CN103043982B - Powder special for mechanized construction plastering mortar - Google Patents
Powder special for mechanized construction plastering mortar Download PDFInfo
- Publication number
- CN103043982B CN103043982B CN201210557711.XA CN201210557711A CN103043982B CN 103043982 B CN103043982 B CN 103043982B CN 201210557711 A CN201210557711 A CN 201210557711A CN 103043982 B CN103043982 B CN 103043982B
- Authority
- CN
- China
- Prior art keywords
- powder
- fineness
- furnace slag
- motar
- mortar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a powder special for mechanized construction plastering mortar, which is formed by mixing portland cement clinker, plaster, granulated blast-furnace slag, coal ash, limestone powder and a chemical addition agent, and a mass ratio of the portland cement clinker to the plaster to the granulated blast-furnace slag to the coal ash to the limestone powder to the chemical addition agent is (100-300): (50-100): (50-200): (100-400): (100-400): (2-5). A scientific proportioning relation is utilized by the invention, so that the prepared building plastering mortar have an excellent water-retaining property, a thickening property, a mechanical transport property and sag resistance on the wall, and meanwhile, the binding power of the hardening mortar and the matrix is improved, the size shrinkage rate is reduced, and the trends of powder falling, hollowing and cracking are reduced.
Description
Technical field
The invention belongs to building material technical field, particularly relate to the special powder of a kind of mechanical execution motar.
Background technology
The special powder of mechanical execution motar is the powder material that the granularity being exclusively used in preparation mechanical execution motar is less than 0.075mm, object is applicable to mechanized construction with the motar of the present invention's preparation, powder material adds water the slurry lubricate constructability, floating before solidifying formed, and plays cohesive action after solidifying.Current working-yard mixing building plastering mortar powder used is general purpose portland cement, primary intensity grade is 28d Kang pressure Du≤32.5MPa, this intensity is too high for motar intensity (about 5MPa), so when cement mixing content reaches workability, intensity is just too high, and shrinks large and ftracture; Field worker is for the ease of construction and reduce costs, reduce cement consumption at the scene during mixing mortar and mix " mortar king " (air entrapment agent), in mortar, the quality of air entrapment agent, volume and agitation condition all affect the size of air bubble in mortar, homogeneity and bleed rate, the out of hand and efflorescence of result mortar strength.The powder of current dry-mixed mortar is the general purpose portland cement of 32.5 strength grades and flyash and a small amount of admixture mainly, and dry-mixed mortar at the scene blunge is even, and after manually spreading wall, the quality problems such as its cracking, hollowing, efflorescence are improved greatly; But, the main drawback of dry-mixed mortar is that cost is too high, and be not suitable for mechanized construction, the i.e. easy plugging of mechanical execution, spray easily drop on the wall or fall material completely, its reason is powder (cement, flyash etc.) the just physical mixed of dry-mixed mortar, does not consider the grain composition of powder.
Summary of the invention
The object of this invention is to provide the special powder of mechanical execution motar of a kind of constructability, the rear good endurance (namely reducing the trend of dry linting, hollowing and cracking) of sclerosis.
For achieving the above object, the technical solution used in the present invention is:
The special powder of a kind of mechanical execution motar; mixed by Portland clinker, gypsum, granulated blast-furnace slag, flyash, limestone powder, chemical additive, its quality proportioning is: Portland clinker: gypsum: granulated blast-furnace slag: flyash: limestone powder: chemical additive=100 ~ 300: 50 ~ 100: 50 ~ 200: 100 ~ 400: 100 ~ 400: 2 ~ 5.
The fineness of described Portland clinker and gypsum is 300 ~ 400m
2/ kg.
The fineness of described granulated blast-furnace slag is 400 ~ 600m
2/ kg; The fineness of described flyash is 250 ~ 350m
2/ kg; The fineness of described limestone powder is 600 ~ 1200m
2/ kg.
Described chemical additive comprise in ether of cellulose, dispersion agent, thickening material, air entrapment agent one or more.
