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Xonotlite reinforced and foamed cement and production method thereof

A technology of xonotlite and foamed cement, which is applied in the field of xonotlite reinforced foamed cement products and its production, and can solve the problems of easy combustion, aging, and fragility

Inactive Publication Date: 2013-04-03
LAIZHOU MINGGUANG THERMAL INSULATION MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Building energy conservation has become an important link in the implementation of energy conservation strategies in my country. Building energy conservation is reflected on the wall, which is to insulate the wall enclosure structure. At present, the popular building external insulation materials in my country's market are mainly EPS (molded polystyrene board ), XPS (extruded polystyrene board) and PU (polyurethane), in fact, EPS, XPS and PU are all organic insulation materials, the biggest advantage is light weight, good heat preservation and heat insulation, the biggest defect is poor fire safety, It is easy to age and burn, and produces a lot of smoke when burning, and is very toxic. Due to the occurrence of many building insulation fires in recent years, the fire performance of insulation materials has attracted unprecedented attention from all walks of life in the industry.
[0003] Foamed cement insulation board is currently the most ideal insulation material for wall insulation and wall insulation fireproof isolation belt. Its advantages are: no burning, strong adhesion with the wall, no toxic radioactive substances, environmental protection, economy, and easy construction , fast, its disadvantages are: low strength, brittle, poor toughness, brittle, and the flexural strength can only reach above 0.1MPa, which cannot be compared with foam glass, foam ceramics, phenolic foam board, polystyrene particles, polystyrene board, extrusion Compared with wall insulation materials such as boards

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1, a kind of xonotlite reinforced foam cement is made up of xonotlite slurry of 10-20% by mass and 80-90% of foamed cement, and the solid content of xonotlite slurry is 10%-30%, the balance is composed of water, and the solid content is composed of 50%-60% of Quartz and 4 0%-50% Lime composition, SiO in the quartz used 2 The content is greater than 98%, and the CaO content in the lime used is 90-96%;

[0011] The production method of the above-mentioned xonotlite reinforced foamed cement is to mix the xonotlite slurry with the foamed cement evenly and foam together, and the xonotlite slurry is mixed with a molar ratio of 0.92~1.08 Lime and quartz raw materials are mixed, and water 10 to 30 times the total weight of lime and quartz raw materials is added at the same time, and the calcium silicate active slurry is synthesized by dynamic hydrothermal method. , keep the vapor pressure at 1.8~2.2MPa, react at constant temperature and pressure for 4~8 hours, and...

Embodiment 2

[0013] Embodiment 2, a xonotlite reinforced foamed cement and its production method are based on embodiment 1. In this embodiment, industrial lime and 400 mesh quartz powder are used as calcium and siliceous raw materials. Prepare a slurry with a silicon / silicon molar ratio of 0.92, and a water / solid weight ratio of 10:1. After the prepared slurry is stirred evenly, it is placed in an autoclave with a stirring device, and the temperature is raised to 210°C at a rate of 1.5°C / min. , keep the steam pressure at 1.8~2.2MPa, keep the heat for 4 hours, then stop the heat source for natural cooling, react, and get xonotlite slurry; xonotlite reinforced foam cement is composed of foamed cement and xonotlite slurry according to the formula Proportional composition, that is, first mix the sulphoaluminate cement and ordinary Portland cement in the foamed cement in proportion, then mix with the xonotlite slurry, and then add the foaming agent, reinforcing agent, and polymer to form the fo...

Embodiment 3

[0014] Embodiment 3, a xonotlite reinforced foamed cement and its production method are based on embodiment 1. This embodiment uses industrial lime and 400 mesh quartz powder as calcium and siliceous raw materials. Prepare a slurry with a molar ratio of 1 / silicon, and a water / solid weight ratio of 20:1. After the prepared slurry is stirred evenly, put it into an autoclave with a stirring device, and heat up to 220°C at a rate of 1.5°C / min. , keep the steam pressure at 1.8~2.2MPa, keep it warm for 5 hours, then stop the heat source for natural cooling, react, and get xonotlite slurry; xonotlite reinforced foam cement is composed of foamed cement and xonotlite slurry according to the formula Proportional composition, that is, first mix the sulphoaluminate cement and ordinary Portland cement in the foamed cement in proportion, then mix with the xonotlite slurry, and then add the foaming agent, reinforcing agent, and polymer to form the foamed cement All materials, plant fibers, a...

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PUM

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Abstract

The invention discloses xonotlite reinforced and foamed cement which comprises 10-20wt% of xonotlite slurry and 80-90wt% of foamed cement and is produced by uniformly mixing the xonotlite slurry and the foamed cement and then foaming the mixture. According to the invention, by using the xonotlite active slurry is used as a reinforcing material and by combining the inherent characteristics of the foamed cement material, and the xonotlite reinforced and foamed cement with high compressive strength and low heat conduction coefficient is produced.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a xonotlite reinforced foamed cement product and a production method thereof. Background technique [0002] Building energy conservation has become an important link in the implementation of energy conservation strategies in China. Building energy conservation is reflected on the wall, which is to insulate the wall enclosure structure. At present, the popular building external insulation materials in China's market are mainly EPS (molded polystyrene board ), XPS (extruded polystyrene board) and PU (polyurethane), in fact, EPS, XPS and PU are all organic insulation materials, the biggest advantage is light weight, good heat preservation and heat insulation, the biggest defect is poor fire safety, It is easy to age, easy to burn, produces a lot of smoke when burning, and is very toxic. Due to the occurrence of many building insulation fire incidents in recent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06C04B38/00C04B14/04
Inventor 臧明光陈立庄
Owner LAIZHOU MINGGUANG THERMAL INSULATION MATERIALS
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