CN103011732A - Xonotlite reinforced and foamed cement and production method thereof - Google Patents
Xonotlite reinforced and foamed cement and production method thereof Download PDFInfo
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- CN103011732A CN103011732A CN2012104858718A CN201210485871A CN103011732A CN 103011732 A CN103011732 A CN 103011732A CN 2012104858718 A CN2012104858718 A CN 2012104858718A CN 201210485871 A CN201210485871 A CN 201210485871A CN 103011732 A CN103011732 A CN 103011732A
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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
The invention belongs to building material technical field, especially relate to a kind of xonotlite enhanced foaming cement products and production method thereof.
Background technology
Oneself becomes the important step that China implements the energy conservation strategy building energy conservation, and building energy conservation is reflected on the body of wall, exactly masonry wall structure is incubated processing; At present China's popular architectural exterior insulation material in market is mainly EPS(molding styrofoam), the XPS(extruded polystyrene board) and PU(urethane), in fact, EPS, XPS and PU belong to organic insulation material, great advantage is that quality is light, insulation and thermal insulation are good, greatest drawback is poor, easy aging, the easy firing of fire savety, when burning, produce a large amount of smog, toxicity is very large, because the in recent years generation of a lot of building heat preservation event of fire, the fire resistance of lagging material is beyond example to have caused the in the industry great attention of all circles.
The foaming cement thermal insulation plate is the optimal lagging material of present wall thermal insulating and wall thermal insulating fire-blocking belt, its advantage is: do not burn, strong with the body of wall cohesive force, toxicological harmless radiating material, environmental protection, economical, and easy construction, quick, its shortcoming is: intensity is low, crisp, poor toughness, frangible, folding strength can only reach more than the 0.1MPa, can't compare with wall heat insulation materials such as multicellular glass, foamed ceramics, phenolic foam board, granular polystyrene, styrofoam, extruded sheets.
Summary of the invention
The object of the invention is to improve the deficiency of prior art and provide a kind of with the xonotlite active slurry as strongthener, in conjunction with the natural characteristics of foamed cement material, xonotlite enhanced foaming cement products and the production method thereof that a kind of ultimate compression strength is high, thermal conductivity is low of production.
The object of the present invention is achieved like this, and a kind of xonotlite enhanced foaming cement is characterized in being comprised of the xonotlite slurry of mass percent 10-20%, the foam cement of 80-90%.
In order further to realize purpose of the present invention, the solid content that can be described xonotlite slurry is 10%-30%, and surplus is water, and wherein solid content is to be by mass percent
50%-60%Quartz and 4
0%-50%Lime form.
In order further to realize purpose of the present invention, can be SiO in the used quartz
2Content is greater than 98%, and CaO content is at 90-96% in the used lime.
In order further to realize purpose of the present invention, it can be the production method of above-mentioned a kind of xonotlite enhanced foaming cement, that the xonotlite slurry is mixed foaming with foam cement, be characterized in that described xonotlite slurry is that 0.92 ~ 1.08 ratio is mixed lime, quartz raw material in molar ratio, the water that adds simultaneously 10 ~ 30 times in lime, quartz raw material gross weight, adopt Dynamic Hydrothermal method synthetic calcium silicate active slurry process, reaction conditions: with 1.5 ℃/minute speed
,Be warming up to 210 ~ 230 ℃, keep vapor pressure 1.8 ~ 2.2MPa, constant temperature and pressure reaction 4 ~ 8 hours obtains the Calucium Silicate powder active slurry process after the cooling.
