CN101696103B - Masonry mortar for light building wall and construction method thereof - Google Patents
Masonry mortar for light building wall and construction method thereof Download PDFInfo
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- CN101696103B CN101696103B CN 200910110403 CN200910110403A CN101696103B CN 101696103 B CN101696103 B CN 101696103B CN 200910110403 CN200910110403 CN 200910110403 CN 200910110403 A CN200910110403 A CN 200910110403A CN 101696103 B CN101696103 B CN 101696103B
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Abstract
A masonry mortar is prepared by mixing the following components in part by weight: 25-30 parts of ordinary silicate, 25-30 parts of cement, 4-5 parts of white lime, 5-8 parts of light aggregate, 56-65 parts of heavy aggregate (ordinary bank sand) and 1.0 part of C-type composite accessory ingredient, wherein the fineness of the light aggregate is less than that of 100-mesh inorganic vitrified hollow microporous material; and the C-type composite accessory ingredient is sold by Guangzhou Composite Commercial Company. The construction method comprises the following steps that: the masonry mortar is diluted by adding water in an amount which is 30-50 percent of the weight of the masonry mortar; and the mixture is stirred mechanically or manually until the mixture is mixed well and reaches the viscosity which is suitable for mechanical spray-finishing process and manually construction. The invention has the following advantages that: the masonry mortar is light and energy-saving; the masonry mortar, used with the light wall, can prevent cracking and falling off and can guarantee the quality of the building construction; the masonry mortar is heat insulated and reduces noise; the cost for unit area is low; and the masonry mortar is suitable for mechanical construction and the process is simple.
Description
Technical field
The present invention relates to a kind of mortar for building, especially relate to masonry mortar and constructional method thereof that the indoor partition wall of a kind of lightweight is used.
Background technology
The building wall of buildings is an important component part of construction project, simultaneously also is the basic engineering of realizing the buildings functions of use.(air-entrained concrete building block for example, its proportion is approximately 600-800Kg/m developing and apply novel wall material energetically
3, when thermal conductivity is 0.14-0.20W/ (25 ℃ of mK), the quality problems of body of wall are also more and more, comprising:
1. used masonry mortar, its component and weight proportion are generally cement 12-20, white lime: 0-6, limestone sand 60-80, additive 0.03-0.07, and the proportion of this mortar is 1700-1800Kg/m
3, lightweight not causes that consumptive material is many, the carriage vertically burden is heavy, not energy-conservation; Cause grey pulp grinder to block up pump, plugging, stifled rifle, hinder mechanized construction to carry out smoothly, operating efficiency is low.
2. the Young's modulus of existing masonry mortar is obviously greater than the Young's modulus of air-entrained concrete building block, do not match with the Young's modulus of air-entrained concrete building block, causes the interface of plastering to produce bigger deformation stress and produces hollowing, cracking then.
3. the thermal conductivity of existing masonry mortar is higher, and its thermal conductivity approximately is 0.93W/ (25 ℃ of m.K), produces " heat bridge " effect etc. and causes contraction deformation, makes interfacial failure and to produce cracking, seepage and heat preservation and insulation poor.
4. workability is poor, often needs water-wet is watered in building block before building wall, and operation is loaded down with trivial details.
At present, in mortar for building field, commerical ready-mixed concrete is in the process of high speed steady progression, and commodity mortar also is the developing new trend of urban architecture adnornment industry, common dry-mix has belonged to the novel product category, and the lighting field of mortar also relates to regard to rarer people.
Summary of the invention
The invention provides a kind of being suitable for the supporting use of light building wall, to prevent from ftractureing, come off and to be beneficial to the light energy conservation masonry mortar of mechanized construction, simultaneously, the present invention also provides its constructional method.
For addressing the above problem, we are according to the thinking of lighting, adopt special light-weight aggregate to reduce the proportion of masonry mortar, make it lightweight, good grain composition is provided simultaneously, and make the Young's modulus coupling of its Young's modulus and lightweight body of wall basic unit, also reduce thermal conductivity, reduce heat bridge effect, like this, when making the supporting use of masonry mortar of the present invention and light building wall, effectively prevent cracking, come off and be beneficial to mechanized construction; Simultaneously, the present invention also adopts special composite assistant to improve the mortar workability, has reached extraordinary construction effect.Technical scheme of the present invention is:
A kind of masonry mortar is characterized in that, is mixed by the component of following weight proportion:
Ordinary Portland cement 25-30
White lime 4-5
Light-weight aggregate 5-8
Heavy aggregate 56-65
C type composite assistant 1.0;
Described light-weight aggregate is that fineness is lower than the inorganic vitreous hollow microporous material of 100 purposes;
Described heavy aggregate is common river sand;
Described C type composite assistant is the C type composite assistant of the synthetic trading company in Guangzhou.
