WO2016155613A1 - 用于自修复混凝土的微胶囊及其制备方法和自修复混凝土及其制备方法 - Google Patents
用于自修复混凝土的微胶囊及其制备方法和自修复混凝土及其制备方法 Download PDFInfo
- Publication number
- WO2016155613A1 WO2016155613A1 PCT/CN2016/077788 CN2016077788W WO2016155613A1 WO 2016155613 A1 WO2016155613 A1 WO 2016155613A1 CN 2016077788 W CN2016077788 W CN 2016077788W WO 2016155613 A1 WO2016155613 A1 WO 2016155613A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- self
- core
- microcapsule
- microcapsules
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/38—Polysaccharides or derivatives thereof
- C04B24/383—Cellulose or derivatives thereof
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
- C04B20/1033—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
- B01J13/02—Making microcapsules or microballoons
- B01J13/04—Making microcapsules or microballoons by physical processes, e.g. drying, spraying
- B01J13/043—Drying and spraying
-
- 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
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
-
- 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
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/10—Coating or impregnating
- C04B20/1018—Coating or impregnating with organic materials
- C04B20/1029—Macromolecular compounds
- C04B20/1048—Polysaccharides, e.g. cellulose, or derivatives thereof
-
- 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
- C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators or shrinkage compensating agents
- C04B22/08—Acids or salts thereof
- C04B22/14—Acids or salts thereof containing sulfur in the anion, e.g. sulfides
- C04B22/142—Sulfates
- C04B22/148—Aluminium-sulfate
-
- 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
- C04B24/00—Use of organic materials as active ingredients for mortars, concrete or artificial stone, e.g. plasticisers
- C04B24/24—Macromolecular compounds
- C04B24/26—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C04B24/2676—Polystyrenes
-
- 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
-
- 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
- C04B2111/2038—Resistance against physical degradation
-
- 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
- C04B2111/34—Non-shrinking or non-cracking materials
Definitions
- cracks The control and repair of cracks is the most important part of improving the durability of concrete materials. At present, there are several common repair methods for cracks: organic coating repair method, grouting method, fiber wrapping repair method,
- the technical solution adopted by the present invention is: a microcapsule for self-repairing concrete, comprising a capsule core and a capsule wall, wherein the components of the capsule core include a repairing agent and a microcrystalline fiber.
- the material of the capsule wall is a polymer organic material sensitive to crack stress.
- the rice line-like core material obtained in the step 202 is poured into a roller in the spheronization device, and the core particles are rolled out;
- the coating liquid is prepared, the ethyl cellulose is 100 parts by weight, the ethanol is 150-300 parts by weight, and the toluene is 800-1000 parts by weight; the ethyl cellulose is dissolved in the ethanol and In a mixture of toluene.
- the polystyrene is 100 parts by weight and the chloroform is 900-1600 parts by weight; and the polystyrene is dissolved in the chloroform.
- the microcapsules are spherical, the microcapsules have a particle diameter of 200-500 micrometers, and the microcapsules have a wall thickness of 50-200 micrometers.
- the curing repair material is an epoxy resin or a curing agent.
- the invention provides a preparation method of self-repairing concrete, which comprises the following steps:
- the present invention provides a microcapsule for self-healing concrete, comprising a core and a capsule wall, wherein the components of the core comprise a repair agent, microcrystalline cellulose and Tween 80, the wall of the capsule
- the material is a polymer organic material that is sensitive to crack stress.
- the microcapsules for self-repairing concrete the material of the capsule wall is selected to be sensitive to crack stress, and the polymer material can be cracked when the crack is generated during the use of the concrete, and the core material is released;
- the repairing agent can react to form an expanded product in the concrete to fill the crack and realize the repairing effect on the crack; in addition, the solidifying repairing material which can fill the repairing effect of the crack can also be selected in the core forming material to realize the repairing effect on the crack.
- the microcapsule-based crack self-repairing concrete is a microcapsule which incorporates a physical triggering function sensitive to external stress in the conventional component of concrete, and forms a self-repairing system for intelligently repairing cracks inside the concrete, through a typical concrete production process,
- the microcapsules are evenly distributed in the concrete, and the microcapsule material does not break during the mixing and curing process.
- the microcapsules implanted in the concrete can be stably stored in the matrix for a long time.
- FIG. 1 is a scanning electron micrograph of a microcapsule according to an embodiment of the present invention.
- FIG. 4 is a 3D reconstruction diagram of internal microcapsules of a cement-based material sample according to an embodiment of the present invention
- 5-1 is an image of a XCT horizontal section of a microcapsule repairing a crack of a cement-based material sample provided in Example 1 of the present invention after a 0-day repair period;
- Example 5-2 is an image of a XCT horizontal section of a microcapsule repairing a crack of a cement-based material sample provided by Example 1 of the present invention after a 63-day repair period;
- 6-1 is an image of a XCT horizontal section of a microcapsule repairing a crack of a cement-based material sample according to Example 2 of the present invention after a 0-day repair period;
- 6-2 is an image of a XCT horizontal section of a microcapsule repairing a crack of a cement-based material sample according to Example 2 of the present invention after a 63-day repair period;
- 6-3 is an image of a XCT horizontal section of a microcapsule repairing a crack of a cement-based material sample according to Example 2 of the present invention after a repair period of 105 days;
- FIG. 8 is a graph showing the repair rate of microcapsules to cracks in cement-based material samples of cement-based material samples provided in Examples 1 and 2 of the present invention.
