CN103242020B - A kind of gypsum-cement machine spray powder mortar and constructional method thereof - Google Patents
A kind of gypsum-cement machine spray powder mortar and constructional method thereof Download PDFInfo
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- CN103242020B CN103242020B CN201310208806.5A CN201310208806A CN103242020B CN 103242020 B CN103242020 B CN 103242020B CN 201310208806 A CN201310208806 A CN 201310208806A CN 103242020 B CN103242020 B CN 103242020B
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- gypsum
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Abstract
A kind of gypsum <b>-</b> cement machine spray powder mortar and constructional method thereof, this gypsum <b>-</b> cement machine spray powder mortar is by gypsum <b>-</b> cement, ether of cellulose, hardening accelerator, re-dispersible glue powder mixture is made, the weight proportion of each constituent materials is: gypsum <b>-</b> cement 20% ~ 75%, ether of cellulose 0.01% ~ 0.4%, hardening accelerator 0 ~ 0.6%, re-dispersible glue powder 0 ~ 4%, fine sand 25% ~ 80%, lignin fibre 0 ~ 0.6%.The present invention also comprises the constructional method of described gypsum <b>-</b> cement machine spray powder mortar.Gypsum <b>-</b> cement machine spray powder mortar of the present invention, can be used as interior wall telephone sandblasting slurry and outer wall telephone sandblasting slurry, through test, construct after 1 year, on inspection, without hollowing, come off, flawless and without be full of cracks, and workability is superior.
Description
Technical field
The present invention relates to a kind of dry-mix and constructional method thereof, specifically, relate to a kind of inner-outer wall and wipe one's face and use gypsum
-cement machine spray powder mortar and constructional method thereof.
Background technology
Traditional cement plaster mortar, because intensity is high, water resistance is good, is used widely.But also there is following defect: 1, cure shrinkage value is large, in sand-cement slurry after construction 40 days, cure shrinkage increases very fast, and shrinkage was directly proportional to the time, and in 40 days ~ 1 year, cure shrinkage is occurring always; 2, air shrinkage value is large, and the air shrinkage value of sand-cement slurry is generally 0.8 ~ 1.0mm/m, is 4 ~ 5 times of gypsum mortar; 3, expand with heat and contract with cold value and gypsum mortar close of sand-cement slurry, about 10 × 10
-6.
Due to the existence of shrinkage value, between plastering mortar and metope base material top layer, produce shear-stress.Shrinkage value is larger, and shearing stress is larger.The major cause that this shearing stress is current plastering mortar generation hollowing, ftracture, come off, chap.
Existing gypsum plaster mortar (brushing gypsum), the low or microdilatancy of cure shrinkage value ought to be good plastering mortar, but due to gypsum intensity low, not water-fast, so being of limited application of brushing gypsum
In addition, existing all kinds of plastering mortar operating efficiency is all low, and labour intensity is large, and construction cost is high.
Summary of the invention
The technical problem to be solved in the present invention is, provide a kind of cure shrinkage value little or microdilatancy, operating efficiency is high, the gypsum that labour intensity is low
-cement machine spray powder mortar and constructional method thereof.
The technical scheme that the present invention solves the employing of its technical problem is:
The gypsum of the present invention
-cement machine spray powder mortar, by gypsum
-cement, ether of cellulose, hardening accelerator, re-dispersible glue powder mixture are made, and the weight proportion of each constituent materials is: gypsum
-cement 20% ~ 75%(preferably 25% ~ 50%), ether of cellulose 0.01% ~ 0.4%(preferably 0.02% ~ 0.3%), hardening accelerator 0 ~ 0.6%(preferably 0.2% ~ 0.6%), re-dispersible glue powder 0 ~ 4%(preferably 1 ~ 3%), fine sand 25% ~ 80%, lignin fibre 0 ~ 0.6%.
Described gypsum
-cement is gelatinization material gypsum disclosed in No. 200810031155.6, Chinese patent
-cement.This gypsum
-cement is the gelling material having the hydraulicity and air-setting performance concurrently.
