CN104261723A - Dry powder additive for masonry and rendering mortar and production technique thereof - Google Patents

Dry powder additive for masonry and rendering mortar and production technique thereof Download PDF

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Publication number
CN104261723A
CN104261723A CN201410433743.8A CN201410433743A CN104261723A CN 104261723 A CN104261723 A CN 104261723A CN 201410433743 A CN201410433743 A CN 201410433743A CN 104261723 A CN104261723 A CN 104261723A
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Prior art keywords
mortar
dry powder
powder additive
additive
stones
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CN201410433743.8A
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Chinese (zh)
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廖日南
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廖日南
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Priority to CN201410433743.8A priority Critical patent/CN104261723A/en
Publication of CN104261723A publication Critical patent/CN104261723A/en
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Abstract

The invention discloses a dry powder additive for masonry and rendering mortar, which comprises the following components in percentage by weight: 1-4% of hydroxypropyl methylcellulose, 0.4-1% of hydroxypropyl starch ether, 65-99.5% of light calcium carbonate and 0-34.5% of ground calcium carbonate. The product components are designed to change the consumption of the product in the mortar and regulate the viscosity and water-retaining efficiency of the mortar. The reasonable component matching is utilized to enhance the lime substituting efficiency of the dry powder additive; and compared with the mortar mixed with lime powder or emplaster, the dry powder additive can greatly lower the cost of the building mortar and improve the building quality.

