Solid waste foam concrete and preparation method thereof

A foamed concrete and cementitious material technology, which is applied in the field of engineering materials to achieve the effects of enhancing strength, reducing CO2 emissions and not polluting the environment

Inactive Publication Date: 2018-09-11
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the defect in the prior art that using industrial solid waste to produce concr

Method used

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  • Solid waste foam concrete and preparation method thereof
  • Solid waste foam concrete and preparation method thereof
  • Solid waste foam concrete and preparation method thereof

Examples

Experimental program
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Embodiment 1

[0035] This embodiment provides a cementitious material, and its raw material composition includes 328g of steel slag, 492g of blast furnace water-quenched slag powder, and 180g of desulfurized gypsum.

[0036] The gelling material provided in this embodiment is prepared by the following method:

[0037] Grind 328g steel slag to a specific surface area of ​​280m2 using a ball mill 2 / kg, and then grind together with 492g blast furnace water-quenched slag powder until the specific surface area is 450m 2 / kg; Take 180g of desulfurized gypsum and mix with the above materials to obtain gelled material.

[0038] The present embodiment also provides a kind of foam concrete, and its raw material composition comprises above-mentioned cementitious material, also comprises 5g superplasticizer, 300g water and 100g foam (the foam utilizes foaming system to active foaming agent animal protein The agent is fully foamed).

[0039] The preparation method of the foamed concrete provided by ...

Embodiment 2

[0042] This embodiment provides a cementitious material, and its raw material composition includes 150g of steel slag, 680g of blast furnace water-quenched slag powder, and 170g of desulfurized gypsum.

[0043] The gelling material provided in this embodiment is prepared by the following method:

[0044] Grind 160g of steel slag with a ball mill until the specific surface area is 300m 2 / kg, and then grind together with 640g blast furnace water-quenched slag powder until the specific surface area is 650m 2 / kg; Take 200g of desulfurized gypsum and mix with the above materials to obtain cementitious materials.

[0045] This embodiment also provides a foam concrete, the raw material composition of which includes the above-mentioned cementitious material, and also includes 8g of high-efficiency water reducer, 250g of water and 150g of foam.

[0046] The foam concrete that present embodiment provides, preparation method is as follows:

[0047]Add 8g of high-efficiency water red...

Embodiment 3

[0049] This embodiment provides a cementitious material, and its raw material composition includes 264g of steel slag, 536g of blast furnace water-quenched slag powder, and 200g of desulfurized gypsum.

[0050] The gelling material provided in this embodiment is prepared by the following method:

[0051] Grind 264g steel slag to a specific surface area of ​​350m2 using a ball mill 2 / kg, and then grind together with 536g blast furnace water-quenched slag powder until the specific surface area is 700m 2 / kg; Take 200g of desulfurized gypsum and mix with the above materials to obtain cementitious materials.

[0052] This embodiment also provides a foam concrete, the raw material composition of which includes the above-mentioned cementitious material, and also includes 10g of high-efficiency water reducer, 200g of water and 200g of foam.

[0053] The foam concrete that present embodiment provides, preparation method is as follows:

[0054] Add 10g of high-efficiency water redu...

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Abstract

The invention relates to a solid waste foam concrete and a preparation method thereof, belongs to the technical field of engineering materials, and provides a preparation method for a noise reductionfoam concrete. According to a cementitious material, solid waste material steel slag, slag powder and desulfurized gypsum are firstly adopted as main components, and though double synergy optimizationbetween of particle size and the activity of the steel slag, slag and desulfurized gypsum without adding cement clinker or alkali-activator, the absorption of a large proportion of industrial solid waste is achieved. The preparation method for the foam concrete can save the milling time, reduce the energy consumption and improve the production efficiency by adopting a step mixing grinding technology mixing the ball mill and the segment mill; pores in the concrete can be further communicated by adopting high-temperature wet curing, while high compressive strength is kept, a high noise reduction coefficient is obtained, so that the noise reduction coefficient NRC exceeds 0.6, and the compressive strength can reach 10MPa, the concrete can be used as a wall sound absorbing structural materialin a noise reduction project, and the problems that traditional foam concretes are not high in strength, and the pores are not communicated are solved.

Description

technical field [0001] The invention belongs to the technical field of engineering materials and provides foam concrete and a preparation method thereof. Background technique [0002] With the rapid development of China's steel industry, the discharge of industrial waste such as steel slag and slag is increasing year by year. my country's tailings have accumulated more than 12 billion tons, and the annual output has reached 1.3 billion tons, accounting for more than 50% of the world's tailings output, while the comprehensive utilization rate of steel slag is only 14%, and the vast majority of industrial waste has not been synthesized. use. A large amount of industrial waste not only occupies land, wastes resources, pollutes the environment, but also poses serious safety hazards. At present, the utilization value and economic benefits of making building materials and functional materials from industrial waste are far from being fully utilized. [0003] Foamed concrete is a ...

Claims

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Application Information

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IPC IPC(8): C04B38/10C04B28/14C04B11/26
CPCC04B11/264C04B28/144C04B2111/40C04B2111/52C04B2201/50C04B18/142C04B18/141C04B2103/302C04B38/106C04B38/0067
Inventor 刘晓圣姬军聂京凯倪文李靖袁建国王斌陈新韩钰樊超田一王广克何强侯东
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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