CN104529345A - Nano-perlite thermal insulation mortar and preparation method thereof - Google Patents

Nano-perlite thermal insulation mortar and preparation method thereof Download PDF

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Publication number
CN104529345A
CN104529345A CN201410804416.9A CN201410804416A CN104529345A CN 104529345 A CN104529345 A CN 104529345A CN 201410804416 A CN201410804416 A CN 201410804416A CN 104529345 A CN104529345 A CN 104529345A
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nano
pearl rock
heat insulating
insulating mortar
thermal insulation
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CN201410804416.9A
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CN104529345B (en
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刘元珍
胡凤丽
王文婧
李珠
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Taiyuan University of Technology
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Taiyuan University of Technology
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  • Curing Cements, Concrete, And Artificial Stone (AREA)
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Abstract

The invention belongs to the field of building materials, and specifically discloses nano-perlite thermal insulation mortar and a preparation method thereof. The thermal insulation mortar is prepared from sulphate aluminium cement, coal ash, nano-perlite, silica fume, redispersible emulsion powder, hydroxypropyl methyl cellulose ether, polypropylene fibres and a water reducer, wherein thermal insulation aggregates are prepared from the nano-perlite on the basis of a vacuum dipping adsorption process, and normal-pressure classifying and drying. The mortar disclosed by the invention is low in heat conductivity coefficient and high in strength, and realizes the optimal unification of the strength and the thermal insulation; the mortar disclosed by the invention is an inorganic material, achieves level-A fire resistance, has the performances of seepage prevention, corrosion prevention, high bonding strength, good weather resistance, stable and durable performances, no toxicity and harm, and the like, and can keep good thermal insulation in the whole life cycle of a building, thus effectively reducing the energy consumption of the building, increasing the use efficiency of energies, and meeting the requirements of energy conservation and emission reduction of buildings in China.

Description

Nano-pearl rock heat insulating mortar and preparation method thereof
Technical field
The present invention relates to a kind of lagging 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 to reduce 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 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 construction work now has two kinds: one is organic heat-insulating mortar, as polyphenyl particle heat-insulating mortar; This lagging material fire resistance poor and discarded after can cause white pollution.Another kind is inorganic heat insulation mortar, as swelling perlite heat-insulating mortar, multicellular glass thermal insulation mortar, kervit microbead insulated sand slurry; Pearlstone water-intake rate comparatively high cracking resistance can be poor, thus really cannot be applied to outer heat preservation system; The water-intake rate of multicellular glass thermal insulation mortar is large, tensile bond strength is lower, and is easy to hollowing cracking and affects the outward appearance of buildings and the work-ing life of heat-insulation system; And kervit microbead insulated sand slurry, due to technical shortcoming, its thermal conductivity remains on about 0.07W/mk always, 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, provide one and can meet fire protection requirement, there is again comparatively low thermal conductivity, and the thermal insulation mortar that intensity and weather resistance 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, be made up of each raw material of following parts by weight: aluminosulfate 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 thermal conductivity is 0.02-0.04W/m.k.
Described nano-pearl rock adopts vacuum impregnation absorbing process and normal pressure classification drying to be prepared from by pearlstone and nano silicon dioxide sol, concrete technology is: be soaked in by pearlstone in the nano silicon dioxide sol prepared in advance, adopt vacuum impregnation absorbing process, nano silicon dioxide sol is made to suck in pearlstone cavity, form gel, after to be aging, hydrophobic process dry by normal pressure classification forms nano-pearl rock.
The preparation method of nano-pearl rock heat insulating mortar of the present invention, the aluminosulfate cement of described parts by weight, flyash, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether and polypropylene fibre is comprised the steps: to mix, after stirring at normal temperatures, add nano-pearl rock and the water reducer of described parts by weight again, again stir, namely obtain described nano-pearl rock heat insulating mortar.
Nano-pearl rock heat insulating mortar finished product of the present invention is in dry powdered form, only this heat-insulating mortar dry powder need be first added in stirrer during construction usage, add appropriate water again to stir (generally, the proportion of dry powder and water is 0.85-1.1:1, churning time is 5-6 minute, make slip uniformly paste, can use.
The concrete using method of nano-pearl rock heat insulating mortar of the present invention is: 1) before boundary mortar solidification, brushing thickness is not more than the nano-pearl rock heat insulating mortar of 20mm, make that this mortar is evenly closely knit is covered in wall surface, mortar bonding with wall live after, repeatedly should not catch up with pressure; 2) until the first layer sclerosis after this nano-pearl rock heat insulating mortar of the brushing second layer until reach design thickness.
The present invention compared with prior art has the following advantages: first, 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 thermal conductivity of thermal insulation mortar is down to below 0.05W/mK, make mortar have good heat storage capacity and thermal lag simultaneously, and improve the intensity of mortar to a certain extent, the best realizing intensity and thermal and insulating performance is unified.Secondly, silicon ash reduces hydration heat with water reducer acting in conjunction, further increases the intensity of mortar, improves its weather resistance, impervious, anti-Cl -the performance of infiltration and electrochemically resistant corrosion.
In sum, nano-pearl rock heat insulating mortar of the present invention has lower thermal conductivity and higher intensity, the best realizing intensity and thermal and insulating performance is unified, the present invention is inorganic materials, fire resistance A level is not fired, and there is antiseepage, the performance such as anticorrosion, freeze-thaw-, bonding strength are high, good weatherability, stable performance are durable, nontoxic, good thermal and insulating performance can be kept in the whole life cycle of building, thus effectively reduce the energy consumption of buildings, improve energy use efficiency, meet the requirement that China's building energy conservation reduces discharging.This product does not limit by building height, the wall thermal insulating of industrial civil building that can be widely used in newly-built, the enlarging of various building height and Existing reinforced concrete bridge transformation is heat insulation, and can be applied to the levelling fireproofing etc. of garage, stair, corridor, fire passage, flooring, roofing, fire-blocking belt, the independent heat insulating of heat bridge, EPS and XPS.
Embodiment
Embodiment 1(every part is 1kg)
A kind of nano-pearl rock heat insulating mortar, be made up of each raw material of following parts by weight: aluminosulfate cement 25 parts, 15 parts, flyash, 65 parts, 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, the aluminosulfate cement of described parts by weight, flyash, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether and polypropylene fibre is comprised the steps: to mix, after stirring at normal temperatures, add nano-pearl rock and the water reducer of described parts by weight again, again stir, namely obtain described nano-pearl rock heat insulating mortar.
Wherein, the particle diameter of described nano-pearl rock is 0.5mm, and thermal conductivity is 0.04W/m.k.
Embodiment 2(every part is 500g)
A kind of nano-pearl rock heat insulating mortar, be made up of each raw material of following parts by weight: aluminosulfate cement 20 parts, 10 parts, flyash, 50 parts, 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, the aluminosulfate cement of described parts by weight, flyash, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether and polypropylene fibre is comprised the steps: to mix, after stirring at normal temperatures, add nano-pearl rock and the water reducer of described parts by weight again, again stir, namely obtain described nano-pearl rock heat insulating mortar.
The preparation method of described nano-pearl rock is as follows: be soaked in by pearlstone in the nano silicon dioxide sol prepared in advance, adopt vacuum impregnation absorbing process, nano silicon dioxide sol is made to suck in pearlstone cavity, form gel, after to be aging, hydrophobic process dry by normal pressure classification forms nano-pearl rock.
Embodiment 3(every part is 10kg)
A kind of nano-pearl rock heat insulating mortar, be made up of each raw material of following parts by weight: aluminosulfate cement 45 parts, 8 parts, flyash, 55 parts, 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, the aluminosulfate cement of described parts by weight, flyash, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether and polypropylene fibre is comprised the steps: to mix, after stirring at normal temperatures, add nano-pearl rock and the water reducer of described parts by weight again, again stir, namely obtain described nano-pearl rock heat insulating mortar.
Embodiment 4(every part is 300g)
A kind of nano-pearl rock heat insulating mortar, be made up of each raw material of following parts by weight: aluminosulfate cement 40 parts, 12 parts, flyash, 45 parts, 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, the aluminosulfate cement of described parts by weight, flyash, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether and polypropylene fibre is comprised the steps: to mix, after stirring at normal temperatures, add nano-pearl rock and the water reducer of described parts by weight again, again stir, namely obtain described nano-pearl rock heat insulating mortar.
Wherein, the particle diameter of described nano-pearl rock is 1.5mm, and thermal conductivity is 0.02W/m.k.
Embodiment 5(every part is 3kg)
A kind of nano-pearl rock heat insulating mortar, be made up of each raw material of following parts by weight: aluminosulfate cement 35 parts, 5 parts, flyash, 35 parts, 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, the aluminosulfate cement of described parts by weight, flyash, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether and polypropylene fibre is comprised the steps: to mix, after stirring at normal temperatures, add nano-pearl rock and the water reducer of described parts by weight again, again stir, namely obtain described nano-pearl rock heat insulating mortar.
Wherein, the particle diameter of described nano-pearl rock is 2mm, and thermal conductivity is 0.03W/m.k.
The preparation method of described nano-pearl rock is as follows: be soaked in by pearlstone in the nano silicon dioxide sol prepared in advance, adopt vacuum impregnation absorbing process, nano silicon dioxide sol is made to suck in pearlstone cavity, form gel, after to be aging, hydrophobic process dry by normal pressure classification forms nano-pearl rock.

