CN116715486B - Preparation method of grouting material and construction method for building water-proof and anti-seepage - Google Patents
Preparation method of grouting material and construction method for building water-proof and anti-seepage Download PDFInfo
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- CN116715486B CN116715486B CN202310715047.5A CN202310715047A CN116715486B CN 116715486 B CN116715486 B CN 116715486B CN 202310715047 A CN202310715047 A CN 202310715047A CN 116715486 B CN116715486 B CN 116715486B
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- 239000000463 material Substances 0.000 title claims abstract description 83
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- 238000010276 construction Methods 0.000 title claims description 15
- 239000004568 cement Substances 0.000 claims abstract description 112
- 239000000839 emulsion Substances 0.000 claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000003208 petroleum Substances 0.000 claims abstract description 44
- 229920005989 resin Polymers 0.000 claims abstract description 44
- 239000011347 resin Substances 0.000 claims abstract description 44
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 38
- 229920000642 polymer Polymers 0.000 claims abstract description 36
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 32
- 238000003756 stirring Methods 0.000 claims abstract description 31
- 239000000203 mixture Substances 0.000 claims abstract description 21
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 19
- 239000011398 Portland cement Substances 0.000 claims abstract description 19
- 239000011734 sodium Substances 0.000 claims abstract description 19
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 19
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 19
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000000292 calcium oxide Substances 0.000 claims abstract description 18
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011256 inorganic filler Substances 0.000 claims abstract description 14
- 229910003475 inorganic filler Inorganic materials 0.000 claims abstract description 14
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 13
- 239000011707 mineral Substances 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 12
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 48
- 239000010881 fly ash Substances 0.000 claims description 16
- 229920005646 polycarboxylate Polymers 0.000 claims description 13
- HECLRDQVFMWTQS-UHFFFAOYSA-N Dicyclopentadiene Chemical compound C1C2C3CC=CC3C1C=C2 HECLRDQVFMWTQS-UHFFFAOYSA-N 0.000 claims description 11
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 11
- 239000004816 latex Substances 0.000 claims description 10
- 229920000126 latex Polymers 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 239000002994 raw material Substances 0.000 claims description 8
- VUWCWMOCWKCZTA-UHFFFAOYSA-N 1,2-thiazol-4-one Chemical class O=C1CSN=C1 VUWCWMOCWKCZTA-UHFFFAOYSA-N 0.000 claims description 4
- 235000015278 beef Nutrition 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- MGIYRDNGCNKGJU-UHFFFAOYSA-N isothiazolinone Chemical group O=C1C=CSN1 MGIYRDNGCNKGJU-UHFFFAOYSA-N 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 claims description 2
- 239000002174 Styrene-butadiene Substances 0.000 claims description 2
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 claims description 2
- -1 acrylic ester Chemical class 0.000 claims description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 2
- 239000004327 boric acid Substances 0.000 claims description 2
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 claims description 2
- 229920005610 lignin Polymers 0.000 claims description 2
- DGVVJWXRCWCCOD-UHFFFAOYSA-N naphthalene;hydrate Chemical compound O.C1=CC=CC2=CC=CC=C21 DGVVJWXRCWCCOD-UHFFFAOYSA-N 0.000 claims description 2
- 239000011115 styrene butadiene Substances 0.000 claims description 2
- 229920003048 styrene butadiene rubber Polymers 0.000 claims description 2
- 229920001909 styrene-acrylic polymer Polymers 0.000 claims description 2
- 239000011975 tartaric acid Substances 0.000 claims description 2
- 235000002906 tartaric acid Nutrition 0.000 claims description 2
- 230000002070 germicidal effect Effects 0.000 claims 2
- 239000002002 slurry Substances 0.000 claims 2
- 238000001035 drying Methods 0.000 claims 1
- 210000001503 joint Anatomy 0.000 claims 1
- 230000015271 coagulation Effects 0.000 abstract description 5
- 238000005345 coagulation Methods 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000006703 hydration reaction Methods 0.000 description 18
- 238000012360 testing method Methods 0.000 description 18
- 239000010410 layer Substances 0.000 description 15
- 230000036571 hydration Effects 0.000 description 12
- 239000002245 particle Substances 0.000 description 12
- 230000000844 anti-bacterial effect Effects 0.000 description 11
- 239000003899 bactericide agent Substances 0.000 description 11
- 239000008367 deionised water Substances 0.000 description 11
- 229910021641 deionized water Inorganic materials 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 10
- 239000000126 substance Substances 0.000 description 10
- 238000005303 weighing Methods 0.000 description 10
- 239000002585 base Substances 0.000 description 9
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 6
- 239000000920 calcium hydroxide Substances 0.000 description 6
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 239000002344 surface layer Substances 0.000 description 5
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 238000004078 waterproofing Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 230000000979 retarding effect Effects 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000003760 tallow Substances 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical class OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 208000035143 Bacterial infection Diseases 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 description 1
