CN105503262A - Composite material for repairation and maintenance of cement mortar or concrete, preparation method and application method thereof - Google Patents
Composite material for repairation and maintenance of cement mortar or concrete, preparation method and application method thereof Download PDFInfo
- Publication number
- CN105503262A CN105503262A CN201510884719.0A CN201510884719A CN105503262A CN 105503262 A CN105503262 A CN 105503262A CN 201510884719 A CN201510884719 A CN 201510884719A CN 105503262 A CN105503262 A CN 105503262A
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- Prior art keywords
- concrete
- sand
- maintenance
- cement slurry
- matrix material
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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
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5072—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with oxides or hydroxides not covered by C04B41/5025
-
- 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
Abstract
The invention discloses a composite material for repairation and maintenance of cement mortar or concrete and an application method thereof, and belongs to the technical field of building materials. The composite material comprises the following raw materials: sodium silicate, malic acid, tartaric acid, laureth-9, sodium tripolyphosphate, potassium trimethylsilanolate, ethanediol, sodium sulfate and potassium hydroxide; the preparation method comprises the following steps: mixing and stirring the raw materials in a stirring machine for 30 minutes or above, sub-packaging and sealing for storage; the application method comprises the steps of cleaning the surface of cement mortar or concrete, spraying water for wetting, and coating the surface of cement mortar or concrete with the nano-composite material for repairation and maintenance of cement mortar or concrete. The composite material can deeply permeate into the inner part of concrete, so that moisture in concrete is effectively retained, the compactness degree of concrete is improved, cracks are prevented from being produced, old and new cracks with the width of 0.3 mm or below can be repaired, erosion to concrete due to external moisture and harmful ions is reduced, and the durability of concrete is improved; besides, the composite material has the characteristics of being convenient in construction, safe, nontoxic and suitable for large-scale popularization and application, and having remarkable economic benefits and social benefits.
Description
Technical field
The present invention relates to building material technical field, particularly relate to a kind of sand-cement slurry or concrete reparation maintenance matrix material and preparation method thereof and using method.
Background technology
Cement concrete is a kind of material of construction of fragility nonuniformity, and its inside exists a large amount of fine pore and crack, and tensile strength is low, and splitting resistance is very poor; Surface easily produces segmentation crack and micro-cracks, and segmentation crack and micro-cracks, once produce, will greatly increase concrete perviousness, and concrete permeability are the most critical factors affecting endurance performance of concrete.Newly-built concrete surface generally reduces the generation of crackle by maintenance, therefore, research concrete pouring and crack repair materials strengthen and improve concrete permeability resistance, improves a kind of important channel of concrete durability.
Current curing compound mainly contains silicates and emulsion class two kinds, but there is maintenance effect difference in practice, can the problems such as concrete strength be reduced in this bi-material, therefore in Practical Project, people's watering method that still selective gist is traditional more carries out maintenance to concrete, and tradition watering maintenance process is wasted time and energy, maintenance effect to external world climatope dependency is large, therefore maintenance effect can not be guaranteed.At present the remedial measures such as slip casting, leak stopping is taked mostly to the repairing of the macroscopic fracture that concrete has produced, but because injecting paste material self has larger viscosity, mobility is too poor, therefore cannot be pressed into concrete segmentation crack and micro-cracks smoothly, cause the repair efficiency of existing grouting method to segmentation crack and micro-cracks not good.In addition, even if use high pressure method that grout material is pressed into micro-cracks, wherein also there is construction cost high, the problems such as complex procedures, and grout material has the risk of easily shrinking and losing efficacy.
At present, on market, existing water conduction fracture can repair micro-cracks to a certain extent, but due to effective constituent particle comparatively large, can not deeply infiltrate into mortar or inside concrete, only maintenance reparation is formed to its surface, therefore its maintenance repair ability do not possess permanence; Especially cement based penetration crystallization type water proofing paint, during use, self coatingsurface also easily produces segmentation crack and micro-cracks, affects concrete appearance.
Summary of the invention
In order to overcome in existing concrete maintenance process and micro-cracks restorative procedure, maintenance effect is poor, operational procedure is complicated, poor durability, high in cost of production problem, the object of the present invention is to provide a kind ofly to have maintenance action and matrix material segmentation crack and micro-cracks to permanence repair ability and preparation method thereof and using method to sand-cement slurry or concrete surface.