In the present invention; the special powder of mechanical execution motar; mixed by Portland clinker, gypsum, granulated blast-furnace slag, flyash, limestone powder, chemical additive; utilize grain composition and chemically active matching relationship; give full play to the physicochemical property of described each component, particularly play the physics filling effect of super-fine limestone powder, dissemination and thickening power.Compared with general-purpose cement, the present invention, due to the effect of super-fine limestone powder, decreases the voidage of powder, increases the physics accumulation of powder and gains in strength; Super-fine limestone powder is thinner than cement clinker particles, and has very strong dissemination to it and gain in strength, thus reduces the consumption of cement clinker and chemical additive, cost-saving; Because Wingdale grindability is good, the present invention utilizes super-fine limestone powder can energy-conserving profit waste, namely utilizes to descend material in concrete artificial aggregate, has comparatively overall situation benefit.The proportion relation of science of the present invention, the building plastering mortar prepared, can make fresh mortar have good water-retentivity, thickening property, mechanical transport, sag resistance on the wall, improve the cohesive force of hardened mortar and matrix, reduce volumetric shrinkage, reduce the trend of dry linting, hollowing and cracking.
Embodiment
Embodiment 1:
The special powder of a kind of mechanical execution motar, mixed by Portland clinker, gypsum, granulated blast-furnace slag, flyash, limestone powder, chemical additive, described various component quality proportioning is: Portland clinker: gypsum: granulated blast-furnace slag: flyash: limestone powder: chemical additive=100: 50: 50: 400: 400: 2; The fineness of described Portland clinker and gypsum is 300m
2/ kg; The fineness of described granulated blast-furnace slag is 400m
2/ kg; The fineness of described flyash is 250m
2/ kg; The fineness of described limestone powder is 600m
2/ kg.Described each component is milled down to the fineness of regulation, and then by after each component in proportion accurate-metering, mixing and stirring metering packing is the special powder of mechanical execution motar.
Performance index of the present invention are checked with the Chinese iso standard sand (meeting 5.1.3 in ISO679 to require) of inspection strength of cement mortar; The special powder of mechanical execution motar to having above-mentioned formula: Chinese iso standard sand: water=1:3:0.8 (mass ratio), mortar is stirred into according to " Test method for strength of hydraulic cement mortar (ISO) " (GB/T17671-1999) method, again according to corresponding standard testing properties, result is see table 1.
Table 1
| Test item | Unit | Performance index | Testing standard |
| Wet density | kg/m3 | ≤1800 | JG/T230—2007 |
| Water-retentivity | % | ≥90 | JG/T230—2007 |
| Denseness | mm | 80-90 | JG/T230—2007 |
| Delamination degree | mm | ≤15 | JGJ70—2009 |
| Bleeding rate | % | ≤5 | GB8076—2008 |
| Time of coagulation | h | ≥5 | JG/T230—2007 |
| 14d tensile bond strength | MPa | ≥0.2 | JG/T230—2007 |
| 28d ultimate compression strength | MPa | ≥5 | JG/T230—2007 |
Embodiment 2:
The special powder of a kind of mechanical execution motar, mixed by Portland clinker, gypsum, granulated blast-furnace slag, flyash, limestone powder, chemical additive, described various component quality proportioning is: Portland clinker: gypsum: granulated blast-furnace slag: flyash: limestone powder: chemical additive=200: 75: 125: 300: 300: 3.5; The fineness of described Portland clinker and gypsum is 350m
2/ kg; The fineness of described granulated blast-furnace slag is 500m
2/ kg; The fineness of described flyash is 300m
2/ kg; The fineness of described limestone powder is 800m
2/ kg.Described each component is milled down to the fineness of regulation, and then by after each component in proportion accurate-metering, mixing and stirring metering packing is the special powder of mechanical execution motar.
Performance index of the present invention are checked with the Chinese iso standard sand (meeting 5.1.3 in ISO679 to require) of inspection strength of cement mortar; The special powder of mechanical execution motar to having above-mentioned formula: Chinese iso standard sand: water=1:3:0.8 (mass ratio), mortar is stirred into according to " Test method for strength of hydraulic cement mortar (ISO) " (GB/T17671-1999) method, again according to corresponding standard testing properties, result is see table 2.
Table 2
| Test item | Unit | Performance index | Testing standard |
| Wet density | kg/m3 | ≤1700 | JG/T230—2007 |
| Water-retentivity | % | ≥93 | JG/T230—2007 |
| Denseness | mm | 80-90 | JG/T230—2007 |
| Delamination degree | mm | ≤10 | JGJ70—2009 |
| Bleeding rate | % | ≤3 | GB8076—2008 |
| Time of coagulation | h | ≥5 | JG/T230—2007 |
| 14d tensile bond strength | MPa | ≥0.25 | JG/T230—2007 |
| 28d ultimate compression strength | MPa | ≥7.5 | JG/T230—2007 |
Embodiment 3:
The special powder of a kind of mechanical execution motar, mixed by Portland clinker, gypsum, granulated blast-furnace slag, flyash, limestone powder, chemical additive, described various component quality proportioning is: Portland clinker: gypsum: granulated blast-furnace slag: flyash: limestone powder: chemical additive=300: 100: 200: 100: 300: 5; The fineness of described Portland clinker and gypsum is 400m
2/ kg; The fineness of described granulated blast-furnace slag is 600m
2/ kg; The fineness of described flyash is 350m
2/ kg; The fineness of described limestone powder is 1200m
2/ kg.Described each component is milled down to the fineness of regulation, and then by after each component in proportion accurate-metering, mixing and stirring metering packing is the special powder of mechanical execution motar.
