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Concrete capable of suppressing release of soda residue chloride

A chloride and concrete technology, 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 shortening setting time.

Active Publication Date: 2014-10-01
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 uniformly 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 ...

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Abstract

The invention relates to concrete capable of suppressing release of soda residue chloride. The concrete is prepared by the following raw materials in parts by weight: 100 parts of cement, 20-60 parts of ceramsite, 40-60 parts of fly ash, 30-40 parts of fine sand, 40-60 parts of slag powder and 25-45 parts of water. The concrete is characterized in that the ceramsite adopts a three-layer composite structure, and comprises a ball core, a middle foaming layer and a shell layer from inside to outside; the core layer comprises soda residue, glass dust, fly ash and an alkali exciting agent; the middle foaming layer comprises glass dust, slate and methyl cellulose ether; the shell layer comprises cement, glass dust, fly ash, natural zeolite and the alkali exciting agent. The ball core of the ceramsite comprises substantial soda residue; pollution of the soda residue to environment is reduced; meanwhile, manufacture of the ceramsite is conducted in normal temperature environment completely without high-temperature sintering process; energy is saved; pollution to environment during the sintering process is reduced.

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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IPC IPC(8): C04B28/00C04B18/04C04B38/00
CPCY02W30/91
Inventor 张成
Owner 盐城市兆丰混凝土有限公司
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