- the present invention provides a microcapsule for self-healing concrete, comprising a core and a capsule wall, wherein the components of the core comprise a repair agent, microcrystalline cellulose and Tween 80, the wall of the capsule
- the material is a polymer organic material that is sensitive to crack stress.
- the microcapsules for self-healing concrete provided by the present invention include a capsule core, which in composition comprises a restorative agent, microcrystalline cellulose, and Tween 80.
- the restorative agent is preferably a sulphoaluminate cement.
- the present invention has no particular requirement for microcrystalline cellulose, and microcrystalline cellulose which is well known to those skilled in the art can be used.
- the present invention has no special requirements for Tween 80, and Tween 80, which is well known to those skilled in the art, is employed.
- the mass ratio of the restorative agent, microcrystalline cellulose and Tween 80 is preferably 100: (90 to 100): (8 to 10), more preferably 100: 95: 9.
- the capsule core preferably further comprises a cured repair material.
- the curing repair material is preferably an epoxy resin or a curing agent, and the present invention has no special requirement for the source of the epoxy resin or the curing agent, and the epoxy resin or curing agent known to those skilled in the art can be used.
- the mass ratio of the cured restorative material, microcrystalline cellulose, and Tween 80 is preferably 100: (90 to 100): (8 to 10), more preferably 100: 95: 9.
- the particle diameter of the core is preferably from 150 to 500 ⁇ m, more preferably from 200 to 400 ⁇ m.
- the microcapsules for self-healing concrete provided by the present invention include a capsule wall whose material is a polymer organic material sensitive to crack stress.
- the polymer organic material sensitive to crack stress is preferably a polyacrylic resin, a polystyrene resin or an ethyl cellulose.
- the capsule core is preferably prepared according to the following steps:
- Extrusion and finening mixing the core material of the step (201) into an extrusion device to obtain a core material of a rice line shape;
- discharging spheronization pouring the rice line-like core material into a roller in a spheronization device to obtain a core particle;
- Drying The core particles are dried under forced air, and the drying temperature is 30-40 °C.
- the core material is preferably weighed in parts by weight, including 100 parts of the repairing agent, 90-100 parts of microcrystalline cellulose, 8-10 parts of Tween 80 and 100-120 parts of ethanol; Specifically, it is 100 parts of repairing agent, 95 parts of microcrystalline cellulose, 9 parts of Tween 80 and 110 parts of ethanol, or 100 parts of repairing agent, 95 parts of microcrystalline cellulose, 10 parts of Tween 80 and 115 parts of ethanol.
- 30% ethanol is preferably ethanol having a volume percentage concentration of 30%.
- the core material is preferably mixed, and is introduced into an extrusion device through a feeding port of the extrusion device, and is extruded and finely obtained to obtain a rice core material.
- the invention has no special requirements on the extrusion equipment used, and the capsule core extrusion equipment well known to those skilled in the art can be used, and there is no special requirement for the extrusion and extraction process parameters, and the person skilled in the art is employed. The parameters of the extrusion process are well known.
- the present invention preferably puts the core particles after rolling out of the rounding device into the drum of the drying device and performs drying under forced air; in the present invention, the drying temperature is preferably 30-40 ° C. After drying, the core is obtained.
- the invention also provides a preparation method of microcapsules for self-repairing concrete, comprising the following steps:
- preparing a coating liquid weighing 100 parts by weight of a polymer organic material sensitive to crack stress, and 900 to 1600 parts by weight of a solvent, dissolving a polymer material sensitive to crack stress in a solvent to obtain a coating liquid;
- spray coating the capsule core obtained in the step 1301 is placed in a roller of a spray coating device, and in the coating mode, the coating liquid obtained in the step 1302 is sprayed through the spray nozzle of the device to the spray nozzle.
- 1 to 2 g of talc is added every 5 to 10 minutes to obtain a coated core;
- drying the coated capsule core obtained in the step 1303 is dried under forced air conditions, naturally cooled and naturally dried to obtain microcapsules, the drying temperature is 30-40 ° C, the drying time For 10 to 20 minutes, the drying is carried out in a drum of a drying apparatus.
- the present invention preferably prepares the capsule core according to the preparation method of the capsule core according to the above technical solution, and details are not described herein again.
- the capsule core After the capsule core is obtained, it is preferred to prepare a coating liquid.
- the solvent is preferably a mixture of ethanol and toluene or trichlorotoluene.
- the weight ratio of the ethanol to toluene is preferably (150 to 300): (800 to 1000), and the present invention has no special requirements for the source of ethanol and toluene.
- Ethanol and toluene which are well known to those skilled in the art, can be used.
- the high molecular organic material sensitive to crack stress is ethyl cellulose
- the present invention preferably comprises 100 parts by weight of ethyl cellulose, 150 to 300 parts of ethanol and 800 to 1000 parts of toluene as a coating liquid by weight.
- the raw material is prepared; in the present invention, the ethyl cellulose is preferably dissolved in the mixed liquid of ethanol and toluene.
- the present invention preferably puts the capsule core into the drum of the spray coating device, and in the coating mode, the coating liquid is sprayed by the spray nozzle of the device onto the rolling capsule core, in the coating mode.
- 1 to 2 g of talc powder was added every 5 to 10 minutes to obtain a coated core.
