of retarding and water reducing agents, 2-4 parts of cellulose ether and 2-8 parts of water. The raw materials of the fibers include steel fibers and modified polypropylene fibers. The punching and folding resistance concrete is good in mechanical property and high in punching and folding resistance.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to anti-shock concrete. Background technique [0002] At present, concrete is the most important building structure material, which is widely used in roads, construction, decoration, heavy industry and other fields. However, for concrete used in high-load-bearing and high-impact environments, pure concrete materials have low impact resistance and crack resistance. Therefore, it is necessary to provide a concrete with good mechanical properties. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention proposes a shock-resistant concrete, which has good mechanical properties and high shock-resistant performance. [0004] A kind of anti-shock concrete proposed by the present invention, its raw material comprises by weight: 100 parts of ordinary Portland cement, 140-180 parts of river sand, 250-350 parts of grave...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B20/10
CPCC04B28/04C04B20/1022C04B14/068C04B18/12C04B18/146C04B14/48C04B16/0633C04B24/2641C04B2103/302C04B2103/22C04B24/383C04B20/0048
Inventor 朱宏庆
Owner 蚌埠市方阵商品混凝土有限公司
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