CN100453496C - Mortar - Google Patents

Mortar Download PDF

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Publication number
CN100453496C
CN100453496C CNB2005100484231A CN200510048423A CN100453496C CN 100453496 C CN100453496 C CN 100453496C CN B2005100484231 A CNB2005100484231 A CN B2005100484231A CN 200510048423 A CN200510048423 A CN 200510048423A CN 100453496 C CN100453496 C CN 100453496C
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China
Prior art keywords
parts
mortar
low basicity
cement
caso
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CNB2005100484231A
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Chinese (zh)
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CN1951858A (en
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王红
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王红
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Publication of CN100453496C publication Critical patent/CN100453496C/en

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Abstract

The invention discloses a mortar, which comprises the following parts: 250-350 parts of low-alkaline special typed cement, 0-250 parts of common silicate cement, 0-200 parts of calcium sulfate, 300-2400 parts of filler or aggregate, 2-20 parts of cellulose, 10-400 parts of redispersion polymer gel powder or 10-400 parts of polymer emulsion, 2-20 parts of fiber, 0.5-10 parts of retarder and 3-25 parts of instant coagulant. The low-alkaline cement contains the following clinker with 15%-35% C4A3S, 15%-35% C2S, 0%-35% C3S, 4%-15% CaSO4, 0%-15% C4AF and 0%-5% C3A . The mortar with low-alkaline cement and water can be preserved for 1-7d, whose pH value is 8-9.5.