Description

A kind ofly to build by laying bricks or stones, the dry powder additive of plaster mortar and production technique thereof
Technical field
The invention belongs to New Building Materials technical field, be specifically related to a kind ofly to build by laying bricks or stones, the dry powder additive of plaster mortar and production technique thereof.
Background technology
Traditional is building by laying bricks or stones, add lime powder or lime putty in plaster sand-cement slurry to make thickening binding agent to there is cost high, working-yard not environmentally, operation is many, to lay bricks the brick that will wet, plaster will wet the problems such as wall, in recent years the appearance of some lime substitute products is had, mortar treasured as softening agent class waits mortar additive, these " lime substitute products " are through market application for many years, verified: " fluidizer " inside the mortar additive of softening agent class, although the workability of mortar can be improved, but it does not have water retaining function, the moisture content of mortar is absorbed fast by brick wall, the cement of mortar can not get abundant aquation at initial setting time due to dehydration, fail to reach due intensity, more serious defect is: engineer applied proves the mortar that the mortar additive of softening agent class is puddled, and there is mortar and basic unit bonds loosely, delamination, dusting, fall the quality problems such as ash, hollowing, cracking.The effect of alternative lime can not be played well.And, cement will fully harden needs sufficient moisture content to carry out aquation, and be that lime or more existing lime substitute products all do not have water retaining function, the moisture of sand-cement slurry is easily absorbed by brick wall, causes cement fully aquation cannot thus not reach due intensity.Sprinkling is needed to carry out moisturizing in construction process, cumbersome.
Application number is in the Chinese patent of " CN200810167702.3 ", disclose name and be called " the preparation method of grout additive, grout additive and adopt it to prepare the method for mortar " patent of invention, a kind of grout additive involved by this invention, it comprises following part by weight component: ether of cellulose and mixture thereof: starch ethers: polyvinyl alcohol: powdery defoamer=1 ~ 8:1 ~ 4:0 ~ 3:0 ~ 2, other intensity weighting agents are not increased in this grout additive, the effect of lime in sand-cement slurry can not be substituted well, the shaping strength of sand-cement slurry and density are all had a certain impact, cause sand-cement slurry and the easy layering of basal plane, and the subsequent construction after scraping sand-cement slurry is criticized to metope there is certain hidden danger.
Summary of the invention
In order to solve above-mentioned problems of the prior art, the invention discloses a kind ofly to build by laying bricks or stones, the dry powder additive of plaster mortar, main purpose is to provide a kind of high efficiency lime substitute products, thus solve the cost and quality problems that use lime and emplaster, simultaneously, by designing the composition of product, product is made to possess higher viscosity and water retention property, ensure the lasting water conservation time required in hardening of cement process, improve sand-cement slurry shaping strength and bonding hardness, thus improve construction quality.By the reasonably combined efficiency improving the alternative lime of this mortar dry powder additive of composition, greatly reduce the usage quantity of lime in construction work, reduce building operation cost.
A kind ofly to build by laying bricks or stones, the dry powder additive of plaster mortar, batching comprises: Vltra tears, hydroxypropyl starch ether, light calcium carbonate and water-ground limestone, its weight proportion is: hydroxypropyl methylcellulose 1-4%, hydroxypropyl starch ether 0.4-1%, light calcium carbonate 65-99.5%, water-ground limestone 0-34.5%.
Further, described light calcium carbonate specification is 300-600 order.
Further, described water-ground limestone specification is 200-600 order.
As a kind of preferred version, also can add polymer dispersion powder, its weight proportion is 0.1-0.5%.
A kind ofly to build by laying bricks or stones, the production technique of the dry powder additive of plaster mortar comprise the following steps:
Step one, takes raw material by proportioning;
Step 2, the raw material powder using powder stirrer to draw proportioning respectively good enters into stirred pot, and stirrer stirs 15-20 minute, fully mixes;
Step 3; By the discharging of whirlwind discharger, this mortar dry powder additive can be obtained.
The present invention for main raw material, except the advantage remaining lime, adds Vltra tears as tackifier, water-holding agent with the light calcium carbonate (sierozem power) after traditional lime deep processing.The viscosity of product can be increased substantially on the one hand, reduce consumption, the water conservation time of mortar can be extended to more than 7 hours from original 3 hours on the other hand, improve the application property of mortar, enhance the anti-sag ability of mortar, simultaneously, can prevent screed from cracking, can reinforced cement mortar intensity.
Hydroxypropyl starch ether improves product viscosity stability, applies hydroxypropyl starch ether mainly as stablizer, improve the sag resistance of mortar, share can play the complementary effect strengthened with Vltra tears building by laying bricks or stones, in the dry powder additive of plaster mortar.
Light calcium carbonate is used to be because light calcium carbonate is the deep processed product of lime in the product, itself possess all functions of lime, mortar not sedimentation can be made, easy dispersion, improve hardness, reinforced mortar sticking power, improves the workability of mortar, improve mortar strength and compactness, prevent the segregation of slurries and reduce bleeding rate.
Use water-ground limestone as weighting agent, not only can reduce production cost, density and the intensity of mortar can also be increased, improve workability (as adjusting viscosity, rheological property, curability), improve dimensional stability, improve physicals (as thermotolerance, wear resistance, flame retardant resistance) etc.
Polymer dispersion powder, as a kind of preferred version, can improve the weathering resistance of mortar, mobility and plasticity-.The shrinking percentage that the cold and hot temperature difference reducing mortar causes.Extend the building life of mortar.
By to product Composition Design, the consumption of product in mortar can be changed, also can adjust viscosity and the water retaining efficiency of mortar.Therefore, use this dry powder additive substitute traditional lime powder or lime putty puddle build by laying bricks or stones, plaster mortar, effectively can improve viscosity and the sticking power of mortar; Because this dry powder additive has good water retaining function, enough moisture content can be kept to meet the aquation requirement of the cement in mortar at initial setting time, thus significantly improve mortar strength; Use this dry powder additive to puddle mortar contrast lime powder or mortar puddled by emplaster, this dry powder additive consumption is few, efficiency is high, significantly can reduce the cost of building mortar.Meet that market is efficient, the demand of high-quality, low cost.
Embodiment
The invention discloses a kind ofly to build by laying bricks or stones, the dry powder additive of plaster mortar and production technique thereof, main purpose is to provide a kind of dynamical lime substitute products, thus solves the not enough problem of high cost and the existence using lime or emplaster to bring.
Below in conjunction with concrete preferred implementation further description made for the present invention, can not assert that the present invention specifically implements to be confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Embodiment one:
Present embodiments provide a kind of weight proportion, comprise component as follows: Vltra tears 2%, hydroxypropyl starch ether 0.4%, light calcium carbonate 70%, water-ground limestone 27.6%.
Its production technique is:
Step one, by proportioning Vltra tears 2%, hydroxypropyl starch ether 0.4%, light calcium carbonate 70%, water-ground limestone 27.6%, takes raw material;
Step 2, the raw material powder using powder stirrer to draw proportioning respectively good enters into stirred pot, and stirrer stirs 15-20 minute, fully mixes;
Step 3, by the discharging of whirlwind discharger, can obtain this mortar dry powder additive.
Embodiment two:
Present embodiments provide a kind of weight proportion, comprise component as follows: Vltra tears 3%, treated starch ether 0.6%, light calcium carbonate 76.4%, water-ground limestone 20%.
Its production technique is:
Step one, by proportioning Vltra tears 3%, treated starch ether 0.6%, light calcium carbonate 76.4%, water-ground limestone 20%, takes raw material;
Step 2, the raw material powder using powder stirrer to draw proportioning respectively good enters into stirred pot, and stirrer stirs 15-20 minute, fully mixes;
Step 3, by the discharging of whirlwind discharger, can obtain this mortar dry powder additive.
Embodiment three:
This enforcement provides a kind of weight proportion, comprises component as follows: Vltra tears 4%, starch ethers 0.8%, light calcium carbonate 85%, water-ground limestone 10%, polymer dispersion powder 0.2%.
Its production technique is:
Step one, by proportioning Vltra tears 4%, starch ethers 0.8%, light calcium carbonate 85%, water-ground limestone 10%, polymer dispersion powder 0.2%, takes raw material;
Step 2, the raw material powder using powder stirrer to draw proportioning respectively good enters into stirred pot, and stirrer stirs 15-20 minute, fully mixes;
Step 3, by the discharging of whirlwind discharger, can obtain this mortar dry powder additive.
Various composition carries out combining the effect effectively can playing complementation and associating above, improve cohesive force and the water retaining function of this grout additive, be applied to build by laying bricks or stones, additive made by plaster mortar, sand-cement slurry can be made to increase considerably viscosity, make cement constituent aquation to greatest extent, improve the application property of mortar, improve intensity, the effect in sand-cement slurry of lime or emplaster can be replaced completely and additional other add powerful, decrease the usage quantity of primary lime, reduce building cost; Avoid quick-fried grain, the crack performance after the cement sand plaster metope using lime, for facing creates a good basal plane.
In use embodiment 2, when the grout additive of embodiment 3 component puddles mortar, its concrete construction procedure is:
Step one; By proportioning be: cement: fine sand: grout additive=1:4:0.04-0.05 carries out mix and blend;
Step 2; Above component dry powder is puddled evenly, and the about 0.5-0.55% clear water adding component quality is uniformly mixed;
Step 3; The denseness of mixing and stirring applicable construction requirement can use.