Described fine sand is river sand or the artificial sand of particle diameter 0.075mm ~ 6mm.
One in the preferred Sodium sulfate anhydrous.min(99) of described hardening accelerator, alum, or the mixture of Sodium sulfate anhydrous.min(99) and alum.
Described ether of cellulose is that a kind of addition is low, but significantly can improve mortar performance and affect the main additive of mortar workability.
Described re-dispersible glue powder is that emulsion polymerization is spray-dried, and the powdery thermoplastic resin of subsequent disposal, increases force of cohesion, cohesion and snappiness in dry-mix.
Described lignin fibre is commercially available lignin fibre.
Production method: by above-mentioned each raw material by preset blending ratio metering, then all raw materials are mixed, packaging.
The gypsum of the present invention
-cement machine spray powder mortar constructional method one: cleaned by wall surface, with pit and the hole of gypsum-sand-cement slurry infilled wall wall surface, spreads the fiberglass mesh of 30cm width, does ash cake, after ash cake solidification, by gypsum at concrete and building block junction symmetry
-cement powder mortar pours stirrer into and the stirring that adds water, and is evenly sprayed on wall by mortar, strikes off with the large floating rule of straight flange with machine spray mortar equipment, after mortar surface layer is slightly dry, floating or rub with the hands flat with wooden nog plate.
The gypsum of the present invention
-cement machine spray powder mortar constructional method two: wall surface is cleaned, uses gypsum
-the pit of sand-cement slurry infilled wall wall surface and hole, floating screed, spreads the fiberglass mesh of 30cm, by gypsum at concrete and building block junction symmetry
-cement powder mortar pours stirrer into and the stirring that adds water, and is evenly sprayed on the wall of floating screed by mortar, then strikes off with large floating rule with machine spray mortar equipment.
Gypsum of the present invention
-cement machine spray powder mortar, can be used as interior wall telephone sandblasting slurry and outer wall telephone sandblasting slurry, through testing, constructing after 1 year, on inspection, without hollowing, come off, flawless and without be full of cracks, and workability is superior.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
The raw gypsum that each embodiment below introduced uses
-cement produces (this produce market has sale) by Changsha GuiYi Building Material Science Co., Ltd according to technical scheme disclosed in No. 200810031155.6, Chinese patent.
The raw material river fineness of sand that each embodiment of the following stated uses is 0.075 ~ 6mm, and the ether of cellulose trade mark is MKX15000, and the re-dispersible glue powder trade mark is RE5010N, and the hardening accelerator that embodiment 3,4 uses is Sodium sulfate anhydrous.min(99), and the hardening accelerator that embodiment 5 uses is alum.
The each component raw material weight of embodiment 1-5 sees the following form 1.
Each ingredients weight parts proportioning of table 1 embodiment 1-5
By the weight proportion that table 1 is recorded, take each component starting material, mix, add water stirring, measures its time of coagulation and stability by GB/T1346-2001, measures the green compression strength of its intensity and soaked 72 hours and calculate coefficient of softening by GB/T17671-1999.
1 is prepared by described weight proportion
#, 2
#, 3
#, 4
#, 5
#machine spray each 2 tons of mortar product, wherein constructs by the described constructional method one of " summary of the invention " part above for 1 ton, constructs for 1 ton by the described constructional method two of " summary of the invention " part above.Performance test results is in table 2.
Table 2 embodiment 1-5 product performance detected result
Embodiment of the present invention 1-5 gypsum
-cement machine spray powder mortar product, is used as interior wall telephone sandblasting slurry and outer wall telephone sandblasting is starched, and constructs after 1 year, on inspection, without hollowing, come off, flawless and without be full of cracks; Except embodiment 1 product, the workability of embodiment 2-5 product is all superior.
