CN104529345B - Nano-pearl rock heat insulating mortar and preparation method thereof - Google Patents
Nano-pearl rock heat insulating mortar and preparation method thereof Download PDFInfo
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- CN104529345B CN104529345B CN201410804416.9A CN201410804416A CN104529345B CN 104529345 B CN104529345 B CN 104529345B CN 201410804416 A CN201410804416 A CN 201410804416A CN 104529345 B CN104529345 B CN 104529345B
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Abstract
The invention belongs to building material field, be specially a kind of nano-pearl rock heat insulating mortar and preparation method thereof。Described heat insulating mortar is prepared from by sulphate aluminium cement, flyash, nano-pearl rock, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether, polypropylene fibre and water reducer。Heat preserving aggregate adopts nano-pearl rock, and nano-pearl batholith dries be prepared from vacuum impregnation absorbing process and normal pressure classification。Mortar of the present invention has relatively low heat conductivity and higher intensity, realize the best unification of intensity and thermal and insulating performance, the present invention is inorganic material, fire protecting performance A level is not fired, and there is the performances such as antiseepage, anticorrosion, freeze thawing resistance, adhesive strength height, good weatherability, stable performance be durable, nontoxic, good thermal and insulating performance can be kept in the whole life cycle of building, thus effectively reducing the energy consumption of building, improve energy use efficiency, meet the requirement that China's building energy conservation reduces discharging。
Description
Technical field
The present invention relates to a kind of insulation material for building, specifically a kind of nano-pearl rock heat insulating mortar and preparation method thereof。
Background technology
At present, along with raising and the rapid development of economy of people's living standard, the consumption of the energy gets more and more, and the non-regeneration energy such as available coal day by day reduces in the world, and the exploitation of new forms of energy needs time。Therefore how reducing the consumption of the energy, improving energy utilization rate is the key solving energy problem at present。
Relevant report is pointed out, in social resources total energy consumption, building energy consumption accounts for about 1/4, and along with the fast development of China's architectural design, construction and operation, energy-output ratio also in corresponding increase, has reached the 1/3 of overall resource energy input。Therefore, building energy conservation is concerning the steady development of China's economy and sustainable development。
The thermal insulation mortar used in architectural engineering now has two kinds: one is organic heat-insulating mortar, such as polyphenyl particle heat-insulating mortar；This insulation material fire protecting performance poor and discarded after can cause white pollution。Another kind is inorganic heat insulation mortar, such as swelling perlite heat-insulating mortar, foam glass thermal insulation mortar, kervit microbead insulated sand slurry；Expanded perlite water absorption rate relatively high cracking resistance can be poor, thus outer heat preservation system cannot be really applied to；The water absorption rate of foam glass thermal insulation mortar is big, tensile bond strength is relatively low, and be prone to hollowing cracking affect the outward appearance of building and the service life of heat-insulation system；And kervit microbead insulated sand slurry, due to technical shortcoming, its heat conductivity is always held at 0.07W/m about k, and heat-insulating property is difficult to meet China's cold and severe cold area power conservation requirement。
Summary of the invention
The present invention is directed to the defect existed in prior art, it is provided that one can meet fire protection requirement, has again relatively low thermal conductivity and the thermal insulation mortar that intensity and durability improve a lot, specifically a kind of nano-pearl rock heat insulating mortar and preparation method thereof。
The present invention is achieved through the following technical solutions:
