CN101746987B - Dry powder mortar aid and application thereof in mortar - Google Patents
Dry powder mortar aid and application thereof in mortar Download PDFInfo
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- CN101746987B CN101746987B CN 200810241465 CN200810241465A CN101746987B CN 101746987 B CN101746987 B CN 101746987B CN 200810241465 CN200810241465 CN 200810241465 CN 200810241465 A CN200810241465 A CN 200810241465A CN 101746987 B CN101746987 B CN 101746987B
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- mortar
- dry
- dry powder
- auxiliary agent
- polyacrylonitrile
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Abstract
The invention discloses a dry powder mortar aid, which is prepared from fatty alcohol, polycarboxylate, polyacrylonitrile, acrylic block copolymer and nano silicon oxide powder. Simultaneously, the invention also provides application of the dry powder mortar aid in mortar, which comprises the following steps: mixing and stirring complete dry powder mortar aid, cement and sand uniformly, adding water into the mixture in a ratio of the water to ash of 1: 3-4, and stirring the mixture uniformly to form the material for construction. The dry powder mortar aid improves the defect of inherent hardness and brittleness of the mortar, improves the cracking resistance and leakage resistance of the mortar, reduces hollowness, increases adhesive force, simultaneously improves the workability, water-retaining property and sagging resistance of the mortar, has the advantages of less adding amount and high cost performance, and is particularly suitable for special dry powder mortar such as adhesive mortar and protective mortar in an outer heat insulation system of a thin-plastered outer wall of an expanded polyphenyl board, polyphenyl granular heat insulation mortar, inorganic heat insulation mortar, cement self-levelling mortar and the like.
Description
Technical field
The present invention relates to a kind of auxiliary agent, relate in particular to a kind of dry-mix auxiliary agent.
The invention still further relates to this application of dry-mix auxiliary agent in mortar.
Background technology
Formed Steel Concrete epoch of modern building by cement, sand, reinforcing bar, concrete steel building than wooden building thing have durable, firm, can high-rise construction, Wind-Pressure Resistance, rain resistance, anti-advantage such as damage by worms.People are for further beautifying constructure outward appearance, and give wall plastering, sticking flag ceramic tile etc.; In order to reduce the energy consumption of buildings, various insulation measures have been invented, as expansion polyphenyl plate thinly plastered external insulation system of outer wall, polyphenyl particle heat-insulating mortar, inorganic heat insulation mortar etc.; For on ground, roofing provides smooth plane, invented cement self-leveling mortar etc.
Cement is the gelling material of preparation mortar and concrete and various cement products, also be most important powder building materials in the civil construction material, cement has its good application property as gelling material, the cement concrete of sclerosis has very high ultimate compression strength, but also innately there is serious defective in cement as base material:
(1) tensile strength is low, well below its ultimate compression strength;
(2) impact resistance is poor, is typical hard brittle material, i.e. the cast iron material;
(3) resistance to cleavage is poor, has a large amount of cup shakes and Temperature Cracks in the member, the passing that these crackles will be in time and constantly changing and development, and trickle crackle can develop into large fracture eventually.
Thereby the mortar that causes the preparation of present working-yard, the quality instability, intensity does not reach requirement, even with low quality, a series of problems such as cause cracking, seepage, hollowing, come off.Therefore be main mortar and concrete performance in order to improve by cement, sand, people are badly in need of a kind of dry-mix auxiliary agent that can be applicable in mortar and the concrete.
Summary of the invention
The present invention provides a kind of dry-mix auxiliary agent and the application in mortar thereof just in order to overcome above technical deficiency.
In order to overcome above technological deficiency, the present invention adopts following technical scheme:
A kind of dry-mix auxiliary agent, made and parts by weight are by following component:
Fatty Alcohol(C12-C14 and C12-C18) 20～40;
Polycarboxylate 30～70;
Polyacrylonitrile fibre 10～30;
Acrylic block copolymer 1～10;
Nano silica powder 0.5～3.
Described Fatty Alcohol(C12-C14 and C12-C18) is unitary fatty alcohol, and described unitary fatty alcohol is the unitary fatty alcohol of C8-C16.
Described polycarboxylate is that molecular weight is the polycarboxylate of 5000-50000, and this molecular weight is generally number-average molecular weight.