To achieve these goals, technical scheme of the present invention is as follows: maintenance matrix material repaired by sand-cement slurry or concrete, and described material comprises: water glass, oxysuccinic acid, tartrate, laureth-9, tripoly phosphate sodium STPP, potassium methyl silicate, ethylene glycol, sodium sulfate and potassium hydroxide.
As optimal technical scheme, described material contains the sodium silicate aqueous solution of 20 ~ 40% of weight percent; The oxysuccinic acid of 0.5 ~ 4%; The tartrate of 0.5 ~ 2%; The laureth-9 of 0.05 ~ 0.1%; The tripoly phosphate sodium STPP of 0.1 ~ 1%; The methyl siliconic acid aqueous solutions of potassium of 1 ~ 10%; The ethylene glycol of 0.4 ~ 5%; The sodium sulfate of 0.2 ~ 2%; The potassium hydroxide of 0.05 ~ 3%, all the other are water;
As optimal technical scheme, when described sodium silicate aqueous solution is 20 DEG C, degree Beaume is 39 ~ 42, and namely proportion is the aqueous solution of 1.37 ~ 1.40;
As preferred technical scheme, described methyl siliconic acid aqueous solutions of potassium is the weight percent of potassium methyl silicate is the aqueous solution of 25 ~ 30%.
As optimal technical scheme, described water is deionized water, and resistivity is more than or equal to 10 mega-ohm centimeter.
The present invention also provides the above sand-cement slurry or concrete to repair the preparation method of maintenance nano composite material, and by described weight percent by raw material more than mix and blend 30min in stirrer, packing, sealing is preserved.
The present invention also provides the above sand-cement slurry or concrete to repair the using method of maintenance matrix material, for newly-built concrete, when using as curing agent, after concrete or sand-cement slurry final set, adopt low-pressure sprayer that described sand-cement slurry or concrete are repaired the surface that maintenance matrix material is sprayed on concrete or sand-cement slurry.
As optimal technical scheme, the spraying consumption of described using method is 150 ~ 200ml/m
2, spraying or brushing are once.
As optimal technical scheme, described using method is for old concrete, when using as crack repairing agent, first the surface of concrete or sand-cement slurry is cleaned with water, adopt the surface that sand-cement slurry or concrete are repaired the spraying of maintenance matrix material or brushed at concrete or sand-cement slurry by low-pressure sprayer or Roller brush after drying treatment, seasoning is vaporific watering maintenance more than 14 days on basal plane after 2 ~ 3 hours.Brush sand-cement slurry provided by the invention or concrete repair maintenance nano composite material just can the micro-cracks of rehabilitating concrete surface after more than 14 days.
As optimal technical scheme, described use spraying or brushing consumption are each 200 ~ 300ml/m
2, spraying or brushing twice, spray a water again and carry out maintenance between twice spraying or brushing.
The beneficial effect that maintenance matrix material repaired by sand-cement slurry provided by the invention or concrete is as follows:
Matrix material provided by the invention has the following advantages compared with traditional like product:
(1) compare with emulsion class curing agent with Conventional Portland class, matrix material energy percdation provided by the invention, closely knit hole, effectively pins moisture, suppresses crackle to produce, can also improve mortar or concrete surface intensity;
(2) compared with traditional grouting for water plugging material, matrix material provided by the invention is aqueous solution, has larger mobility and superpower penetrating power, can the micro-cracks of rehabilitating concrete surface segmentation crack and below 0.3mm, and the xln generated not easily shrinks, the life-span is permanent; Material easy construction, environmental protection;
(3) compared with cement-base infiltration crystallization material, in the deep enough infiltration concrete substrate of active substance energy that the present invention includes, do not change texture and the sense of touch of concrete itself, and there is permanent self-repair function, there is not the risk of reparation self cracking.
(4) matrix material provided by the invention has the advantage of easy construction, safety non-toxic, long service life.
Embodiment
Embodiment 1
Maintenance matrix material repaired by sand-cement slurry or concrete, and by weight percentage, its formula is as follows: the sodium silicate aqueous solution of 20%; The oxysuccinic acid of 0.5%; The tartrate of 0.5%; The laureth-9 of 0.05%; The tripoly phosphate sodium STPP of 0.1%; The methyl siliconic acid aqueous solutions of potassium of 7.75%; The ethylene glycol of 0.4%; The sodium sulfate of 0.2%; The potassium hydroxide of 0.5% and 70% deionized water.
Concrete preparation manipulation step is as follows: by weight percentage by above-mentioned raw materials more than mix and blend 30min in stirrer, packing, and sealing is preserved.