- the present invention preferably cools the coated capsule core under forced air conditions, naturally cools and naturally dries to obtain microcapsules; in the present invention, the drying temperature is preferably 30. ⁇ 40 ° C, the drying time is preferably 10 to 20 minutes, and the drying is preferably carried out in a drum of a drying apparatus; the present invention has no special requirements for the drying apparatus, and a drying apparatus well known to those skilled in the art can be used.
- the present invention preferably analyzes the physical properties of the obtained microcapsules, and determines whether the obtained microcapsules meet the needs of the concrete self-repairing system; in the embodiment of the present invention, the photographing analysis is specifically performed by an electron microscope scanning instrument; Preferably, the obtained microcapsules are also subjected to stress performance tests to determine whether the obtained microcapsules can be broken under stress.
- the invention provides a self-repairing concrete, comprising cement, sand, water and the microcapsule prepared by the preparation method described in the above technical solution or the above technical solution, the amount of the microcapsule is 0.05 per cubic meter of concrete.
- the invention also provides a preparation method of self-repairing concrete, comprising the following steps:
- step 1502 stirring the step 1501 to weigh the obtained cement, sand and microcapsules until the dispersion is uniform to obtain a mixture;
- the mass ratio of cement to water is preferably 1:0.4.
- the obtained concrete is preferably cured to obtain a concrete curing sample; in the present invention, there is no special requirement for the curing process of the concrete, and the curing method well known to those skilled in the art may be used.
- the curing method The steps are specifically: vibrating concrete, watering the workpiece, standing, demoulding, scraping the slurry, secondary standing, demoulding and curing; in the present invention, the watering workpiece is preferably a stepwise or stepwise method.
- the time for standing is preferably 1 to 2 hours, and the time for the second standing is preferably 24 hours.
- the curing of the present invention is preferably carried out in a concrete standard curing box, and the curing time is preferably 28 days.
- the concrete standard of the present invention is There is no special requirement for the curing box, and a concrete standard curing box known to those skilled in the art can be used.
- the present invention preferably performs a preloading of 900N on the concrete curing sample to obtain a concrete curing sample with cracks inside; in the present invention, it is preferable to perform X-ray computed tomography on the concrete curing sample with internal cracks.
- XCT Scanning technology
- the conditions of the secondary curing according to the present invention are preferably standard curing conditions, specifically The relative humidity is higher than 95%, and the humidity is 21 ° C; in the embodiment of the present invention, the time of secondary curing is specifically 0 days, 21 days, 42 days, 63 days, 84 days, and 105 days.
- the invention preferably performs XCT analysis, 3D reconstruction and image processing analysis on the concrete curing samples after secondary curing, and observes the modification of the cracks of the self-repairing concrete.
- the present invention provides a microcapsule for self-healing concrete, comprising a core and a capsule wall, wherein the components of the core comprise a repair agent, microcrystalline cellulose and Tween 80, the wall of the capsule
- the material is a polymer organic material that is sensitive to crack stress.
- the microcapsules for self-repairing concrete the material of the capsule wall is selected to be sensitive to crack stress, and the polymer material can be cracked when the crack is generated during the use of the concrete, and the core material is released;
- the repairing agent can react to form an expanded product in the concrete to fill the crack and realize the repairing effect on the crack; in addition, the curing material which can repair the crack can be selected in the material for forming the capsule to realize the repairing effect on the crack.
- microcapsule preparation process used in the invention is simple in operation, easy to implement, and provides conditions for industrialized mass production.
- the microcapsule-based crack self-repairing concrete is a microcapsule which incorporates a physical triggering function sensitive to external stress in the conventional component of concrete, and forms a self-repairing system for intelligently repairing cracks inside the concrete, through a typical concrete production process,
- the microcapsules are evenly distributed in the concrete, and the microcapsule material does not break during the mixing and curing process.
- the microcapsules implanted in the concrete can be stably stored in the matrix for a long time.
- microcapsules for self-repairing concrete provided by the present invention are described below with reference to the embodiments, but they are not to be construed as limiting the scope of the present invention.
- Table 1 repair agent is the core material of aluminum sulfate cement (parts by weight)
- 30% ethanol means ethanol having a volume percentage concentration of 30%.
- the core material is weighed, and the weighed raw materials are respectively mixed, put into an extrusion equipment for extrusion and thinning, and the rice core material is extruded, and the rice linear core material is poured into the round
- the drum in the equipment is rolled out of the core particles, and the core particles are dried under the condition of forced ventilation at 30-40 ° C to obtain a capsule core.
- Table 2 solvent is the amount of coating liquid used in the mixture of ethanol and toluene
- the raw materials were weighed according to the five formulations in Table 2, and ethyl cellulose was dissolved in a mixture of ethanol and toluene to prepare a coating liquid.
- step 1) After atomizing the coating liquid, spray it onto the capsule core obtained in step 1), and add 1-2 g of talc powder every 5-10 minutes, and dry under the condition of forced ventilation at a drying temperature of 30-40 ° C. After -20 minutes, then naturally cool down and dry naturally to obtain microcapsules.
- microcapsules are rounded, having a particle size of 200-500 microns and a wall thickness of 50-100 microns.
