CN105924108A - High-strength waterproof leak stopping mortar and preparation method thereof - Google Patents
High-strength waterproof leak stopping mortar and preparation method thereof Download PDFInfo
- Publication number
- CN105924108A CN105924108A CN201610557486.8A CN201610557486A CN105924108A CN 105924108 A CN105924108 A CN 105924108A CN 201610557486 A CN201610557486 A CN 201610557486A CN 105924108 A CN105924108 A CN 105924108A
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- China
- Prior art keywords
- mortar
- leak stopping
- hour
- add
- sodium bentonite
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Classifications
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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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
- C04B2111/00008—Obtaining or using nanotechnology related materials
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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
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/27—Water resistance, i.e. waterproof or water-repellent materials
-
- 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
- C04B2111/72—Repairing or restoring existing buildings or building materials
-
- 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a high-strength waterproof leak stopping mortar. Nano-zirconia is added and is organically modified to reduce the surface energy and realize amphiphilic surface, so a three-dimensional protection effect is used to make nanoparticles be uniformly dispersed in the mortar and difficultly agglomerate, thereby the compressive strength of the above product is improved; the obtained mortar is mutually compounded with a polymer styrene acrylic emulsion and polypropylene fibers, and physical and chemical actions are used to improve the surface energy of the polypropylene fibers, so the adhesion stress between the polypropylene fibers and the mortar is further improved, early stage micro-cracks are inhibited, and the impermeability, the flexural strength and the durability of the product are improved; and sodium-based bentonite is modified, the modified sodium-based bentonite is added to raw materials, and other effective additives are combined, so all components of the mortar are uniformly dispersed, and difficultly settle, thereby the waterproofing and leak stopping performances of the leak stopping mortar are obviously improved, and the rapid hardening speed of the leak stopping mortar is slowed.
Description
Technical field
The present invention relates to building material technical field, particularly relate to a kind of high-strength waterproof leak stopping mortar and preparation method thereof.
Background technology
Leakage of buildings problem is the common quality defect that building more highlights, trace it to its cause is that architectural engineering xoncrete structure is because of reason generation cracks such as autogenous shrinkage, temperature deformation, design defect or constructions, cause seepage, thus cause roof leakage, wall seepage, rendering layer obscission, not only upset orthobiosis and the work of people, and directly influencing the service life of whole solitary building, waterproofing and leakage-stopping mortar arises at the historic moment.Waterproofing and leakage-stopping mortar, with high grade cement, sand, stone as raw material, mixes multiple polymeric additive, by adjusting match ratio, improves cement pore structure, increases various raw-material density, or by compensating the anti-crack and anti-seepage ability shrinking raising concrete.
Waterproofing and leakage-stopping mortar is widely used in China, and manufacturing enterprise is numerous, from the point of view of base material essence, mainly with aluminate cement base or portland cement sill as base material.Aluminate cement later strength in wet condition can reduce, and portland cement exists length setting time, early strength development and slowly and produces the fundamental issues such as contraction after hardening, thus the new waterproof leak stopping mortar that reinforcing material is added in research is significant.
Polypropylene fibre has the advantage such as easy construction, with low cost, resistance to chemical attack, mix in cement mortar as reinforcing material, mortar generation of micro-crack in hardening process can be reduced, and stop or delay it to extend, thus be effectively improved the tensile strength of mortar.But polypropylene fibre smooth surface, surface can be without any active groups on low, strand, and surface hydrophobicity causes it poor with cement matrix adhesive property.Simultaneously, owing to there is a large amount of hole inside PP fiber reinforced cement mortar, cause cement-hydrate, polypropylene fibre and aggregate interracial contact the most abundant, reduce the endurance quality of cement mortar, these all have influence on polypropylene fibre application effect in cement-based material, constrain its range of application.For this, " polypropylene fibre impact on polymer cement mortar performance " uses a certain amount of styrene-acrylic emulsion of admixture to be modified Polypropylene Fibers Cement Mortar, result shows: admixture polypropylene fibre and styrene-acrylic emulsion are remarkably improved rupture strength and the anti-permeability performance of cement mortar simultaneously, when polypropylene fiber is 0.6kg/m3, styrene-acrylic emulsion volume is when being 10%, compared with benchmark mortar specimen, its 28d rupture strength and impermeability pressure increase 29.20% and 400% respectively.But, the comprcssive strength of the cement mortar that the processing method in employing literary composition obtains is low, also needs to be modified.
Nano material possesses skin effect, small-size effect, quantum size effect, macroparticle tunnel-effect, these special natures make it in polymer modification, improve coating, binder performance becomes irreplaceable material, the present invention uses nano material to add in raw material to styrene-acrylic emulsion is the most modified, to improve the comprcssive strength of product, water-fast impervious, the performances such as anticorrosion is ageing-resistant, but these special natures of nano material there is also certain limitation, such as due to small size is reunited than table energy great Yi, cause disperseing uneven, thus be necessary to be then added in raw material the nano material added is in addition modified, to improve all technical of product.