Compared with the prior art the present invention has following distinguishing feature and positively effect: the objective of the invention is to adopt the xonotlite active slurry as strongthener, take full advantage of xonotlite shaped material ultimate compression strength high, the characteristic that thermal conductivity is low, natural characteristics in conjunction with foam cement, with the foam cement raw material without any processing, process, directly and behind the xonotlite slurry mixed foaming, make xonotlite type foam cement compound insulating material, be characterized in utilizing the structural performance of foam cement to have fire resistance characteristic, with the foaming that is mixed of xonotlite slurry, solved the non-water-tight problem of xonotlite self, utilize constitutional features and the flexible characteristic of xonotlite molecule self, with the foaming that combines of foam cement raw material, solved foam cement intensity low, frangible problem, and the xonotlite shaped material is one of inorganic heat insulation material that thermal conductivity is minimum in the world at present, this material is participated in also having improved the heat-insulating property of material simultaneously with cement foamed; Therefore the xonotlite type foam cement compound insulating material that the inventive method is produced has ultimate compression strength high, make former ultimate compression strength improve approximately 30%, reach 〉=more than the 0.4MPa, and common foam cement is 〉=0.3Mpa; Folding strength is enhanced about more than once, for 〉=0.2MPa, common foam cement is 〉=0.1Mpa; Thermal conductivity under the normal temperature≤0.05W/(mK), thermal conductivity is≤0.07 W/(mK under the common foam cement normal temperature); The invention solves low, the frangible defective of cement foaming material intensity, and heat insulation effect is better, will has boundless market outlook in the exterior wall field of thermal insulation.
Embodiment
Embodiment 1, and a kind of xonotlite enhanced foaming cement is comprised of the xonotlite slurry of mass percent 10-20%, the foam cement of 80-90%, and xonotlite slurry solid content is 10%-30%, and surplus is that water forms, and wherein solid content is to be by mass percent
50%-60%Quartz and 4
0%-50%Lime form SiO in the used quartz
2Content is greater than 98%, and CaO content is at 90-96% in the used lime;
The production method of above-mentioned xonotlite enhanced foaming cement, that the xonotlite slurry is mixed foaming with foam cement, described xonotlite slurry is that 0.92 ~ 1.08 ratio is mixed lime, quartz raw material in molar ratio, the water that adds simultaneously 10 ~ 30 times in lime, quartz raw material gross weight, adopt Dynamic Hydrothermal method synthetic calcium silicate active slurry process, reaction conditions: be warming up to 210 ~ 230 ℃ with 1.5 ℃/minute speed, keep vapor pressure 1.8 ~ 2.2MPa, constant temperature and pressure reaction 4 ~ 8 hours obtains the xonotlite slurry after the cooling.
The present embodiment is as calcareous, siliceous raw material take commercial lime and 400 order silica powders, by calcium/silicon mol ratio be 1.08 the preparation slurries, water/solids weight ratio is 30:1, put into the autoclave with whipping appts after the slip for preparing stirs, be warming up to 230 ℃ with 1.5 ℃/minute speed, keep vapor pressure 1.8 ~ 2.2MPa, be incubated 8 hours, then stop thermal source and carry out the nature cooling, reaction obtains the xonotlite slip; Xonotlite enhanced foaming cement is comprised of by formula rate foam cement and xonotlite slurry, mix with the xonotlite slurry after namely being mixed in proportion with the aluminosulfate cement in the foam cement and ordinary Portland cement first, then add whipping agent, toughener, polymkeric substance, the vegetable fibre that forms foam cement, all material behind the mixing match, put into mould molding after stirring, keep moist curing, dried base substrate gets product after check.
Embodiment 2, a kind of xonotlite enhanced foaming cement and production method thereof, on the basis of embodiment 1, the present embodiment is as calcareous, siliceous raw material take commercial lime and 400 order silica powders, by calcium/silicon mol ratio be 0.92 the preparation slurries, water/solids weight ratio is 10:1, after stirring, puts into the slip for preparing the autoclave with whipping appts, be warming up to 210 ℃ with 1.5 ℃/minute speed, keep vapor pressure 1.8 ~ 2.2MPa, be incubated 4 hours, then stop thermal source and carry out the nature cooling, reaction obtains the xonotlite slip; Xonotlite enhanced foaming cement is comprised of by formula rate foam cement and xonotlite slurry, mix with the xonotlite slurry after namely being mixed in proportion with the aluminosulfate cement in the foam cement and ordinary Portland cement first, then add whipping agent, toughener, polymkeric substance, the vegetable fibre that forms foam cement, all material behind the mixing match, put into mould molding after stirring, keep moist curing, dried base substrate gets product after check.
