CN111285631A - Interfacial agent, preparation method thereof and application thereof in fabricated building structure - Google Patents
Interfacial agent, preparation method thereof and application thereof in fabricated building structure Download PDFInfo
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- CN111285631A CN111285631A CN201911145232.5A CN201911145232A CN111285631A CN 111285631 A CN111285631 A CN 111285631A CN 201911145232 A CN201911145232 A CN 201911145232A CN 111285631 A CN111285631 A CN 111285631A
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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
- 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
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/00637—Uses not provided for elsewhere in C04B2111/00 as glue or binder for uniting building or structural 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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- 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
Abstract
The invention provides an interfacial agent, a preparation method thereof and application thereof in an assembled building structure. The interface agent adopts an ultrafine composition, and improves the low-temperature construction performance and the bonding strength of the interface agent. The composition of the interfacial agent comprises a component A and a component B, wherein the component A comprises the following components: ordinary portland cement, white portland cement, a low-temperature reinforcing agent, a dispersing agent, fine aggregate, mineral powder and encrypted silica fume; the component B comprises the following components: emulsion, cellulose ether, a coagulation regulator, a defoaming agent and water; the interface agent has the excellent characteristics of high bonding strength, long hardening time, low temperature resistance and the like. The interface agent is applied to the fabricated building structure, and has remarkable economic and social benefits for improving the construction efficiency and the engineering quality.
Description
Technical Field
The invention relates to an interfacial agent, a preparation method thereof and application thereof in an assembled building structure.
Background
In the construction of assembly type building components, relate to a large amount of superimposed sheet, the balcony, the air conditioner board, the stair, the prefabricated beam, the new and old concrete bonding problem of components such as prefabricated post, mostly adopt modes such as stamp, grooving in the mill with prefabricated component at present to increase the roughness, nevertheless because in the prefabricated production process, the oily release agent is all smeared to the mould for the product is still relatively more smooth after the drawing of patterns, and current interfacial agent permeability is poor, when follow-up cast in situ new concrete, the easy hollowing that appears, take off the scheduling problem, the quality of construction has been reduced.
Meanwhile, in the assembling construction process of the assembled member, the waiting time of the next procedure (new concrete pouring or grouting) after the interface agent is coated is long, and construction is generally carried out after 2-3 days, so that the hardening time of the interface agent is required to be long, and the bonding effect of new and old concrete is ensured.
In addition, the assembled structure has the characteristic of four-season continuous construction, and has higher requirement on the low-temperature resistance of the interface agent.
In conclusion, a special interfacial agent is needed in the construction of the fabricated member, which has high adhesion, long hardening time, low temperature sensitivity and convenient construction. Although there are many interface agents on the market at present, the above requirements are difficult to meet.
CN201810181771 discloses a special interface agent for an assembled building and a preparation method thereof, but only the bonding strength is considered, the strength is still low, and performance requirements of long hardening time, low temperature resistance and the like required by the assembled construction are not considered.
CN201510148697 discloses a concrete interface agent, a manufacturing method and a using method thereof, which is a concrete interface agent with strong binding power, excellent waterproof performance, good crack resistance and applicable to oil pollution base surfaces, and the interface agent is mainly applicable to interface treatment of common new and old concrete and cannot meet the winter construction requirements of assembled members.
Therefore, the special interface agent for the fabricated building structure is developed, and has remarkable economic and social benefits for improving the construction efficiency and the engineering quality.
Disclosure of Invention
The invention provides an interface agent, a preparation method thereof and application thereof in an assembled building structure, aiming at solving the problems of high bonding strength, long hardening time, low temperature resistance and other performance requirements of the interface agent in the construction of new and old concrete of an assembled member.
The invention provides an application of an ultrafine composition, which can improve the low-temperature construction performance and the bonding strength of an interface agent by applying the ultrafine composition and the interface agent.
The superfine composition comprises the following substances in parts by mass:
10-30 parts of fine aggregate,
5-10 parts of mineral powder,
5-10 parts of encrypted silica fume,
the fine aggregate is quartz sand of 40-70 meshes;
the mineral powder is superfine mineral powder, and the specific surface area of the mineral powder is 1400-2000 m2/kg；
The bulk density of the encrypted silica fume is 500-700 kg/m3。
The interface agent applying the superfine composition has the characteristics of high bonding strength, long hardening time, excellent low-temperature resistance and the like.