Claims (3)
1. a gypsum
-cement machine spray powder mortar, is characterized in that, by gypsum
-cement, ether of cellulose, hardening accelerator, re-dispersible glue powder mixture are made, and the weight proportion of each constituent materials is: gypsum
-cement 25% ~ 50%, ether of cellulose are 0.02% ~ 0.3%, hardening accelerator is 0.2% ~ 0.6%, re-dispersible glue powder weight proportion is 1 ~ 3%, fine sand 25% ~ 80%, lignin fibre 0 ~ 0.6%; Each weight percentages of components sum is 100%;
Described hardening accelerator is Sodium sulfate anhydrous.min(99), or the mixture of Sodium sulfate anhydrous.min(99) and alum;
Described fine sand is river sand or the artificial sand of particle diameter 0.075mm ~ 6mm.
2. a gypsum as claimed in claim 1
-the constructional method of cement machine spray powder mortar, is characterized in that, cleaned by wall surface, with pit and the hole of gypsum-sand-cement slurry infilled wall wall surface, spread the fiberglass mesh of 30cm width at concrete and building block junction symmetry, do ash cake, after ash cake solidification, by gypsum
-cement powder mortar pours stirrer into and the stirring that adds water, and is evenly sprayed on wall by mortar, strikes off with the large floating rule of straight flange with machine spray mortar equipment, after mortar surface layer is slightly dry, floating or rub with the hands flat with wooden nog plate.
3. a gypsum as claimed in claim 1
-the constructional method of cement machine spray powder mortar, is characterized in that, cleaned by wall surface, use gypsum
-the pit of sand-cement slurry infilled wall wall surface and hole, floating screed, spreads the fiberglass mesh of 30cm, by gypsum at concrete and building block junction symmetry
-cement powder mortar pours stirrer into and the stirring that adds water, and is evenly sprayed on the wall of floating screed by mortar, then strikes off with large floating rule with machine spray mortar equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310208806.5A CN103242020B (en) | 2013-05-30 | 2013-05-30 | A kind of gypsum-cement machine spray powder mortar and constructional method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310208806.5A CN103242020B (en) | 2013-05-30 | 2013-05-30 | A kind of gypsum-cement machine spray powder mortar and constructional method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103242020A CN103242020A (en) | 2013-08-14 |
| CN103242020B true CN103242020B (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310208806.5A Expired - Fee Related CN103242020B (en) | 2013-05-30 | 2013-05-30 | A kind of gypsum-cement machine spray powder mortar and constructional method thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106082747A (en) * | 2016-06-13 | 2016-11-09 | 哈尔滨幻石科技发展有限公司 | A kind of cement additire |
| CN113548859A (en) * | 2021-08-19 | 2021-10-26 | 重庆裕时科技有限公司 | Sand-gathering sound-absorbing mortar and preparation process and construction method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1570325A (en) * | 2004-04-29 | 2005-01-26 | 熊永强 | Construction process for synthetic resin curtain wall series paste on wall surface |
| CN101265068A (en) * | 2008-04-28 | 2008-09-17 | 长沙归一建材科技有限公司 | Gelatinization material gypsum-cement and producing method thereof |
| CN101269936A (en) * | 2008-03-21 | 2008-09-24 | 长沙归一建材科技有限公司 | Interface mortar |
| CN101857410A (en) * | 2010-06-01 | 2010-10-13 | 武汉威尔博科技发展有限公司 | Single-component inorganic heat-insulating mortar and preparation method thereof |
-
2013
- 2013-05-30 CN CN201310208806.5A patent/CN103242020B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1570325A (en) * | 2004-04-29 | 2005-01-26 | 熊永强 | Construction process for synthetic resin curtain wall series paste on wall surface |
| CN101269936A (en) * | 2008-03-21 | 2008-09-24 | 长沙归一建材科技有限公司 | Interface mortar |
| CN101265068A (en) * | 2008-04-28 | 2008-09-17 | 长沙归一建材科技有限公司 | Gelatinization material gypsum-cement and producing method thereof |
| CN101857410A (en) * | 2010-06-01 | 2010-10-13 | 武汉威尔博科技发展有限公司 | Single-component inorganic heat-insulating mortar and preparation method thereof |
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| CN103242020A (en) | 2013-08-14 |
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Granted publication date: 20151223 Termination date: 20190530 |