Performance index of the present invention are checked with the Chinese iso standard sand (meeting 5.1.3 in ISO679 to require) of inspection strength of cement mortar; The special powder of mechanical execution motar to having above-mentioned formula: Chinese iso standard sand: water=1:3:0.8 (mass ratio), mortar is stirred into according to " Test method for strength of hydraulic cement mortar (ISO) " (GB/T17671-1999) method, again according to corresponding standard testing properties, result is see table 3.
Table 3
| Test item | Unit | Performance index | Testing standard |
| Wet density | kg/m3 | ≤1600 | JG/T230—2007 |
| Water-retentivity | % | ≥95 | JG/T230—2007 |
| Denseness | mm | 80-90 | JG/T230—2007 |
| Delamination degree | mm | ≤5 | JGJ70—2009 |
| Bleeding rate | % | ≤1 | GB8076—2008 |
| Time of coagulation | h | ≥5 | JG/T230—2007 |
| 14d tensile bond strength | MPa | ≥0.3 | JG/T230—2007 |
| 28d ultimate compression strength | MPa | ≥10 | JG/T230—2007 |
Embodiment 4:
The special powder of a kind of mechanical execution motar, mixed by Portland clinker, gypsum, granulated blast-furnace slag, flyash, limestone powder, chemical additive, described various component quality proportioning is: Portland clinker: gypsum: granulated blast-furnace slag: flyash: limestone powder: chemical additive=300: 100: 200: 300: 100: 5; The fineness of described Portland clinker and gypsum is 400m
2/ kg; The fineness of described granulated blast-furnace slag is 600m
2/ kg; The fineness of described flyash is 350m
2/ kg; The fineness of described limestone powder is 1200m
2/ kg.Described each component is milled down to the fineness of regulation, and then by after each component in proportion accurate-metering, mixing and stirring metering packing is the special powder of mechanical execution motar.
Performance index of the present invention are checked with the Chinese iso standard sand (meeting 5.1.3 in ISO679 to require) of inspection strength of cement mortar; The special powder of mechanical execution motar to having above-mentioned formula: Chinese iso standard sand: water=1:3:0.8 (mass ratio), mortar is stirred into according to " Test method for strength of hydraulic cement mortar (ISO) " (GB/T17671-1999) method, again according to corresponding standard testing properties, result is see table 4.
Table 4
| Test item | Unit | Performance index | Testing standard |
| Wet density | kg/m3 | ≤1600 | JG/T230—2007 |
| Water-retentivity | % | ≥95 | JG/T230—2007 |
| Denseness | mm | 80-90 | JG/T230—2007 |
| Delamination degree | mm | ≤5 | JGJ70—2009 |
| Bleeding rate | % | ≤1 | GB8076—2008 |
| Time of coagulation | h | ≥5 | JG/T230—2007 |
| 14d tensile bond strength | MPa | ≥0.3 | JG/T230—2007 |
| 28d ultimate compression strength | MPa | ≥9 | JG/T230—2007 |
In the present invention, chemical additive comprise in ether of cellulose, dispersion agent, thickening material, air entrapment agent one or more.
Claims (4)
1. the special powder of mechanical execution motar; it is characterized in that; mixed by Portland clinker, gypsum, granulated blast-furnace slag, flyash, limestone powder, chemical additive, its quality proportioning is: Portland clinker: gypsum: granulated blast-furnace slag: flyash: limestone powder: chemical additive=100 ~ 300: 50 ~ 100: 50 ~ 200: 100 ~ 400: 100 ~ 400: 2 ~ 5.
2. the special powder of mechanical execution motar as claimed in claim 1, it is characterized in that, the fineness of described Portland clinker and gypsum is 300 ~ 400m
2/ kg.
3. the special powder of mechanical execution motar as claimed in claim 1, it is characterized in that, the fineness of described granulated blast-furnace slag is 400 ~ 600m
2/ kg; The fineness of described flyash is 250 ~ 350m
2/ kg; The fineness of described limestone powder is 600 ~ 1200m
2/ kg.