The composition of the interfacial agent comprises a component A and a component B,
the component A comprises the following components in parts by weight:
the component B comprises the following components in parts by weight:
the ordinary portland cement is P.O 42.5.5 type cement or higher;
the white silicate is 42.5 or higher type cement;
the low-temperature reinforcing agent is a mixture of sodium silicate and calcium nitrate in a mass ratio of 1: 1-3;
the dispersing agent is a polycarboxylic acid early strength type powder water reducing agent.
The emulsion is one of vinyl acetate-ethylene copolymer emulsion and styrene-acrylic emulsion.
The cellulose ether is hydroxypropyl cellulose ether with the molecular weight of 5-10 ten thousand.
The retarder is hydroxyethylidene diphosphonic acid, aminotrimethylene phosphonic acid and 2-phosphonobutane-1, 2, 4-tricarboxylic acid organic phosphate retarder.
The defoaming agent is one of siloxane or silicon ether co-cluster.
The preparation method of the interface agent comprises the following steps:
(1) weighing ordinary portland cement, white portland cement, fine aggregate, mineral powder, encrypted silica fume, a low-temperature reinforcing agent and a dispersing agent according to parts by weight, pouring the weighed components into a stirrer, stirring for 3-5 minutes without any requirement on the pouring sequence of the materials, and uniformly mixing to obtain a component A;
(2) and weighing the emulsion, the cellulose ether, the coagulation regulator, the defoaming agent and the water according to the weight parts, and uniformly mixing to obtain the component B.
The interfacial agent is applied to the fabricated building structure and plays a role of a bonding agent.
The application method of the interface agent comprises the following steps: and (3) mixing the component A and the component B according to the mass ratio of 1 (0.30-0.40), and stirring into a slurry state, thus constructing.
The special interface agent for the assembled member, which is developed from the aspects of optimizing rubber material composition, optimizing coagulation regulating component, low-temperature enhancing component, thinning powder aperture and the like, has high bonding strength, long operable time and excellent low-temperature resistance. The interface bonding performance of new and old concrete can be effectively improved, the operation time is long, and the quality of the connection construction of the winter members is not influenced.
Specifically, the present invention has the following outstanding advantages over the prior art:
the interface agent has high bonding strength, and can effectively improve the interface bonding performance of new and old concrete. The common Portland cement and the white Portland cement are compounded, the white Portland cement with large mixing amount can effectively increase the cohesiveness of slurry, the bonding strength of the product is greatly improved, the bonding strength of the product can exceed 2.5MPa, and the bonding performance of new and old concrete interfaces is obviously improved.
The interface agent has long operable time and is more suitable for the connection construction of the assembled components. In a white silicate system, 5-10 ten thousand of hydroxypropyl cellulose ether composite hydroxy ethylidene diphosphonic acid coagulation regulator with molecular weight is adopted, the construction time of slurry can be obviously prolonged, the operable time of the interface agent can reach more than 10 hours, the setting time can reach more than 24 hours, the method is particularly suitable for the construction process of assembled members, and the construction quality of new and old concrete interfaces can be effectively improved.
The interface agent has excellent low-temperature resistance, and does not influence the construction connection quality of the winter member. White portland cement, ultrafine particles, fine aggregate and the like are adopted under proper matching combination, so that the pore diameter of the interface treatment material is refined, the mixing water freezing point is reduced, and the hydration of the glue material at low temperature is promoted; meanwhile, the low-temperature reinforcing agent compounded by sodium silicate and calcium nitrate in a specific proportion has a remarkable effect of improving the early strength of the material with large amount of white portland cement at low temperature.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
Example 1
An interface agent for an assembly type building structure comprises a component A and a component B in parts by weight as follows:
the component A comprises the following components in parts by weight:
the component B comprises the following components in parts by weight:
wherein the common Portland cement is P.O 42.5.5 type cement; the white silicate is 42.5 type cement; the fine aggregate is 40-mesh quartz sand; the mineral powder is superfine mineral powder, and the specific surface area of the mineral powder is 1400m 2/kg; the bulk density of the silica fume is 500kg/m 3; the low-temperature reinforcing agent is a mixture of sodium silicate and calcium nitrate in a mass ratio of 1: 1; the dispersing agent is a polycarboxylic acid early strength type powder water reducing agent; the emulsion is vinyl acetate-ethylene copolymer emulsion; the cellulose ether is hydroxypropyl cellulose ether with 5 ten thousand molecular weight; the retarder is hydroxy ethylidene diphosphonic acid retarder of east chemical limited of Zhongping county, Shandong province; the defoaming agent is a silicone ether copolymerization defoaming agent of model PXP-1 of Jiangsu Subo new material company Limited.