Embodiment 2
Maintenance matrix material repaired by sand-cement slurry or concrete, and by weight percentage, its formula is as follows: the sodium silicate aqueous solution of 25%; The oxysuccinic acid of 1%; The tartrate of 1%; The laureth-9 of 0.07%; The tripoly phosphate sodium STPP of 0.23%; The methyl siliconic acid aqueous solutions of potassium of 5.2%; The ethylene glycol of 1%; The sodium sulfate of 0.5%; The potassium hydroxide of 1% and 65% deionized water.
Preparation method is with embodiment 1.
Embodiment 3
Maintenance matrix material repaired by sand-cement slurry or concrete, and by weight percentage, its formula is as follows: the sodium silicate aqueous solution of 30%; The oxysuccinic acid of 1.5%; The tartrate of 1.5%; The laureth-9 of 0.08%; The tripoly phosphate sodium STPP of 0.32%; The methyl siliconic acid aqueous solutions of potassium of 5%; The ethylene glycol of 2%; The sodium sulfate of 1%; The potassium hydroxide of 1.5% and 57.1% deionized water.
Preparation method is with embodiment 1.
Embodiment 4
Maintenance matrix material repaired by sand-cement slurry or concrete, and by weight percentage, its formula is as follows: the sodium silicate aqueous solution of 32.9%; The oxysuccinic acid of 2%; The tartrate of 2%; The laureth-9 of 0.1%; The tripoly phosphate sodium STPP of 0.5%; The methyl siliconic acid aqueous solutions of potassium of 6%; The ethylene glycol of 3%; The sodium sulfate of 1.5%; The potassium hydroxide of 2% and 50% deionized water.
Test example 1
Control experiment situation is as follows:
Cement concrete flat board is of a size of 300cm × 300cm × 30cm, and be equally divided into 9 regions, numbering 1# respectively ~ 9#, each region is of a size of 100cm × 100cm × 30cm, and concrete flat slab proportioning is in table 1.
The proportioning of table 1 concrete flat slab
Concrete flat slab sprays the nano composite material of embodiment 1 ~ embodiment 4 preparation respectively at the planar surface being numbered 1# ~ 4# after shaping 2 days, spraying total consumption is 150ml/m
2, spraying once; Be numbered the flat board of 5# ~ 9# as a control group, surface is spraying composite material not.By outer for concrete flat slab holding chamber 14 days, can find that 1# ~ 4# concrete slab does not have a Crack, and 5# ~ 9# concrete slab surface produces segmentation crack not of uniform size and micro-cracks, fracture width is all at below 0.3mm, and the maintenance effect that maintenance matrix material repaired by visible sand-cement slurry provided by the invention or concrete shows very much.
Test example 2
For the segmentation crack produced and micro-cracks, the using method that maintenance matrix material repaired by sand-cement slurry or concrete is as follows: the surface first cleaning concrete surface or sand-cement slurry with water, when the surface of concrete or mortar is without open fire, adopt low-pressure sprayer or barrel brush by matrix material spraying or the brushing surface at concrete or mortar; Spraying or brushing total consumption is 250ml/m
2, spraying or brushing at twice, sprays a water again and carries out maintenance between twice spraying or brushing.Seasoning is vaporific watering maintenance more than 14 days in aspect after 2 ~ 3 hours.Situation is repaired in the crack observing concrete surface after 14 days again.
Be numbered the concrete flat slab region of 5# ~ 8# respectively with matrix material brushing prepared by above-described embodiment 1 ~ 4 according to above method, compare with not using the surface crack situation being numbered the flat area of 9# of matrix material, detailed results is as shown in table 2.
Table 2 concrete surface crack number observed data
As can be seen from above-mentioned test observation data, spray sand-cement slurry provided by the invention or concrete repair maintenance matrix material can rehabilitating concrete surface segmentation crack and be less than the micro-cracks of 0.3mm, improve concrete outward appearance, greatly improve concrete weather resistance.
Above embodiment and test example, only for illustration of technical conceive of the present invention and feature, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to the present invention change or modification all should be encompassed within protection scope of the present invention.
Claims (8)
1. maintenance matrix material repaired by sand-cement slurry or concrete, and described material comprises: water glass, oxysuccinic acid, tartrate, laureth-9, tripoly phosphate sodium STPP, potassium methyl silicate, ethylene glycol, sodium sulfate and potassium hydroxide.