Described polyacrylonitrile fibre is the polyacrylonitrile profile fibre of length 2-6mm, and described polyacrylonitrile profile fibre is a kind of or its combination of polyacrylonitrile cashew nut shape fiber, polyacrylonitrile rice shape fiber.
Described acrylic block copolymer is preferably the segmented copolymer of vinylformic acid and maleic anhydride.
The application of a kind of aforesaid dry-mix auxiliary agent in mortar comprises the steps:
A, take by weighing each component by above-mentioned parts by weight, mix and stir, make the dry-mix auxiliary agent;
B, be 100% with total weight percent, weight percent is respectively dry-mix auxiliary agent, the cement of 30-36%, the 60-68% sand mixing and stirring of 2-4%;
C, in the mixture of step B gained, be 1 with water cement ratio: 3-4 adds water, and stirs, and makes working mortar.
Wherein, the cement intensity grade is preferably 42.5.
Dry-mix auxiliary agent of the present invention and the application in mortar thereof; improved the shortcoming of the intrinsic hard fragility of mortar; improve the cracking resistance of mortar; anti-leakage; reduce hollowing; increase bonding force etc.; the quality of mortar is guaranteed; also improved simultaneously the workability of mortar; product easily is coated with to be scraped; improved water-retentivity; sag resistance; application property; make mortar be more suitable for mechanized construction; and it is few to have addition; the advantage that cost performance is high is specially adapted to extraordinary dry-mix, as the bonding mortar in the expansion polyphenyl plate thinly plastered external insulation system of outer wall and protection mortar; polyphenyl particle heat-insulating mortar; inorganic heat insulation mortar; cement self-leveling mortar etc.
Embodiment
The present invention is further illustrated below in conjunction with specific embodiment:
Embodiment 1
Taking by weighing by 20 parts of C8 unitary fatty alcohols, 70 parts of molecular weight is 50000 polycarboxylate, 10 parts of polyacrylonitrile cashew nut shape fiber, 1 part of acrylic block copolymer and 0.5 part of dry-mix auxiliary agent 20 grams that nano silica powder is formed that length is 6mm, join in the mixture of being formed by 300 gram cement and 680 gram sands, stir, left standstill 30 minutes, add 250 gram water, stir, left standstill 5 minutes, restir is even, makes working mortar.
Embodiment 2
Taking by weighing by 20 parts of C12 unitary fatty alcohols, 48 parts of molecular weight is 30000 polycarboxylate, 30 parts of polyacrylonitrile rice shape fiber, 2 parts of acrylic block copolymers and 1 part of dry-mix auxiliary agent 30 grams that nano silica powder is formed that length is 4mm, join in the mixture of being formed by 340 gram cement and 630 gram sands, stir, add 260 gram water, stir, can on body of wall, construct, then bonding styrofoam.
Embodiment 3
Take by weighing by 40 parts of C16 unitary fatty alcohols, 30 parts of molecular weight are 5000 polycarboxylate, 18 parts of polyacrylonitrile rice shape fiber, 10 parts of acrylic block copolymers and 3 parts of dry-mix auxiliary agent 40 grams that nano silica powder is formed that length is 2mm, join in the mixture of being formed by 360 gram cement and 600 gram sands, stir, add 300 gram water, stir, can on expansion polyphenyl plate, construct.
Embodiment gained mortar contrasts as following table with the sample mortar performance that does not add dry-mix auxiliary agent of the present invention:
| With body of wall bonding strength (Mpa) | With styrofoam bonding strength (Mpa) | The cracking index | Application property | Surface drying time (h) | The construction time limit (h) | |
| Example one | 1.4 | 0.2 | 10 | Easily construction | 0.5 | 4 |
| Example two | 1.5 | 0.2 | 8 | Easily construction | 0.5 | 4 |
| Example three | 1.8 | 0.2 | 4 | Easily construction | 0.5 | 4 |
| Comparative sample | 0.7 | 0.08 | 300 | Sticking cutter | 1 | 2 |
Claims (4)
1. dry-mix auxiliary agent, made and parts by weight are by following component:
Fatty Alcohol(C12-C14 and C12-C18) 20～40;
Polycarboxylate 30～70;
Polyacrylonitrile fibre 10～30;
Acrylic block copolymer 1～10;
Nano silica powder 0.5～3;
Described Fatty Alcohol(C12-C14 and C12-C18) is unitary fatty alcohol; Described unitary fatty alcohol is the unitary fatty alcohol of C8-C16; Described polycarboxylate is that number-average molecular weight is the polycarboxylate of 5000-50000.
