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A method of making foamed bricks from waste building materials

A technology of building materials and foamed bricks, applied in the field of building materials, can solve the problems of limited sources of fly ash and high production costs, and achieve remarkable energy saving and environmental protection, remarkable effect and low cost

Inactive Publication Date: 2011-12-14
XIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method for making foamed bricks by using waste building materials, which makes full use of waste building materials and solves the problems of limited source of fly ash and high production cost in existing foamed wall materials

Method used

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  • A method of making foamed bricks from waste building materials

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] According to the above-mentioned method steps of the present invention, the following components and contents are selected to prepare foamed bricks:

[0023] 100 grams of mixed materials include: 57 grams of waste clay brick slag, 0.5 grams of lignosulfonate as the concrete water reducing agent in the additive, 3.0 grams of sodium chloride as the early strength agent, and 0.1 grams of lithium chloride as the volume stabilizer; 39.4 grams of cement; the foaming agent is mixed with K12, Span and gelatin at a ratio of 4:4.5:1, and mixed with water at high speed to form a foam; it is mixed by adding 40 ml of foam to every 100 grams of the mixture, poured in the yard Water conservation time is 15 o'clock.

Embodiment 2

[0025] According to the above-mentioned method steps of the present invention, the following components and contents are selected to prepare foamed bricks:

[0026] 100 grams of mixed materials include: 75 grams of waste concrete slag, 0.5 grams of naphthalene sulfonate as the concrete water reducer in the additive, 2.3 grams of sodium sulfate as the early strength agent, 0.2 grams of lithium sulfate as the volume stabilizer; 22 grams of cement ; The foaming agent is mixed with K12, Span and gelatin according to the ratio of 5:3:0.5, and mixed with water at a high speed to form a foam; add 45 ml of foam to every 100 grams of the mixture for mixing, watering and curing time in the yard at 10 o'clock.

Embodiment 3

[0028] According to the above-mentioned method steps of the present invention, the following components and contents are selected to prepare foamed bricks:

[0029] 100 grams of mixed materials include: 70 grams of waste ceramic chips, 0.9 grams of sulfonated melamine resin as the concrete water reducing agent in the additive, 1.5 grams of potassium chloride as the early strength agent, 0.1 grams of lithium sulfate as the volume stabilizer; 27.5 grams of cement grams; the foaming agent is mixed with LAS, Span and gelatin according to the ratio of 6:4.5:1, and mixed with water at high speed to prepare a foam; add 45 ml of foam to every 100 grams of the mixture for mixing, watering and curing in the yard The time is 15 o'clock.

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Abstract

The invention relates to a method for making foamed bricks from waste building materials. The method is implemented according to the following steps: 1) Mixing: firstly weigh 57% to 75% of waste building material particles, 22% to 40% of cement, 1.5% to 3.8% of additives, the total mass is 100%, stir and mix with the additional water; 2) Foam making: Stir the foaming agent and an appropriate amount of water at a high speed to obtain a stable and uniform foam; 3) Mixing: According to the proportion of adding 40-60 ml of foam per 100 grams of the mixture, the foam is passed into the mixture, stirred at a high speed to make it quickly and evenly mixed to obtain a foamed billet; 4) Injection molding: the obtained foamed billet It is injection molded in a mold, watered and cured for 10 to 15 hours in the storage yard, and the finished foam brick is obtained after air drying. By using the method of the invention, the abandoned building materials after earthquake or demolition can be effectively utilized to produce low-cost, high-performance wall materials with thermal insulation, sound insulation, fire prevention and shock resistance.

Description

technical field [0001] The invention belongs to the technical field of building materials, and relates to a method for making foamed bricks from waste building materials. Background technique [0002] The room temperature non-burning composite foaming wall material is to use the composite foaming liquid and the solid industrial waste powder (cementation material) after superfine grinding to stir and mix to obtain small and closed independent micropores, thereby obtaining a new As a building material, its thermal insulation, sound insulation, fire prevention, strength and processing performance have considerable advantages over traditional crafts. However, the main raw materials used in the prior art are cement, fine river sand, and fly ash, among which cement accounts for 40% to 50%, and only industrial waste such as fly ash can be used, and the source of fly ash is limited. The LS~3 foaming agent adopted at the same time is protein, and the price is relatively high, which ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B38/00C04B28/00C04B18/16
CPCC04B2111/52C04B28/02C04B2111/28Y02W30/91C04B18/16C04B20/008C04B20/026C04B24/14C04B24/24C04B38/106C04B2103/14C04B2103/302C04B2103/402
Inventor 梁振海刘广钧于永祥张会恩
Owner XIAN UNIV OF TECH