Ceramsite with slag and building waste and method for preparing ceramsite

A construction waste and slag technology, applied in ceramic products, manufacturing tools, ceramic molding machines, etc., can solve the problems of unfavorable energy saving, environmental protection, storage, long turnover period, etc., and achieve the effect of light weight, short maintenance period and good durability

Inactive Publication Date: 2017-01-25
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 slag construction waste ceramsite, which is composed of the following parts by weight: 100 parts of slag, 450 parts of construction waste, 5 parts of silica fume, 3.0 parts of alkaline activator, 0.3 parts of additives and 16 parts of water. Slag 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 slag 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) Add the materials into the mixe...

Embodiment 2

[0027] A slag construction waste ceramsite, which is composed of the following materials in parts by weight: 100 parts of slag, 150 parts of construction waste, 2 parts of silica fume, 1.0 part of an alkaline activator, 0.05 parts of an additive, and 10 parts of water. Slag 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 slag 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;

[0030] (2) Add the mate...

Embodiment 3

[0035] A slag construction waste ceramsite is composed of the following parts by weight: 100 parts of slag, 700 parts of construction waste, 8 parts of silica fume, 5.0 parts of alkaline activator, 0.8 part of additive and 25 parts of water. Slag 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 slag 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) Add the materials into the mixer in the ...

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Abstract

The invention belongs to the field of technologies for preparing building materials, and discloses ceramsite with slag and building waste and a method for preparing the ceramsite. The ceramsite comprises, by weight, 100 parts of the slag, 150-170 parts of the building waste, 2-8 parts of silica fume, 1.0-5.0 parts of alkali activators, 0.05-0.8 part of additives and 10-25 parts of water. The ceramsite with the slag and the building waste and the method have the advantages that processes for forming the ceramsite are simple, high-temperature calcination can be omitted, and the ceramsite is low-carbon, is environmentally friendly, is low in energy consumption, is mostly filled with zeolite-like hydration products, is light and porous and is high in strength; the ceramsite with the slag and the building waste is in the shape of a round sphere and has rough and hard surfaces, tiny air holes are formed in the ceramsite, raw materials for the ceramsite can come from wide sources, the ceramsite is light, carbonization-resistant and high-temperature-resistant and is low in apparent density and shrinkage, high in strength and good in durability, heat-insulation property and 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 ceramsite of slag construction waste 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, is pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B38/00B28B1/00
CPCC04B28/006B28B1/004C04B38/00C04B2111/00017C04B2111/40C04B2201/20C04B2201/50C04B38/0067C04B18/146C04B18/167C04B22/064C04B22/08C04B22/143C04B24/383C04B24/42
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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