Concrete wall based on solid waste residues in iron and steel industry and preparation method of concrete wall

A technology for solid waste and concrete walls, which is applied in the treatment of walls, building materials, and building components, etc. It can solve the problems of insulation and anti-seepage materials falling off, increasing maintenance and repair costs, and not using them well, so as to reduce difficulty and eliminate Effects of Building Occupancy Costs

Pending Publication Date: 2022-02-01
SHOUGANG SHUICHENG IRON & STEEL GRP SAIDE CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Iron and steel industry solid waste refers to the solid waste generated in the process of iron and steel smelting, including blast furnace slag. Although the products of the existing blast furnace slag can be used in the construction field, combined with the development of modern construction technology, especially It is the field of templated building concrete prefabricated walls, and there is no good way to use it
[0003] Furthermore, modern architectural concrete prefabricated walls need to be covered with thermal insulation and anti-seepage materials on the outer surface after construction. This way of covering thermal insulation and sound insulation materials twice will increase the construction difficulty of the building construction. The thermal insulation and anti-seepage materials on the wall surface also have the risk of falling off; along with the falling off, repairs are required, which increases the cost of maintenance and repairs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A concrete wall based on solid waste slag from the iron and steel industry, including a load-bearing layer and an insulating layer, the load-bearing layer is measured in parts by mass, and its raw materials include 20 parts of cement, 8 parts of fly ash, 0.03 parts of thickener, and 20 parts of expanded slag 1 part, 1 part of water reducer, 20 parts of water, 3 parts of reinforced fiber;

[0028] The insulation layer is measured by mass fraction, and its raw materials include 20 parts of cement, 8 parts of fly ash, 0.03 parts of thickener, 20 parts of expanded slag, 1 part of water reducing agent, 20 parts of water, 4 parts of expansion agent, and reinforced fiber 3 parts, 10 parts of slag wool.

[0029] The thickener is polyacrylamide.

[0030] The expanded slag is produced by quenching blast furnace slag with cooling water.

[0031] The expansion agent is a calcium sulfate expansion agent, specifically an alunite expansion agent.

[0032] The reinforcing fibers in ...

Embodiment 2

[0035] Based on above-mentioned embodiment 1, a kind of preparation method of the concrete wall based on iron and steel industry solid waste slag, comprises the steps:

[0036] S1. Preparation and mixing of load-bearing layer raw materials: After the raw materials required for the load-bearing layer are measured in parts by mass, they are added to the concrete mixing tank and stirred at the same time. At this time, the concrete material for the load-bearing layer is obtained, and the stirring state is maintained at a specific speed. ;

[0037] S2. Preparation and mixing of raw materials for the thermal insulation layer: After measuring the raw materials required for the thermal insulation layer in parts by mass, they are added to the concrete mixing tank and stirred at the same time. At this time, the concrete material for the thermal insulation layer is obtained, and the stirring state is maintained at a specific speed ;

[0038] S3. Pour the concrete material of the load-be...

Embodiment 3

[0044] A concrete wall based on solid waste slag from the iron and steel industry, including a load-bearing layer and an insulating layer, the load-bearing layer is measured in parts by mass, and its raw materials include 35 parts of cement, 18 parts of fly ash, 0.05 parts of thickener, and 35 parts of expanded slag 4 parts of water reducer, 35 parts of water, 6 parts of reinforced fiber;

[0045] The insulation layer is measured by mass fraction, and its raw materials include 35 parts of cement, 18 parts of fly ash, 0.05 parts of thickener, 35 parts of expanded slag, 4 parts of water reducing agent, 35 parts of water, 8 parts of expansion agent, reinforced fiber 6 parts, 15 parts of slag wool.

[0046] The thickener is polyvinyl alcohol.

[0047] The expanded slag is produced by quenching blast furnace slag with cooling water.

[0048] The expansion agent is a calcium sulfate expansion agent, specifically a mixture of alumite expansion agent, CSA expansion agent and U-type ...

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PUM

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Abstract

The invention discloses a concrete wall based on solid waste residues in iron and steel industry and a preparation method of the concrete wall. The concrete wall comprises a bearing layer and a heat preservation layer, and the bearing layer is prepared from, by mass, cement, fly ash, a thickening agent, expanded slag, a water reducing agent, water and reinforced fiber. The heat preservation layer is prepared from the following raw materials in parts by mass: cement, fly ash, a thickening agent, expanded slag, a water reducing agent, water, an expanding agent, reinforced fibers and slag wool. In the application process, under the condition that the expanded slag replaces aggregate in traditional concrete raw materials and mineral wool is added into the heat preservation layer, the expanded slag is made of blast furnace slag, and the mineral wool is made of blast furnace slag, so that indirect treatment and utilization of the blast furnace slag in the solid waste residues in the steel industry are achieved, in the application process, the requirements of wall heat preservation, water seepage prevention and sound insulation in building construction can be met, and application and popularization are facilitated.

Description

technical field [0001] The invention relates to the technical field of iron and steel industry solid waste utilization, in particular to a concrete wall based on the iron and steel industry solid waste and a preparation method thereof. Background technique [0002] Iron and steel industry solid waste refers to the solid waste generated in the process of iron and steel smelting, including blast furnace slag. Although the products of the existing blast furnace slag can be used in the construction field, combined with the development of modern construction technology, especially It is the field of templated building concrete prefabricated walls, and there is no good way to use it. [0003] Furthermore, modern architectural concrete prefabricated walls need to be covered with thermal insulation and anti-seepage materials on the outer surface after construction. This way of covering thermal insulation and sound insulation materials twice will increase the construction difficulty ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02E04B2/84E04G21/02C04B111/27C04B111/52
CPCC04B28/02E04B2/84E04G21/02C04B2111/52C04B2111/27C04B2111/00612C04B18/08C04B24/2652C04B18/141C04B14/48C04B2103/302C04B22/142C04B14/386C04B14/42C04B16/0633C04B14/46
Inventor 熊家强袁仁杰徐章颖常磊石磊齐晶
Owner SHOUGANG SHUICHENG IRON & STEEL GRP SAIDE CONSTR CO LTD
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