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Alkaline residue-building waste ceramsite and preparing method thereof

A technology of construction waste and alkali slag, which is applied in the field of alkali slag construction waste ceramsite and its preparation, which can solve the problems of storage, long turnover period, unfavorable energy conservation and environmental protection, etc., and achieve the effect of short maintenance period, light weight and improved enterprise income

Inactive Publication Date: 2016-11-30
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

[0020] An alkali slag construction waste ceramsite, which is composed of the following parts by weight: 100 parts of alkali slag, 300 parts of construction waste, 6 parts of silica fume, 18 parts of cement, 5 parts of alkaline activator, 1 part of additive, 25 parts of water share. Alkali 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.

[0021] The preparation method of the above-mentioned alkali slag construction waste ceramsite is carried out according to the following steps:

[0022] (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...

Embodiment 2

[0028] An alkali slag construction waste ceramsite, which is composed of the following parts by weight: 100 parts of alkali slag, 150 parts of construction waste, 2 parts of silica fume, 2.5 parts of alkaline activator, 10 parts of cement, 0.06 parts of additive, 13 parts of water share. Alkali 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.

[0029] The preparation method of the above-mentioned alkali slag construction waste ceramsite is carried out according to the following steps:

[0030] (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...

Embodiment 3

[0036] An alkali slag construction waste ceramsite, which is composed of the following parts by weight: 100 parts of alkali slag, 600 parts of construction waste, 8 parts of silica fume, 8.5 parts of alkaline activator, 25 parts of cement, 1.5 parts of additive, 35 parts of water share. Alkali 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.

[0037] The preparation method of the above-mentioned alkali slag construction waste ceramsite is carried out according to the following steps:

[0038] (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 ...

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Abstract

The invention discloses alkali slag construction waste ceramsite and a preparation method thereof, which belong to the technical field of building material preparation. It consists of the following parts by weight: 100 parts of alkali slag, 150-600 parts of construction waste, 2-8 parts of silica fume, 10-25 parts of cement, 2.5-8.5 parts of alkaline activator, 0.06-1.5 parts of additive, water 13‑35 servings. The alkali slag construction waste ceramsite of the present invention has a simple molding process, does not need high-temperature calcination, is low-carbon, environmentally friendly, and low in energy consumption. Alkali slag construction waste ceramsite is spherical in shape, rough and hard on the surface, with fine pores inside. It has a wide range of raw material sources, light weight, low apparent density, high strength, low shrinkage, carbonization resistance, good durability, high temperature resistance, and heat preservation. Good performance, good waterproof performance and so on.

Description

technical field [0001] The invention belongs to the technical field of building material preparation, and in particular relates to an alkali slag 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): C04B18/02
CPCC04B18/027C04B2201/20C04B2201/50
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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