Further technical scheme is:
Described inorganic vitreous hollow microporous material fineness is the 60-100 order.
The fineness of described common river sand is the 25-50 order.
Described ordinary Portland cement is the black cement that is greater than or equal to the R325 model; The fineness of described white lime is more than 300 orders.
Contain lignocellulose in the described C type composite assistant.
Preferred masonry mortar is characterized in that, is mixed by the component of following weight proportion:
Ordinary Portland cement 30
White lime 4
Light-weight aggregate 6
Heavy aggregate 59
C type composite assistant 1.
Simultaneously, the present invention also provides a kind of constructional method of described masonry mortar: with the 30-50% thin up of described masonry mortar by its weight, mechanical or manual stirring reaches the viscosity that is fit to mechanically spraying or manual construction until mixing, can mechanically spraying or manual construction.
As follows by the light energy conservation masonry mortar beneficial effect that said components and weight proportion are produced:
The main particle diameter of the ordinary Portland cement that the present invention is used is less than 0.08mm (national Specification, what particle diameter 0.08mm was above must not surpass 10%), and the white lime fineness is 300 orders above (particle diameter is about 0-0.048mm), they belong to fine particle; The used light-weight aggregate of the present invention is inorganic vitreous hollow microporous material, and fineness is 60-100 order the best (particle diameter is about 0.15-0.25mm), and it belongs to middle particle; The fineness of the sand that the present invention is used is preferably 25-50 order (particle diameter is about 0.30-0.60mm), belongs to coarse particles.Like this, in the masonry mortar component of the present invention, in the 0-0.6mm particle size range, size distribution is arranged, grain composition is better, it is comparatively closely knit that this just makes storeroom fill, the ultimate compression strength of the masonry mortar after the sclerosis just strengthens thereupon, can reduce the racking stress deformation that produces at the interface of plastering, and effectively reduces interfacial failure and the hollowing, the cracking that produce.Good grain composition also makes masonry mortar of the present invention can be used in mechanized construction, is conducive to pumping (grading curve becomes positive correlation with its pumping, and grating is more good, and pumping is more good).
Adding inorganic vitreous hollow microporous material has increased the space of mortar, reduces the whole proportion of mortar greatly, and mortar is done apparent density (Kg/m
3) can be low to moderate 800-1200, fundamentally solve the hollowing that produces because mortar ratio is great, ftracture, come off; Masonry mortar lightweight of the present invention has the Young's modulus that is complementary with lightweight body of wall basic unit, like this, just can not produce bigger deformation stress at the interface of plastering because Young's modulus does not match, and has therefore avoided interfacial failure and produces hollowing, cracking; Masonry mortar lightweight of the present invention has also solved the stifled pump, plugging, the stifled rifle problem that produce because mortar ratio is great, is conducive to mechanized construction.Adopt inorganic vitreous hollow microporous material also to increase porosity, reduced the material usage of unit surface, because lighting, the vertical-lift weight of mortar also reduces thereupon greatly, thereby reaches effectively energy-conservation.Also effectively reduce the cost cost of unit surface.
After the mortar lighting, proportion reduces to make thermal conductivity also to decrease, and (W/ (25 ℃ of mK) between 0.18-0.40, is equivalent to the thermal conductivity of autoclave aerated concrete building block to the thermal conductivity of masonry mortar of the present invention.So effectively avoid metope dewfall that " heat bridge effect " cause, mouldy even drip, avoid producing hollowing, cracking phenomena, effectively reduced shrinkage strain.Heat-proof quality also improves (thermal conductivity is used for characterizing heat preservation and insulation, and its value is more little, and heat-insulation and heat-preservation is more good) greatly.
Adopt masonry mortar of the present invention; improved the volume stability of sclerosis mortar; guarantee the quality of construction work: 1) when moisture enters the hole of petrifying water mudstone, only can produce less expansion; and when mixing after the inorganic vitreous hollow microporous material mortar hardening; more water enters in the pore; although thereby water regain increases, expanding reduces.Like this, this distortion trend between screed and the basic unit is consistent, guarantees the stability of wall size to greatest extent, and it is concentrated and ftracture to reduce the local stress of hardened layer.2) because heavy aggregate dry-shrinkage deformed less produces less interaction, dry-shrinkage deformed minimizing thereby make between sclerosis mortar and the basic unit.3) micropore of inorganic vitreous hollow microporous material can stop the development of microfracture in the mortar block of sclerosis back, reduces cracking.
Contain lignocellulose in the C type composite assistant, has powerful crosslinked darning function, mix with components such as cement, light-weight aggregate, heavy aggregates between the fiber of back and constitute 3-D solid structure, staple length is more long, and it is more good that the surface interweaves, can be included in water wherein simultaneously, like this, make the effective combination of all components, improve the water retention property of mortar, minimizing is seriously discrete because of temperature, the inhomogeneous water regain of basic unit that makes of humidity, thereby reduces hollowing, dry and cracked.