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 description 1
- 208000022362 bacterial infectious disease Diseases 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 239000003139 biocide Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000007233 catalytic pyrolysis Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003663 paint preservative agent Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000003469 silicate cement Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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
- 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
-
- 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
-
- 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
- E04G23/0281—Repairing or restoring roofing or roof covering
-
- 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
- C04B2111/70—Grouts, e.g. injection mixtures for cables for prestressed concrete
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Ceramic Engineering (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention discloses a preparation method of a grouting material, which comprises a first component and a second component, wherein the first component is a cement system mixture, the second component is a modified polymer emulsion obtained by modifying a polymer emulsion by adopting petroleum resin emulsion, and the mass ratio between the first component and the second component is 1.6-2.8:1; the preparation method comprises the following steps: (1) preparing a first component: mixing Portland cement, inorganic filler, mineral admixture, water reducer and retarder uniformly, adding water, and stirring uniformly to obtain the first component; the inorganic filler consists of sodium metaaluminate, sodium carbonate and calcium oxide; (2) preparing a second component: and mixing the petroleum resin emulsion and the polymer emulsion, and uniformly stirring to obtain the second component. The grouting material prepared by the invention has good flexibility and elasticity, so that the coagulation body of the grouting material can adapt to the deformation of a structure, and has better sealing property, water shutoff property and durability.
Description
The present application is a divisional application of the invention patent application with the application date of 2020, 12 and 31, the application number of 2020116355907 and the invention name of "grouting material, preparation method and application".
Technical Field
The invention relates to the technical field of building waterproofing and grouting materials, in particular to a preparation method of a flexible high-elasticity modified cement-based grouting material and application of the prepared grouting material in building waterproofing.
Background
Many gaps exist under the balcony tiles or the roof surface layer, for example, a layer of dry sand layer of 3-5cm is arranged under the balcony tiles, a heat insulation layer is arranged under the roof surface layer, the heat insulation material is porous, once water permeates into the gaps, a leaked water source is formed, and the problems of failure of a waterproof layer, structural cracking and the like are solved, so that the water source can reach the room along a leakage channel, and the life of people is puzzled.
At present, two main methods for treating the leakage problem are available, one is to remove all the surface layers on the surface of the building to the structural layer and re-make the waterproof layer, and the method is time-consuming, labor-consuming and high in cost; another method is to inject materials with certain fluidity into the gap below the surface layer by machine pressure, the fluid materials gradually coagulate into elastic bodies after a certain time, all leakage channels are blocked, and water sources existing in the gap are extruded out, which is equivalent to remolding a waterproof layer above a structural layer, and the industry is also called a reconstruction waterproof layer construction method.
At present, grouting materials used in the reconstruction waterproof layer construction method in the market mainly comprise cement-based grouting materials and acrylic acid salt grouting materials. The traditional cement-based grouting material occupies most of the market of the grouting material due to the characteristics of low cost, wide raw materials, simple operation, convenient construction and the like; however, at the same time, the traditional cement-based grouting material belongs to a rigid material, is easy to crack and cannot adapt to the deformation of a base layer; the grouting material of the acrylate has low solid content, and is easy to shrink due to water loss in a dry environment, so that a leakage channel is formed again.
If the purpose of completing maintenance without brick disassembly or damage to a balcony or a roof after leakage occurs is to be achieved, a flexible and high-elastic modified cement-based grouting material is needed, so that a condensate of the grouting material can adapt to deformation of a structure, and better sealing performance, water shutoff performance and durability are achieved.
Disclosure of Invention
In view of the above, in order to overcome the defects of the prior art, the present invention aims to provide an improved preparation method of a grouting material, and the prepared grouting material has good water resistance, shrinkage resistance, excellent flexibility and high elastic performance.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the grouting material comprises a first component and a second component, wherein the mass ratio of the first component to the second component is 1.6:1-2.8:1; the first component is a cement system mixture and the second component includes a petroleum resin emulsion and a polymer emulsion. In some embodiments of the invention, the mass ratio between the first component and the second component is preferably 1.9:1. The cement system mixture is similar to a conventional cement-based composition.