4. the special powder of mechanical execution motar as claimed in claim 1, is characterized in that, described chemical additive comprise in ether of cellulose, dispersion agent, thickening material, air entrapment agent one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210557711.XA CN103043982B (en) | 2012-12-20 | 2012-12-20 | Powder special for mechanized construction plastering mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210557711.XA CN103043982B (en) | 2012-12-20 | 2012-12-20 | Powder special for mechanized construction plastering mortar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103043982A CN103043982A (en) | 2013-04-17 |
| CN103043982B true CN103043982B (en) | 2015-02-04 |
Family
ID=48056870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210557711.XA Active CN103043982B (en) | 2012-12-20 | 2012-12-20 | Powder special for mechanized construction plastering mortar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103043982B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107083097A (en) * | 2017-06-06 | 2017-08-22 | 合肥月煌新型装饰材料有限公司 | A kind of indoor putty capable of purifying air and preparation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913804A (en) * | 2010-07-23 | 2010-12-15 | 邵阳市宝鑫高科新材开发有限公司 | Dry-mixed mortar material and preparation method thereof |
| CN102659364A (en) * | 2012-05-10 | 2012-09-12 | 梅县淦源建筑材料有限公司 | Spraying mortar and manufacture method thereof |
-
2012
- 2012-12-20 CN CN201210557711.XA patent/CN103043982B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913804A (en) * | 2010-07-23 | 2010-12-15 | 邵阳市宝鑫高科新材开发有限公司 | Dry-mixed mortar material and preparation method thereof |
| CN102659364A (en) * | 2012-05-10 | 2012-09-12 | 梅县淦源建筑材料有限公司 | Spraying mortar and manufacture method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103043982A (en) | 2013-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104961423A (en) | Machine-spraying-type plastering gypsum mortar and preparation technology thereof | |
| CN105271850B (en) | The preparation method of cement-based material composite blend and the cement-based material containing the composite blend | |
| CN104556866A (en) | Tailing powder wet-mixed plastering mortar | |
| CN101337784A (en) | Building mortar and method for preparing same | |
| CN101386511A (en) | Gypsum base hydraulicity building mortar and preparation method thereof | |
| CN108545975A (en) | A kind of modified SILICA FUME of gunite concrete | |
| CN102491656A (en) | Pulverized steel slag gelatinization material | |
| CN104045280B (en) | A kind of C120 super high strength concrete that is easy to super high-rise pumping | |
| CN103043980B (en) | Mechanized construction plastering mortar and preparation method thereof | |
| CN104003642B (en) | A kind of concrete admixture and application thereof | |
| CN105036667B (en) | A kind of preparation method of antifreeze dry-mixed mortar | |
| CN105819787B (en) | High-strength concrete prepared from iron tailings | |
| CN103113077A (en) | Desulfurization gypsum concrete | |
| CN108585592A (en) | A kind of Concrete synergist and preparation method thereof | |
| CN103086638A (en) | Mortar additive and production process thereof | |
| CN110698098A (en) | Corrosion-resistant iron tailing aggregate, corrosion-resistant concrete and preparation method thereof | |
| CN104496327A (en) | Wet-mixed masonry mortar prepared by adopting aggregate chips | |
| CN104529340B (en) | A kind of dry-mixed mortar complex slag plasticizer and preparation method thereof | |
| CN101234864A (en) | Building plastering mortar additive | |
| KR101406997B1 (en) | Lightweight foamed concrete wall of lightweight foamed concrete using waste expanded polystyrene aggregate composition and take advantage of this manufacturing method | |
| CN103043982B (en) | Powder special for mechanized construction plastering mortar | |
| CN102745970A (en) | Composition for preparing dry-mixed mortar | |
| CN105036680A (en) | Method for preparing plastering gypsum through waste titanium gypsum | |
| CN102199028B (en) | Rapid hardening early strength grouting material prepared with flue gas desulfurized gypsum and preparation method thereof | |
| CN101774781A (en) | Additive for building garbage as cement admixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190125 Address after: Room 405, Building Research Center, Zhengzhou University, 57 Dongsanjie, Jinshui District, Zhengzhou City, Henan Province Patentee after: ZHENGZHOU TECHNOLOGY UNIVERSITY HIGH-TECHNOLOGY TECHNOLOGY CO., LTD. Address before: 450002 No. 50 Cultural Road, Jinshui District, Zhengzhou City, Henan Province Patentee before: Zhengzhou Gongda Construction Materials Co., Ltd. |
|
| TR01 | Transfer of patent right |