2. dry-mix auxiliary agent as claimed in claim 1, it is characterized in that: described polyacrylonitrile fibre is the polyacrylonitrile profile fibre of length 2-6mm.
3. dry-mix auxiliary agent as claimed in claim 2, it is characterized in that: described polyacrylonitrile profile fibre is a kind of or its combination of polyacrylonitrile cashew nut shape fiber, polyacrylonitrile rice shape fiber.
4. the application of a dry-mix auxiliary agent as claimed in claim 1 in mortar is characterized in that, comprises the steps:
A, take by weighing each component by above-mentioned parts by weight, mix and stir, make the dry-mix auxiliary agent;
B, be 100% with total weight percent, weight percent is respectively 2～4% dry-mix auxiliary agent, 30～36% cement, 60～68% sand mixing and stirring;
C, in the mixture of step B gained, with water cement ratio 1: 3-4 adds water, and stirs, and makes working mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810241465 CN101746987B (en) | 2008-12-13 | 2008-12-13 | Dry powder mortar aid and application thereof in mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810241465 CN101746987B (en) | 2008-12-13 | 2008-12-13 | Dry powder mortar aid and application thereof in mortar |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101746987A CN101746987A (en) | 2010-06-23 |
| CN101746987B true CN101746987B (en) | 2013-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810241465 Expired - Fee Related CN101746987B (en) | 2008-12-13 | 2008-12-13 | Dry powder mortar aid and application thereof in mortar |
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| CN (1) | CN101746987B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104496378A (en) * | 2015-01-06 | 2015-04-08 | 天津市南开区房产公司 | Modified plastering mortar and preparation process thereof |
| CN109824315B (en) * | 2019-04-16 | 2022-08-05 | 四川朝岩新材料科技有限公司 | Formula and preparation method of environment-friendly mortar for wall surface |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244909A (en) * | 2008-03-24 | 2008-08-20 | 湖南省建筑工程集团总公司 | Highly durable high slump loss resistant no-bleeding concrete pump delivering agent |
-
2008
- 2008-12-13 CN CN 200810241465 patent/CN101746987B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244909A (en) * | 2008-03-24 | 2008-08-20 | 湖南省建筑工程集团总公司 | Highly durable high slump loss resistant no-bleeding concrete pump delivering agent |
Non-Patent Citations (4)
| Title |
|---|
| "干混砂浆外加剂";黄翠华;《化学建材》;20061231;第22卷(第5期);47-49 * |
| "纳米微粉 SiO2 和 CaCO3 对混凝土性能影响";李固华等;《铁道学报》;20060228;第28卷(第1期);131-136 * |
| 李固华等."纳米微粉 SiO2 和 CaCO3 对混凝土性能影响".《铁道学报》.2006,第28卷(第1期),131-136. |
| 黄翠华."干混砂浆外加剂".《化学建材》.2006,第22卷(第5期),47-49. |
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| CN101746987A (en) | 2010-06-23 |
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Free format text: FORMER OWNER: SHENZHEN OCEANPOWER CHEMICAL TECHNOLOGY CO., LTD. SHANGHAI KNP CHEMICAL CO., LTD. HEYUAN OCEANPOWER TECHNOLOGY CO., LTD. Effective date: 20140410 Owner name: SHENZHEN OCEANPOWER NEW MATERIALS TECHNOLOGY CO., Free format text: FORMER OWNER: HAICHUAN INDUSTRY CO., LTD., SHENZHEN Effective date: 20140410 |
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Effective date of registration: 20140410 Address after: 518040 Guangdong city of Shenzhen province Futian District Che Kung Temple Cheonan digital city building F3.8, block D, floor seven C Patentee after: Shenzhen Oceanpower New Material Technology Co., Ltd. Address before: 518040 Guangdong city of Shenzhen province Futian District Che Kung Temple Cheonan digital city building F3.8, block D, floor seven C Patentee before: Haichuan Industry Co., Ltd., Shenzhen Patentee before: Shenzhen Oceanpower Chemical Technology Co., Ltd. Patentee before: Shanghai KNP Chemical Co., Ltd. Patentee before: Heyuan Oceanpower Technology Co., Ltd. |
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Granted publication date: 20130814 Termination date: 20161213 |
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