After the lighting, relatively moving easily between the different particle of the various particle diameters in the mortar, be that flowability has improved, intergranular sliding-frictional resistance has diminished, it is more sliding that quality becomes, it is more smooth and easy that the mortar plaster is got up, and the use of the C type composite assistant of the synthetic trading company in lighting and Guangzhou makes the workability of masonry mortar of the present invention improve, and has improved operating efficiency and construction quality greatly.The water-retentivity of denseness indication and mobile two aspects have all improved, and namely the denseness of mortar is better, sagging can not occur, can once smear thicker ash.Hydration reaction and infiltration are just more abundant, improve mortar quality (denseness is one of characteristic index of mortar quality).
After adopting inorganic vitreous hollow microporous material light-weight aggregate, the masonry mortar volume density is less, and no longer because deadweight causes sagging cracking, the light dead-weight building can effectively improve the building safety anti-seismic performance.Thermal conductivity reduces, and improves heat insulation decrease of noise functions, and the consumptive material of Jian Shaoing and vertical-lift weight reach energy-saving effect simultaneously.Splitting resistance is good, for follow-up dress levelling operation provides more stable basal plane.It is more suitable for mechanized construction.Features simple and practical process, unit square rice cheap.
Embodiment
Each component of masonry mortar of the present invention is all selected currently available products for use, and each composition weight of embodiment 1-4 sees Table shown in one:
Table one
| Sequence number | Material name | Producer's model | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| 1 | Ordinary Portland cement | General | 25 kilograms | 28 kilograms | 30 kilograms | 30 kilograms |
| 2 | White lime | General | 4 kilograms | 5 kilograms | 4 kilograms | 5 kilograms |
| 3 | Light-weight aggregate | China's Henan mining industry | 5 kilograms | 6 kilograms | 6 kilograms | 8 kilograms |
| 4 | Heavy aggregate | General | 65 kilograms | 60 kilograms | 59 kilograms | 56 kilograms |
| 5 | C type composite assistant | Guangzhou is synthetic | 1 kilogram | 1 kilogram | 1 kilogram | 1 kilogram |
Above-mentioned ordinary Portland cement, white lime, heavy aggregate (river sand) all adopt this area universal models; Ordinary Portland cement is the black cement that is greater than or equal to the R325 model; The fineness of white lime is more than 300 orders; Described light-weight aggregate is that preferred fineness is the inorganic vitreous hollow microporous material of 60-100 purpose; Described heavy aggregate is that preferred fineness is the common river of 25-50 purpose sand; Described C type composite assistant is the C type composite assistant of the synthetic trading company in Guangzhou, and it contains lignocellulose, and this C type composite assistant is the mixture with over-all propertieies such as water conservation, sag prevention and bleeds.
Below in conjunction with specific embodiment technical scheme of the present invention is described.
Embodiment 1:
Get each component, production technique according to weight shown in the embodiment in the table one 1:
Ordinary Portland cement, white lime, light-weight aggregate, heavy aggregate and composite assistant are mixed, even with mechanical stirring, namely obtain the masonry mortar of present embodiment 1, with paper bag packing or in bulkly all can.
Constructional method: the masonry mortar that present embodiment is obtained adds water for 100 kilograms and dilutes for 30 kilograms, and mechanical or manual stirring reaches the experience viscosity that is fit to mechanically spraying or manual construction and can carry out automatic arc spraying or handwork until mixing.
Do Performance Detection by national standard or industry standard and (do the detection of surface density according to being GB/T20473-2006, the detection foundation of thermal conductivity is GB/T 102951988, the detection foundation of ultimate compression strength, drying shrinkage value is GB/T 11968-2006, the detection foundation of 28d cohesive strength is SJG11-2004), the result is shown in 1 corresponding data of embodiment in the table two.
Embodiment 2:
According to weight shown in the embodiment in the table one 2 get each component, (only each composition weight changes) obtains the masonry mortar of embodiment 2 to repeat embodiment 1 described production technique.
The masonry mortar that embodiment 2 is obtained adds water for 100 kilograms and dilutes for 40 kilograms, and the constructional method that repeats among the embodiment 1 is constructed.
Carry out every Performance Detection with embodiment 1 described standard, the result is shown in 2 corresponding datas of embodiment in the table two.
Embodiment 3:
According to weight shown in the embodiment in the table one 3 get each component, (only each composition weight changes) obtains the masonry mortar of embodiment 3 to repeat embodiment 1 described production technique.
The masonry mortar that embodiment 3 is obtained adds water for 100 kilograms and dilutes for 50 kilograms, and the constructional method that repeats among the embodiment 1 is constructed.