The second component in the invention is modified polymer emulsion obtained by modifying polymer emulsion with petroleum resin emulsion. The modified polymer emulsion can compensate microcracks generated by cement gel, and fills pores in cement, so that the cement system is modified, and has good flexibility and elasticity, so that the coagulation body of the grouting material can adapt to the deformation of the structure, and has better sealing property, water shutoff property and durability.
According to some preferred embodiments of the present invention, the mass ratio of the petroleum resin emulsion and the polymer emulsion in the second component is: 1:2.5-1:3.2. In some embodiments of the invention, it is preferred that the mass ratio of petroleum resin emulsion to polymer emulsion be 1:3.
According to some preferred embodiments of the present invention, the second component comprises the following raw material components in parts by weight: 8-20 parts of petroleum resin emulsion and 25-50 parts of polymer emulsion.
According to some preferred embodiments of the invention, the petroleum resin emulsion is one of a C5 petroleum resin emulsion, a C9 petroleum resin emulsion, a C5 petroleum resin and C9 petroleum resin copolymer emulsion, or a DCPD petroleum resin emulsion; preferably a DCPD petroleum resin emulsion. Petroleum resin is a byproduct of petroleum catalytic pyrolysis, and unsaturated groups in pyrolysis raw materials are utilized to polymerize or copolymerize under the action of a catalyst at a proper temperature. The petroleum resin adopted in the invention has a molecular weight smaller than 2000, is mainly used for modifying polymer emulsion, and improves the compatibility of the polymer emulsion and a cement system. The DCPD petroleum resin emulsion contains double bonds with strong reactivity, has good compatibility with other resins or polymer emulsions, can modify the polymer emulsion, obviously improves the working performance of the polymer emulsion, improves the compatibility of the polymer emulsion and a cement system, ensures that the cement system exists stably, and avoids layering.
According to some preferred embodiments of the present invention, the polymer emulsion is one, two or a combination of a plurality of neoprene emulsion, acrylate emulsion, styrene-acrylic emulsion and styrene-butadiene emulsion; preferably neoprene latex. The neoprene latex is polymerized in emulsion, can compensate microcracks generated by cement gel, endow the cement system with elasticity, can fill pores in cement, strengthen a structure, reduce dry shrinkage and improve mechanical property and weather resistance.
According to some preferred embodiments of the present invention, the first component comprises the following raw material components in parts by weight: 35 to 55 parts of Portland cement, 0.3 to 0.6 part of inorganic filler, 0.01 to 0.05 part of retarder, 0.15 to 0.25 part of water reducer, 0.01 to 7 parts of mineral admixture and 22 to 47 parts of water.
According to some preferred embodiments of the invention, the raw materials in the first component are specifically as follows:
the Portland cement is ordinary Portland cement with the strength coefficient of about 42.5MPa, and is mainly used as a base material of the grouting plugging material to provide the grouting plugging material with the required strength.
The inorganic filler is one, two or a combination of more of sodium metaaluminate, sodium carbonate and calcium oxide. The preferred mass ratio is sodium carbonate: sodium metaaluminate: calcium oxide=1:1:0.5. The inorganic filler has the main functions of promoting the hydration reaction of cement, inhibiting the conversion of silicic acid gel in cement into precipitate, and thus has the functions of accelerating coagulation, enhancing the fluidity of cement paste and improving the strength of cement system. The cement is subjected to hydration reaction, hydration product calcium hydroxide reacts with sodium carbonate in the mineral admixture to generate calcium carbonate precipitate which is insoluble in water, and at the moment, the content of sodium ions and hydroxyl ions in the cement is obviously increased, so that the pH value of the cement is kept stable and even further improved, the pH value of the cement is properly improved, the hydration rate of the cement is accelerated, and the strength is increased; the added sodium metaaluminate can react with gypsum in cement in an alkaline medium formed by cement hydration to generate sodium sulfate, so that the gypsum loses the original retarding effect, calcium aluminate minerals are rapidly hydrated, and hydration products are separated out for crystallization, thereby accelerating the setting of cement and improving the strength of a cement system; the added calcium oxide can generate calcium hydroxide in the hydration process of cement, and can promote the effects of sodium carbonate and sodium metaaluminate in the added inorganic filler while slightly improving the pH value of a cement system. Namely, the inorganic filler is sodium metaaluminate, sodium carbonate and calcium oxide which can also play a synergistic effect.
