CN101993229A - Ultrahigh strength polymer mortar - Google Patents
Ultrahigh strength polymer mortar Download PDFInfo
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- CN101993229A CN101993229A CN2009101638502A CN200910163850A CN101993229A CN 101993229 A CN101993229 A CN 101993229A CN 2009101638502 A CN2009101638502 A CN 2009101638502A CN 200910163850 A CN200910163850 A CN 200910163850A CN 101993229 A CN101993229 A CN 101993229A
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Abstract
The invention discloses ultrahigh strength polymer mortar. The ultrahigh strength polymer mortar is prepared by mixing Portland cement, aluminous cement, mineral powder, a super plasticizer, redispersible emulsion powder, a high-efficiency water reducing agent, an expansion agent, cellulose ether and quartz sand, and is characterized by comprising 18.3 percent of ordinary Portland cement, 1.1 percent of aluminous cement, 26 percent of mineral powder, 0.6 percent of redispersible emulsion powder, 0.6 percent of super plasticizer, 3.2 percent of high-efficiency water reducing agent, 8.35 percent of expansion agent, 2.6 percent of cellulose ether and 39.3 percent of quartz sand. According to the phenomena of cracking, peeling and stripping of concrete body at the construction field, the materials are premixed according to the proportion to prepare dry concrete powder mortar or wet concrete paste so as to construct a thin layer on a cracked, peeled or stripped part; therefore, the surface of the concrete neutrally extends to the exterior, the cohesion, the workability and the compactness are enhanced, the convenience of the construction is improved, and the defects of short service life and the like of the conventional cement mortar for repairing concrete pavement are overcome. The polymer mortar is prepared by premixing of a factory, is simple in construction and can be widely applied to surface repair of damaged concrete pavement, protection of a surface layer of a decorative heat-insulating wall panel and construction of a ground floor of a high-strength wear-resistant workshop.
Description
Technical field
The present invention relates to a kind of inorganic polymer, repair on specifically a kind of surface that can be applicable to after the concrete road surface is damaged, decorative heat preservation wallboard surface layer is protected and the superelevation strength polymer mortar of high-strength wearable mill floor layer.
Background technology
The cement of one of concrete main raw with moisture in the concrete and the moisture generation hydration reaction in the surrounding environment, continues to increase concrete hardness.But with the prolongation of duration of service, concrete is subjected to influencing performance and also can reducing of various factors, crackle, peeling, obscission occur.Major cause may be because structure design be unreasonable, construction error, after the acidic substance such as sulfurous gas that discharge in overload in the use or strong basicity cement concrete pavement and Atmospheric Carbon Dioxide and the factory contact, neutralization reaction takes place, make the concrete surface pH value present neutrality, the variation that the concrete of deep layer is alkalescence and expands with heat and contract with cold, the sagging phenomenon of layering and ground appears, concrete ultimate compression strength and flexural strength have been reduced, crackle, peeling and dew sandstone have just appearred in concrete surface under the effect of certain load, finally separate.Occur to cause the lost of life of concrete member, safety performance to reduce, influence functions of use after this phenomenon.At present, the concrete road surface is repaired and mainly is divided into two big classes: structural repairing, ornamental repairing.Structural repairing is that the load-bearing concrete structure of damaging is repaired, and purpose is to keep and rebulid the stability of Xtah Crude Clay structure and recover concrete every function.Ornamental repairing mainly is to fill up duck eye, space, crackle to make it recover original appearance.Abroad, domestic repairing to concrete member did a lot of researchs, but effect is not very outstanding, has directly influenced work-ing life to a great extent.At western developed country, concrete structure building total expenses about 20% spends in the repair and maintenance of existing building.China to the maintenance cost of concrete construction relatively also in continuous increase.
Summary of the invention
The objective of the invention is crackle, peeling, obscission according to concrete member, provide a kind of and cut off fully that the concrete surface neutralisation extends inward, cohesive force intensity height, workability is good, degree of compactness is big,, the hardness that strengthens concrete topping close and wear resistance with the concrete coefficient of expansion, can synthetic in advance high-strength polymer mortar dry powder.