Carry out every Performance Detection with embodiment 1 described standard, the result is shown in 3 corresponding datas of embodiment in the table two.
Embodiment 4:
According to weight shown in the embodiment in the table one 4 get each component, (only each composition weight changes) obtains the masonry mortar of embodiment 4 to repeat embodiment 1 described production technique.
The masonry mortar that embodiment 4 is obtained adds water for 100 kilograms and dilutes for 40 kilograms, and the constructional method that repeats among the embodiment 1 is constructed.
Carry out every Performance Detection with embodiment 1 described standard, the result is shown in 4 corresponding datas of embodiment in the table two.
Table two
| Sequence number | Project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| 1 | Do surface density, kg/m 3 | 1170 | 1080 | 960 | 850 |
| 2 | Thermal conductivity, W/ (mK) | 0.36 | 0.31 | 0.25 | 0.20 |
| 3 | The 28d cohesive strength, MPa | 0.43 | 0.48 | 0.52 | 0.50 |
| 4 | Ultimate compression strength, MPa | 2.71 | 3.32 | 3.54 | 3.21 |
| 5 | Drying shrinkage value, mm/m | 0.30 | 0.25 | 0.20 | 0.20 |
Claims (4)
1. a masonry mortar is characterized in that, is mixed by the component of following weight proportion:
Described light-weight aggregate is that fineness is lower than the inorganic vitreous hollow microporous material of 100 purposes;
Described heavy aggregate is common river sand;
Described C type composite assistant is the C type composite assistant of the synthetic trading company in Guangzhou;
Described inorganic vitreous hollow microporous material fineness is the 60-100 order;
The fineness of described common river sand is the 25-50 order;
Described ordinary Portland cement is the black cement that is greater than or equal to the R325 model; The fineness of described white lime is more than 300 orders.
2. masonry mortar according to claim 1 is characterized in that, contains lignocellulose in the described C type composite assistant.
3. masonry mortar according to claim 1 is characterized in that, is mixed by the component of following weight proportion:
4. the described masonry mortar of claim 1, its constructional method is: with the 30-50% thin up of described masonry mortar by its weight, mechanical or manual stirring reaches the viscosity that is fit to mechanically spraying or manual construction until mixing, can mechanically spraying or manual construction.
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| CN 200910110403 CN101696103B (en) | 2009-10-29 | 2009-10-29 | Masonry mortar for light building wall and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910110403 CN101696103B (en) | 2009-10-29 | 2009-10-29 | Masonry mortar for light building wall and construction method thereof |
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| CN101696103B true CN101696103B (en) | 2013-07-03 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037319A (en) * | 2007-03-29 | 2007-09-19 | 宋连伟 | Outer wall heat preservation dry-powder mortar for construction |
| CN101298380A (en) * | 2008-06-25 | 2008-11-05 | 江苏欧兰特新材料股份有限公司 | Mortar for heat insulation system of internal and external walls |
| CN101337798A (en) * | 2008-08-16 | 2009-01-07 | 闵博乾 | Polymers anti-cracking mortar |
| CN101412608A (en) * | 2008-11-03 | 2009-04-22 | 深圳市广田环保涂料有限公司 | Composite foam mortar, and preparation and construction method thereof |
-
2009
- 2009-10-29 CN CN 200910110403 patent/CN101696103B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101037319A (en) * | 2007-03-29 | 2007-09-19 | 宋连伟 | Outer wall heat preservation dry-powder mortar for construction |
| CN101298380A (en) * | 2008-06-25 | 2008-11-05 | 江苏欧兰特新材料股份有限公司 | Mortar for heat insulation system of internal and external walls |
| CN101337798A (en) * | 2008-08-16 | 2009-01-07 | 闵博乾 | Polymers anti-cracking mortar |
| CN101412608A (en) * | 2008-11-03 | 2009-04-22 | 深圳市广田环保涂料有限公司 | Composite foam mortar, and preparation and construction method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 肖力光.材料因素对保温砌筑砂浆性能的影响.《墙材革新与建筑节能》.2004,(第2期),全文. * |
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Inventor after: Li Shaoqiang Inventor after: Yan Xufei Inventor after: Huang Wei Inventor after: Chang Xiangwei Inventor after: Wu Hongjuan Inventor before: Li Shaoqiang Inventor before: Zhang Qishan |
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Address after: Luohu District Shenzhen Shennan Road 518000 Guangdong province No. 2098 building Hirota Shenghua group Patentee after: Shenzhen Guangtian group Limited by Share Ltd Address before: Luohu District Shenzhen City, Guangdong province 518003 along North Road, No. 1003. The East will 1~2 Beijing Patentee before: Shenzhen Guangtian Decoration Group Co., Ltd. |