The retarder is one of citric acid, boric acid or tartaric acid, preferably citric acid. The main function of the retarder is to adjust the gel time of the modified cement-based grouting material by controlling the mixing amount of the retarder so as to adapt to the construction requirements under different conditions. The hydroxyl group contained in the molecular structure of the citric acid can form an unstable complex with free calcium in an alkaline medium of a cement hydration product, and the concentration of calcium in a liquid phase is controlled at the initial stage of the hydration process to generate a retarding effect. Along with the progress of the hydration process, the unstable complex is automatically decomposed, so that the hydration reaction of the cement is continued, and the later hydration of the cement is not influenced. Secondly, hydroxyl, amino and carboxyl carried in the citric acid and the molecular structure are easy to combine with water molecules through hydrogen bonds, and a layer of stable solvated water film is formed on the surface of cement particles through the hydrogen bond association among the water molecules, so that direct contact among the cement particles is prevented, the heat release rate of hydration heat is reduced, the hydration reaction of cement is delayed, the setting and hardening time of a cement system is prolonged, and the gel time of the modified cement-based grouting material is adjusted.
The water reducing agent is one of a polycarboxylate water reducing agent, a naphthalene water reducing agent or a lignin water reducing agent, and preferably the polycarboxylate water reducing agent. The main function of the water reducing agent is to disperse cement particles, improve the working performance of a cement system, improve the fluidity of the cement system and reduce the shrinkage degree of the cement system. After the water reducer is added, as the molecules of the water reducer can be directionally adsorbed on the surfaces of cement particles, the surfaces of the cement particles have the same charge (usually negative charge), so that electrostatic repulsion is formed, the cement particles are mutually dispersed, a flocculation structure formed by mutual association of the cement particles due to the originally different charges on the surfaces of the cement particles is disintegrated, and part of water which is wrapped is released to participate in flowing, so that the fluidity of a cement system is effectively improved; meanwhile, as the hydrophilic group in the water reducer molecules has strong polarity, the water reducer adsorption film attached to the surfaces of the cement particles can form a layer of stable solvated water film with water molecules, and the water film has good lubricating effect, and can effectively reduce the sliding resistance among the cement particles, so that the fluidity of a cement system is further improved.
The mineral admixture is fly ash, preferably class C first-grade fly ash, and the fineness of the mineral admixture is not more than 12%. The cement can chemically react with calcium hydroxide or other alkaline earth metal hydroxides in cement to generate hydraulic cementing substances, so that the strength and durability of a cement system are improved; meanwhile, the friction force between cement particles can be reduced, so that the working performance of the cement paste is improved, and the fluidity of the cement paste is enhanced. The added fly ash can generate hydration reaction, consume a large amount of calcium hydroxide, generate silicic acid gel and stable fibrous calcium sulfoaluminate crystals, the gel has larger toughness than the crystals, the calcium sulfoaluminate crystals have better tensile property than the calcium hydroxide crystals, and hydration products are cross-connected on the surface layers of the fly ash glass beads, so that the strength of a cement system is improved.
Deionized water is adopted as the water, and the resistivity of the water is more than or equal to 10 megaohm-cm.
According to some preferred embodiments of the invention, the first component further comprises 0.25 to 0.75 parts of a biocide which is an isothiazolinone and/or an isothiazolinone derivative, preferably an isothiazolinone derivative. Isothiazolinone is a high-efficiency, low-toxicity and environment-friendly paint preservative. Because of the moisture and nutrients contained in the product feedstock, it is highly susceptible to bacterial infection, resulting in reduced viscosity, spoilage, and other deleterious physical and chemical changes in the grouting material.
The invention also provides a preparation method of the grouting material, which comprises the following steps:
(1) Preparing a first component: weighing the components according to the formula proportion, uniformly mixing silicate cement, inorganic filler, mineral admixture, water reducer and retarder, then adding water, and fully and uniformly stirring to obtain the first component. The addition proportion of retarder in the first component can be properly adjusted to adjust the gel time of the grouting material so as to meet the requirements of construction operability under different conditions.
(2) Preparing a second component: weighing the components according to the formula proportion, mixing the petroleum resin emulsion and the polymer emulsion, and uniformly stirring to obtain the second component.
The invention also provides application of the grouting material in building waterproofing. The construction of the modified cement-based grouting material for waterproof and antiseep construction of the building specifically comprises the following steps: firstly, pretreating an applied building roof base surface, removing greasy dirt or other impurities on the surface of the base surface, keeping the surface dry, then punching pins on the base surface, injecting grouting materials into the building base surface by using a double-liquid grouting machine, and keeping the surface dry and maintaining for 2 days or more.