Example 2
An interface agent for an assembly type building structure comprises a component A and a component B in parts by weight as follows:
the component A comprises the following components in parts by weight:
the component B comprises the following components in parts by weight:
wherein the common Portland cement is P.O 42.5.5 type cement; the white silicate is 42.5 type cement; the fine aggregate is 40-mesh quartz sand; the mineral powder is superfine mineral powder, and the specific surface area of the mineral powder is 1400m 2/kg; the bulk density of the silica fume is 500kg/m 3; the low-temperature reinforcing agent is a mixture of sodium silicate and calcium nitrate in a mass ratio of 1: 2; the dispersing agent is a polycarboxylic acid early strength type powder water reducing agent; the emulsion is vinyl acetate-ethylene copolymer emulsion; the cellulose ether is hydroxypropyl cellulose ether with the molecular weight of 8 ten thousand; the retarder is hydroxy ethylidene diphosphonic acid retarder of east chemical limited of Zhongping county, Shandong province; the defoaming agent is a silicone ether copolymerization defoaming agent of model PXP-1 of Jiangsu Subo new material company Limited.
Example 3
An interface agent for an assembly type building structure comprises a component A and a component B in parts by weight as follows:
the component A comprises the following components in parts by weight:
the component B comprises the following components in parts by weight:
wherein the common Portland cement is P.O 42.5.5 type cement; the white silicate is 42.5 type cement; the fine aggregate is 40-mesh quartz sand; the mineral powder is superfine mineral powder, and the specific surface area of the mineral powder is 1400m 2/kg; the bulk density of the silica fume is 500kg/m 3; the low-temperature reinforcing agent is a mixture of sodium silicate and calcium nitrate in a mass ratio of 1: 1; the dispersing agent is a polycarboxylic acid early strength type powder water reducing agent; the emulsion is vinyl acetate-ethylene copolymer emulsion; the cellulose ether is hydroxypropyl cellulose ether with the molecular weight of 8 ten thousand; the retarder is hydroxy ethylidene diphosphonic acid retarder of east chemical limited of Zhongping county, Shandong province; the defoaming agent is a silicone ether copolymerization defoaming agent of model PXP-1 of Jiangsu Subo new material company Limited.
Example 4
An interface agent for an assembly type building structure comprises a component A and a component B in parts by weight as follows:
the component A comprises the following components in parts by weight:
the component B comprises the following components in parts by weight:
wherein the common Portland cement is P.O 42.5.5 type cement; the white silicate is 42.5 type cement; the fine aggregate is 40-mesh quartz sand; the mineral powder is superfine mineral powder, and the specific surface area of the mineral powder is 1400m 2/kg; the bulk density of the silica fume is 500kg/m 3; the low-temperature reinforcing agent is a mixture of sodium silicate and calcium nitrate in a mass ratio of 1: 1; the dispersing agent is a polycarboxylic acid early strength type powder water reducing agent; the emulsion is vinyl acetate-ethylene copolymer emulsion; the cellulose ether is hydroxypropyl cellulose ether with the molecular weight of 10 ten thousand; the retarder is hydroxy ethylidene diphosphonic acid retarder of east chemical limited of Zhongping county, Shandong province; the defoaming agent is an organosilicone defoaming agent of model PXP-3 of Jiangsu Subo new material company Limited.
Example 5
An interface agent for an assembly type building structure comprises a component A and a component B in parts by weight as follows:
the component A comprises the following components in parts by weight:
the component B comprises the following components in parts by weight:
wherein the common Portland cement is P.O 42.5.5 type cement; the white silicate is 52.5 type cement; the fine aggregate is 40-mesh quartz sand; the mineral powder is superfine mineral powder, and the specific surface area of the mineral powder is 1400m 2/kg; the bulk density of the silica fume was 700kg/m 3; the low-temperature reinforcing agent is a mixture of sodium silicate and calcium nitrate in a mass ratio of 1: 3; the dispersing agent is a polycarboxylic acid early strength type powder water reducing agent; the emulsion is vinyl acetate-ethylene copolymer emulsion; the cellulose ether is hydroxypropyl cellulose ether with the molecular weight of 10 ten thousand; the retarder is hydroxy ethylidene diphosphonic acid retarder of east chemical limited of Zhongping county, Shandong province; the defoaming agent is a silicone ether copolymerization defoaming agent of model PXP-1 of Jiangsu Subo new material company Limited.
