CN101514086B - Mortar or concrete crack-resisting reinforcing agent - Google Patents
Mortar or concrete crack-resisting reinforcing agent Download PDFInfo
- Publication number
- CN101514086B CN101514086B CN2009100217510A CN200910021751A CN101514086B CN 101514086 B CN101514086 B CN 101514086B CN 2009100217510 A CN2009100217510 A CN 2009100217510A CN 200910021751 A CN200910021751 A CN 200910021751A CN 101514086 B CN101514086 B CN 101514086B
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- CN
- China
- Prior art keywords
- fiber
- fibre
- modulus
- mortar
- strength
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B40/00—Processes, in general, for influencing or modifying the properties of mortars, concrete or artificial stone compositions, e.g. their setting or hardening ability
- C04B40/0028—Aspects relating to the mixing step of the mortar preparation
- C04B40/0039—Premixtures of ingredients
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/34—Non-shrinking or non-cracking materials
- C04B2111/343—Crack resistant materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
The invention relates to a mortar or concrete crack-resisting reinforcing agent, which is composed of, based on the total weight, 1%-5% of high-strength high-modulus fiber, 30%-44% of microsilicon powder, 40%-50% of fly ash, 1%-5% of polyvinyl alcohol powder, 1%-5% of redispersible latex powder, 1%-5% of hydroxypropyl methylcellulose, 1%-5% of a water reducing agent, 0.01%-1% of an air entraining agent and 1%-4% of a fiber dispersing agent. The invention is simple in technique and low in cost as well as can efficiently solve the problem of cracked walls of a building.
Description
Technical field
The present invention relates to a kind of mortar or concrete admixture, relate in particular to a kind of mortar or concrete crack-resisting reinforcing agent.
Background technology
At present, all has high compression strength after mortar or the concrete hardening, but also have a lot of defectives: tensile strength is low, impact resistance difference and resistance to cleavage are poor, and be prone to many cup shakes and Temperature Cracks, because As time goes on these small crackles can develop into large fracture, influence mortar or concrete weather resistance, thereby caused the cracking of building masonry wall.
Summary of the invention
Technical problem to be solved by this invention provides and a kind ofly can effectively solve building masonry wall rimose mortar or concrete crack-resisting reinforcing agent.
Another technical problem to be solved by this invention provides a kind of method for preparing mortar or concrete crack-resisting reinforcing agent.
For addressing the above problem, a kind of mortar of the present invention or concrete crack-resisting reinforcing agent is characterized in that: it is made up of 1%～5% the high-strength high-modulus fibre that accounts for gross weight, 30%～44% SILICA FUME, 40%～50% flyash, 1%～5% pva powder, 1%～5% redispersable latex powder, 1%～5% Vltra tears, 1%～5% water reducer, 0.01%～1% air entrapment agent and 1%～4% dispersing agent for fibre.
Described high-strength high-modulus fibre is a high strength high modulus polyvinyl alcohol fiber.
Described high-strength high-modulus fibre is meant the high strength high modulus polyvinyl alcohol fiber that accounts for gross weight 70%～80% and accounts for the conjugated fibre of the auxiliary fiber composition of gross weight 20%～30%; Wherein said auxiliary fiber is any one in alkali resistant glass, high-strength polyester fiber, polyethylene fibre, polypropylene fiber, acrylic fiber, nylon fiber, aramid fiber and the carbon fiber.
The staple length of described high-strength high-modulus fibre is 0.2～6.0mm.
Prepare the method for aforesaid a kind of mortar or concrete crack-resisting reinforcing agent, it may further comprise the steps:
(1) by each raw material of proportioning weighing;
(2) the high-strength high-modulus fibre input is had in the blender of high speed fly cutter, and the adding dispersing agent for fibre stirs;
(3) SILICA FUME, flyash, pva powder, redispersable latex powder, Vltra tears, water reducer, air entrapment agent being dropped into the blender that has the high speed fly cutter successively stirs;
(4) after high-strength high-modulus fibre reaches the homodisperse degree, carry out the automatic gauge packing and get final product.
The present invention compared with prior art has the following advantages:
1, because fiber of the present invention is a high strength high modulus polyvinyl alcohol fiber or based on the conjugated fibre of high strength high modulus polyvinyl alcohol fiber, and this kind fiber not only has advantages of higher tensile strength (1200～1500Mpa) and Young's modulus (35～40GPa), alkali resistance, acid resistance and good sunlight resistance and certain wetting ability preferably, and because the cross section of this kind fiber all is abnormity, have good affinity with the interface of cement matrix, therefore can satisfy mortar or concrete demand.