Compared with the prior art, the invention has the following advantages: according to the preparation method of the grouting material suitable for the clear water concrete, the modified polymer emulsion of the second component is used for endowing the cement-based grouting material with the characteristics of flexibility and high elasticity, compensating microcracks generated by cement gel and filling pores in cement, so that a cement system is modified, and the cement system has good flexibility and elasticity, so that the coagulation body of the grouting material can adapt to the deformation of a structure, and has better sealing property, water shutoff property and durability.
Detailed Description
In order to better understand the technical solutions of the present invention for a person skilled in the art, the following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
The raw materials used in the following examples are shown below:
and (3) cement: portland cement (southern Cement Co., ltd., P.O 42.5)
Inorganic filler: sodium carbonate (Jiangsu Minlin chemical technology Co., ltd., analytically pure)
Sodium metaaluminate (Changzhou Wanlang chemical industry Co., ltd., analytically pure)
Calcium oxide (Jiangsu Minlin chemical technology Co., ltd., analytically pure)
Retarder: citric acid (Suzhou Tenghao chemical technology Co., ltd.)
Water reducing agent: polycarboxylic acid high-performance water reducer (Jiangsu Su Bote New Material Co., ltd., model: PCA-1)
Mineral admixture: fly ash (Changxing Huafei chemical industry Co., ltd.)
A bactericide: isothiazolinone derivatives (Jiangsu Guangdong chemical industry Co., ltd., model: GF)
Petroleum resin emulsion: DCPD Petroleum resin emulsion (Jiangsu Nanyang chemical Co., ltd.)
Polymer emulsion: neoprene latex (Jiangsu Nanyang chemical industry Co., ltd.)
Example 1
The composition of the flexible high-elastic cement-based grouting material of the embodiment is as follows:
the first component (parts by weight): 35 parts of ordinary Portland cement, 0.16 part of sodium carbonate, 0.16 part of sodium metaaluminate, 0.08 part of calcium oxide, 0.15 part of polycarboxylate water reducer, 3.5 parts of fly ash, 0.25 part of bactericide, 0.01 part of citric acid and 30 parts of deionized water.
The second component (weight portion): 9 parts of DCPD petroleum resin emulsion and 27 parts of neoprene latex.
The preparation method of the flexible high-elastic cement-based grouting material comprises the following steps:
preparing a first component: weighing the components according to the formula proportion, adding the ordinary Portland cement, the sodium carbonate, the sodium metaaluminate, the calcium oxide, the polycarboxylate water reducer, the fly ash, the bactericide and the citric acid into a stirring kettle, pre-stirring to fully and uniformly mix the components, adding deionized water into the stirring kettle, and fully and uniformly stirring to obtain the first component.
Preparing a second component: and mixing the petroleum resin emulsion and the polymer emulsion, and fully stirring to be uniform to obtain the second component.
Example 2
The composition of the flexible high-elastic cement-based grouting material of the embodiment is as follows:
the first component (parts by weight): 35 parts of ordinary Portland cement, 0.16 part of sodium carbonate, 0.16 part of sodium metaaluminate, 0.08 part of calcium oxide, 0.15 part of polycarboxylate water reducer, 3.5 parts of fly ash, 0.25 part of bactericide, 0.01 part of citric acid and 30 parts of deionized water.
The second component (weight portion): 9.5 parts of DCPD petroleum resin emulsion and 30 parts of neoprene latex.
The preparation method of the flexible high-elastic cement-based grouting material comprises the following steps:
preparing a first component: weighing the components according to the formula proportion, adding the ordinary Portland cement, the sodium carbonate, the sodium metaaluminate, the calcium oxide, the polycarboxylate water reducer, the fly ash, the bactericide and the citric acid into a stirring kettle, pre-stirring to fully and uniformly mix the components, adding deionized water into the stirring kettle, and fully and uniformly stirring to obtain the first component.
Preparing a second component: and mixing the petroleum resin emulsion and the modified polymer emulsion, and fully stirring to be uniform to obtain the second component.
Example 3
The composition of the flexible high-elastic cement-based grouting material of the embodiment is as follows:
the first component (parts by weight): 42 parts of ordinary Portland cement, 0.2 part of sodium carbonate, 0.2 part of sodium metaaluminate, 0.1 part of calcium oxide, 0.18 part of polycarboxylate water reducer, 3.8 parts of fly ash, 0.27 part of bactericide, 0.01 part of citric acid and 36 parts of deionized water.
The second component (weight portion): 12 parts of DCPD petroleum resin emulsion and 30.5 parts of neoprene latex.