For realizing above-mentioned technical purpose, the present invention has adopted following technical scheme: a kind of superelevation strength polymer mortar is characterized in that: described superelevation strength polymer mortar is to be mixed by silicate cement, high-alumina cement, mineral substance powder, superplasticizer, redispersable latex powder, high efficiency water reducing agent, quartz sand, ether of cellulose and swelling agent.
Described component is by weight than being (%):
Ordinary Portland cement 18.3%, high-alumina cement 1.1%, mineral substance powder 26%, redispersable latex powder 0.6%, superplasticizer 0.6%, swelling agent 8.3%, efficient hydrophobizing agent 3.2%, ether of cellulose 2.6%, quartz sand 39.3%.
Wherein, cement is a kind of inorganic adhesive, and sand-cement slurry is that a kind of hard, fragility is big, the material of flexible difference, with the mixing uses, replenish mutually of organic adhesion agent redispersable latex powder, obtains the performance of excellence.
The mechanism of action of superplasticizer; Cement particle surface has different electric charges, and they are included in water wherein when caking, and by the adsorption of superplasticizer, the electric charge on neutralization surface is released water, reaches rapid hardening in the short period of time, and hardness reaches more than the 30mpa.The mortar that contains superplasticizer will obtain identical denseness, needs the water of less amount than the mortar that does not contain superplasticizer.
Redispersable latex powder, it can return to their original water-based emulsion state with after water mixes, and having the characteristic feature and the function of organic adhesion agent, after moisture partly evaporated, polymer particle was by bonding, form the one layer of polymeric film, thereby play the effect of tackiness agent.With inorganic adhesive, with the particle gluing of various fillers together, strengthened the structural strength of mortar material, and produce very strong adhesive power at the interface in mortar and basic unit, flexibility, bending strength, wear resisting property, toughness and water retention capacity and the workability of mortar have been improved, by adding hydrophobizing agent, make mortar have very strong waterproof effect.
Efficient hydrophobizing agent participates in, and makes mortar have very strong waterproof effect, keeps the mortar opening-wide state, has the advantage that obviously increases the service life, and improves the cohesive force of sclerosis mortar and matrix.
The mineral substance powder, mainly be active silica powder and active aluminium oxide powder, its objective is increases active, mobile, separating resistance, regulate viscosity and plasticity, micropore in the filling concrete is beneficial to improve intensity, the density of mortar, plays the effect of bearing big load limit drying shrinkage and bulking distortion, particularly to improving concrete weather resistance and preventing alkali-aggregate reaction, reduction hydration heat of concrete etc. has obvious effects.
Ether of cellulose, particle is thinner, has good water-retentivity, can provide good processing property and the anti-ability of hanging down for mortar, can be compatible with waterborne polymeric with many kinds of tensio-active agents, be more conducive to mix, make these mixtures be scattered in prevented from caking in the water, improve the open hour of binding agent with materials such as gypsum, lime, cement.
Participating in of swelling agent is that contraction and the coefficient of the coefficient that expand with heat and contract with cold and old concrete of control mortar in process of setting is close.
Quartz sand is a kind of silicate minerals of hard, wear-resisting, stable chemical performance, and its essential mineral composition SiO2 is up to 99%, and is strong with the silicate cement solubility, can strengthen the hardness and the wear resistance of concrete topping.
Meet the water hydratable reaction process according to cement in the construction process, regulate the bonding force between each component phase,, improved the convenience of construction by prefabricated mix
By comparing with the ordinary mortar that does not add admixture: (water cement ratio 1: 5) experimental result is as follows:
Experiment body manufactured according to the present invention is placed on 20 ℃ of temperature then, following 24 hours of the fixed temperature and humidity condition of humidity 100%.Then, be 20 ℃ in temperature, constant temperature is after 48 hours, make two 4cm * 4cm * 16cm size, under 20 ℃ of states, record folding strength 7.4mpa, ultimate compression strength 36.9mpa, humidity is maintenance 28 days under 50%～70% the condition, make two big small samples of 4cm * 4cm * 16cm, record folding strength 11.7mpa, ultimate compression strength 78.5mpa, this sample with reference to GB/T17671-1999, GB/T2419-2005,, degree of mobilization is controlled at 180～190mm.