Description

A kind of mortar
Technical field
The present invention relates to a kind of matrix material for building, particularly relate to a kind of mortar.
Background technology
Existing dry-mix or two-component polymer mortar all adopt ordinary Portland cement (ash concrete or white cement), grey calcium powder or dry hydrate, quartz sand, Paris white (coarse whiting, dry powder, limestone powder), wollastonite powder or talcum powder etc. to add methyl or Vltra tears, fiber etc. again, add the redispersible polymer rubber powder in addition again and are made into dry-mix or are mixed with the two-component polymer mortar jointly with polymer emulsion.Above-mentioned mortar can be used as the putty layer of exterior wall in the adhesive mortar of external thermal insulation system and motar layer, the buildings, can be used as the binding agent and the jointing agent of marble, granite, ceramic tile, can be used as mending mortar, gravity flow self-leveling floor mortar and dry powder paint etc.The main mineral binder bond of above-mentioned mortar is ordinary Portland cement and grey calcium powder or dry hydrate, the pH value that this mineral binder bond adds behind the water is respectively 13 or 14, alkalescence is very high, and because the cohesive strength of lime mortar, fragility is big, drying shrinkage, carbonization is shunk big, easily cause dried screed ftractureed the drum etc., high alkalinity has bigger corrodibility to polymkeric substance, corrodibility to glass fiber reticular cloth is bigger, easily cause grid cloth fracture in the outer heat preservation system motar layer, coat of plaster comes off, phenomenons such as the topcoating accumulation of salt in the surface soil are pasted granite, easily cause stone surface to regret flower during marble etc., phenomenons such as general moisture.
Summary of the invention
The purpose of this invention is to provide a kind of mortar, 1~7 day pH value of this mortar remains on 8~9.5, has early strong, the fast advantages such as contraction, high fillibility of doing, hang down.
For achieving the above object, the present invention adopts following technical scheme: a kind of mortar, contain following component: 10~400 parts of 250~350 parts of low basicity special cements, 0~250 part of ordinary Portland cement, 0~200 part in gypsum, filler or 300~2400 parts in aggregate, 2~20 parts of Mierocrystalline celluloses, 10~400 parts of redispersible polymer rubber powders or polymer emulsions by weight.
The present invention also can contain 2~20 parts of fibers, and the effect of fiber is to improve the splitting resistance and the workability of mortar.Described fiber is one or more the combination in wood fibre or itself and polypropylene fibre, glass fibre, polyvinyl alcohol fiber, the carbon fiber.
Also contain 0.5~10 part of retardant, 3~25 parts of hardening accelerator, the effect of retardant is to control the serviceable time of mortar, is convenient to adjust according to construction environment.The effect of hardening accelerator is to improve the early strength of mortar, is beneficial to winter construction.
Described Mierocrystalline cellulose is methylcellulose gum or Vltra tears or both combinations, and cellulosic effect is to improve the cohesive strength and the workability of mortar.
Described filler or aggregate are the combination of quartz sand or Paris white or quartz sand and Paris white.
Described low basicity special cement contains following mineral clinker component: C by weight percentage 4A 3S15%~35%, C 2S 15%~35%, C 3S 0%~35%, CaSO 44%~15%, C 4AF 0%~15%, C 3A 0%~5%.
Described low basicity special cement also contains CaCO 31.5%~5% or/and SiO 21.5%~5%.
Because the present invention has adopted low basicity special cement, its pH value of 1~7 day remained on 8~9.5 after made mortar added water, have early strong, fast doing, the low contraction, advantages such as high fillibility, it is big to have overcome ordinary mortar fragility, drying shrinkage, carbonization is shunk big, easily cause dried screed ftractureed the drum etc. defective, corrodibility to polymkeric substance and glass fiber reticular cloth is little, can not cause grid cloth fracture in the outer heat preservation system motar layer, coat of plaster comes off, phenomenons such as the topcoating accumulation of salt in the surface soil are pasted granite, can not cause stone surface to regret flower during marble etc. yet, phenomenons such as general moisture.
After tested, the salient features of mortar of the present invention is: can be controlled in time of coagulation between 1.5~6 hours, pH value (1~7 day) is 8~9.5, cohesive strength (12 hours) 〉=0.6MPa.
Embodiment
Form with the embodiment tabulation provides embodiments of the invention below:
In the embodiment tabulation, there is not this corresponding component among this embodiment of "-" symbolic representation.
In the present invention, ordinary Portland cement and gypsum can not use simultaneously yet, when itself and other component compatibility, more embodiment can be arranged, and these are all in protection scope of the present invention.
In each embodiment, low basicity special cement can adopt commercially available low basicity special cement, also can adopt the low basicity special cement of making according to the mineral clinker of following weight percent: C 4A 3S 15%~35%, C 2S 15%~35%, C 3S 0%~35%, CaSO 44%~15%, C 4AF 0%~15%, C 3A 0%~5%.
In this low basicity special cement, also can add CaCO 31.5%~5% or/and SiO 21.5%~5%.
Described low basicity special cement is meant the special cement that pH value is lower.
As the embodiment of this low basicity special cement, each component can be made according to following different weight percent:
Low basicity special cement embodiment 1:C 4A 3S 26%, C 2S 30%, C 3S 25%, CaSO 410%, C 4AF 4%, C 3A 5%.
Low basicity special cement embodiment 2:C 4A 3S 15%, C 2S 35%, C 3S 35%, CaSO 44.5%, C 4AF 9%, C 3A 1.5%.
Low basicity special cement embodiment 3:C 4A 3S 35%, C 2S 15%, C 3S 17%, CaSO 415%, C 4AF 15%, C 3A3%.
Low basicity special cement embodiment 4:C 4A 3S 20%, C 2S 25%, C 3S 25%, CaSO 410%, C 4AF 10%, C 3A 5%, CaCO 35% or SiO 25%.
Low basicity special cement embodiment 5:C 4A 3S 35%, C 2S 15%, C 3S 15%, CaSO 415%, C 4AF 15%, C 3A 3%, CaCO 32% or SiO 22%.
Low basicity special cement embodiment 6:C 4A 3S 15%, C 2S 35%, C 3S 35%, CaSO 44%, C 4AF 4%, C 3A 5%, CaCO 32% or SiO 22%.
Low basicity special cement embodiment 7:C 4A 3S 33%, C 2S 15%, C 3S 15%, CaSO 415%, C 4AF 15%, C 3A 3%, CaCO 32%, SiO 22%.
Low basicity special cement embodiment 8:C 4A 3S 20%, C 2S 25%, C 3S 25%, CaSO 410%, C 4AF 10%, C 3A 5%, CaCO 33.5%, SiO 21.5%.
Low basicity special cement embodiment 9:C 4A 3S 15%, C 2S 35%, C 3S 35%, CaSO 44%, C 4AF 4%, C 3A 1.5%, CaCO 34%, SiO 21.5%.
Low basicity special cement embodiment 10:C 4A 3S 35%, C 2S 35%, CaSO 415%, C 4AF 8%, C 3A 1.5%, CaCO 34%, SiO 21.5%.
Low basicity special cement embodiment 11:C 4A 3S 15%, C 2S 35%, C 3S 35%, CaSO 48%, C 3A 1.5%, CaCO 34%, SiO 21.5%.
Low basicity special cement embodiment 12:C 4A 3S 25%, C 2S 25%, C 3S 25%, CaSO 415%, C 4AF 4%, CaCO 34%, SiO 22%.
Low basicity special cement embodiment 13:C 4A 3S 35%, C 2S 35%, CaSO 415%, C 4AF 10%, C 3A 5%.
Low basicity special cement embodiment 14:C 4A 3S 18%, C 2S 30%, C 3S 35%, CaSO 415%, C 3A 2%.
Low basicity special cement embodiment 15:C 4A 3S 25%, C 2S 25%, C 3S 25%, CaSO 410%, C 4AF 15%.
This low basicity special cement has low alkali, high-strength, fast hard, fast characteristic such as do, and 1~7 day pH value of this cement is 8~9.5.Salient features is: time of coagulation: about about 10 minutes of initial set, and about 1 and a half hours of final set, ultimate compression strength (Mpa): 32.5/ day, 45.3/3 day, 56.5/7 day, folding strength (Mpa): 6.8/ day, 7.5/3 day, 9/7 day.Because its pH value is low, therefore when it is used for mortar, not composition such as perishable fiber, the fine needs that satisfy rapid construction of performance such as its setting time and intensity in addition.
In the present invention, when containing the redispersible polymer rubber powder in the component, the mortar that is mixed with is a dry-mix, and when containing polymer emulsion in the component, the mortar that is mixed with is the two-component polymer mortar.
In the embodiment of the invention 1~21, filler or aggregate can be quartz sand or Paris white, or the combination of quartz sand and Paris white, also can select for use to be other appropriate filler well known to those skilled in the art or aggregate.When adopting the combination of quartz sand and Paris white, their proportioning can be optional, as long as total make its consumption reach 500~2400 parts.So-called filler is meant addition material such as the Paris white that particle is less, and aggregate is meant addition material such as the quartz sand that particle is bigger.
In the embodiment of the invention 1~21, described Mierocrystalline cellulose is methylcellulose gum or Vltra tears or both combinations, also can select for use to be other alternative Mierocrystalline celluloses well known to those skilled in the art.When adopting the combination of methylcellulose gum and Vltra tears, their proportioning can be optional, as long as total make its consumption reach 2~20 parts.
In the embodiment of the invention 1~21, described Mierocrystalline cellulose is methylcellulose gum or Vltra tears or both combinations, also can select for use to be other alternative Mierocrystalline celluloses well known to those skilled in the art.When adopting the combination of methylcellulose gum and Vltra tears, their proportioning can be optional, as long as total make its consumption reach 2~20 parts.
In the embodiment of the invention 7~15 and 19~21, described fiber is one or more the combination in wood fibre or itself and polypropylene fibre, glass fibre, polyvinyl alcohol fiber, the carbon fiber, also can select for use to be other alternative fibers well known to those skilled in the art.During the combination of one or more in adopting wood fibre and polypropylene fibre, glass fibre, polyvinyl alcohol fiber, carbon fiber, their proportioning can be optional, as long as total make its consumption reach 2~20 parts.
The used retardant of the present invention can be citric acid, boric acid, tartrate etc., also can be other alternative retardant well known to those skilled in the art.
The used hardening accelerator of the present invention can be calcium formiate, also can be other alternative hardening accelerator well known to those skilled in the art.