The preparation method of the flexible high-elastic cement-based grouting material comprises the following steps:
preparing a first component: weighing the components according to the formula proportion, adding the ordinary Portland cement, the sodium carbonate, the sodium metaaluminate, the calcium oxide, the polycarboxylate water reducer, the fly ash, the bactericide and the citric acid into a stirring kettle, pre-stirring to fully and uniformly mix the components, adding deionized water into the stirring kettle, and fully and uniformly stirring to obtain the first component.
Preparing a second component: and mixing the petroleum resin emulsion and the modified polymer emulsion, and fully stirring to be uniform to obtain the second component.
Example 4
The composition of the flexible high-elastic cement-based grouting material of the embodiment is as follows:
the first component (parts by weight): 48 parts of ordinary Portland cement, 0.25 part of sodium carbonate, 0.25 part of sodium metaaluminate, 0.12 part of calcium oxide, 0.2 part of polycarboxylate water reducer, 4.1 parts of fly ash, 0.29 part of bactericide, 0.01 part of citric acid and 38 parts of deionized water.
The second component (weight portion): 10 parts of DCPD petroleum resin and 28 parts of neoprene latex.
The preparation method of the flexible high-elastic cement-based grouting material comprises the following steps:
preparing a first component: weighing the components according to the formula proportion, adding the ordinary Portland cement, the sodium carbonate, the sodium metaaluminate, the calcium oxide, the polycarboxylate water reducer, the fly ash, the bactericide and the citric acid into a stirring kettle, pre-stirring to fully and uniformly mix the components, adding deionized water into the stirring kettle, and fully and uniformly stirring to obtain the first component.
Preparing a second component: and mixing the petroleum resin emulsion and the modified polymer emulsion, and fully stirring to be uniform to obtain the second component.
Example 5
The composition of the flexible high-elastic cement-based grouting material of the embodiment is as follows:
the first component (parts by weight): 35 parts of ordinary Portland cement, 0.16 part of sodium carbonate, 0.16 part of sodium metaaluminate, 0.08 part of calcium oxide, 0.15 part of polycarboxylate water reducer, 3.5 parts of fly ash, 0.25 part of bactericide, 0.05 part of citric acid and 30 parts of deionized water.
And a second component: 9 parts of DCPD petroleum resin emulsion and 27 parts of neoprene latex.
The preparation method of the flexible high-elastic cement-based grouting material comprises the following steps:
preparing a first component: weighing the components according to the formula proportion, adding the ordinary Portland cement, the sodium carbonate, the sodium metaaluminate, the calcium oxide, the polycarboxylate water reducer, the fly ash, the bactericide and the citric acid into a stirring kettle, pre-stirring to fully and uniformly mix the components, adding deionized water into the stirring kettle, and fully and uniformly stirring to obtain the first component.
Preparing a second component: and mixing the petroleum resin emulsion and the modified polymer emulsion, and fully stirring to be uniform to obtain the second component.
Comparative example 1
The grouting material of the comparative example is the traditional cement-based grouting material, and the Ningde new building board inorganic plugging grouting material is adopted.
Comparative example 2
The composition and preparation method of the cement-based grouting material of this comparative example were substantially the same as in example 2, except that the second component in the cement-based grouting material of this comparative example was 26 parts by weight of DCPD petroleum resin emulsion.
Comparative example 3
The composition and preparation method of the cement-based grouting material of the present comparative example were substantially the same as in example 2, except that the second component in the cement-based grouting material of the present comparative example was neoprene latex 27 parts (parts by weight).
Example 6
When the grouting materials in the embodiments 1-5 are adopted for building waterproof and antiseep construction, firstly, the applied building roof base surface is pretreated, and the specific steps of pretreatment are as follows: removing greasy dirt or other impurities on the surface of the roof basal plane, and keeping the surface dry. Then punching holes with the depth of about 3-5cm on a building base surface, inserting a special water stop needle head for grouting, opening grouting material product packages, sub-packaging a first component and a second component of grouting materials into two clean barrels, respectively placing two suction pipes of a double-liquid grouting machine into the two barrels, butting the grouting machine Niu Youtou with the water stop needle head, starting the grouting machine to inject the grouting materials into a building base layer, closing the grouting machine, pulling out the beef tallow head after the grouting materials in the beef tallow head are fully injected into the water stop needle head, and so on, after the injected grouting materials reach initial setting time, namely, the surface is solidified, the water stop needle head is not moved, grouting holes are filled and sealed, and the grouting machine is kept dry and maintained for 2 days or more.
The specific gel time can be adjusted by adding retarder, and the construction time can be adjusted within 8-40 min. Before grouting, gel experiments can be carried out, the required gel time and the addition amount of retarder are confirmed according to the actual engineering conditions such as site conditions, temperature and the like, and then engineering grouting operation is carried out.