A kind of nano-pearl rock heat insulating mortar, it is made up of each raw material of following parts by weight: sulphate aluminium cement 25-45 part, flyash 5-15 part, nano-pearl rock 35-65 part, silicon ash 2-5 part, redispersible latex powder 3-5 part, hydroxypropyl methyl cellulose ether 0.4-0.5 part, polypropylene fibre 0.08-0.1 part, water reducer 0.01-0.1 part。Wherein, described nano-pearl rock is the nano-pearl rock with good grating, and its particle diameter is 0.5-2mm, and heat conductivity is 0.02-0.04W/m.k。
Described nano-pearl rock is to be adopted vacuum impregnation absorbing process and normal pressure classification to dry and be prepared from by expanded perlite and nano silicon dioxide sol, specifically comprises the processes of: expanded perlite is soaked in the nano silicon dioxide sol prepared in advance, adopt vacuum impregnation absorbing process, nano silicon dioxide sol is made to suck in expanded perlite cavity, form gel, after to be aging, dried by normal pressure classification, hydrophobic process forms nano-pearl rock。
The preparation method of nano-pearl rock heat insulating mortar of the present invention, comprise the steps: to mix the sulphate aluminium cement of described parts by weight, flyash, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether and polypropylene fibre, after stirring at normal temperatures, add nano-pearl rock and the water reducer of described parts by weight, it is again stirring for uniformly, namely obtaining described nano-pearl rock heat insulating mortar。
Nano-pearl rock heat insulating mortar finished product of the present invention is in dry powdered form, this heat-insulating mortar dry powder only need to be initially charged in blender during construction usage, add appropriate water to stir (generally, the proportion of dry powder and water is 0.85-1.1:1, mixing time is 5-6 minute, make slip uniformly paste, can use。
The specifically used method of nano-pearl rock heat insulating mortar of the present invention is: 1) before boundary mortar solidifies, brushing thickness is not more than the nano-pearl rock heat insulating mortar of 20mm, make that this mortar is uniformly closely knit is covered in wall surface, mortar bonding with wall live after, should not repeatedly catch up with pressure；2) until ground floor harden after this nano-pearl rock heat insulating mortar of the brushing second layer until reaching design thickness。
First the present invention compared with prior art has the advantage that, the present invention adopts the nano-pearl rock with good grating as heat preserving aggregate, and adopt high-strength plastic gel material, the technical bottleneck of thermal insulation mortar thermal and insulating performance can be broken through, the heat conductivity of thermal insulation mortar is down to below 0.05W/m K, make mortar have good heat storage capacity and thermal inertia simultaneously, and improve the intensity of mortar to a certain extent, it is achieved the best unification of intensity and thermal and insulating performance。Secondly, silicon ash reduces the heat of hydration with water reducer combined effect, further increases the intensity of mortar, improves its durability, Cl impervious, anti--The performance of infiltration and electrochemically resistant corrosion。
In sum, nano-pearl rock heat insulating mortar of the present invention has relatively low heat conductivity and higher intensity, realize the best unification of intensity and thermal and insulating performance, the present invention is inorganic material, fire protecting performance A level is not fired, and there is the performances such as antiseepage, anticorrosion, freeze thawing resistance, adhesive strength height, good weatherability, stable performance be durable, nontoxic, good thermal and insulating performance can be kept in the whole life cycle of building, thus effectively reducing the energy consumption of building, improve energy use efficiency, meet the requirement that China's building energy conservation reduces discharging。This product is not limited by building height, can be widely applied to the wall thermal insulating of the industrial civil building of newly-built, the enlarging of various building height and Existing reinforced concrete bridge transformation heat insulation, it is possible to be applied to the levelling fireprotection layer etc. of garage, stair, corridor, passageway for fire apparatus, flooring, roofing, fire-blocking belt, the independent insulation of heat bridge, EPS and XPS。
Detailed description of the invention
Embodiment 1(every part is 1kg)