- the prepared microcapsules are placed under the electron microscope scanning instrument for photo analysis. As shown in FIG. 1, it is observed whether the obtained microcapsules meet the needs of the self-repairing system. According to FIG. 1, the microcapsules obtained by the invention have Good physical properties, such as rough surface, uniform particle size and good molding, which makes the microcapsules better integrated with the concrete and evenly distributed.
- the prepared microcapsules are placed on a physical stress triggering device to investigate whether the microcapsules prepared by the invention can be broken under stress. As shown in FIG. 3, the microcapsules prepared by the invention can be triggered under suitable physical stress. rupture.
- the dark spheres are microcapsules, and the microcapsules are better integrated with concrete. And a uniform distribution, the light sphere in Figure 4 is a hole.
- the light colored spheres are microcapsules.
- Fig. 5-1, Fig. 5-2 and Fig. 5-3 respectively show the change of the same section of the microcapsule self-repairing concrete at 0 days, 63 days and 105 days at the repairing age.
- the cracks in the concrete cause the microcapsules to rupture and the repair agent to flow out.
- the repair agent slowly flows into the crack and reacts with the free water, producing an expansion product to fill the crack, as shown in Figures 5-2 and 5-3.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Civil Engineering (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Medicinal Preparation (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Abstract
Description
| 配方编号 | 乙基纤维素 | 乙醇 | 甲苯 |
| Ⅰ号 | 100 | 150 | 850 |
| Ⅱ号 | 100 | 200 | 800 |
| Ⅲ号 | 100 | 200 | 1000 |
| Ⅳ号 | 100 | 300 | 900 |
| Ⅴ号 | 100 | 240 | 960 |
| 配方编号 | 聚苯乙烯 | 三氯甲烷 |
| Ⅰ号 | 100 | 900 |
| Ⅱ号 | 100 | 1000 |
| Ⅲ号 | 100 | 1200 |
| Ⅳ号 | 100 | 1400 |
| Ⅴ号 | 100 | 1600 |
Claims (15)
- 一种用于自修复混凝土的微胶囊,包括囊芯和囊壁,其特征在于,所述囊芯的组分包括修复剂、微晶纤维素和吐温80,所述囊壁的材料为对裂缝应力敏感的高分子有机材料。
- 根据权利要求1所述的用于自修复混凝土的微胶囊,其特征在于,所述微胶囊按照以下制备步骤得到:301、配制包衣液:称取对裂缝应力敏感的高分子有机材料100重量份,溶剂900~1600重量份,将对裂缝应力敏感的高分子有机材料溶解于溶剂中,得到包衣液;302、喷雾包衣:将囊芯放入喷雾包衣设备的滚筒中,在包衣模式下,用泵将所述步骤301得到的包衣液通过设备的喷雾嘴喷到滚动的囊芯上,每隔5~10分钟加入1~2g滑石粉,得到包衣囊芯;303、干燥:将所述步骤302得到的包衣囊芯在强制通风的条件下进行干燥后自然降温和自然晾干,得到微胶囊,所述干燥的温度为30~40℃,所述干燥时间为10~20分钟,所述干燥在干燥设备的滚筒中进行。
- 根据权利要求3所述的用于自修复混凝土的微胶囊,其特征在于,所述溶剂为乙醇和甲苯的混合液或三氯甲苯。
- 根据权利要求4所述的用于自修复混凝土的微胶囊,其特征在于,所述乙醇和甲苯的混合液中乙醇和甲苯的重量比为(150~300):(800~1000)。
- 根据权利要求3所述的用于自修复混凝土的微胶囊,其特征在于,所述对裂缝应力敏感的高分子有机材料为聚丙烯酸树脂、聚苯乙烯或乙基纤维素。
- 根据权利要求6所述的用于自修复混凝土的微胶囊,其特征在于,所述步骤301配制包衣液时,乙基纤维素为100重量份,乙醇150-300重量份,甲苯800-1000重量份;所述的乙基纤维素溶解于所述的乙醇和甲苯的混合液中。
- 根据权利要求6所述的用于自修复混凝土的微胶囊,其特征在于,所述步骤301配制包衣液时,聚苯乙烯为100重量份,三氯甲烷900-1600重量份;所述的聚苯乙烯溶解于所述的三氯甲烷中。
- 根据权利要求1所述的用于自修复混凝土的微胶囊,其特征在于,所述微胶囊为球形,所述微胶囊的粒径为200-500微米,所述的微胶囊中囊壁的厚度为50-200微米。
- 根据权利要求1所述的用于自修复混凝土的微胶囊,其特征在于,所述的修复剂为硫铝酸盐水泥。
- 根据权利要求1所述的用于自修复混凝土的微胶囊,其特征在于,所述囊芯的组分还包括固化修复材料。
- 根据权利要求11所述的用于自修复混凝土的微胶囊,其特征在于,所述固化修复材料为环氧树脂或固化剂。
