CN114213090A - Cement-based waterproof leaking stoppage reinforcing agent, preparation method and construction process thereof - Google Patents
Cement-based waterproof leaking stoppage reinforcing agent, preparation method and construction process thereof Download PDFInfo
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- CN114213090A CN114213090A CN202210004215.5A CN202210004215A CN114213090A CN 114213090 A CN114213090 A CN 114213090A CN 202210004215 A CN202210004215 A CN 202210004215A CN 114213090 A CN114213090 A CN 114213090A
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- cement
- reinforcing agent
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- based waterproof
- water
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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
- C04B28/06—Aluminous cements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
- E04G23/0211—Arrangements for filling cracks or cavities in building constructions using injection
-
- 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
- C04B2111/00017—Aspects relating to the protection of the environment
-
- 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
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00724—Uses not provided for elsewhere in C04B2111/00 in mining operations, e.g. for backfilling; in making tunnels or galleries
-
- 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
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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
- C04B2111/72—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
Abstract
The invention relates to a cement-based waterproof leaking stoppage reinforcing agent, a preparation method and a construction process thereof. The cement-based waterproof plugging reinforcing agent is prepared from the following raw materials: sulphoaluminate cement, cement-based infiltration crystallization master batch, quartz sand powder, lithium chloride, calcium stearate and hydroxypropyl methyl cellulose. The cement-based waterproof leaking stoppage reinforcing agent is mixed with water to prepare slurry which can permeate into concrete and a cement leveling layer, has stable performance and long-term waterproof leaking stoppage capability; the water pump can bear strong water pressure for a long time, and the net pressure resistance is over 5MPa through testing, and the compression resistance is strong; after a long time, the crystal can still be activated when meeting water, and a new crystal is generated to continue self-repairing; the crack below 0.8mm can be repaired, so that the concrete or cement leveling layer is more compact and has anti-corrosion performance; after construction, the concrete strength can be increased by more than 30% due to the enhanced density; it is a water-soluble product, and is environment-friendly, nontoxic and harmless.
Description
Technical Field
The invention belongs to the field of building repair, and particularly relates to a cement-based waterproof leaking stoppage reinforcing agent, and a preparation method and a construction process thereof.
Background
The cement-based waterproof material is usually a powdery substance, and active chemical components contained in the material can permeate into pores and gaps of concrete, brick walls, cement blocks and surface layers or structures of various waterproof materials along with water, so that the waterproof and leak-stopping effects are finally achieved.
However, the existing cement-based waterproof plugging material has incomplete effect due to the defects of component types and proportions, so the technical scheme of the invention is provided based on the defects.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a cement-based waterproof leaking stoppage reinforcing agent, a preparation method and a construction process thereof.
The scheme of the invention is to provide a cement-based waterproof plugging reinforcing agent, which is composed of the following raw materials: sulphoaluminate cement, cement-based infiltration crystallization master batch, quartz sand powder, lithium chloride, calcium stearate and hydroxypropyl methyl cellulose.
Preferably, the cement-based waterproof plugging reinforcing agent is prepared from the following raw materials in parts by weight: 500-600 parts of sulphoaluminate cement, 280-320 parts of a cement-based permeable crystallization master batch, 130-170 parts of quartz sand powder, 4-6 parts of lithium chloride, 1.5-2.5 parts of calcium stearate and 2-3 parts of hydroxypropyl methyl cellulose.
Preferably, the cement-based waterproof plugging reinforcing agent is prepared from the following raw materials in parts by weight: 550 parts of sulphoaluminate cement, 300 parts of cement-based permeable crystallization master batch, 150 parts of quartz sand powder, 5 parts of lithium chloride, 2 parts of calcium stearate and 2.5 parts of hydroxypropyl methyl cellulose.
Based on the same technical concept, the invention also provides a preparation method of the cement-based waterproof plugging reinforcing agent, which comprises the following steps: mixing all the raw materials, and stirring.
Preferably, the stirring speed is 60-80 r/min, and the stirring time is 30-40 min.
Based on the same technical concept, the other scheme of the invention is to provide a grouting construction process, wherein the cement-based waterproof plugging reinforcing agent is subjected to a grouting construction process or a brushing construction process.
