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Preparation method for high-intensity foam glass

A foam glass and high-strength technology, which is applied in the field of preparation of high-strength foam glass, can solve problems such as difficult guarantee of effect, low flexural strength, and complicated application procedures, and achieve good chemical stability, wide application range, and excellent mechanical properties Effect

Inactive Publication Date: 2011-05-18
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The foam glass prepared by this method has small pore size and low flexural strength
CN200946127Y discloses a kind of foam glass sandwiched with wire mesh, which solves the problems of low mechanical strength of foam glass, inability to produce large-format products, complicated use procedures, difficult construction quality and effect guarantee
However, the foamed glass prepared by this method has a high density and a high foaming temperature.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: first clean the waste and old flat glass, and ball mill it into glass powder below 300 mesh after drying; then 91% cullet powder, 1.5% CaCO 3 , 3.5% Borax, 2.5% NaNO 3 , 1.5% zirconium-containing alkali-resistant glass fibers with a diameter of 0.005 to 2 mm and a length of 0.1 to 100 mm are added to a ball mill jar and mixed for 20 minutes to obtain a batch, and the batch is added to a heat-resistant steel mold and Move it into a foaming furnace and burn it according to the following process; in the preheating stage, the temperature is raised from room temperature to 400°C at a rate of 10°C / min, and then kept for 30 minutes; in the foaming stage, the temperature is raised to 780°C at a rate of 15°C / min ; In the bubble stabilization stage, keep warm at a constant temperature of 780°C for 15 minutes; in the rapid cooling stage, the cooling rate is 15°C / min, and the cooling time is 550°C, and the constant temperature time is 30 minutes; Get foam glass. The...

Embodiment 2

[0018] Embodiment 2: first clean the waste flat glass, and ball mill it into glass powder below 300 mesh after drying; then mix 90% cullet powder with 1.5% CaCO 3 , 3.5% Borax, 2.5% NaNO 3 , 2.5% of zirconium-containing alkali-resistant glass fibers with a diameter of 0.005 to 2 mm and a length of 0.1 to 100 mm are added to a ball mill jar and mixed for 10 minutes to obtain a batch, and the batch is added to a heat-resistant steel mold and Move it into the foaming furnace and burn it according to the following process; in the preheating stage, the temperature is raised from room temperature to 400°C at a rate of 10°C / min, and then kept for 30 minutes; in the foaming stage, the temperature is raised to 750°C at a rate of 20°C / min ; In the bubble stabilization stage, hold at a constant temperature of 750°C for 20 minutes; in the rapid cooling stage, the cooling rate is 20°C / min, cool to 500°C, and the constant temperature time is 20 minutes; in the annealing stage, the cooling r...

Embodiment 3

[0019] Embodiment 3: at first waste and old plate glass is cleaned up, and after drying, ball milling becomes glass powder below 300 orders; then 88% cullet powder, 1.2% CaCO 3 , 3.3% Borax, 2.5% NaNO 3 , 5% of zirconium-containing alkali-resistant glass fibers with a diameter of 0.005 to 2 mm and a length of 0.1 to 100 mm are added to a ball mill jar and mixed for 40 minutes to obtain batch materials, which are added to heat-resistant steel molds and Move it into a foaming furnace and burn it according to the following process; in the preheating stage, the temperature is raised from room temperature to 400°C at a rate of 10°C / min, and then kept for 20 minutes; in the foaming stage, the temperature is raised to 720°C at a rate of 18°C / min ; In the bubble stabilization stage, hold at a constant temperature of 720°C for 40 minutes; in the rapid cooling stage, the cooling rate is 25°C / min, cool to 520°C, and the constant temperature time is 50 minutes; in the annealing stage, the...

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Abstract

The invention relates to a preparation method for high-intensity foam glass. Broken glass powder, CaCO3, borax, NaNO3 and flame-resistant fiber are added in a mill pot to be milled and mixed evenly; then the mixture is put in a mould and moved into a foaming furnace for preheating, foaming, foam stabilizing, quick cooling and annealing so as to obtain the foam glass. High-intensity fiber with high flame resistance is added to the foam glass, which is in favor of improving the mechanical property of the foam glass. Therefore, the foam glass prepared by the invention has high mechanical intensity, wider range of application than that of common foam glass and long service life. The foam glass can be combined with cement, steel or other high-intensity construction materials and has the advantages of durability and rigid structure. The foam glass can absorb the main part of explosion energy when facing shock wave.

Description

technical field [0001] The invention relates to a preparation method of foam glass, in particular to a preparation method of high-strength foam glass used in building environments such as wall materials or seabeds with pressure resistance, heat resistance, corrosion resistance and bending resistance. Background technique [0002] In the past few decades, there have been many terrorist attacks on government buildings in some countries in the world. For example, in 1993, terrorists detonated a car bomb in the garage of the World Trade Center in New York City, causing significant loss of life and property. In 1995, extremists blew up a truck outside a federal building in Oklahoma City, causing significant loss of life and property. In 1998, the U.S. embassies in Nairobi and Dar es Salaam were also attacked by terrorist car bombs, causing heavy loss of life and property respectively. The 2002 disasters at the World Trade Center in New York City and the Pentagon in Virginia fur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C11/00
Inventor 郭宏伟郭晓琛高档妮程乐志古先文余明光
Owner SHAANXI UNIV OF SCI & TECH
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