Hydrophobic concrete-based polyphenylene granule heat-insulating mortar dry powder and using method thereof
Technical field
The present invention relates to a kind of heat-insulating mortar dry powder that is applied to building energy saving field, the especially a kind of heat-insulating mortar dry powder of external thermal insulation system, exterior wall internal insulation system, roof heat insulation system or stair heat-insulation system and using method of this heat-insulating mortar dry powder of being applied to.
Background technology
At present, according to the requirement of national architectural development planning, country will greatly develop the technology of building energy conservation, and building energy conservation will become the developing direction of China's building trade.External wall outer insulation is the important technical of building energy conservation, has become the focus of building energy conservation.External wall outer insulation mainly contains warming plate (mainly containing EPS plate and XPS plate two big classes) and two kinds of forms of concrete-based polyphenylene granule heat-insulating mortar (abbreviation thermal insulation mortar) now: warming plate is not high in present share of market, it is main because the warming plate construction is complicated, comprehensive cost is high and be not suitable for the irregular building part insulation of profile, surface crack is not solved preferably, thereby use is subjected to certain restriction; Thermal insulation mortar has that light weight, thermal conductivity are low, easy construction is not subjected to advantages such as buildings profile control, can overcome many deficiencies of warming plate
[1] [2]It has improved the thermal and insulating performance of buildings, has reduced the heating air-conditioner energy consumption, and save energy has improved people's living quality, has favorable economic benefit and social benefit.Thermal insulation mortar utilizes municipal wastess such as waste and old EPS and flyash, turns waste into wealth, and belongs to the environment protecting and power-saving building materials, has very large development space and application prospect
[3]
Because body of wall or roof heat insulation market upper layer cracking problem can't obtain basic solution, average external wall surface layer more than 80% all can occur after 2,3 years in various degree and dissimilar crackles.Thermal insulation mortar does not in the market have hydrophobic nature, in case the thermal insulation mortar water content reaches certain degree, its thermal conductivity will raise greatly.The author has also carried out great deal of experimental to the water-intake rate and the relation between the thermal conductivity of thermal insulation mortar.Numerous data are being weighted on average as can be known: when its volume water absorption rate was increased to 5%, 10% and 15% respectively under by the over dry state, its thermal conductivity value had increased by 122%, 198% and 361% respectively.Hence one can see that in order to ensure the thermal and insulating performance later stage stability of thermal insulation mortar, and its water-intake rate index will cause enough attention.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, the technical problem of the later stage stability of the thermal and insulating performance of solution concrete-based polyphenylene granule heat-insulating mortar, a kind of concrete-based polyphenylene granule heat-insulating mortar dry powder with high hydrophobic effect is provided, the measure that this heat-insulating mortar dry powder adopts for the hydrophobic rate that improves concrete-based polyphenylene granule heat-insulating mortar is to seek several macromolecular materials and adulterant to carry out compositely coming the thermal insulation mortar of original not hydrophobic nature is carried out modification, and by orthogonal test prescription is optimized processing, improves the hydrophobic rate of concrete-based polyphenylene granule heat-insulating mortar with this.
Another object of the present invention provides a kind of using method of above-mentioned heat-insulating mortar dry powder.
Purpose of the present invention can reach by following measure:
A kind of hydrophobic concrete-based polyphenylene granule heat-insulating mortar dry powder, it is characterized in that each unit thermal insulation mortar it form by the raw material of following component: particle diameter is granular polystyrene 0.9~1.1m of 3~5mm
3Silicate cement 145~165kg, flyash and/or high-calcium fly ass 50~70kg, polypropylene fibre 0.4~1kg, 80~100 purpose dicalcium powders and/or Paris white 1.3~1.7kg, silylation powder 1.0~2.1kg, methylcellulose gum and/or Vltra tears 1.0~2.1kg, polyvinyl alcohol dry powder 1.7~2.3kg, dodecyl water glass 0.026~0.030kg, redispersible latex powder 1.7~3.6kg.
Purpose of the present invention can also reach by following measure:
Described redispersible latex powder is selected from a kind of or its combination in VAC/VeoVa/E multipolymer, VAC/VeoVa multipolymer or the E homopolymer, wherein said VAC/VeoVa/E multipolymer is the multipolymer of vinyl acetate between to for plastic, tertiary ethylene carbonate and ethene, the VAC/VeoVa multipolymer is the multipolymer of vinyl acetate between to for plastic and tertiary ethylene carbonate, and E is an ethene.
Described silicate cement is P52.5 silicate cement or P42.5 silicate cement, is preferably the P52.5 silicate cement.
Described flyash is selected from II level flyash or I level flyash or its combination, and being preferably flyash is II level flyash.
This heat-insulating mortar dry powder is made up of following component: particle diameter is 5mm granular polystyrene 1m
3, P52.5 silicate cement 160kg, II level flyash 60kg, polypropylene fibre: 0.5kg, dicalcium powder 1.5kg, silylation powder 1.3kg, methylcellulose gum 1.3kg, polyvinyl alcohol dry powder 1.9kg, dodecyl water glass 0.028kg, redispersible latex powder 2.0kg and water 140~180kg.
The using method of above-mentioned hydrophobic concrete-based polyphenylene granule heat-insulating mortar dry powder is that heat-insulating mortar dry powder with described each unit adds and promptly can be made into hydrophobic concrete-based polyphenylene granule heat-insulating mortar after water 140~180kg water fully stirs.