Comparative example 1
An interface agent for an assembly type building structure comprises a component A and a component B in parts by weight as follows:
the component A comprises the following components in parts by weight:
the component B comprises the following components in parts by weight:
wherein the common Portland cement is P.O 42.5.5 type cement; the fine aggregate is 40-mesh quartz sand; the mineral powder is superfine mineral powder, and the specific surface area of the mineral powder is 1400m 2/kg; the bulk density of the silica fume is 500kg/m 3; the low-temperature reinforcing agent is a mixture of sodium silicate and calcium nitrate in a mass ratio of 1: 1; the dispersing agent is a polycarboxylic acid early strength type powder water reducing agent; the emulsion is vinyl acetate-ethylene copolymer emulsion; the cellulose ether is hydroxypropyl cellulose ether with the molecular weight of 8 ten thousand; the coagulation regulator is a hydroxyethylidene diphosphonic acid coagulation regulator; the defoaming agent is a silicon ether copolymerization defoaming agent.
Comparative example 2
An interface agent for an assembly type building structure comprises a component A and a component B in parts by weight as follows:
the component A comprises the following components in parts by weight:
the component B comprises the following components in parts by weight:
wherein the common Portland cement is P.O 42.5.5 type cement; the fine aggregate is 40-mesh quartz sand; the mineral powder is superfine mineral powder, and the specific surface area of the mineral powder is 1400m 2/kg; the bulk density of the silica fume is 500kg/m 3; the low-temperature reinforcing agent is a mixture of sodium silicate and calcium nitrate in a mass ratio of 1: 1; the dispersing agent is a polycarboxylic acid early strength type powder water reducing agent; the emulsion is vinyl acetate-ethylene copolymer emulsion; the cellulose ether is hydroxypropyl cellulose ether with the molecular weight of 8 ten thousand; the coagulation regulator is a hydroxyethylidene diphosphonic acid coagulation regulator; the defoaming agent is a silicon ether copolymerization defoaming agent.
Comparative example 3
An interface agent for an assembly type building structure comprises a component A and a component B in parts by weight as follows:
the component A comprises the following components in parts by weight:
the component B comprises the following components in parts by weight:
wherein the common Portland cement is P.O 42.5.5 type cement; the fine aggregate is 40-mesh quartz sand; the mineral powder is superfine mineral powder, and the specific surface area of the mineral powder is 1400m 2/kg; the bulk density of the silica fume is 500kg/m 3; the low-temperature reinforcing agent is a mixture of sodium silicate and calcium nitrate in a mass ratio of 1: 1; the dispersing agent is a polycarboxylic acid early strength type powder water reducing agent; the emulsion is vinyl acetate-ethylene copolymer emulsion; the cellulose ether is hydroxypropyl cellulose ether with the molecular weight of 8 ten thousand; the coagulation regulator is a hydroxyethylidene diphosphonic acid coagulation regulator; the defoaming agent is a silicon ether copolymerization defoaming agent.
Comparative example 4
The performance of the existing interface agent is selected as a comparative example:
the component A comprises the following components in parts by weight:
50 parts of cement, namely cement, wherein the cement is prepared from the following raw materials,
45 parts of quartz sand, namely 45 parts of quartz sand,
3 parts of rubber powder, namely 3 parts of rubber powder,
2 parts of cellulose ether, namely 2 parts of,
1 part of thixotropic agent;
the component B comprises the following components in parts by weight:
wherein the cement is P.O 42.5.5 type cement; the fine aggregate is 100-mesh quartz sand; the rubber powder is vinyl acetate and ethylene copolymerized rubber powder; the cellulose ether is hydroxypropyl cellulose ether; the thixotropic agent is swelling; the defoaming agent is a silicon ether copolymerization defoaming agent; the emulsion is vinyl acetate-ethylene copolymer emulsion. When in use, the liquid material A is poured into a barrel, the powder is slowly added according to the weight ratio of 3:10 of the liquid material A to the powder B while stirring, the mixture is stirred to be uniform paste, and is kept stand for 3-5 minutes and then stirred for use.
Performing a working performance and mechanical performance comparison test by using the adhesive interface agents obtained in the embodiments 1-5 and the comparative examples 1-3, and testing the flow performance according to GB/T2419-; the setting time test method is tested according to JGJ 70-2009 basic performance test method for building mortar; the compressive strength is tested according to GB/T17671-1999 Cement mortar Strength test; the bonding strength test method is tested according to JC/T907-2018 concrete interface treating agent.
TABLE 1 Performance test results for fabricated building Structure interface Agents
The data in table 1 show that: the developed special interface agent for the assembled member has high bonding strength, long operable time and excellent low-temperature resistance, does not influence the connection construction of the member in winter, and can effectively improve the interface bonding performance of new and old concrete of the assembled member.