Summary of the invention
The object of the invention is contemplated to make up the defect of prior art, it is provided that a kind of high-strength waterproof leak stopping mortar and preparation method thereof.
The present invention is achieved by the following technical solutions:
A kind of high-strength waterproof leak stopping mortar, is prepared by the raw materials in: Portland cement 20-22, yellow sand 49-51, sodium bentonite 20-22, polypropylene fibre 3.8-4.3, styrene-acrylic emulsion 6-9, glass fibre 2.6-2.9, cellulose ether 1.5-2.1, nano zircite 1.7-2.4, fluorocarbon resin emulsion 10-12, polydimethylsiloxane 3-5, polyethyl acrylate 2-4, Zirconium orthosilicate. 0.6-0.8, suitable quantity of water.
The manufacture method of described a kind of high-strength waterproof leak stopping mortar, comprises the following steps:
(1) under nitrogen protection by fluorocarbon resin emulsion heated and boiled; add polyethyl acrylate, nano zircite keeps temperature to stir 1-2 hour; filter, washing dried, at subzero 15-20 DEG C freezing 3-5 hour, add glass fibre and pulverize prepared organic modified nano zirconium oxide；
(2) sodium bentonite is put in 60-80 DEG C of ultrasonic disperse 1-2 hour in concentrated hydrochloric acid, washing to neutral, 30-50 DEG C of vacuum drying, add polydimethylsiloxane, Zirconium orthosilicate. ultrasonic disperse obtains modification sodium bentonite for 2-3 hour；
(3) styrene-acrylic emulsion is heated to 80-90 DEG C, addition polypropylene fibre, cellulose ether, organic modified nano zirconium oxide are put into high mixer high speed and are stirred 1-2 hour, it is cooled to room temperature, add Portland cement, modified sodium bentonite and other residual componentss to grind 1-2 hour, discharging, wherein the ratio of mud is 1: 0.4.
The invention have the advantage that the present invention adds nano zircite and carried out organically-modified; reduce surface and can make it have facially amphiphilic; thus utilize three-dimensional protective effect to make nanoparticle be homogeneously dispersed in mortar and be difficult to reunite; improve the comprcssive strength of product; the most compound with polymer styrene-acrylic emulsion and polypropylene fibre again; by physics and chemical action; improve polypropylene fibre surface can; cohesive force between itself and mortar is improved further; inhibit the generation of micro-crack in early days, improve the impermeability of product, rupture strength and durability；The present invention also adds in raw material other effective additives of compatibility again to by modified for sodium bentonite so that each component of mortar is uniformly dispersed not free settling, hence it is evident that improves the waterproofing and leakage-stopping performance of leak stopping mortar and shortens its rapid hardening speed.
Detailed description of the invention
A kind of high-strength waterproof leak stopping mortar, is prepared by the raw materials in: Portland cement 20, yellow sand 49, sodium bentonite 20, polypropylene fibre 3.8, styrene-acrylic emulsion 6, glass fibre 2.6, cellulose ether 1.5, nano zircite 1.7, fluorocarbon resin emulsion 10, polydimethylsiloxane 3, polyethyl acrylate 2, Zirconium orthosilicate. 0.6, suitable quantity of water.
The manufacture method of described a kind of high-strength waterproof leak stopping mortar, comprises the following steps:
(1) under nitrogen protection by fluorocarbon resin emulsion heated and boiled; add polyethyl acrylate, nano zircite keeps temperature to stir 1-2 hour; filter, washing dried, at subzero 15-20 DEG C freezing 3-5 hour, add glass fibre and pulverize prepared organic modified nano zirconium oxide；
(2) sodium bentonite is put in 60-80 DEG C of ultrasonic disperse 1-2 hour in concentrated hydrochloric acid, washing to neutral, 30-50 DEG C of vacuum drying, add polydimethylsiloxane, Zirconium orthosilicate. ultrasonic disperse obtains modification sodium bentonite for 2-3 hour；
(3) styrene-acrylic emulsion is heated to 80-90 DEG C, addition polypropylene fibre, cellulose ether, organic modified nano zirconium oxide are put into high mixer high speed and are stirred 1-2 hour, it is cooled to room temperature, add Portland cement, modified sodium bentonite and other residual componentss to grind 1-2 hour, discharging, wherein the ratio of mud is 1: 0.4.
Utilize the present invention prepare its 28d rupture strength of waterproofing and leakage-stopping mortar be 8.56MPa, 28d comprcssive strength be 44.26MPa, impermeability pressure is 1.06 MPa.