Claims (9)

1, a kind of mortar, it is characterized in that, contain following component by weight: 10~400 parts of 250~350 parts of low basicity special cements, 0~250 part of ordinary Portland cement, 0~200 part in gypsum, filler or 300~2400 parts in aggregate, 2~20 parts of Mierocrystalline celluloses, 10~400 parts of redispersible polymer rubber powders or polymer emulsions, wherein said low basicity special cement contains following mineral clinker component: C by weight percentage 4A 3S15%~35%, C 2S 15%~35%, C 3S 0%~35%, CaSO 44%~15%, C 4AF 0%~15%, C3A 0%~5%.
2, mortar as claimed in claim 1 is characterized in that, also contains 2~20 parts of fibers.
3, mortar as claimed in claim 2 is characterized in that, described fiber is one or more the combination in wood fibre or itself and polypropylene fibre, glass fibre, polyvinyl alcohol fiber, the carbon fiber.
4, mortar as claimed in claim 3 is characterized in that, also contains 0.5~10 part of retardant, 3~25 parts of hardening accelerator.
As claim 1,2,3 or 4 described mortars, it is characterized in that 5, described Mierocrystalline cellulose is methylcellulose gum or Vltra tears or both combinations.
As claim 1,2,3 or 4 described mortars, it is characterized in that 6, described filler or aggregate are the combination of quartz sand or Paris white or quartz sand and Paris white.
As claim 1,2,3 or 4 described mortars, it is characterized in that 7, described low basicity special cement also contains CaCO 31.5%~5% or/and SiO 21.5%~5%.
8, mortar as claimed in claim 5 is characterized in that, described low basicity special cement contains following mineral clinker component: C by weight percentage 4A 3S 15%~35%, C 2S 15%~35%, C 3S0%~35%, CaSO 44%~15%, C 4AF 0%~15%, C 3A 0%~5%, CaCO 31.5%~5% or/and SiO 21.5%~5%.
9, mortar as claimed in claim 6 is characterized in that, described low basicity special cement contains following mineral clinker component: C by weight percentage 4A 3S 15%~35%, C 2S 15%~35%, C 3S0%~35%, CaSO 44%~15%, C 4AF 0%~15%, C 3A 0%~5%, CaCO 31.5%~5% or/and SiO 21.5%~5%.
CNB2005100484231A 2005-10-20 2005-10-20 Mortar CN100453496C (en)