A kind of nano-pearl rock heat insulating mortar, is made up of each raw material of following parts by weight: sulphate aluminium cement 25 parts, 15 parts of flyash, 65 parts of nano-pearl rock, silicon ash 2 parts, redispersible latex powder 5 parts, hydroxypropyl methyl cellulose ether 0.5 part, polypropylene fibre 0.08 part, water reducer 0.1 part。
The preparation method of above-mentioned nano-pearl rock heat insulating mortar, comprise the steps: to mix the sulphate aluminium cement of described parts by weight, flyash, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether and polypropylene fibre, after stirring at normal temperatures, add nano-pearl rock and the water reducer of described parts by weight, it is again stirring for uniformly, namely obtaining described nano-pearl rock heat insulating mortar。
Wherein, the particle diameter of described nano-pearl rock is 0.5mm, and heat conductivity is 0.04W/m.k。
Embodiment 2(every part is 500g)
A kind of nano-pearl rock heat insulating mortar, it is made up of each raw material of following parts by weight: sulphate aluminium cement 20 parts, 10 parts of flyash, 50 parts of nano-pearl rock, silicon ash 3.5 parts, redispersible latex powder 4.5 parts, hydroxypropyl methyl cellulose ether 0.45 part, polypropylene fibre 0.09 part, water reducer 0.05 part。
The preparation method of above-mentioned nano-pearl rock heat insulating mortar, comprise the steps: to mix the sulphate aluminium cement of described parts by weight, flyash, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether and polypropylene fibre, after stirring at normal temperatures, add nano-pearl rock and the water reducer of described parts by weight, it is again stirring for uniformly, namely obtaining described nano-pearl rock heat insulating mortar。
The preparation method of described nano-pearl rock is as follows: be soaked in by expanded perlite in the nano silicon dioxide sol prepared in advance, adopt vacuum impregnation absorbing process, nano silicon dioxide sol is made to suck in expanded perlite cavity, form gel, after to be aging, dried by normal pressure classification, hydrophobic process forms nano-pearl rock。
Embodiment 3(every part is 10kg)
A kind of nano-pearl rock heat insulating mortar, is made up of each raw material of following parts by weight: sulphate aluminium cement 45 parts, 8 parts of flyash, 55 parts of nano-pearl rock, silicon ash 5 parts, redispersible latex powder 3.5 parts, hydroxypropyl methyl cellulose ether 0.4 part, polypropylene fibre 0.1 part, water reducer 0.01 part。
The preparation method of above-mentioned nano-pearl rock heat insulating mortar, comprise the steps: to mix the sulphate aluminium cement of described parts by weight, flyash, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether and polypropylene fibre, after stirring at normal temperatures, add nano-pearl rock and the water reducer of described parts by weight, it is again stirring for uniformly, namely obtaining described nano-pearl rock heat insulating mortar。
Embodiment 4(every part is 300g)
A kind of nano-pearl rock heat insulating mortar, is made up of each raw material of following parts by weight: sulphate aluminium cement 40 parts, 12 parts of flyash, 45 parts of nano-pearl rock, silicon ash 4 parts, redispersible latex powder 3 parts, hydroxypropyl methyl cellulose ether 0.47 part, polypropylene fibre 0.1 part, water reducer 0.08 part。
The preparation method of above-mentioned nano-pearl rock heat insulating mortar, comprise the steps: to mix the sulphate aluminium cement of described parts by weight, flyash, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether and polypropylene fibre, after stirring at normal temperatures, add nano-pearl rock and the water reducer of described parts by weight, it is again stirring for uniformly, namely obtaining described nano-pearl rock heat insulating mortar。
Wherein, the particle diameter of described nano-pearl rock is 1.5mm, and heat conductivity is 0.02W/m.k。
Embodiment 5(every part is 3kg)
A kind of nano-pearl rock heat insulating mortar, is made up of each raw material of following parts by weight: sulphate aluminium cement 35 parts, 5 parts of flyash, 35 parts of nano-pearl rock, silicon ash 3 parts, redispersible latex powder 4 parts, hydroxypropyl methyl cellulose ether 0.42 part, polypropylene fibre 0.08 part, water reducer 0.02 part。