Owing to take technique scheme, the present invention can cut off the phenomenon that the concrete surface neutralisation extends inward fully, and cohesive force intensity height, and workability, degree of compactness are big, and be approaching with the contraction ratio of matrix, and can modulate in advance.Can be widely used in the construction of surface construction and repairing, the protection of decorative heat preservation wallboard surface layer and the high-strength wearable mill floor layer of concrete road surface.
Embodiment
Below by specific embodiment implementation of the present invention is described.
Get ordinary Portland cement 18.3kg, high-alumina cement 1.1kg, mineral substance powder 26kg, redispersable latex powder 0.6kg, superplasticizer 0.6kg, efficient hydrophobizing agent 3.2kg, swelling agent 8.3kg, ether of cellulose 2.6kg, quartz sand 39.3kg.Above raw material mixed in the dry-mix mixing tank about 20 minutes, the powdery polymer that obtains mixing, during construction according to patching material 7.5: 1-8: 1 ratio adds water, stirs 3-5min and can construct.
Claims (2)
1. superelevation strength polymer mortar, it is characterized in that: described superelevation strength polymer mortar is mixed by silicate cement, high-alumina cement, mineral substance powder, superplasticizer, redispersable latex powder, high efficiency water reducing agent, swelling agent, ether of cellulose and quartz sand.
2. according to the described a kind of superelevation strength polymer mortar of claim 1, it is characterized in that: described component is by weight than being (%):
Ordinary Portland cement 18.3%
High-alumina cement 1.1%
Mineral substance powder 26%
Redispersable latex powder 0.6%
Superplasticizer 0.6%
Swelling agent 8.3%
High efficiency water reducing agent 3.2%
Ether of cellulose 2.6%
Quartz sand 39.3%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101638502A CN101993229A (en) | 2009-08-11 | 2009-08-11 | Ultrahigh strength polymer mortar |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101638502A CN101993229A (en) | 2009-08-11 | 2009-08-11 | Ultrahigh strength polymer mortar |
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| CN101993229A true CN101993229A (en) | 2011-03-30 |
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| CN2009101638502A Pending CN101993229A (en) | 2009-08-11 | 2009-08-11 | Ultrahigh strength polymer mortar |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399075A (en) * | 2010-09-15 | 2012-04-04 | 徐跃 | Deck coating having low temperature resistance |
| CN102503300A (en) * | 2011-10-27 | 2012-06-20 | 北京东方雨虹防水技术股份有限公司 | Single-component polymer cement waterproof mortar material |
| CN102731044A (en) * | 2012-07-10 | 2012-10-17 | 上海朗兆公路铁路养护工程技术有限公司 | Low-temperature ultrahigh-strength inorganic multi-purpose mortar |
| CN103274654A (en) * | 2013-06-09 | 2013-09-04 | 吉孟银 | Repairing mortar for concrete floor |
| CN104775451A (en) * | 2014-01-15 | 2015-07-15 | 青岛市城乡建设委员会 | Rapid disposal method for diseases near road manhole |
| CN104775450A (en) * | 2014-01-15 | 2015-07-15 | 青岛市城乡建设委员会 | Sinking-prevention structural body of well peripheral composite material |
| CN104860615A (en) * | 2015-03-27 | 2015-08-26 | 万华节能科技集团股份有限公司 | Mortar for concrete base surface repair, and preparation method thereof |
| CN104987001A (en) * | 2015-07-13 | 2015-10-21 | 鞍山中冶置业有限公司 | Preparation method for mortar of base layers of interior and exterior walls and decoration |
