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High-intensity concrete admixture and preparation method and application thereof

A high-strength concrete and admixture technology, which is applied in the field of building materials, can solve the problems of reduced blast furnace slag volume and unsatisfactory effects, and achieve the effects of improving compressive strength, improving grinding efficiency, improving grinding efficiency and mixing effect

Active Publication Date: 2017-05-10
柳州市大星混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effect of simply using blast furnace slag to replace the proportion of cement in concrete is not satisfactory, and due to the improvement of modern mineral processing and ironmaking technology, the amount of blast furnace slag produced per ton of pig iron has dropped significantly

Method used

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  • High-intensity concrete admixture and preparation method and application thereof
  • High-intensity concrete admixture and preparation method and application thereof
  • High-intensity concrete admixture and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A high-strength concrete admixture is made of the following raw materials in parts by weight: 200 parts of blast furnace slag, 35 parts of edible fungus slag, 10 parts of gypsum, 10 parts of gneiss, 25 parts of shale, 30 parts of activated carbon slag, Attapulgite 20 parts, pine ash 15 parts, polypropylene fiber 2 parts, corn silk 0.2 parts, admixture 1 part;

[0031] The admixture is composed of glutinous rice glue, octenyl succinic esterified starch, isinglass and glucomannan in a weight ratio of

[0032] 500:20:1:5 composition;

[0033] The blast furnace slag is finely ground granulated blast furnace slag powder with a Blaine specific surface area of ​​500-600m 2 / kg.

[0034] Wherein, the edible fungus residue is Flammulina velutipes residue.

[0035] Wherein, the pine and cypress ash is obtained by using a ball mill to pulverize the ashes remaining after burning pine branches and cypress branches according to a weight ratio of 1:1 to 400-500 mesh.

[0036] Wher...

Embodiment 2

[0045] A high-strength concrete admixture is made of the following raw materials in parts by weight: 200 parts of blast furnace slag, 45 parts of edible fungus slag, 15 parts of gypsum, 20 parts of gneiss, 35 parts of shale, 40 parts of activated carbon slag, 30 parts of attapulgite, 18 parts of pine ash, 4 parts of polypropylene fiber, 0.5 part of corn silk, 3 parts of admixture;

[0046]The admixture is composed of glutinous rice glue, octenyl succinic esterified starch, isinglass and glucomannan in a weight ratio of 500:20:3:5;

[0047] The blast furnace slag is finely ground granulated blast furnace slag powder with a Blaine specific surface area of ​​500-600m 2 / kg.

[0048] Wherein, the edible fungus residue is Flammulina velutipes residue.

[0049] Wherein, the pine and cypress ash is obtained by using a ball mill to pulverize the ashes remaining after burning pine branches and cypress branches according to a weight ratio of 1:1 to 400-500 mesh.

[0050] Wherein, the...

Embodiment 3

[0053] A high-strength concrete admixture is made of the following raw materials in parts by weight: 200 parts of blast furnace slag, 40 parts of edible fungus slag, 13 parts of gypsum, 15 parts of gneiss, 30 parts of shale, 35 parts of activated carbon slag, 25 parts of attapulgite, 17 parts of pine ash, 3 parts of polypropylene fiber, 0.3 part of corn silk, 2 parts of admixture;

[0054] The admixture is composed of glutinous rice glue, octenyl succinic esterified starch, isinglass and glucomannan in a weight ratio of 500:20:2:5;

[0055] The blast furnace slag is finely ground granulated blast furnace slag powder with a Blaine specific surface area of ​​500-600m 2 / kg.

[0056] Wherein, the edible fungus residue is Flammulina velutipes residue.

[0057] Wherein, the pine and cypress ash is obtained by using a ball mill to pulverize the ashes remaining after burning pine branches and cypress branches according to a weight ratio of 1:1 to 400-500 mesh.

[0058] Wherein, th...

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Abstract

The invention discloses a high-intensity concrete admixture. The high-intensity concrete admixture is prepared from the following raw materials in parts by weight: blast-furnace slag 200 parts, edible fungi residues 35-45 parts, gypsum 10-15 parts, gneiss 10-20 parts, shale 25-35 parts, activated carbon slag 30-40 parts, attapulgite 20-30 parts, pine and cypress ash 15-18 parts, polypropylene fibers 2-4 parts, corn stigma 0.2-0.5 part and an additive 1-3 parts. The additive consists of glutinous rice glue, starch octenylsuccinate, fish glue and glucomannan according to the weight ratio of 500: 20: 1-3: 5. The blast-furnace slag is ground granulated blast-furnace slag powder, and the Brinell specific surface area is 500-600 m(2) / kg. The high-intensity concrete admixture has the effects that the compressive property of the concrete is enhanced, the brittleness of the concrete is reduced, and the working preforamnce of the high-intensity concrete is improved.

Description

technical field [0001] The invention relates to the field of building materials. More specifically, the present invention relates to a high-strength concrete admixture and its preparation method and application. Background technique [0002] In the production and preparation of high-strength concrete, the amount of cement is often high, the heat of hydration is large, and the temperature stress and self-shrinkage bring hidden dangers to the cracking of high-strength concrete. The research results at home and abroad show that mineral admixtures can effectively reduce the high-strength concrete. The brittleness coefficient of high-strength concrete is improved to improve its crack resistance, and the use of mineral admixtures in high-strength concrete to replace cement is an effective means to alleviate this problem. [0003] Blast furnace slag is a waste slag of silicate material discharged from the blast furnace when smelting pig iron. Blast furnace slag is a fusible mixtu...

Claims

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Application Information

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IPC IPC(8): C04B24/38
CPCC04B40/0039C04B18/142C04B18/248C04B22/143C04B14/108C04B18/0427C04B14/102C04B18/101C04B16/0633C04B24/38C04B14/04C04B24/24
Inventor 方洁梁祖锋李天强梁绍焕
Owner 柳州市大星混凝土有限公司
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