Claims (6)

1. a nano-pearl rock heat insulating mortar, it is characterized in that, be made up of each raw material of following parts by weight: aluminosulfate 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.
2. nano-pearl rock heat insulating mortar according to claim 1, it is characterized in that, the preparation method of described nano-pearl rock is as follows: be soaked in by pearlstone in the nano silicon dioxide sol prepared in advance, adopt vacuum impregnation absorbing process, nano silicon dioxide sol is made to suck in pearlstone cavity, form gel, after to be aging, hydrophobic process dry by normal pressure classification forms nano-pearl rock.
3. nano-pearl rock heat insulating mortar according to claim 2, is characterized in that: be presoma with tetraethoxy when preparing nano silicon dioxide sol.
4. nano-pearl rock heat insulating mortar according to claim 2, is characterized in that: use the dehydrated alcohol of purity 99% as organic solvent when preparing nano silicon dioxide sol.
5. nano-pearl rock heat insulating mortar according to claim 1 and 2, is characterized in that: the particle diameter of described nano-pearl rock is 0.5-2mm, and thermal conductivity is 0.02-0.04W/m.k.
6. the preparation method of nano-pearl rock heat insulating mortar as claimed in claim 1, it is characterized in that, the aluminosulfate cement of described parts by weight, flyash, silicon ash, redispersible latex powder, hydroxypropyl methyl cellulose ether and polypropylene fibre is comprised the steps: to mix, after stirring at normal temperatures, add nano-pearl rock and the water reducer of described parts by weight again, again stir, namely obtain described nano-pearl rock heat insulating mortar.
CN201410804416.9A 2014-12-23 2014-12-23 Nano-pearl rock heat insulating mortar and preparation method thereof Active CN104529345B (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104909666A (en) * 2015-06-11 2015-09-16 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
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
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
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

Citations (3)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104909666A (en) * 2015-06-11 2015-09-16 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
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
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
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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