- 一种权利要求1所述的微胶囊的制备方法,其特征在于,所述微胶囊按照以下制备步骤得到:1301、制备囊芯:将修复剂、微晶纤维素、吐温80和30%乙醇混合后由加料口投入挤出设备中,挤出得到米线条状的囊芯材料,将米线条状囊芯材料倒入滚圆设备中的滚筒中,滚出囊芯微粒至微粒干燥设备的滚筒中,在强制通风的条件下进行干燥处理,所述干燥的温度为30-40℃;1302、配制包衣液:称取对裂缝应力敏感的高分子有机材料100重量份,溶剂900~1600重量份,将对裂缝应力敏感的高分子有机材料溶解于溶剂中,得到包衣液;1303、喷雾包衣:将所述步骤1301得到的囊芯放入喷雾包衣设备的滚筒中,在包衣模式下,用泵将所述步骤1302得到的包衣液通过设备的喷雾嘴喷到滚动的囊芯上,每隔5~10分钟加入1~2g滑石粉,得到包衣囊芯;1304、干燥:将所述步骤1303得到的包衣囊芯在强制通风的条件下进行干燥后自然降温和自然晾干,得到微胶囊,所述干燥的温度为30~40℃,所述干燥时间为10~20分钟,所述干燥在干燥设备的滚筒中进行。
- 一种自修复混凝土,包括水泥,砂,水和权利要求1~12任意一项所述的或权利要求13所述制备方法制备得到的微胶囊,所述微胶囊的量以每立方米混凝土含有0.05立方米~0.08立方米微胶囊的比例计。
- 一种权利要求14所述的自修复混凝土的制备方法,其特征在于,包括以下步骤:1501、称取适量的水泥,砂,水和权利要求1至12任一项所述的或权利要求13所述制备方法制备得到的微胶囊,所述微胶囊的量以每立方米混凝土含有0.05立方米~0.08立方米微胶囊的比例计;1502、搅拌所述步骤1501称量得到的水泥,砂和微胶囊,直至分散均匀,得到混合物;1503、将水倒入所述步骤1502得到的混合物中,搅拌均匀,得到自修复混凝土。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/562,111 US20180072624A1 (en) | 2015-03-31 | 2016-03-30 | Microcapsule for self-healing concrete and preparation method thereof, and self-healing concrete and preparation method thereof |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510148725.XA CN104944833A (zh) | 2015-03-31 | 2015-03-31 | 用于自修复混凝土的微胶囊和自修复混凝土的制备方法 |
| CN201510148725.X | 2015-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016155613A1 true WO2016155613A1 (zh) | 2016-10-06 |
Family
ID=54159972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2016/077788 Ceased WO2016155613A1 (zh) | 2015-03-31 | 2016-03-30 | 用于自修复混凝土的微胶囊及其制备方法和自修复混凝土及其制备方法 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US20180072624A1 (zh) |
| CN (1) | CN104944833A (zh) |
| WO (1) | WO2016155613A1 (zh) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112521057A (zh) * | 2020-11-18 | 2021-03-19 | 嘉禾县永丰混凝土有限公司 | 一种凝土双重修复剂及制备方法 |
| CN113860791A (zh) * | 2021-10-12 | 2021-12-31 | 东南大学 | 一种快速响应型混凝土自修复胶囊及其制备方法 |
| CN114873956A (zh) * | 2022-04-21 | 2022-08-09 | 河海大学 | 一种光磁耦合式自愈合混凝土及其制备方法与装置 |
| CN115432972A (zh) * | 2022-09-27 | 2022-12-06 | 无锡南方混凝土有限公司 | 一种环保抗裂预拌混凝土及其制备方法 |
| CN119977432A (zh) * | 2025-02-27 | 2025-05-13 | 天元建设集团有限公司 | 一种高透水性混凝土及其制备方法 |
| CN120518365A (zh) * | 2025-07-23 | 2025-08-22 | 四川鑫晟合泰建筑工程有限公司 | 一种水泥纤维盖板及其制备方法 |
Families Citing this family (55)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104944833A (zh) * | 2015-03-31 | 2015-09-30 | 深圳大学 | 用于自修复混凝土的微胶囊和自修复混凝土的制备方法 |
| CN105220587B (zh) * | 2015-11-09 | 2017-05-31 | 西南交通大学 | 一种可控的无砟轨道的自修复方法 |
| CN105565690B (zh) * | 2016-01-05 | 2017-07-28 | 同济大学 | 一种混凝土裂缝自溶型自修复系统及其制备方法 |
| CN105541154B (zh) * | 2016-01-05 | 2017-07-25 | 同济大学 | 一种水环境下混凝土自溶型快速自修复系统及其制备方法 |
| CN105565689B (zh) * | 2016-01-05 | 2018-07-03 | 同济大学 | 自溶增强型自修复系统和带该系统的混凝土及其制备方法 |
| CN108395269B (zh) * | 2017-02-08 | 2021-04-20 | 协兴建筑科技有限公司 | 水胶囊及其制备方法、轻质混凝土的制备方法及其结构 |
| CN106995297B (zh) * | 2017-03-17 | 2020-03-06 | 广西睿桂涵农业有限公司 | 一种自修复水泥涂料及其制备方法 |
| CN109574537B (zh) * | 2017-09-28 | 2021-08-10 | 厦门凯景实业有限公司 | 一种自防水式混凝土膨胀剂及其制备方法 |
| CN108558253A (zh) * | 2018-06-11 | 2018-09-21 | 华南理工大学 | 一种具备自我感知能力的自修复混凝土结构及其制作方法 |
| CN108516771A (zh) * | 2018-06-11 | 2018-09-11 | 华南理工大学 | 一种能优化修复环境的自修复混凝土结构及其制作方法 |
| CN108823198A (zh) * | 2018-07-20 | 2018-11-16 | 山东科技大学 | 一种可持续自修复煤矿堵漏风材料裂缝的微胶囊及其制备方法 |
| CN108751869A (zh) * | 2018-07-24 | 2018-11-06 | 华南理工大学 | 一种渗透结晶型自修复混凝土结构及其制作方法 |