2. matrix material according to claim 1, is characterized in that, described material contains the sodium silicate aqueous solution of 20 ~ 40% of weight percent; The oxysuccinic acid of 0.5 ~ 4%; The tartrate of 0.5 ~ 2%; The laureth-9 of 0.05 ~ 0.1%; The tripoly phosphate sodium STPP of 0.1 ~ 1%; The methyl siliconic acid aqueous solutions of potassium of 1 ~ 10%; The ethylene glycol of 0.4 ~ 5%; The sodium sulfate of 0.2 ~ 2%; The potassium hydroxide of 0.05 ~ 3%, all the other are water;
When described sodium silicate aqueous solution is 20 DEG C, degree Beaume is 39 ~ 42, and namely proportion is the aqueous solution of 1.37 ~ 1.40;
Described methyl siliconic acid aqueous solutions of potassium is the weight percent of potassium methyl silicate is the aqueous solution of 25 ~ 30%.
3. matrix material according to claim 2, is characterized in that, described water is deionized water, and resistivity is more than or equal to 10 mega-ohm centimeter.
4. the preparation method of maintenance matrix material repaired by sand-cement slurry described in Claims 2 or 3 or concrete, it is characterized in that, by described weight percent by raw material more than mix and blend 30min in stirrer, packing, sealing is preserved.
5. the using method of maintenance matrix material repaired by sand-cement slurry described in Claims 2 or 3 or concrete, it is characterized in that, for newly-built concrete, when using as curing agent, after concrete or sand-cement slurry final set, adopt low-pressure sprayer that described sand-cement slurry or concrete are repaired the surface that maintenance nano composite material is sprayed on concrete or sand-cement slurry.
6. using method according to claim 5, spraying consumption is 150 ~ 200ml/m
2, spraying or brushing are once.
7. the using method of maintenance matrix material repaired by sand-cement slurry described in Claims 2 or 3 or concrete, it is characterized in that, for old concrete, when using as crack repairing agent, first naturally dry with the surface that water cleans concrete or sand-cement slurry until surface is without the surface adopting low-pressure sprayer or Roller brush that sand-cement slurry or concrete are repaired the spraying of maintenance matrix material or brushed at concrete or sand-cement slurry after open fire, seasoning is vaporific watering maintenance more than 14 days on basal plane after 2 ~ 3 hours.
8. using method according to claim 7, spraying or brushing consumption are each 200 ~ 300ml/m
2, spraying or brushing twice, spray a water again and carry out maintenance between twice spraying or brushing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510884719.0A CN105503262A (en) | 2015-12-07 | 2015-12-07 | Composite material for repairation and maintenance of cement mortar or concrete, preparation method and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510884719.0A CN105503262A (en) | 2015-12-07 | 2015-12-07 | Composite material for repairation and maintenance of cement mortar or concrete, preparation method and application method thereof |
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| CN105503262A true CN105503262A (en) | 2016-04-20 |
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| CN201510884719.0A Pending CN105503262A (en) | 2015-12-07 | 2015-12-07 | Composite material for repairation and maintenance of cement mortar or concrete, preparation method and application method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904928A (en) * | 2017-02-28 | 2017-06-30 | 江苏伊莱凯美新材料科技有限公司 | Controllable water-borne permeable crystalline waterproofing material of a kind of reaction speed and its preparation method and application |
| JP2019172564A (en) * | 2018-03-26 | 2019-10-10 | 国立大学法人山口大学 | Concrete patching agent |
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| CN102557726A (en) * | 2011-12-27 | 2012-07-11 | 华南理工大学 | High-permeability multi-effect concrete water-proofing agent and preparation method thereof |
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Patent Citations (4)
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| JPH0733556A (en) * | 1993-07-22 | 1995-02-03 | Nissan Chem Ind Ltd | Method for improving durability of concrete |
| CN101407428A (en) * | 2008-08-12 | 2009-04-15 | 广州秀珀化工股份有限公司 | Concrete superficial hardener and construction method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106904928A (en) * | 2017-02-28 | 2017-06-30 | 江苏伊莱凯美新材料科技有限公司 | Controllable water-borne permeable crystalline waterproofing material of a kind of reaction speed and its preparation method and application |
| CN106904928B (en) * | 2017-02-28 | 2019-05-07 | 苏州佳固士新材料科技有限公司 | A kind of water-borne permeable crystalline waterproofing material and its preparation method and application that reaction speed is controllable |
| JP2019172564A (en) * | 2018-03-26 | 2019-10-10 | 国立大学法人山口大学 | Concrete patching agent |
| JP7243982B2 (en) | 2018-03-26 | 2023-03-22 | 国立大学法人山口大学 | Concrete repair agent |
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