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High-strength concrete and preparation method thereof

A concrete and high-strength technology, applied in the field of building materials, can solve the problems of poor impact resistance, brittle performance, and inability to improve the compressive strength of concrete for a long time, so as to achieve the effect of increasing strength and improving bonding strength

Active Publication Date: 2019-08-23
陕西新意达恒众混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Great progress has been made in the research and development of ordinary concrete. The strength of ordinary concrete has gradually increased and its performance has been continuously improved. However, with the complexity of building structures and the increasing number of super high-rise buildings, ordinary concrete has been unable to meet the construction needs.
[0003] In concrete engineering, concrete cracks are more common. The main reason is that the compressive strength of concrete is too low. In order to prevent cracks in concrete, some glass fibers are added to concrete to improve the compressive capacity of concrete. Glass fibers have good insulation, Good corrosion resistance, but its performance is relatively brittle, and its impact resistance is relatively poor, so it cannot improve the compressive strength of concrete for a long time

Method used

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  • High-strength concrete and preparation method thereof
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Effect test

Embodiment 1

[0030] A preparation method for high-strength concrete, comprising the steps of:

[0031] S1: Weigh a certain amount of 500 parts of river sand, 980 parts of limestone, and 90 parts of water in parts by weight, then mix the river sand and limestone, and add 60% of water to mix and stir evenly;

[0032] S2: In parts by weight, add a certain amount of 260 parts of Portland cement, 200 parts of tailings, 120 parts of ultrafine mineral powder, 40 parts of silica fume, and 60 parts of polycarboxylate superplasticizer to S1 and stir evenly;

[0033] S3: Weigh a certain amount of 80 parts of tea saponin, 30 parts of sodium methylene bismethyl naphthalene sulfonate, and 76 parts of retarder in parts by weight, wherein the retarder includes 30 parts of sodium gluconate and 25 parts of citric acid. 40 parts of boric acid; 60 parts of hydroxypropyl methylcellulose, 80 parts of polypropylene fiber, 50 parts of nano-calcium carbonate and the remaining 40% water are mixed and stirred evenly...

Embodiment 2

[0035] A preparation method for high-strength concrete, comprising the steps of:

[0036] S1: Weigh a certain amount of 650 parts of river sand, 1100 parts of limestone, and 94 parts of water in parts by weight, then mix the river sand and limestone, and add 60% of water to mix and stir evenly;

[0037] S2: In parts by weight, add a certain amount of 320 parts of Portland cement, 240 parts of tailings, 150 parts of ultrafine mineral powder, 45 parts of silica fume and 80 parts of polycarboxylate superplasticizer to S1 and stir evenly;

[0038]S3: Weigh a certain amount of 140 parts of tea saponin, 50 parts of sodium methylene bismethylnaphthalene sulfonate, and 100 parts of retarder in parts by weight, wherein the retarder includes 40 parts of sodium gluconate and 35 parts of citric acid. 50 parts of boric acid, 90 parts of hydroxypropyl methylcellulose, 100 parts of polypropylene fiber, 75 parts of nano-calcium carbonate and the remaining 40% water, mix and stir evenly, then ...

Embodiment 3

[0040] A preparation method for high-strength concrete, comprising the steps of:

[0041] S1: Weigh a certain amount of 800 parts of river sand, 1200 parts of limestone, and 108 parts of water in parts by weight, then mix the river sand and limestone, and add 60% of water to mix and stir evenly;

[0042] S2: In parts by weight, add a certain amount of 360 parts of Portland cement, 280 parts of tailings, 180 parts of ultrafine mineral powder, 50 parts of silica fume, and 100 parts of polycarboxylate superplasticizer to S1 and stir evenly;

[0043] S3: Weigh a certain amount of 200 parts of tea saponin, 70 parts of sodium methylene bismethylnaphthalene sulfonate, and 136 parts of retarder in parts by weight, wherein the retarder includes 50 parts of sodium gluconate and 45 parts of citric acid. 60 parts of boric acid, 110 parts of hydroxypropyl methylcellulose, 120 parts of polypropylene fiber, 100 parts of nano-calcium carbonate and the remaining 40% water, mix and stir evenly,...

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Abstract

The invention discloses high-strength concrete and a preparation method thereof, and belongs to the field of building materials. A key point of a technical solution of the invention is as follows: thehigh-strength concrete comprises the following raw materials, in parts by weight: 260-360 parts of Portland cement, 500-800 parts of river sand, 980-1200 parts of limestone, 200-280 parts of tailings, 120-180 parts of ultra-fine mineral powder, 40-50 parts of silica fume, 80-200 parts of tea saponin, 90-108 parts of water, 30-70 parts of a dispersing agent, 76-136 parts of a retarder, 60-100 parts of a polycarboxylic acid water reducing agent, 60-110 parts of hydroxypropyl methyl cellulose, 80-120 parts of polypropylene fibers, and 50-100 parts of nano calcium carbonate. The method provided by the invention achieves the effect of improving compressive strength of the concrete.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a high-strength concrete and a preparation method thereof. Background technique [0002] In recent years, high strengthening has become one of the trends in the technological development of modern concrete. Great progress has been made in the research and development of ordinary concrete. The strength and performance of ordinary concrete have been gradually improved. However, with the complexity of building structures and the increasing number of super high-rise buildings, ordinary concrete can no longer meet the construction needs. [0003] In concrete engineering, concrete cracks are more common. The main reason is that the compressive strength of concrete is too low. In order to prevent cracks in concrete, some glass fibers are added to concrete to improve the compressive capacity of concrete. Glass fibers have good insulation, It has good corrosion resistance, but its perfo...

Claims

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Application Information

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IPC IPC(8): C04B28/04
CPCC04B28/04C04B2201/50C04B18/12C04B18/146C04B2103/302C04B14/06C04B14/28C04B24/10C04B24/20C04B24/06C04B22/0013C04B24/383C04B16/0633C04B22/10C04B40/0028C04B24/38
Inventor 穆建忠雷永安
Owner 陕西新意达恒众混凝土有限公司