| CN108996973A (zh) * | 2018-09-30 | 2018-12-14 | 中国十七冶集团有限公司 | 一种渗透结晶型防水涂料 |
| CN109180044A (zh) * | 2018-10-10 | 2019-01-11 | 华南理工大学 | 一种聚苯乙烯微胶囊自修复混凝土结构及其制作方法 |
| CN109020308B (zh) * | 2018-10-16 | 2021-05-04 | 成都冶兴润达新型建材有限公司 | 透水混凝土的生产方法 |
| CN109574527B (zh) * | 2018-12-15 | 2021-09-21 | 华南理工大学 | 一种功能性水泥自修复人造骨料及其制备方法 |
| CN110357519A (zh) * | 2019-06-12 | 2019-10-22 | 梁家杰 | 一种抗裂自修复增强混凝土的制备方法 |
| CN110510910A (zh) * | 2019-09-26 | 2019-11-29 | 交通运输部公路科学研究所 | 一种囊壁易降解的混凝土细微观裂缝微胶囊自修复材料 |
| CN110734243A (zh) * | 2019-11-01 | 2020-01-31 | 北京工业大学 | SAPs微胶囊及水泥基自修复材料 |
| CN110698108A (zh) * | 2019-12-02 | 2020-01-17 | 马鞍山十七冶工程科技有限责任公司 | 一种混凝土自修复胶囊及其制备方法和应用 |
| CN111116077B (zh) * | 2019-12-31 | 2022-02-15 | 扬州大学 | 一种微生物自修复混凝土用活性多功能载体及其制备方法 |
| CN111847946B (zh) * | 2020-06-10 | 2022-02-25 | 山东大学 | 高效无损制备可控粒径自修复微胶囊的方法及制备的微胶囊 |
| CN112127225B (zh) * | 2020-09-21 | 2022-02-11 | 山东大学 | 一种抗浮自修复锚固装置的施工方法、轻质土路基结构 |
| KR102414696B1 (ko) * | 2020-11-03 | 2022-07-04 | 한국건설기술연구원 | 초고속 이동체계용 초고성능 콘크리트 진공튜브 세그먼트의 균열 보수재 및 그 균열 보수방법 |
| CN112979244B (zh) * | 2021-03-05 | 2022-07-08 | 北京泽华路桥工程有限公司 | 一种自修复抗裂混凝土及其制备方法 |
| WO2022194351A1 (de) | 2021-03-16 | 2022-09-22 | Symrise Ag | Wirkstoffkapseln |
| CN113045283B (zh) * | 2021-03-24 | 2022-09-27 | 交通运输部公路科学研究所 | 智能触发型混凝土细微观裂缝自修复微胶囊及其制备方法 |
| CN112900651B (zh) * | 2021-04-02 | 2022-04-22 | 广东博智林机器人有限公司 | 多层复合防水卷材及其制备方法 |
| CN113149511B (zh) * | 2021-04-14 | 2022-08-26 | 中建商品混凝土有限公司 | 一种用于混凝土裂缝自修复的微生物微胶囊及其制备方法和自修复混凝土 |
| CN115477522A (zh) * | 2021-06-16 | 2022-12-16 | 广东顺德三和化工有限公司 | 一种抗开裂自修复水泥基防水材料及其制备方法 |
| CN113735485A (zh) * | 2021-09-07 | 2021-12-03 | 青岛理工大学 | 用于混凝土的环境复响应同质膨胀型自修复微胶囊及其制备方法 |
| US12297148B2 (en) | 2021-11-02 | 2025-05-13 | Saudi Arabian Oil Company | Self-repairing cement including microcapsule-in-microcapsule material and designed swellable rubber and methods for fabricating same |
| CN114014602A (zh) * | 2021-11-24 | 2022-02-08 | 国网甘肃省电力公司建设分公司 | 一种自修复水泥基材料及其制备方法和测试方法 |
| CN114195418B (zh) * | 2021-12-30 | 2022-07-15 | 山东大学 | 一种高强度自修复胶囊及其生产工艺 |
| CN114873965B (zh) * | 2022-04-27 | 2022-11-22 | 水利部交通运输部国家能源局南京水利科学研究院 | 一种改善新老混凝土结合面耐久性的接缝砂浆 |
| CN115073082B (zh) * | 2022-05-16 | 2023-10-20 | 浙江工业大学 | 用于流水环境下水泥基材料微裂缝自修复的微胶囊及其制备方法 |
| CN114920493B (zh) * | 2022-06-22 | 2023-03-28 | 水利部交通运输部国家能源局南京水利科学研究院 | 一种pH自免疫型水滑石阻锈剂及其制备方法和应用 |
| CN115073055B (zh) * | 2022-07-11 | 2023-02-17 | 中建商品混凝土有限公司 | 一种混凝土自修复微胶囊的制备方法 |
| CN115259763B (zh) * | 2022-08-13 | 2023-08-01 | 苏州市姑苏新型建材有限公司 | 一种自修复防水混凝土及其制备方法 |
| CN115353334B (zh) * | 2022-08-20 | 2023-10-03 | 温州华邦混凝土有限公司 | 一种抗氯离子渗透的环保混凝土及其制备方法 |
| CN115536329B (zh) * | 2022-09-05 | 2023-09-05 | 山东大学 | 一种自修复颗粒、自修复水泥基复合材料及其制备方法 |
| CN116005846A (zh) * | 2023-02-07 | 2023-04-25 | 深圳陆城装饰设计工程有限公司 | 一种双面空腔轻质高强度装配式墙体 |
| CN116375498B (zh) * | 2023-03-16 | 2024-06-25 | 中建商品混凝土有限公司 | 一种泡沫混凝土及其制备方法 |
| CN116675483A (zh) * | 2023-04-18 | 2023-09-01 | 山东大学 | 一种自堵水混凝土及其制备方法 |
| CN116573878B (zh) * | 2023-04-18 | 2025-03-25 | 哈尔滨工业大学 | 一种膨胀型复合胶囊及自修复水泥基材料 |
| CN117069407B (zh) * | 2023-08-17 | 2025-11-14 | 浙江广天构件集团股份有限公司 | 高防腐人造骨料及其制备的防腐抗裂水泥混凝土以及在桥梁构件中的应用 |