Specifically, the grouting construction process comprises the following steps:
(1) and mixing the cement-based waterproof plugging reinforcing agent with clean water, stirring, and obtaining the slurry after stirring. The slurry is required to be used up within 60min, one-time stirring cannot exceed 50kg, and the hardened mortar cannot be used again. The proportion of water and reinforcing agent is strictly controlled, and 4 parts of reinforcing agent is generally required to be added with 1 part of clean water and stirred until the mixture is pasty (the mixture can be properly adjusted according to the temperature difference condition of the engineering). Stirring uniformly during stirring, wherein dry material balls which are not stirred open cannot exist in the slurry, and the stirring time is not less than 15 min.
(2) And before grouting, discharging water at the grouting position. The grouting part is generally arranged between the waterproof layer and the leveling layer. And plugging can be carried out outside the wall.
(3) And judging the position, distance, direction and depth of the grouting nozzle according to the actual situation on site. Typically 100m2Burying a grouting nozzle, and when water is seeped in a large area, the distance between the grouting nozzle and the water can be 10-30 m2Burying a grouting nozzle, and performing alternately.
(4) The drilling is carried out, the drilling depth is determined according to the thickness of the wall, and generally, the drilling depth of the wall with the depth of 24cm is between 22cm and 23.5 cm. Then the remaining thickness is broken by a drill to avoid damaging the waterproof layer. Then the water in the grouting pipe is discharged, and the grouting nozzle is fixed.
(5) And (4) grouting, selecting and using an inner concrete grouting method or an outer concrete grouting method according to the condition of field analysis, and simultaneously mastering the grouting amount.
(6) And (5) removing the grouting nozzle and plugging for 8-12 h, and completing and cleaning.
Specifically, the painting construction process comprises the following steps:
(S1) mixing the cement-based waterproof plugging reinforcing agent with clean water, stirring, and obtaining slurry after stirring. 3 parts of a reinforcing agent and 1 part of clean water are stirred to be thick paste.
(S2) when brushing, the material consumption per square meter is more than or equal to 3.0kg, the coating thickness is 1.8-2.8 mm, and brushing is carried out for more than 2 times.
(S3) cleaning the brushing base surface during construction, and wetting and maintaining the coating exposed to the sun for 1-2 days by using clear water.
The cement-based waterproof leaking stoppage reinforcing agent can be used for waterproof leaking stoppage construction of tunnels, reservoirs, cooling towers, subways, elevator pits, civil air defence, pile foundations, sewage pools, basements, kitchens and bathrooms, brick walls, cement block walls and the like and treatment of various diseases of concrete, cement leveling layers and various waterproof material structures.
The invention has the beneficial effects that:
the cement-based waterproof plugging reinforcing agent is mixed with water to prepare slurry which can permeate into concrete and a cement leveling layer, has stable performance and long-term waterproof plugging capability; the water pump can bear strong water pressure for a long time, and the net pressure resistance is over 5MPa through testing, and the compression resistance is strong; after a long time, the crystal can still be activated when meeting water, and a new crystal is generated to continue self-repairing; the crack below 0.8mm can be repaired, so that the concrete or cement leveling layer is more compact and has anti-corrosion performance; after construction, the concrete strength can be increased by more than 30% due to the enhanced density; it is a water-soluble product, and is environment-friendly, nontoxic and harmless.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Example 1
The embodiment provides a preparation method of a cement-based waterproof plugging reinforcing agent, which specifically comprises the following steps: 500kg of sulphoaluminate cement (type 525), 280kg of cement-based permeable crystallization master batch, 130kg of quartz sand powder (80-160 meshes), 4kg of lithium chloride (99 percent, anhydrous white powder), 1.5kg of calcium stearate and 2kg of hydroxypropyl methyl cellulose (viscosity 15 ten thousand) are stirred for 30min under the condition of 60 r/min.