Testing and results
The flexible high-elastic cement-based grouting materials prepared in examples 1-5 and the grouting materials in comparative examples 1-3 are subjected to various performance tests of waterproof, plugging and reinforcing, and the performance tests are specifically as follows:
1. viscosity test
Under standard test conditions, weighing a proper amount of mixed grouting material to be tested in each example, and testing and recording according to a rotary viscometer method in GB/T10247.
2. Compressive Strength
Weighing a proper amount of mixed grouting material to be tested in each embodiment, pouring into a 70mm test mold for curing, taking out the cured grouting material, putting into a mortar press, gradually pressurizing until a test piece is broken, and recording the compressive strength.
3. Strength of consolidation
Weighing a proper amount of mixed grouting material to be tested in each embodiment, pouring 70mm into a test mold filled with sand and stone for curing, taking out the cured grouting material, placing the cured grouting material into a mortar press, gradually pressurizing until a test piece is damaged, and recording the consolidation strength.
4. Elongation at break
The test pieces to be tested of each example were tested according to GB/T16777-2008, the tensile speed was 200mm/min, until the tensile break was reached, the average value was taken and recorded.
5. Waterproof property
The test pieces to be tested of each example were tested by using a watertight instrument, a water filling valve was opened at a constant pressure of 0.2Kpa for 30min, and whether each test piece was watertight was observed and recorded.
6. Acid resistance and alkali resistance
The test pieces to be tested of each example were respectively put into 10% sodium hydroxide and 1% hydrochloric acid solution for soaking for 72 hours, taken out, and whether pulverization or cracking phenomenon exists on the surfaces of the test pieces was observed and recorded.
7. Freeze thawing resistance
The test pieces to be tested of each example were put into a freeze thawing box for 15 cycles, taken out, and whether pulverization or cracking phenomenon exists on the surfaces of the test pieces was observed and recorded.
8. Expansion ratio in water
Tested as specified in GB/T18173.3-2002 and recorded.
The test results of the above experiments are shown in table 1 below:
table 1 test data
As can be seen from the test data in Table 1, the flexible and high-elastic cement-based grouting materials prepared in examples 1-5 have various properties superior to those of comparative examples 1-3, and particularly have obviously superior flexibility and elasticity (wherein the flexibility is represented by elongation at break, and the elasticity is represented by elastic modulus), and can be well adapted to deformation conditions such as structural settlement; in addition, the waterproof and leak-stopping effects of the building structure can be effectively improved.
Compared with the prior art, the invention has the beneficial effects that:
1. the cement-based grouting material has the characteristics of flexibility and high elasticity through the modified polymer emulsion of the second component. The traditional cement-based grouting material belongs to a rigid material, is easy to crack, cannot adapt to the settlement of a base layer, and is easy to damage and fail. The modified polymer emulsion can compensate microcracks generated by cement gel, fill pores in cement, modify a cement system, and enable the cement system to have good flexibility and elasticity, so that the coagulation of the grouting material can adapt to the deformation of a structure, and has better sealing property, water shutoff property and durability.
2. The petroleum resin in the second component can modify the polymer emulsion, obviously improve the working performance of the polymer emulsion, improve the compatibility of the polymer emulsion and a cement system, improve the stability of the modified cement system and avoid layering.
3. The retarder in the cement system mixture of the first component can reduce the heat release rate of cement hydration heat, delay cement hydration reaction and prolong the setting and hardening time of a cement system, thereby adjusting the gel time of the modified cement-based grouting material to adapt to construction requirements under different working environments and different conditions.
4. The inorganic filler in the cement system mixture of the first component can control the loss of alkaline substances in the cement system, so that the pH value of the cement system is kept stable and even further improved, thereby improving the strength of the cement system.
5. The mineral admixture in the cement system mixture of the first component of the invention can react with calcium hydroxide or other alkaline earth metal oxides in the cement to form hydraulic cementing materials, thereby improving the strength and durability of the cement system.
6. The water reducer in the cement system mixture of the first component can disperse cement particles, improve the working performance of the cement system, improve the fluidity of the cement system and reduce the shrinkage degree of the cement system.