Claims (10)
1. The application of the superfine composition is characterized in that the superfine composition is applied to an interface agent, so that the low-temperature construction performance and the bonding strength of the interface agent can be improved;
the superfine composition comprises the following substances in parts by mass:
10-30 parts of fine aggregate,
5-10 parts of mineral powder,
5-10 parts of encrypted silica fume,
the fine aggregate is quartz sand of 40-70 meshes;
the mineral powder is superfine mineral powder, and the specific surface area of the mineral powder is 1400-2000 m2/kg；
The bulk density of the encrypted silica fume is 500-700 kg/m3。
2. An interfacial agent obtained by the use of claim 1, wherein said interfacial agent has a composition comprising an A component and a B component,
the component A comprises the following components in parts by weight:
10-40 parts of ordinary Portland cement,
40-70 parts of white Portland cement,
2-8 parts of a low-temperature reinforcing agent,
0.1-1 part of a dispersant;
10-30 parts of fine aggregate,
5-10 parts of mineral powder,
5-10 parts of encrypted silica fume,
the component B comprises the following components in parts by weight:
20-50 parts of an emulsion,
1-5 parts of cellulose ether,
5-10 parts of a coagulation regulator,
0.5 to 1 part of defoaming agent,
50-70 parts of water;
the ordinary portland cement is P.O 42.5.5 type cement or higher;
the white silicate is 42.5 or higher type cement;
the low-temperature reinforcing agent is a mixture of sodium silicate and calcium nitrate in a mass ratio of 1: 1-3.
3. The interfacial agent of claim 2, wherein said dispersing agent is a polycarboxylic acid early strength powder water reducing agent.
4. The interface agent according to claim 2, wherein the emulsion is one of a vinyl acetate-ethylene copolymer emulsion and a styrene-acrylic emulsion.
5. The interfacial agent according to claim 2, wherein said cellulose ether is hydroxypropyl cellulose ether having a molecular weight of 5 to 10 ten thousand.
6. The interfacial agent of claim 2, wherein the set control agent is hydroxyethylidene diphosphonic acid, aminotrimethylene phosphonic acid, 2-phosphonobutane-1, 2, 4-tricarboxylic acid organophosphate set control agent.
7. The interfacial agent according to claim 2, wherein said antifoaming agent is one of a silyl ether co-cluster or an organosiloxane.
8. The method for preparing the interfacial agent according to claim 2, comprising the steps of:
(1) weighing ordinary portland cement, white portland cement, fine aggregate, mineral powder, encrypted silica fume, a low-temperature reinforcing agent and a dispersing agent according to parts by weight, pouring the weighed components into a stirrer, stirring for 3-5 minutes without any requirement on the pouring sequence of the materials, and uniformly mixing to obtain a component A;
(2) and weighing the emulsion, the cellulose ether, the coagulation regulator, the defoaming agent and the water according to the weight parts, and uniformly mixing to obtain the component B.
9. The use of the interfacial agent of claim 2, wherein said agent is used as a binder in fabricated building structures.
10. The use of claim 9, wherein the method of applying the interface agent for a fabricated building structure comprises the steps of: and (3) mixing the component A and the component B according to the mass ratio of 1 (0.30-0.40), and stirring into a slurry state, thus constructing.
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| CN113122151A (en) * | 2021-04-08 | 2021-07-16 | 东南大学 | Permeation type 3D printing cement-based material interface reinforcing agent and application thereof |
| CN113277810A (en) * | 2021-05-27 | 2021-08-20 | 惠州市鸿晔环保科技有限公司 | Bi-component interface reinforced mortar for ceramic insulation board and preparation method and device thereof |
| CN113929399A (en) * | 2021-11-11 | 2022-01-14 | 科之杰新材料集团福建有限公司 | Interface mortar and application thereof |
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| CN113122151A (en) * | 2021-04-08 | 2021-07-16 | 东南大学 | Permeation type 3D printing cement-based material interface reinforcing agent and application thereof |
| CN113277810A (en) * | 2021-05-27 | 2021-08-20 | 惠州市鸿晔环保科技有限公司 | Bi-component interface reinforced mortar for ceramic insulation board and preparation method and device thereof |
| CN113929399A (en) * | 2021-11-11 | 2022-01-14 | 科之杰新材料集团福建有限公司 | Interface mortar and application thereof |
| CN115700230A (en) * | 2022-10-26 | 2023-02-07 | 中交路桥建设有限公司 | Interface agent for enhancing interface bonding performance of new and old concrete and construction method thereof |
| CN115650656A (en) * | 2022-11-11 | 2023-01-31 | 上海城建市政工程（集团）有限公司 | Working time adjustable ultra-high performance concrete |
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