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CN100453496C true CN100453496C (en) 2009-01-21

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WO2011158109A1 (en) * 2010-06-18 2011-12-22 Cemex Research Group Ag Clinker and method for preparing a hydraulic cement with low co2 emission and high resistance

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CA2737966A1 (en) * 2008-09-22 2010-03-25 Dow Global Technologies Llc Composite structure for exterior insulation applications
CN102050607A (en) * 2010-08-25 2011-05-11 潍坊绿城低碳建筑科技有限公司 Inorganic bonding mortar for plate assembly type enclosing and filling system building
CN102432252B (en) * 2011-09-07 2016-01-20 武汉奥捷高新技术有限公司 Anti-accumulation of salt in the surface soil type joint filling mortar
WO2013040788A1 (en) * 2011-09-23 2013-03-28 Rohm And Haas Company Low temperature mortar for exterior insulation finish system
CN102442812A (en) * 2011-09-30 2012-05-09 浙江每天建材科技有限公司 Mildew-proof and water-proof plastering mortar
CN102503324B (en) * 2011-11-22 2014-07-09 中建材中岩科技有限公司 Anchoring grouting material as well as preparation method and application thereof
WO2013086722A1 (en) * 2011-12-15 2013-06-20 Dow Global Technologies Llc Dry mix formulations containing carboxylated styrene-butadiene redispersible polymer powders and alumina rich containing cements
BR112014020792B1 (en) 2012-03-09 2020-09-29 Dow Global Technologies Llc COMPOSITION OF REDISPERSIBLE POLYMER POWDER IN WATER, ADHESIVE COMPOSITION OF DRY MIXTURE CEMENT FOR TILES, AND, DRY MIXTURE COMPOSITION
CN103664055A (en) * 2012-09-15 2014-03-26 南京沪联新型建材有限公司 Polymer mortar and mixing method thereof
EP3279172A1 (en) 2013-03-07 2018-02-07 STO SE & Co. KGaA Dry composition containing cement and method for improving the storage stability a dry composition containing cement
AU2013403634B2 (en) * 2013-10-21 2016-09-08 Envirocem, S.L. Lightweight concretes and mortars
CN104710137A (en) * 2013-12-13 2015-06-17 许勤峰 Surface mortar for heat insulation of exterior walls
CN103951365B (en) * 2014-04-15 2016-04-13 华南理工大学 Silicate cement-aluminosulfate cement-gypsum-polymer composite water-proof mortar and preparation method thereof
CN105330195A (en) * 2014-07-23 2016-02-17 瓦克化学股份公司 Additive for mineral solidification aqueous mortar composition
CN105623327A (en) * 2014-11-04 2016-06-01 赵燕 Dry powder paint
CN104402361A (en) * 2014-11-19 2015-03-11 徐州卧牛山新型防水材料有限公司 Water-resistant adhesive for ceramic tiles
CN104692742A (en) * 2015-02-15 2015-06-10 李文超 Nano polymer anti-cracking and waterproof mortar
CN104831885A (en) * 2015-04-03 2015-08-12 重庆思贝肯节能技术开发有限公司 Fiber reinforcement foaming cement thermal insulation decoration board
CN106592815A (en) * 2016-12-07 2017-04-26 河北工业大学 Manufacturing method of brick wall with high shear resistance and shock resistance
CN107814532A (en) * 2017-11-09 2018-03-20 安徽本雅明涂料有限公司 A kind of polymer-modified cement mortar and its preparation technology
CN109485332A (en) * 2018-11-08 2019-03-19 广东同创科鑫环保有限公司 A kind of marble back gluing and preparation method thereof based on stone waste sludge material

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011158109A1 (en) * 2010-06-18 2011-12-22 Cemex Research Group Ag Clinker and method for preparing a hydraulic cement with low co2 emission and high resistance
WO2011158105A1 (en) * 2010-06-18 2011-12-22 Cemex Research Group Ag Method for producing a clinker for hydraulic cement with low co2 emission and high resistance
FR2961505A1 (en) * 2010-06-18 2011-12-23 Cemex Res Group Ag Clinker and method for preparing hydraulic cement with low co2 emission and high strength
US8715411B2 (en) 2010-06-18 2014-05-06 Cemex Research Group Ag Method for producing a clinker for hydraulic cement with low CO2 emission and high resistance

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