| CN117776621B (zh) * | 2023-12-25 | 2024-08-23 | 中煤科工开采研究院有限公司 | 一种适用于破碎煤体巷道的基于动态氢键的自修复型复合注浆材料及其制备方法和应用 |
| CN118290093A (zh) * | 2024-04-02 | 2024-07-05 | 北京工业大学 | 一种利用活性水泥颗粒微胶囊制备自修复砂浆的方法 |
| CN118359398B (zh) * | 2024-04-23 | 2024-10-29 | 中路高科交通检测检验认证有限公司 | 一种路面铺装材料及其制备方法 |
| CN120040106B (zh) * | 2025-03-28 | 2026-02-27 | 高速铁路建造技术国家工程研究中心 | 一种生物基微胶囊及其制备方法和应用 |
| CN120349145B (zh) * | 2025-06-24 | 2025-08-26 | 湖南现代环境科技股份有限公司 | 一种利用尾矿材料制成的声屏障及其制备方法 |
| CN120349149B (zh) * | 2025-06-24 | 2025-08-22 | 上海宝生新型建材有限公司 | 一种高强度混凝土及其制备方法 |
| CN121021959A (zh) * | 2025-08-25 | 2025-11-28 | 深圳市大宜新材料科技有限公司 | 一种耐低温抗应力开裂的聚乙烯改性材料及其制备工艺 |
| CN120698750B (zh) * | 2025-08-29 | 2025-11-18 | 浙江益森科技股份有限公司 | 一种耐候型陶瓷砖粘结砂浆及其制备方法 |
| CN121342448A (zh) * | 2025-12-16 | 2026-01-16 | 陕西天石实业有限责任公司 | 一种高流态固化土及其制备方法 |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005207182A (ja) * | 2004-01-26 | 2005-08-04 | Hirozo Mihashi | コンクリート補修剤の容器体およびその製造方法 |
| CN101289298A (zh) * | 2008-05-20 | 2008-10-22 | 深圳大学 | 使用脲醛树酯类高分子微胶囊的自修复混凝土及其制造方法 |
| CN102517587A (zh) * | 2011-11-25 | 2012-06-27 | 深圳大学 | 一种乙基纤维素类亚硝酸钙缓蚀剂及其制备方法 |
| CN102992673A (zh) * | 2012-12-11 | 2013-03-27 | 同济大学 | 一种地下结构混凝土化学微胶囊抗氯盐腐蚀系统 |
| CN103496874A (zh) * | 2013-09-16 | 2014-01-08 | 深圳大学 | 一种具有化学触发功能的化学自修复混凝土及其制备方法 |
| CN103601416A (zh) * | 2013-11-01 | 2014-02-26 | 深圳大学 | 一种混凝土化学自修复微胶囊及其制备方法 |
| CN104944833A (zh) * | 2015-03-31 | 2015-09-30 | 深圳大学 | 用于自修复混凝土的微胶囊和自修复混凝土的制备方法 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011163587A1 (en) * | 2010-06-25 | 2011-12-29 | Board Of Governors For Higher Education,State Of Rhode Island And Providence Plantations | Self-mending composites incorporating encapsulated mending agents |
| US9145336B2 (en) * | 2011-11-14 | 2015-09-29 | Empire Technology Development Llc | Self-repairing composites responsive in the presence of an aqueous medium |
| CN103301789B (zh) * | 2013-06-07 | 2016-05-25 | 深圳大学 | 一种以酚醛树脂为壁材用于自修复材料的微胶囊的制备方法 |
| US9598313B2 (en) * | 2014-05-29 | 2017-03-21 | Nano And Advanced Materials Institute Limited | Self-healing material and preparation process thereof |
-
2015
- 2015-03-31 CN CN201510148725.XA patent/CN104944833A/zh active Pending
-
2016
- 2016-03-30 US US15/562,111 patent/US20180072624A1/en not_active Abandoned
- 2016-03-30 WO PCT/CN2016/077788 patent/WO2016155613A1/zh not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005207182A (ja) * | 2004-01-26 | 2005-08-04 | Hirozo Mihashi | コンクリート補修剤の容器体およびその製造方法 |
| CN101289298A (zh) * | 2008-05-20 | 2008-10-22 | 深圳大学 | 使用脲醛树酯类高分子微胶囊的自修复混凝土及其制造方法 |
| CN102517587A (zh) * | 2011-11-25 | 2012-06-27 | 深圳大学 | 一种乙基纤维素类亚硝酸钙缓蚀剂及其制备方法 |
| CN102992673A (zh) * | 2012-12-11 | 2013-03-27 | 同济大学 | 一种地下结构混凝土化学微胶囊抗氯盐腐蚀系统 |
| CN103496874A (zh) * | 2013-09-16 | 2014-01-08 | 深圳大学 | 一种具有化学触发功能的化学自修复混凝土及其制备方法 |
| CN103601416A (zh) * | 2013-11-01 | 2014-02-26 | 深圳大学 | 一种混凝土化学自修复微胶囊及其制备方法 |
| CN104944833A (zh) * | 2015-03-31 | 2015-09-30 | 深圳大学 | 用于自修复混凝土的微胶囊和自修复混凝土的制备方法 |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112521057A (zh) * | 2020-11-18 | 2021-03-19 | 嘉禾县永丰混凝土有限公司 | 一种凝土双重修复剂及制备方法 |