2, because the present invention has added high-strength high-modulus fibre in mortar or concrete, therefore mortar or the new intension of concrete have been given, become the synergistic effect of chemistry and physics combination by the single chemical effect of script, making it resistance to cleavage is enhanced, solve the cracking problem of building masonry wall effectively, also improved mortar or concrete weather resistance simultaneously effectively.
3, technology of the present invention is simple, cost is low, is easy to suitability for industrialized production.
Embodiment
1 one kinds of mortars of embodiment or concrete crack-resisting reinforcing agent 100kg are that high-strength high-modulus fibre 1kg, SILICA FUME 44kg, flyash 50kg, pva powder 1kg, redispersable latex powder 1kg, Vltra tears 1kg, water reducer 1kg, air entrapment agent 0.01kg and the dispersing agent for fibre 1kg of 0.2～6.0mm forms by staple length.Wherein high-strength high-modulus fibre is a high strength high modulus polyvinyl alcohol fiber.
Each raw material is the commercially available prod.
Prepare the method for aforesaid a kind of mortar or concrete crack-resisting reinforcing agent, it may further comprise the steps:
(1) by each raw material of proportioning weighing;
(2) the high-strength high-modulus fibre input is had in the blender (ZL200410026255.1/ application number 200710162938.3) of high speed fly cutter, and add dispersing agent for fibre stirring 3～5 minutes, it is mixed;
(3) SILICA FUME, flyash, pva powder, redispersable latex powder, Vltra tears, water reducer, air entrapment agent are dropped into successively the blender that has the high speed fly cutter and stirred 3～5 minutes, it is mixed;
(4) when naked-eye observation does not have the conglomeration thing, reach the homodisperse degree when high-strength high-modulus fibre, carry out automatic gauge then, get final product by 25～40kg/ bag packing.
2 one kinds of mortars of embodiment or concrete crack-resisting reinforcing agent 100kg are that high-strength high-modulus fibre 5kg, SILICA FUME 30kg, flyash 40kg, pva powder 5kg, redispersable latex powder 5kg, Vltra tears 5kg, water reducer 5kg, air entrapment agent 1kg and the dispersing agent for fibre 4kg of 0.2～6.0mm forms by staple length.
Wherein: high-strength high-modulus fibre is the conjugated fibre that the auxiliary fiber of the high strength high modulus polyvinyl alcohol fiber of 3500g and 1500g is formed; Auxiliary fiber is any one in alkali resistant glass, high-strength polyester fiber, polyethylene fibre, polypropylene fiber, acrylic fiber, nylon fiber, aramid fiber and the carbon fiber.
Each raw material is the commercially available prod.
The preparation method is with embodiment 1.
3 one kinds of mortars of embodiment or concrete crack-resisting reinforcing agent 100kg are that high-strength high-modulus fibre 3kg, SILICA FUME 38kg, flyash 45kg, pva powder 2.5kg, redispersable latex powder 2.5kg, Vltra tears 3kg, water reducer 2.5kg, air entrapment agent 0.5kg and the dispersing agent for fibre 3kg of 0.2～6.0mm forms by staple length.
Wherein high-strength high-modulus fibre is the conjugated fibre that the auxiliary fiber of the high strength high modulus polyvinyl alcohol fiber of 2400g and 600g is formed; Auxiliary fiber is with embodiment 2.
Each raw material is the commercially available prod.
The preparation method is with embodiment 1.
4 one kinds of mortars of embodiment or concrete crack-resisting reinforcing agent 100kg are that high-strength high-modulus fibre 1kg, SILICA FUME 44kg, flyash 50kg, pva powder 1kg, redispersable latex powder 1kg, Vltra tears 1kg, water reducer 1kg, air entrapment agent 0.01kg and the dispersing agent for fibre 1kg of 0.2～6.0mm forms by staple length.
Wherein high-strength high-modulus fibre is the conjugated fibre that the auxiliary fiber of the high strength high modulus polyvinyl alcohol fiber of 750g and 250g is formed; Auxiliary fiber is with embodiment 2.
Each raw material is the commercially available prod.
The preparation method is with embodiment 1.
Claims (3)
1. mortar or concrete crack-resisting reinforcing agent is characterized in that: it is made up of 1%～5% the high-strength high-modulus fibre that accounts for gross weight, 30%～44% SILICA FUME, 40%～50% flyash, 1%～5% pva powder, 1%～5% redispersable latex powder, 1%～5% Vltra tears, 1%～5% water reducer, 0.01%～1% air entrapment agent and 1%～4% dispersing agent for fibre; Described high-strength high-modulus fibre is meant the high strength high modulus polyvinyl alcohol fiber that accounts for gross weight 70%～80% and accounts for the conjugated fibre of the auxiliary fiber composition of gross weight 20%～30%; Wherein said auxiliary fiber is any one in alkali resistant glass, high-strength polyester fiber, polyethylene fibre, polypropylene fiber, acrylic fiber, nylon fiber, aramid fiber and the carbon fiber.