Example 2
The embodiment provides a grouting construction process, and the cement-based waterproof plugging reinforcing agent obtained in the embodiment 1 is adopted, and the grouting construction process comprises the following steps:
(1) and mixing the cement-based waterproof plugging reinforcing agent with clean water, stirring, and obtaining the slurry after stirring. The slurry is required to be used up within 60min, 40kg of one-time stirring material is required, and the hardened mortar can not be used again. The ratio of water to the reinforcing agent needs to be strictly controlled, and 4 parts of reinforcing agent is required to be added with 1 part of clean water and stirred to be pasty. Stirring uniformly during stirring, wherein dry material balls which are not stirred open cannot exist in the slurry, and the stirring time is 30 min.
(2) And before grouting, discharging water at the grouting position. The grouting part is generally arranged between the waterproof layer and the leveling layer.
(3) And judging the position, distance, direction and depth of the grouting nozzle according to the actual situation on site. At 100m2Burying a grouting nozzle.
(4) And (5) drilling, wherein the drilling depth of the wall body with the depth of 24cm is 22 cm-23.5 cm. Then the remaining thickness is broken by a drill to avoid damaging the waterproof layer. Then the water in the grouting pipe is discharged, and the grouting nozzle is fixed.
(5) And (4) grouting, selecting and using an inner concrete grouting method or an outer concrete grouting method according to the condition of field analysis, and simultaneously mastering the grouting amount.
(6) And (5) removing the grouting nozzle within 12h, plugging and completing and cleaning.
Example 3
The embodiment provides a preparation method of a cement-based waterproof plugging reinforcing agent, which specifically comprises the following steps: 600kg of sulphoaluminate cement (type 525), 320kg of cement-based permeable crystallization master batch, 170kg of quartz sand powder (80-160 meshes), 6kg of lithium chloride (99 percent, anhydrous white powder), 2.5kg of calcium stearate and 3kg of hydroxypropyl methyl cellulose (viscosity 15 ten thousand) are stirred for 40min under the condition of 80 r/min.
Example 4
The embodiment provides a painting construction process, and the cement-based waterproof plugging reinforcing agent obtained in the embodiment 3 is adopted, and the method comprises the following steps:
(S1) mixing the cement-based waterproof plugging reinforcing agent with clean water, stirring, and obtaining slurry after stirring. 3 parts of a reinforcing agent and 1 part of clean water are stirred to be thick paste.
(S2) when brushing, the material consumption per square meter is 3.0kg, the coating thickness is 1.8mm, and brushing is carried out for more than 2 times.
(S3) cleaning the brushing base surface during construction, and wetting and maintaining the coating exposed to the sun for 1-2 days by using clear water.
Example 5
The embodiment provides a preparation method of a cement-based waterproof plugging reinforcing agent, which specifically comprises the following steps: 550kg of sulphoaluminate cement (type 525), 300kg of cement-based permeable crystallization master batch, 150kg of quartz sand powder (80-160 meshes), 5kg of lithium chloride (99 percent, anhydrous white powder), 2kg of calcium stearate and 2.5kg of hydroxypropyl methyl cellulose (viscosity 15 ten thousand) are stirred for 35min under the condition of 70 r/min.
Example 6
The embodiment provides a painting construction process, and the cement-based waterproof plugging reinforcing agent obtained in the embodiment 5 is adopted, and the method comprises the following steps:
(S1) mixing the cement-based waterproof plugging reinforcing agent with clean water, stirring, and obtaining slurry after stirring. 3 parts of a reinforcing agent and 1 part of clean water are stirred to be thick paste.
(S2) when brushing, the material consumption per square meter is 5.0kg, the coating thickness is 2.8mm, and brushing is carried out for more than 2 times.
(S3) cleaning the brushing base surface during construction, and wetting and maintaining the coating exposed to the sun for 1-2 days by using clear water.
In order to show the effect of the cement-based waterproof plugging reinforcing agent, the following tests are carried out:
A3-8L water tank is made of hollow bricks or aerated concrete with high water permeability, the cement-based waterproof leaking stoppage reinforcing agent slurry is coated in the water tank, the water tank is filled with water after standing for 3 days at room temperature, and wet spots appear outside the water tank after about 30 min. The water level was maintained and the moist spots gradually disappeared after 1 month. Then the water tank is cut off, and a microscope is used for observing the section to find a plurality of crystals. The crystals can block the capillary pores of the concrete, so as to achieve the purpose of permanent water prevention and leakage stoppage.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (6)
1. The cement-based waterproof leaking stoppage reinforcing agent is characterized by comprising the following raw materials: sulphoaluminate cement, cement-based infiltration crystallization master batch, quartz sand powder, lithium chloride, calcium stearate and hydroxypropyl methyl cellulose.