Claims (5)

1. one kind build by laying bricks or stones, the dry powder additive of plaster mortar, it is characterized in that, batching comprises: Vltra tears, starch ethers, light calcium carbonate and water-ground limestone, its weight proportion is: Vltra tears 1-4%, hydroxypropyl starch ether 0.4-1%, light calcium carbonate 65-99.5%, water-ground limestone 0-34.5%.
2. according to according to claim 1ly a kind ofly building by laying bricks or stones, the dry powder additive of plaster mortar, it is characterized in that, described light calcium carbonate specification is 300-600 order.
3. according to according to claim 1ly a kind ofly building by laying bricks or stones, the dry powder additive of plaster mortar, it is characterized in that, described water-ground limestone specification is 200-600 order.
4. according to claim 1 state a kind ofly to build by laying bricks or stones, the dry powder additive of plaster mortar, it is characterized in that, also can add polymer dispersion powder, its weight proportion is 0.1-0.5%.
5. a kind of according to claim 1-3 builds by laying bricks or stones, the production technique of the dry powder additive of plaster mortar, it is characterized in that, comprises the following steps:
Step one, takes raw material by proportioning;
Step 2, the raw material powder using powder stirrer to draw proportioning respectively good enters into stirred pot, and stirrer stirs 15-20 minute, fully mixes;
Step 3; By the discharging of whirlwind discharger, this mortar dry powder additive can be obtained.
CN201410433743.8A 2014-08-29 2014-08-29 Dry powder additive for masonry and rendering mortar and production technique thereof Pending CN104261723A (en)