2. a kind of mortar as claimed in claim 1 or concrete crack-resisting reinforcing agent is characterized in that: the staple length of described high-strength high-modulus fibre is 0.2～6.0mm.
3. prepare the method for a kind of mortar as claimed in claim 1 or concrete crack-resisting reinforcing agent, it may further comprise the steps:
(1) by each raw material of proportioning weighing;
(2) the high-strength high-modulus fibre input is had in the blender of high speed fly cutter, and the adding dispersing agent for fibre stirs;
(3) SILICA FUME, flyash, pva powder, redispersable latex powder, Vltra tears, water reducer, air entrapment agent being dropped into the blender that has the high speed fly cutter successively stirs;
(4) after high-strength high-modulus fibre reaches the homodisperse degree, carry out the automatic gauge packing and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100217510A CN101514086B (en) | 2009-03-16 | 2009-03-16 | Mortar or concrete crack-resisting reinforcing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100217510A CN101514086B (en) | 2009-03-16 | 2009-03-16 | Mortar or concrete crack-resisting reinforcing agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101514086A CN101514086A (en) | 2009-08-26 |
| CN101514086B true CN101514086B (en) | 2011-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100217510A Expired - Fee Related CN101514086B (en) | 2009-03-16 | 2009-03-16 | Mortar or concrete crack-resisting reinforcing agent |
Country Status (1)
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| CN (1) | CN101514086B (en) |
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| CN102926499B (en) * | 2012-11-05 | 2016-04-06 | 沈阳建筑大学 | Gangue insulation immature soil building block and preparation method thereof |
| CN106277896A (en) * | 2015-06-10 | 2017-01-04 | 嘉华特种水泥股份有限公司 | A kind of concrete duct impact-resistant wearable agent |
| CN104973818A (en) * | 2015-06-29 | 2015-10-14 | 湖州华仑助剂科技有限公司 | Anti-crack reinforcing agent for concrete |
| CN106245794A (en) * | 2015-07-24 | 2016-12-21 | 浙江沃华环境科技有限公司 | One is for building does not fire polyphenyl composite insulation board |
| CN106245795A (en) * | 2015-07-24 | 2016-12-21 | 浙江沃华环境科技有限公司 | One is for building does not fire rock wool composite insulation board |
| CN106284709A (en) * | 2015-07-24 | 2017-01-04 | 浙江沃华环境科技有限公司 | A kind of fire-retardant polyphenyl composite insulation board for building |
| CN105130263A (en) * | 2015-09-01 | 2015-12-09 | 武汉华权节能墙体设备科技研究有限公司 | Energy-saving composite wallboard additive |
| CN107117856B (en) * | 2017-06-13 | 2019-09-10 | 石家庄市长安育才建材有限公司 | Pure pulvis pervious concrete reinforcing agent and its application method with nano enhancement |
| CN107529527A (en) * | 2017-08-16 | 2018-01-02 | 北京海绵环境科技有限公司 | A kind of powdered pervious concrete reinforcing agent and preparation method thereof |
| CN108017317A (en) * | 2017-12-11 | 2018-05-11 | 福建奇胜环保建材科技有限公司 | A kind of steam-pressing aero-concrete water-proof high-intensity additive |
| CN110272242B (en) * | 2019-06-21 | 2021-08-17 | 湖北工业大学 | Anti-cracking polyvinyl alcohol green ultra-light base material and preparation method thereof |
| CN113105139B (en) * | 2021-03-18 | 2022-09-09 | 武汉三源特种建材有限责任公司 | Basalt fiber nano composite material for concrete and production process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4261754A (en) * | 1977-05-05 | 1981-04-14 | Dansk Eternit-Fabrik A/S | Fiber reinforced building products and method of producing same |
| CN1844023A (en) * | 2006-04-20 | 2006-10-11 | 上海交通大学 | Anti-cracking agent for mortar |
-
2009
- 2009-03-16 CN CN2009100217510A patent/CN101514086B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4261754A (en) * | 1977-05-05 | 1981-04-14 | Dansk Eternit-Fabrik A/S | Fiber reinforced building products and method of producing same |
| CN1844023A (en) * | 2006-04-20 | 2006-10-11 | 上海交通大学 | Anti-cracking agent for mortar |
Non-Patent Citations (1)
| Title |
|---|
| 谢兴建.混凝土抗裂防渗增强剂的研究与应用.《新型建筑材料》.2005,参见第19页右栏最后一段及图1. * |
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| CN101514086A (en) | 2009-08-26 |
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Granted publication date: 20111116 Termination date: 20140316 |