| CN113860791A (zh) * | 2021-10-12 | 2021-12-31 | 东南大学 | 一种快速响应型混凝土自修复胶囊及其制备方法 |
| CN113860791B (zh) * | 2021-10-12 | 2023-02-28 | 东南大学 | 一种快速响应型混凝土自修复胶囊及其制备方法 |
| CN114873956A (zh) * | 2022-04-21 | 2022-08-09 | 河海大学 | 一种光磁耦合式自愈合混凝土及其制备方法与装置 |
| CN115432972A (zh) * | 2022-09-27 | 2022-12-06 | 无锡南方混凝土有限公司 | 一种环保抗裂预拌混凝土及其制备方法 |
| CN115432972B (zh) * | 2022-09-27 | 2023-08-29 | 无锡南方混凝土有限公司 | 一种环保抗裂预拌混凝土及其制备方法 |
| CN119977432A (zh) * | 2025-02-27 | 2025-05-13 | 天元建设集团有限公司 | 一种高透水性混凝土及其制备方法 |
| CN120518365A (zh) * | 2025-07-23 | 2025-08-22 | 四川鑫晟合泰建筑工程有限公司 | 一种水泥纤维盖板及其制备方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104944833A (zh) | 2015-09-30 |
| US20180072624A1 (en) | 2018-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2016155613A1 (zh) | 用于自修复混凝土的微胶囊及其制备方法和自修复混凝土及其制备方法 | |
| CN103496874B (zh) | 一种具有化学触发功能的化学自修复混凝土及其制备方法 | |
| Kawashima et al. | Early-age autogenous and drying shrinkage behavior of cellulose fiber-reinforced cementitious materials | |
| Yang et al. | Early-state water migration characteristics of superabsorbent polymers in cement pastes | |
| CN108191282B (zh) | 一种用于水泥混凝土裂缝自修复聚合物乳液微胶囊及其制备方法 | |
| Fang et al. | Visualized tracing of crack self-healing features in cement/microcapsule system with X-ray microcomputed tomography | |
| CN114933441B (zh) | 用于混凝土的环境复响应同质膨胀型自修复微胶囊及其制备方法 | |
| CN103601416B (zh) | 一种混凝土化学自修复微胶囊及其制备方法 | |
| CN101591523B (zh) | 梯度电磁波吸收材料及其制备方法 | |
| CN102175524A (zh) | 一种用于测试水泥基材料耐久性的加载装置及其测试方法 | |
| CN113563001A (zh) | 一种利用铁尾矿细砂制备再生骨料的方法 | |
| Yuan et al. | Study on the effect of mineral admixture on the water stability of UHPC under long-term immersion | |
| CN109926407A (zh) | 一种非回收型化学清蜡球及其制备方法和应用 | |
| CN110372279B (zh) | 一种核壳结构陶粒作为混凝土粗骨料的施工方法 | |
| Zhang et al. | Preparation and characterization of damage indication and self‐healing microcapsules for surface micro‐cracks in mortar coating | |
| Li et al. | Microstructure tailoring of internal curing agents: modified cement particles/superabsorbent polymers composites balancing strength and shrinkage mitigation | |
| CN106830791A (zh) | 一种无砂混凝土表面积配合比计算方法 | |
| Ren et al. | Synthesis of cement shell microcapsules via W/O Pickering emulsions | |
| Duan et al. | 3D printing-driven dynamic migration of lightweight microspheres in the printable mortars: Experiment and modelling | |
| CN111268937B (zh) | 具有物理触发功能的混凝土自修复微胶囊及其制备方法 | |
| CN102785441A (zh) | 一种光致变色复合薄膜的制备方法 | |
| CN111233366B (zh) | 一种耐腐蚀内置微胶囊的自修复钢筋混凝土构件的制备 | |
| CN120192136A (zh) | 一种低收缩混杂纤维混凝土及使用方法 | |
| CN112098583A (zh) | 一种碱活性骨料快速鉴定方法 | |
| CN106378414A (zh) | 一种流动性佳的铸造用涂料及其制备方法、使用方法 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16771368 Country of ref document: EP Kind code of ref document: A1 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 15562111 Country of ref document: US |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 16771368 Country of ref document: EP Kind code of ref document: A1 |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 16771368 Country of ref document: EP Kind code of ref document: A1 |