Claims (2)
1. a high-strength waterproof leak stopping mortar, it is characterized in that, be prepared by the raw materials in: Portland cement 20-22, yellow sand 49-51, sodium bentonite 20-22, polypropylene fibre 3.8-4.3, styrene-acrylic emulsion 6-9, glass fibre 2.6-2.9, cellulose ether 1.5-2.1, nano zircite 1.7-2.4, fluorocarbon resin emulsion 10-12, polydimethylsiloxane 3-5, polyethyl acrylate 2-4, Zirconium orthosilicate. 0.6-0.8, suitable quantity of water.
The manufacture method of a kind of high-strength waterproof leak stopping mortar the most according to claim 1, it is characterised in that comprise the following steps:
(1) under nitrogen protection by fluorocarbon resin emulsion heated and boiled; add polyethyl acrylate, nano zircite keeps temperature to stir 1-2 hour; filter, washing dried, at subzero 15-20 DEG C freezing 3-5 hour, add glass fibre and pulverize prepared organic modified nano zirconium oxide；
(2) sodium bentonite is put in 60-80 DEG C of ultrasonic disperse 1-2 hour in concentrated hydrochloric acid, washing to neutral, 30-50 DEG C of vacuum drying, add polydimethylsiloxane, Zirconium orthosilicate. ultrasonic disperse obtains modification sodium bentonite for 2-3 hour；
(3) styrene-acrylic emulsion is heated to 80-90 DEG C, addition polypropylene fibre, cellulose ether, organic modified nano zirconium oxide are put into high mixer high speed and are stirred 1-2 hour, it is cooled to room temperature, add Portland cement, modified sodium bentonite and other residual componentss to grind 1-2 hour, discharging, wherein the ratio of mud is 1: 0.4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610557486.8A CN105924108A (en) | 2016-07-15 | 2016-07-15 | High-strength waterproof leak stopping mortar and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610557486.8A CN105924108A (en) | 2016-07-15 | 2016-07-15 | High-strength waterproof leak stopping mortar and preparation method thereof |
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| CN105924108A true CN105924108A (en) | 2016-09-07 |
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| CN201610557486.8A Pending CN105924108A (en) | 2016-07-15 | 2016-07-15 | High-strength waterproof leak stopping mortar and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352925A (en) * | 2017-06-30 | 2017-11-17 | 苏州吉云新材料技术有限公司 | A kind of high performance spherical silicon powder material for repairing |
| CN108503300A (en) * | 2018-03-16 | 2018-09-07 | 徐州东兴能源有限公司 | A kind of waterproof cement mortar |
| CN110527365A (en) * | 2019-09-12 | 2019-12-03 | 深圳市奇信集团股份有限公司 | A kind of environmental protection moisturizing interior wall coating and preparation method thereof |
| CN112552001A (en) * | 2020-12-07 | 2021-03-26 | 绵竹市铸诚混凝土有限公司 | Phosphogypsum mortar for load-bearing structure and preparation method thereof |
| CN114907079A (en) * | 2022-06-09 | 2022-08-16 | 新化县天马建筑新材料科技有限公司 | High-adhesion waterproof tile joint filling mortar and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396077A (en) * | 2013-07-24 | 2013-11-20 | 安徽英柯建材有限公司 | Crack-resistant thermal insulation mortar |
| CN103819153A (en) * | 2013-12-31 | 2014-05-28 | 安徽省美域节能环保技术应用有限公司 | Anti-freeze composite cement mortar |
-
2016
- 2016-07-15 CN CN201610557486.8A patent/CN105924108A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103396077A (en) * | 2013-07-24 | 2013-11-20 | 安徽英柯建材有限公司 | Crack-resistant thermal insulation mortar |
| CN103819153A (en) * | 2013-12-31 | 2014-05-28 | 安徽省美域节能环保技术应用有限公司 | Anti-freeze composite cement mortar |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107352925A (en) * | 2017-06-30 | 2017-11-17 | 苏州吉云新材料技术有限公司 | A kind of high performance spherical silicon powder material for repairing |
| CN108503300A (en) * | 2018-03-16 | 2018-09-07 | 徐州东兴能源有限公司 | A kind of waterproof cement mortar |
| CN110527365A (en) * | 2019-09-12 | 2019-12-03 | 深圳市奇信集团股份有限公司 | A kind of environmental protection moisturizing interior wall coating and preparation method thereof |
| CN112552001A (en) * | 2020-12-07 | 2021-03-26 | 绵竹市铸诚混凝土有限公司 | Phosphogypsum mortar for load-bearing structure and preparation method thereof |
| CN114907079A (en) * | 2022-06-09 | 2022-08-16 | 新化县天马建筑新材料科技有限公司 | High-adhesion waterproof tile joint filling mortar and preparation method thereof |
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Application publication date: 20160907 |