2. The cement-based waterproof plugging reinforcing agent as claimed in claim 1, which is characterized by comprising the following raw materials in parts by weight: 500-600 parts of sulphoaluminate cement, 280-320 parts of a cement-based permeable crystallization master batch, 130-170 parts of quartz sand powder, 4-6 parts of lithium chloride, 1.5-2.5 parts of calcium stearate and 2-3 parts of hydroxypropyl methyl cellulose.
3. The cement-based waterproof plugging reinforcing agent as claimed in claim 2, which is characterized by comprising the following raw materials in parts by weight: 550 parts of sulphoaluminate cement, 300 parts of cement-based permeable crystallization master batch, 150 parts of quartz sand powder, 5 parts of lithium chloride, 2 parts of calcium stearate and 2.5 parts of hydroxypropyl methyl cellulose.
4. A preparation method of the cement-based waterproof plugging reinforcing agent as claimed in any one of claims 1 to 3, wherein all the raw materials are mixed and then stirred uniformly.
5. The preparation method of the cement-based waterproof plugging reinforcing agent as claimed in claim 4, wherein the stirring speed is 60-80 r/min, and the stirring time is 30-40 min.
6. A grouting construction process is characterized in that the cement-based waterproof plugging reinforcing agent of any one of claims 1 to 3 is adopted to carry out a grouting construction process or a brushing construction process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210004215.5A CN114213090A (en) | 2022-01-04 | 2022-01-04 | Cement-based waterproof leaking stoppage reinforcing agent, preparation method and construction process thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210004215.5A CN114213090A (en) | 2022-01-04 | 2022-01-04 | Cement-based waterproof leaking stoppage reinforcing agent, preparation method and construction process thereof |
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| CN114213090A true CN114213090A (en) | 2022-03-22 |
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| CN202210004215.5A Pending CN114213090A (en) | 2022-01-04 | 2022-01-04 | Cement-based waterproof leaking stoppage reinforcing agent, preparation method and construction process thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100941646B1 (en) * | 2009-08-31 | 2010-02-11 | (주)우암건설 | Concrete structure repair components |
| CN103755286A (en) * | 2014-01-24 | 2014-04-30 | 郑家玉 | Efficient cementitious capillary crystalline waterproofing coating as well as preparation method and construction method thereof |
| CN107540304A (en) * | 2017-08-17 | 2018-01-05 | 科顺防水科技股份有限公司 | A kind of composite cement base osmotic crystalline waterproof material |
| CN111848062A (en) * | 2020-07-01 | 2020-10-30 | 苏州市兴邦化学建材有限公司 | Permeable crystallization type quick-setting grouting material and preparation method thereof |
| CN112830751A (en) * | 2021-03-19 | 2021-05-25 | 四川腾防防水保温工程有限公司 | High-molecular plugging grouting material, and preparation method and construction method thereof |
-
2022
- 2022-01-04 CN CN202210004215.5A patent/CN114213090A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100941646B1 (en) * | 2009-08-31 | 2010-02-11 | (주)우암건설 | Concrete structure repair components |
| CN103755286A (en) * | 2014-01-24 | 2014-04-30 | 郑家玉 | Efficient cementitious capillary crystalline waterproofing coating as well as preparation method and construction method thereof |
| CN107540304A (en) * | 2017-08-17 | 2018-01-05 | 科顺防水科技股份有限公司 | A kind of composite cement base osmotic crystalline waterproof material |
| CN111848062A (en) * | 2020-07-01 | 2020-10-30 | 苏州市兴邦化学建材有限公司 | Permeable crystallization type quick-setting grouting material and preparation method thereof |
| CN112830751A (en) * | 2021-03-19 | 2021-05-25 | 四川腾防防水保温工程有限公司 | High-molecular plugging grouting material, and preparation method and construction method thereof |
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