The preparation method of above-mentioned nano-pearl rock heat insulating mortar, comprise the steps: to mix the sulphate aluminium cement of described parts by weight, flyash, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether and polypropylene fibre, after stirring at normal temperatures, add nano-pearl rock and the water reducer of described parts by weight, it is again stirring for uniformly, namely obtaining described nano-pearl rock heat insulating mortar。
Wherein, the particle diameter of described nano-pearl rock is 2mm, and heat conductivity is 0.03W/m.k。
The preparation method of described nano-pearl rock is as follows: be soaked in by expanded perlite in the nano silicon dioxide sol prepared in advance, adopt vacuum impregnation absorbing process, nano silicon dioxide sol is made to suck in expanded perlite cavity, form gel, after to be aging, dried by normal pressure classification, hydrophobic process forms nano-pearl rock。
Claims (5)
1. a nano-pearl rock heat insulating mortar, it is characterized in that, it is made up of each raw material of following parts by weight: sulphate aluminium cement 25-45 part, flyash 5-15 part, nano-pearl rock 35-65 part, silicon ash 2-5 part, redispersible latex powder 3-5 part, hydroxypropyl methyl cellulose ether 0.4-0.5 part, polypropylene fibre 0.08-0.1 part, water reducer 0.01-0.1 part；Wherein, expanded perlite is soaked in the nano silicon dioxide sol prepared in advance, adopts vacuum impregnation absorbing process, nano silicon dioxide sol is made to suck in expanded perlite cavity, formed gel, after to be aging, dried by normal pressure classification, hydrophobic process formed nano-pearl rock。
2. nano-pearl rock heat insulating mortar according to claim 1, it is characterised in that: with tetraethyl orthosilicate for presoma when preparing nano silicon dioxide sol。
3. nano-pearl rock heat insulating mortar according to claim 1, it is characterised in that: use the dehydrated alcohol of purity 99% as organic solvent when preparing nano silicon dioxide sol。
4. nano-pearl rock heat insulating mortar according to claim 1, it is characterised in that: the particle diameter of described nano-pearl rock is 0.5-2mm, and heat conductivity is 0.02-0.04W/m k。
5. the preparation method of nano-pearl rock heat insulating mortar as claimed in claim 1, it is characterized in that, comprise the steps: to mix the sulphate aluminium cement of described parts by weight, flyash, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether and polypropylene fibre, after stirring at normal temperatures, add nano-pearl rock and the water reducer of described parts by weight, it is again stirring for uniformly, namely obtaining described nano-pearl rock heat insulating mortar。
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104909666B (en) * | 2015-06-11 | 2017-01-11 | 江西省科学院应用化学研究所 | Hybrid high-efficiency thermal-insulation material and preparation method thereof |
| CN108516744A (en) * | 2018-05-16 | 2018-09-11 | 合肥天沃能源科技有限公司 | A kind of light energy saving brick and preparation method thereof |
| CN109162108A (en) * | 2018-07-31 | 2019-01-08 | 合肥远科服装设计有限公司 | A kind of firefighter uniform waterproof paint specially and preparation method thereof |
| CN109098005A (en) * | 2018-07-31 | 2018-12-28 | 合肥远科服装设计有限公司 | A kind of coating and preparation method thereof for shell fabric for fire garment |
| CN110078462A (en) * | 2019-05-20 | 2019-08-02 | 山西晟科微生物建材科技有限公司 | Microorganism selfreparing thermal insulation mortar for building and preparation method thereof |
| CN112227464A (en) * | 2020-09-21 | 2021-01-15 | 太原理工大学 | Geothermal well shaft heat insulation structure and construction method thereof |
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| CN1690008A (en) * | 2004-04-30 | 2005-11-02 | 宁波荣山新型材料有限公司 | Heat-insulating mortar for external wall of building |
| CN101032841A (en) * | 2006-03-06 | 2007-09-12 | 兰州海锋建材科技有限公司 | Single unit heat-insulating dry mortar and the producing method |
| CN102979206A (en) * | 2012-11-12 | 2013-03-20 | 青岛科瑞新型环保材料有限公司 | Inorganic thermal mortar composite vacuum heat insulation board and preparation method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1690008A (en) * | 2004-04-30 | 2005-11-02 | 宁波荣山新型材料有限公司 | Heat-insulating mortar for external wall of building |
| CN101032841A (en) * | 2006-03-06 | 2007-09-12 | 兰州海锋建材科技有限公司 | Single unit heat-insulating dry mortar and the producing method |
| CN102979206A (en) * | 2012-11-12 | 2013-03-20 | 青岛科瑞新型环保材料有限公司 | Inorganic thermal mortar composite vacuum heat insulation board and preparation method thereof |
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