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Coal gangue construction waste ceramsite and preparation method thereof

A technology of construction waste and coal gangue, applied in the direction of sustainable waste treatment, solid waste management, climate sustainability, etc., can solve the problems of storage, long turnover period, unfavorable energy conservation and environmental protection, etc., and achieve short maintenance period, light weight, The effect of increasing corporate profits

Inactive Publication Date: 2017-01-04
ZHUODA NEW MATERIALS TECH GRP WEIHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its main cementitious material is ≥42.5 grade cement, which is a traditional material, which is not conducive to energy conservation and environmental protection; the fired spherical attapulgite construction waste ceramsite needs 28 days of routine maintenance after granulation, and the storage and turnover period in the production process is too long

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A coal gangue construction waste ceramsite is composed of the following materials in parts by weight: 100 parts of coal gangue, 300 parts of construction waste, 8 parts of silica fume, 4 parts of alkaline activator, 0.5 parts of additive and 18 parts of water. Coal gangue specific surface area ≥ 350cm 2 / g. The alkaline activator is composed of lime, sodium silicate and dihydrate gypsum in a mass ratio of 1:1:1. The additive is compounded by silicone emulsion and hydroxypropyl methylcellulose. Construction waste is composed of waste concrete, waste bricks, waste marble, and waste mortar in a mass ratio of 1:1:1:1.

[0020] The preparation method of the above-mentioned coal gangue construction waste ceramsite is carried out according to the following steps:

[0021] (1) The construction waste is crushed by a large hammer or crusher until the particle size is less than 100mm, and then crushed by a stone crusher until the particle size is less than 0.1mm;

[0022] (2) ...

Embodiment 2

[0027] A coal gangue construction waste ceramsite is composed of the following materials in parts by weight: 100 parts of coal gangue, 150 parts of construction waste, 5 parts of silica fume, 1.5 parts of an alkaline activator, 0.05 parts of an additive and 10 parts of water. Coal gangue specific surface area ≥ 350cm 2 / g. The alkaline activator is composed of lime, sodium silicate and dihydrate gypsum in a mass ratio of 1:1:1. The additive is compounded by silicone emulsion and hydroxypropyl methylcellulose. Construction waste is composed of waste concrete, waste bricks, waste marble, and waste mortar in a mass ratio of 1:1:1:1.

[0028] The preparation method of the above-mentioned coal gangue construction waste ceramsite is carried out according to the following steps:

[0029] (1) The construction waste is crushed by a large hammer or crusher until the particle size is less than 100mm, and then crushed by a stone crusher until the particle size is less than 0.1mm;

[0...

Embodiment 3

[0035] A coal gangue construction waste ceramsite is composed of the following materials in parts by weight: 100 parts of coal gangue, 600 parts of construction waste, 10 parts of silica fume, 8.0 parts of alkaline activator, 1.0 part of additive and 25 parts of water. Coal gangue specific surface area ≥ 350cm 2 / g. The alkaline activator is composed of lime, sodium silicate and dihydrate gypsum in a mass ratio of 1:1:1. The additive is compounded by silicone emulsion and hydroxypropyl methylcellulose. Construction waste is composed of waste concrete, waste bricks, waste marble, and waste mortar in a mass ratio of 1:1:1:1.

[0036] The preparation method of the above-mentioned coal gangue construction waste ceramsite is carried out according to the following steps:

[0037] (1) The construction waste is crushed by a large hammer or crusher until the particle size is less than 100mm, and then crushed by a stone crusher until the particle size is less than 0.1mm;

[0038] (2...

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Abstract

The invention discloses coal gangue construction waste ceramsite and a preparation method thereof, and belongs to the technical field of building material preparation. The coal gangue construction waste ceramsite is prepared from, by weight, 100 parts of coal gangue, 150-600 parts of construction waste, 5-10 parts of silica fume, 1.5-8.0 parts of alkali-activator, 0.05-1.0 part of additive and 10-25 parts of water. According to the coal gangue construction waste ceramsite, the forming process is simple, high-temperature calcination is not needed, low carbon, environmental protection and low energy consumption are achieved, and the ceramsite mainly contains zeotype-shaped hydration products and is low in mass, porous and high in strength. The coal gangue construction waste ceramsite is shaped like a sphere, the surface is rough and hard, the ceramsite is internally provided with tiny pores, and the ceramsite has the advantages of being wide in raw materials source, low in mass, low in apparent density, high in strength, low in contraction, resistant to carbonization, good in durability, resistant to high temperature, good in thermal insulation property, good in waterproof property and the like.

Description

technical field [0001] The invention belongs to the technical field of building material preparation, and in particular relates to a coal gangue construction waste ceramsite and a preparation method thereof. Background technique [0002] With the acceleration of industrialization and urbanization, the construction industry is also developing rapidly. Accompanied by this is the increasing amount of construction waste. A large amount of construction waste not only occupies the land, but also brings serious pollution to the human living environment. According to statistics, my country will add more than 40 million tons of construction waste every year, and the amount of construction waste has accounted for more than 1 / 3 of the total urban waste, of which concrete construction waste has accounted for more than 40% of construction waste. This phenomenon has been widely concerned by the whole society. The long-term stockpiling of construction waste not only wastes land resources,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B18/02C04B18/12C04B18/16C04B18/14
CPCC04B18/027C04B18/021C04B18/12C04B18/16C04B18/146C04B22/064C04B22/08C04B22/143C04B24/42C04B24/383Y02W30/91
Inventor 杨卓舒张军华段晓马春羽史红彬蔡世楷
Owner ZHUODA NEW MATERIALS TECH GRP WEIHAI CO LTD
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