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CN201410433743.8A CN104261723A (en) 2014-08-29 2014-08-29 Dry powder additive for masonry and rendering mortar and production technique thereof

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109734398A (en) * 2019-03-25 2019-05-10 广州市国文环保科技有限公司 A kind of environmental protection lime white building decoration materials and preparation method thereof
US10640430B2 (en) 2014-01-31 2020-05-05 Saudi Basic Industries Corporation Fertilizer capsule comprising one or more cores and method of making same
US10689306B2 (en) 2015-07-20 2020-06-23 Sabic Global Technologies B.V. Fertilizer composition and methods of making and using same
US10865159B2 (en) 2015-11-16 2020-12-15 Sabic Global Technologies B.V. Methods of manufacture for coated granular fertilizers
US11021409B2 (en) 2017-08-09 2021-06-01 Sabic Global Technologies B.V. Extruded fertilizer granules with urease and/or nitrification inhibitors
US11104618B2 (en) 2015-07-20 2021-08-31 Sabic Global Technologies B.V. Fertilizer composition and methods of making and using same
US11124463B2 (en) 2015-11-16 2021-09-21 Sabic Global Technologies B.V. Coated granular fertilizers, methods of manufacture thereof, and uses thereof

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JPH08290949A (en) * 1995-04-20 1996-11-05 Hideaki Takahashi Production of hardened calcium carbonate and raw material powder for production and production of raw material powder
CN1939866A (en) * 2005-09-27 2007-04-04 同济大学 Mortar partner and its use
CN101638307A (en) * 2009-09-08 2010-02-03 邢献军 Novel plastering mortar
CN102452818A (en) * 2010-11-01 2012-05-16 嵊州市新宇建材开发有限公司 Anti-crack mortar and preparation method thereof
CN103043941A (en) * 2012-12-31 2013-04-17 中国矿业大学 Thickening powder for preparing dry-mixed masonry mortar

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JPH08290949A (en) * 1995-04-20 1996-11-05 Hideaki Takahashi Production of hardened calcium carbonate and raw material powder for production and production of raw material powder
CN1939866A (en) * 2005-09-27 2007-04-04 同济大学 Mortar partner and its use
CN101638307A (en) * 2009-09-08 2010-02-03 邢献军 Novel plastering mortar
CN102452818A (en) * 2010-11-01 2012-05-16 嵊州市新宇建材开发有限公司 Anti-crack mortar and preparation method thereof
CN103043941A (en) * 2012-12-31 2013-04-17 中国矿业大学 Thickening powder for preparing dry-mixed masonry mortar

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10640430B2 (en) 2014-01-31 2020-05-05 Saudi Basic Industries Corporation Fertilizer capsule comprising one or more cores and method of making same
US10689306B2 (en) 2015-07-20 2020-06-23 Sabic Global Technologies B.V. Fertilizer composition and methods of making and using same
US11104618B2 (en) 2015-07-20 2021-08-31 Sabic Global Technologies B.V. Fertilizer composition and methods of making and using same
US11124463B2 (en) 2015-11-16 2021-09-21 Sabic Global Technologies B.V. Coated granular fertilizers, methods of manufacture thereof, and uses thereof
US10865159B2 (en) 2015-11-16 2020-12-15 Sabic Global Technologies B.V. Methods of manufacture for coated granular fertilizers
US11021409B2 (en) 2017-08-09 2021-06-01 Sabic Global Technologies B.V. Extruded fertilizer granules with urease and/or nitrification inhibitors
CN109734398A (en) * 2019-03-25 2019-05-10 广州市国文环保科技有限公司 A kind of environmental protection lime white building decoration materials and preparation method thereof

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Application publication date: 20150107