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A kind of concrete that can inhibit the release of chloride from alkali slag

A technology for concrete and alkali slag, applied in the field of concrete, can solve problems such as corrosion of steel bars and hidden dangers of engineering quality, and achieve the effects of saving energy, reducing pollution and improving physical and mechanical properties

Active Publication Date: 2016-11-30
盐城市兆丰混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention designs a concrete that can inhibit the release of alkali slag chlorides, and the technical problem it solves is that the concrete prepared by using alkali slag in the prior art, but the chlorides in it will corrode the steel bars, which will bring quality to the project. Hidden dangers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Step 1, making the ball core;

[0031] First add 300g alkaline activator to the mixture of dry material 400g alkali slag, 300g glass powder, 100g natural zeolite and 300g fly ash according to the proportion, 6g potassium hydroxide and 294g water in the alkaline activator, stir, and then pass Knead into multiple balls with a diameter of 7-12mm by machine or manually, and form a core after standing for 24-48 hours;

[0032] Step 2. A middle foam layer is evenly formed on the surface of the ball core; the dry material of the middle foam layer is uniformly mixed with 600g of glass powder, 200g of shale and 30g of methyl cellulose ether.

[0033] Then put the ball core prepared in step 1 into the ball forming tray equipped with the dry material of the intermediate foam layer, and start the ball forming tray so that the dry material of the middle foam layer completely wraps the surface of the core to obtain an intermediate product, and the intermediate foam The thickness of ...

Embodiment 2

[0037] Step 1, making the ball core;

[0038] First add 300g alkaline activator to the mixture of dry material 400g alkali slag, 300g glass powder, 100g natural zeolite and 300g fly ash according to the proportion, 6g potassium hydroxide and 294g water in the alkaline activator, stir, and then pass Knead into multiple balls with a diameter of 7-12mm by machine or manually, and form a core after standing for 24-48 hours;

[0039] Step 2. A middle foam layer is evenly formed on the surface of the ball core; the dry material of the middle foam layer is uniformly mixed with 600g of glass powder, 200g of shale and 30g of methyl cellulose ether.

[0040] Then put the ball core prepared in step 1 into the ball forming tray equipped with the dry material of the intermediate foam layer, and start the ball forming tray so that the dry material of the middle foam layer completely wraps the surface of the core to obtain an intermediate product, and the intermediate foam The thickness of ...

Embodiment 3

[0044] Step 1, making the ball core;

[0045] First add 300g alkaline activator to the mixture of dry material 400g alkali slag, 300g glass powder, 100g natural zeolite and 300g fly ash according to the proportion, 6g potassium hydroxide and 294g water in the alkaline activator, stir, and then pass Knead into multiple balls with a diameter of 7-12mm by machine or manually, and form a core after standing for 24-48 hours;

[0046] Step 2. A middle foam layer is evenly formed on the surface of the ball core; the dry material of the middle foam layer is uniformly mixed with 600g of glass powder, 200g of shale and 30g of methyl cellulose ether.

[0047] Then put the ball core prepared in step 1 into the ball forming tray equipped with the dry material of the intermediate foam layer, and start the ball forming tray so that the dry material of the middle foam layer completely wraps the surface of the core to obtain an intermediate product, and the intermediate foam The thickness of ...

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Abstract

The invention relates to a concrete capable of inhibiting the release of chlorides from alkali residues. 40-60 parts of slag powder and 25-45 parts of water, characterized in that: the ceramsite is in a three-layer composite structure, and from inside to outside are respectively a spherical core, a middle foam layer and a hard shell layer, and the core layer includes alkali slag, It consists of glass powder, fly ash and alkaline activator; the intermediate foam layer is composed of glass powder, shale and methyl cellulose ether, and the hard shell layer is composed of cement, glass powder, fly ash, natural zeolite and alkaline activator agent composition. The core of the ceramsite used in the present invention contains a large amount of alkali slag, which reduces the pollution of the alkali slag to the environment, and at the same time, the production of the ceramsite is carried out in a normal temperature environment, and the high-temperature sintering process is no longer required, saving energy and reducing the sintering process. pollution to the environment.

Description

technical field [0001] The invention relates to a concrete, in particular to a concrete capable of limiting the release of alkali slag chloride. Background technique [0002] Ceramsite is ceramic particles. Most of the appearance characteristics of ceramsite are round or elliptical spheres, but there are also some gravel-like ceramsites that are not round or elliptical spheres, but irregular gravel. The shape of ceramsite varies from process to process. Its surface is a hard shell, which is pottery or enamel, which has the function of water-proof and air-retaining, and gives ceramsite high strength. The appearance and color of ceramsite vary with the raw materials and techniques used. The color of roasted ceramsite is mostly dark red and ocher red, and some special varieties are gray-yellow, gray-black, gray-white, blue-gray, etc. [0003] Alkali slag is the waste slag discharged during the process of making alkali by the ammonia-soda method in industry. Because it conta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B18/04C04B38/00
Inventor 张成
Owner 盐城市兆丰混凝土有限公司