Embodiment 3, a kind of xonotlite enhanced foaming cement and production method thereof, on the basis of embodiment 1, the present embodiment is as calcareous, siliceous raw material take commercial lime and 400 order silica powders, by calcium/silicon mol ratio be 1 the preparation slurries, water/solids weight ratio is 20:1, after stirring, puts into the slip for preparing the autoclave with whipping appts, be warming up to 220 ℃ with 1.5 ℃/minute speed, keep vapor pressure 1.8 ~ 2.2MPa, be incubated 5 hours, then stop thermal source and carry out the nature cooling, reaction obtains the xonotlite slip; Xonotlite enhanced foaming cement is comprised of by formula rate foam cement and xonotlite slurry, mix with the xonotlite slurry after namely being mixed in proportion with the aluminosulfate cement in the foam cement and ordinary Portland cement first, then add whipping agent, toughener, polymkeric substance, the vegetable fibre that forms foam cement, all material behind the mixing match, put into mould molding after stirring, keep moist curing, dried base substrate gets product after check.
Foam cement used in the present invention is identical with conventional foam cement, but not only limits to conventional foam cement, can be as raw material as long as composition is similar.
Claims (4)
1. an xonotlite enhanced foaming cement is characterized in that being comprised of the xonotlite slurry of mass percent 10-20%, the foam cement of 80-90%.
2. a kind of xonotlite enhanced foaming cement according to claim 1, the solid content of the described xonotlite slurry of its feature is 10%-30%, and surplus is water, and wherein solid content is to be by mass percent
50%-60%Quartz and 4
0%-50%Lime form.
3. a kind of xonotlite enhanced foaming cement according to claim 2 is characterized in that SiO in the used quartz
2Content is greater than 98%, and CaO content is at 90-96% in the used lime.
4. the production method of an xonotlite enhanced foaming cement claimed in claim 1, that the xonotlite slurry is mixed foaming with foam cement, it is characterized in that described xonotlite slurry is that 0.92 ~ 1.08 ratio is mixed lime, quartz raw material in molar ratio, the water that adds simultaneously 10 ~ 30 times in lime, quartz raw material gross weight, adopt Dynamic Hydrothermal method synthetic calcium silicate active slurry process, reaction conditions: with 1.5 ℃/minute speed
,Be warming up to 210 ~ 230 ℃, keep vapor pressure 1.8 ~ 2.2MPa, constant temperature and pressure reaction 4 ~ 8 hours obtains the Calucium Silicate powder active slurry process after the cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012104858718A CN103011732A (en) | 2012-11-26 | 2012-11-26 | Xonotlite reinforced and foamed cement and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104858718A CN103011732A (en) | 2012-11-26 | 2012-11-26 | Xonotlite reinforced and foamed cement and production method thereof |
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| CN103011732A true CN103011732A (en) | 2013-04-03 |
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| CN2012104858718A Pending CN103011732A (en) | 2012-11-26 | 2012-11-26 | Xonotlite reinforced and foamed cement and production method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108069673A (en) * | 2016-11-17 | 2018-05-25 | 中国科学院过程工程研究所 | A kind of calcium silicates fire-proof plate and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1479700A (en) * | 2000-10-05 | 2004-03-03 | Fire-proof material |
-
2012
- 2012-11-26 CN CN2012104858718A patent/CN103011732A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1479700A (en) * | 2000-10-05 | 2004-03-03 | Fire-proof material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108069673A (en) * | 2016-11-17 | 2018-05-25 | 中国科学院过程工程研究所 | A kind of calcium silicates fire-proof plate and preparation method thereof |
| CN108069673B (en) * | 2016-11-17 | 2021-06-22 | 中国科学院过程工程研究所 | Calcium silicate fireproof plate and preparation method thereof |
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Application publication date: 20130403 |