The above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the present invention and to implement the same, but are not intended to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (6)
1. The preparation method of the grouting material is characterized in that the grouting material comprises a first component and a second component, wherein the first component is a cement system mixture, the second component is a modified polymer emulsion obtained by modifying a polymer emulsion with petroleum resin emulsion, and the mass ratio of the first component to the second component is 1.6-2.8:1; the preparation method comprises the following steps:
(1) Preparing a first component: mixing Portland cement, inorganic filler, mineral admixture, water reducer and retarder uniformly, adding water, and stirring uniformly to obtain the first component; the inorganic filler consists of sodium metaaluminate, sodium carbonate and calcium oxide;
(2) Preparing a second component: mixing the petroleum resin emulsion and the polymer emulsion, and uniformly stirring to obtain the second component; the mass ratio of the petroleum resin emulsion to the polymer emulsion in the second component is 1:2.5-3.2; the molecular weight of the petroleum resin is less than 2000;
the second component comprises the following raw material components in parts by weight: 8-20 parts of petroleum resin emulsion and 25-50 parts of polymer emulsion;
the petroleum resin emulsion is one of C5 petroleum resin emulsion, C9 petroleum resin emulsion, C5 petroleum resin and C9 petroleum resin copolymer emulsion or DCPD petroleum resin emulsion; and/or the polymer emulsion is one or a combination of a plurality of neoprene latex, acrylic ester emulsion, styrene-acrylic emulsion and styrene-butadiene emulsion;
the first component comprises the following raw material components in parts by weight: 35-55 parts of Portland cement, 0.3-0.6 part of inorganic filler, 0.01-0.05 part of retarder, 0.15-0.25 part of water reducer, 0.01-7 parts of mineral admixture and 22-47 parts of water;
sodium carbonate in the inorganic filler: sodium metaaluminate: the mass ratio of the calcium oxide is 1:1:0.5.
2. The method according to claim 1, wherein the portland cement is a portland cement having a strength coefficient of 42.5 MPa; the retarder is one of citric acid, boric acid or tartaric acid; the water reducing agent is one of a polycarboxylate water reducing agent, a naphthalene water reducing agent or a lignin water reducing agent; the mineral admixture is class-C first-grade fly ash, and the fineness of the mineral admixture is not more than 12%; the resistivity of the water is greater than or equal to 10 mega ohm cm.
3. The method of claim 1, wherein the first component further comprises a germicide, wherein the germicide is isothiazolinone and/or an isothiazolinone derivative.
4. The construction method for preventing water and leakage of the building is characterized by comprising the following steps: firstly, pretreating an applied building roof basal plane, removing greasy dirt or sundries on the basal plane surface, and keeping the surface dry; then punching holes on the base surface and inserting a water stop needle, and injecting the grouting material prepared by the preparation method according to any one of claims 1-3 into the building base surface by using a double-liquid grouting machine, keeping the grouting material dry, and curing for 2 days or more.
5. The construction method according to claim 4, wherein the first component and the second component of the grouting material are respectively filled into two clean barrels, two suction pipes of the dual-liquid grouting machine are respectively placed in the two barrels, then the beef head of the grouting machine is in butt joint with the water stop needle, and the grouting machine is started to inject the grouting material into the building base.
6. The construction method according to claim 4, wherein the grouting machine is turned off after grouting, the beef head is pulled out after grouting is completed and the water stop needle is filled with the slurry, the surface of the injected slurry is solidified, the water stop needle is pulled out, grouting holes are filled, and the grouting machine is maintained for 2 days or more after drying and curing.
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| CN113831085B (en) * | 2021-10-08 | 2022-07-22 | 中铁二十局集团第三工程有限公司 | Cement-styrene-acrylic emulsion and waterborne epoxy resin grouting material |
| CN114349450A (en) * | 2021-12-08 | 2022-04-15 | 山东大学 | Double-network interpenetration high-erosion-resistance structure grouting material and preparation method and application thereof |
| CN114573252A (en) * | 2022-02-23 | 2022-06-03 | 山东大学 | Polymer modified red mud-based hybrid alkaline cementing material and preparation method thereof |
| CN114920521A (en) * | 2022-05-31 | 2022-08-19 | 中德新亚建筑材料有限公司 | Prestressed pipeline grouting material and preparation method thereof |
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| CN111621230A (en) * | 2019-11-20 | 2020-09-04 | 苏州佳固士新材料科技有限公司 | Grouting material for balcony or roof reconstruction waterproof layer construction method and preparation method and application thereof |
| CN111072366A (en) * | 2019-12-30 | 2020-04-28 | 浙江斯力柯新材料科技有限公司 | Inorganic grouting material capable of stopping open water and reinforcing structure and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
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| CN116715486A (en) | 2023-09-08 |
| CN112608107B (en) | 2023-05-02 |
| CN112608107A (en) | 2021-04-06 |
| CN116715487A (en) | 2023-09-08 |
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