| CN105712671A (en) * | 2016-02-01 | 2016-06-29 | 辽宁省水利水电科学研究院 | Shrinkage compensating type high-performance mortar for grooving method closure grouting |
| CN105884284A (en) * | 2016-05-11 | 2016-08-24 | 北京中德新亚建筑技术有限公司 | Shrinkage-free self-compaction polymer concrete and preparation method thereof |
| CN105967567A (en) * | 2016-05-11 | 2016-09-28 | 北京中德新亚建筑技术有限公司 | High-polymer quick structure repairing material special for bridge expansion joint and preparation method thereof |
| CN106116341A (en) * | 2016-06-21 | 2016-11-16 | 浙江共创建材科技有限公司 | A kind of expediting setting type cement flooring mending mortar and preparation method thereof |
| CN106565168A (en) * | 2016-10-29 | 2017-04-19 | 成都市红鑫科技有限公司 | Quick-drying waterproof building material |
| CN108911632A (en) * | 2018-08-03 | 2018-11-30 | 上海住信住宅工业有限公司 | A kind of concrete repairing material and preparation method thereof |
| CN109400055A (en) * | 2018-11-07 | 2019-03-01 | 华新水泥股份有限公司 | A kind of dew sand concrete Surface hardened layer material and preparation method thereof |
-
2009
- 2009-08-11 CN CN2009101638502A patent/CN101993229A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399075A (en) * | 2010-09-15 | 2012-04-04 | 徐跃 | Deck coating having low temperature resistance |
| CN102399075B (en) * | 2010-09-15 | 2013-04-24 | 徐跃 | Deck coating having low temperature resistance |
| CN102503300A (en) * | 2011-10-27 | 2012-06-20 | 北京东方雨虹防水技术股份有限公司 | Single-component polymer cement waterproof mortar material |
| CN102731044A (en) * | 2012-07-10 | 2012-10-17 | 上海朗兆公路铁路养护工程技术有限公司 | Low-temperature ultrahigh-strength inorganic multi-purpose mortar |
| CN103274654A (en) * | 2013-06-09 | 2013-09-04 | 吉孟银 | Repairing mortar for concrete floor |
| CN104775451A (en) * | 2014-01-15 | 2015-07-15 | 青岛市城乡建设委员会 | Rapid disposal method for diseases near road manhole |
| CN104775450A (en) * | 2014-01-15 | 2015-07-15 | 青岛市城乡建设委员会 | Sinking-prevention structural body of well peripheral composite material |
| CN104860615A (en) * | 2015-03-27 | 2015-08-26 | 万华节能科技集团股份有限公司 | Mortar for concrete base surface repair, and preparation method thereof |
| CN104987001A (en) * | 2015-07-13 | 2015-10-21 | 鞍山中冶置业有限公司 | Preparation method for mortar of base layers of interior and exterior walls and decoration |
| CN105712671A (en) * | 2016-02-01 | 2016-06-29 | 辽宁省水利水电科学研究院 | Shrinkage compensating type high-performance mortar for grooving method closure grouting |
| CN105884284A (en) * | 2016-05-11 | 2016-08-24 | 北京中德新亚建筑技术有限公司 | Shrinkage-free self-compaction polymer concrete and preparation method thereof |
| CN105967567A (en) * | 2016-05-11 | 2016-09-28 | 北京中德新亚建筑技术有限公司 | High-polymer quick structure repairing material special for bridge expansion joint and preparation method thereof |
| CN106116341A (en) * | 2016-06-21 | 2016-11-16 | 浙江共创建材科技有限公司 | A kind of expediting setting type cement flooring mending mortar and preparation method thereof |
| CN106565168A (en) * | 2016-10-29 | 2017-04-19 | 成都市红鑫科技有限公司 | Quick-drying waterproof building material |
| CN108911632A (en) * | 2018-08-03 | 2018-11-30 | 上海住信住宅工业有限公司 | A kind of concrete repairing material and preparation method thereof |
| CN108911632B (en) * | 2018-08-03 | 2021-02-19 | 上海住信住宅工业有限公司 | Concrete repairing material and preparation method thereof |
| CN109400055A (en) * | 2018-11-07 | 2019-03-01 | 华新水泥股份有限公司 | A kind of dew sand concrete Surface hardened layer material and preparation method thereof |
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Application publication date: 20110330 |