Beneficial effect of the present invention:
The hydrophobic concrete-based polyphenylene granule heat-insulating mortar water-intake rate that heat-insulating mortar dry powder of the present invention is made is 3.1%~5.8%, well below 8~20% level of existing concrete-based polyphenylene granule heat-insulating mortar.Guaranteed the later stage stability of heat-insulation system heat insulating effect.
Embodiment
The present invention is further illustrated below in conjunction with specific embodiment.
Embodiment 1
Getting particle diameter is the granular polystyrene 0.9m of 3mm
3P42.5 silicate cement 145kg, II level flyash 50kg, polypropylene fibre 0.4kg, 80 purpose dicalcium powder 1.3kg, model is: the silylation powder 1.0kg of seals80, methylcellulose gum 1.0kg, polyvinyl alcohol dry powder 1.7kg, dodecyl water glass 0.026kg, by the copolymer 1 .7kg of VAC/VeoVa/E, adding 140kg water and abundant stir (mortar mixer 3-10 minute) get final product in the time of use, and the water-intake rate that records this thermal insulation mortar is 5.8%.
Embodiment 2
Getting particle diameter is the granular polystyrene 1.1m of 5mm
3P52.5 silicate cement 165kg, I level flyash 70kg, polypropylene fibre 1kg, 100 purpose dicalcium powder 1.7kg, model is: the silylation powder 2.1kg of seals80, Vltra tears 2.1kg, polyvinyl alcohol dry powder 2.3kg, dodecyl water glass 0.030kg, by the multipolymer 3.6kg of VAC/VeoVa, adding 180kg water and abundant stir (mortar mixer 3-10 minute) get final product in the time of use, and the water-intake rate that records this thermal insulation mortar is 3.1%.
Embodiment 3
Getting particle diameter is the granular polystyrene 1.0m of 4mm
3P52.5 silicate cement 155kg, high-calcium fly ass 60kg, polypropylene fibre 0.7kg, 90 purpose Paris white 1.7kg, model is: the silylation powder 1.5kg of seals80, methylcellulose gum 1.5kg, polyvinyl alcohol dry powder 1.9kg, dodecyl water glass 0.028kg, VAC homopolymer 2.5kg adds 160kg water in the time of use and abundant stir (mortar mixer 3-10 minute) gets final product, and the water-intake rate that records this thermal insulation mortar is 4.0%.
Embodiment 4
Getting particle diameter is 5mm granular polystyrene 1m
3P52.5 silicate cement 160kg, II level flyash 60kg, polypropylene fibre: 0.5kg, dicalcium powder 1.5kg, model is: the silylation powder 1.3kg of seals80, methylcellulose gum 1.3kg, polyvinyl alcohol dry powder 1.9kg, dodecyl water glass 0.028kg, redispersible latex powder 2.0kg and water 150kg mix the back with above-mentioned raw materials and fully stir, and the water-intake rate that records this thermal insulation mortar is 5.3%.
Embodiment 5
Getting particle diameter is the granular polystyrene 0.95m of 3.5mm
3P42.5 silicate cement 150kg, II level flyash 25kg and high-calcium fly ass 30kg, polypropylene fibre 0.7kg, 85 purpose dicalcium powder 0.6kg and 95 purpose Paris white 0.8kg, model is: the silylation powder 1.8kg of seals80, Vltra tears 1.8kg, methylcellulose gum 1.8kg, polyvinyl alcohol dry powder 2.0kg, dodecyl water glass 0.027kg, by 1.5 kilograms of VAC/VeoVa/E multipolymers and 1.6 kilograms of redispersible latex powder 3.1kg that the VAC/VeoVa multipolymer is formed, and add water 170kg, and above-mentioned raw materials being mixed the back fully stir, the water-intake rate that records this thermal insulation mortar is 3.5%.
Embodiment 6
Getting particle diameter is the granular polystyrene 1.05m of 4.5mm
3P52.5 silicate cement 160kg, II level flyash 20kg, I level flyash 20kg and high-calcium fly ass 25kg, polypropylene fibre 0.5kg, 80 purpose dicalcium powder 0.8kg and 100 order Paris white 0.8kg, model is: the silylation powder 1.2kg of seals80, methylcellulose gum 0.6kg, Vltra tears 0.6kg, polyvinyl alcohol dry powder 1.8kg, dodecyl water glass 0.029kg, by 0.8 kilogram of VAC/VeoVa/E multipolymer, 0.9 kilogram VAC/VeoVa multipolymer and 0.7 kilogram of redispersible latex powder that the VAC homopolymer is formed, and add water 180kg, and above-mentioned raw materials being mixed the back fully stir, the water-intake rate that records this thermal insulation mortar is 5.5%.
Reference
[1] Wang Zhengquan improves the research of EPS mortar heat retaining property and anticracking mortar splitting resistance, urban construction institute of Nanjing University of Technology master thesis, 2004 (6): 3-3
[2] Yin Zhonghai, the development of granules of polystyrene composite silicate heat insulation material and application, Wuhan University of Technology's Materials Academy academic dissertation, 2001 (12): 2-2
[3] Zhou Guangsheng, the performance and the application of useless PS cement heat preserving mortar, Building technology, 1999,30 (10): 705-706