CN111592307A - High-strength reinforced repair mortar - Google Patents
High-strength reinforced repair mortar Download PDFInfo
- Publication number
- CN111592307A CN111592307A CN202010422558.4A CN202010422558A CN111592307A CN 111592307 A CN111592307 A CN 111592307A CN 202010422558 A CN202010422558 A CN 202010422558A CN 111592307 A CN111592307 A CN 111592307A
- Authority
- CN
- China
- Prior art keywords
- parts
- repair mortar
- strength reinforced
- strength
- reinforced repair
- 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.)
- Pending
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Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
- C04B28/065—Calcium aluminosulfate cements, e.g. cements hydrating into ettringite
-
- 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
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/72—Repairing or restoring existing buildings or building materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
- C04B2201/52—High compression strength concretes, i.e. with a compression strength higher than about 55 N/mm2, e.g. reactive powder concrete [RPC]
Abstract
The invention discloses high-strength reinforced repair mortar, which is formed by combining a material A and a material B, wherein the weight ratio of the material A to the material B is 7: 3; the material A comprises the following raw material components in percentage by weight: 20-22 parts of special cement, 35-38 parts of ordinary cement, 10-12 parts of mineral blend, 0.5-1 part of anti-crack fiber, 3-6 parts of bone meal and 2-5 parts of anhydrite; the material B comprises the following raw material components in percentage by weight: 9-10 parts of a superplasticizer and 19-21 parts of a polymer emulsion; the high-strength reinforcing repair mortar prepared by the invention is simple and convenient to operate, has good cohesiveness and strong binding force, does not sag when trowelled, and can be widely applied to the repair of road buildings and concrete members.
Description
Technical Field
The invention belongs to the field of building engineering materials, and particularly relates to high-strength reinforced repair mortar.
Background
The conditions of honeycomb surfaces, cavities and the like often appear due to quality problems in the construction and use of bridges, roads and hydraulic buildings, so that the repair is needed, common concrete is adopted for repair in common repair, but the bonding degree of the common concrete is low, so that the bonding surface is not firm, the collapse is easy to occur, and the process is complicated.
Disclosure of Invention
In order to overcome the defects of the prior art and realize the requirements, the invention provides the high-strength reinforced repair mortar which is simple and convenient to operate and high in adhesion degree.
In order to realize the purpose, the invention adopts the technical scheme that: the high-strength reinforced repair mortar is formed by combining a material A and a material B:
the weight ratio of the material A to the material B is 7: 3;
the material A comprises the following raw material components in percentage by weight: 20-22 parts of special cement, 35-38 parts of ordinary cement, 10-12 parts of mineral blend, 0.5-1 part of anti-crack fiber, 3-6 parts of bone meal and 2-5 parts of anhydrite;
the material B comprises the following raw material components in percentage by weight: 9-10 parts of a superplasticizer and 19-21 parts of a polymer emulsion.
Preferably, the special cement is sulphoaluminate self-stress cement.
Preferably, the mineral blend is a composite formed by combining coal ash powder, slag powder, silicon powder and metakaolin, and the weight ratio of the coal ash powder, the slag powder, the silicon powder and the metakaolin is 4:3:2: 1.
Preferably, the particle size of the coal ash powder is less than or equal to 35 microns, and the specific surface area is 250-350 square meters per gram.
Preferably, the particle size of the slag powder is less than or equal to 40 microns, and the specific surface area is more than or equal to 400 square meters per gram.
Preferably, the superplasticizer is formed by combining a water reducing agent, a retarder, an air entraining agent, a stabilizer and an antifreezing agent, and the weight ratio of the water reducing agent to the retarder to the air entraining agent to the stabilizer to the antifreezing agent is 1.2:1:1:0.9: 0.9.
Preferably, the polymer emulsion is one of styrene-butadiene latex, epoxy resin latex, acrylic emulsion, styrene-acrylic latex or polyvinyl cerotic acid latex, and is preferably styrene-butadiene latex.
In order to achieve the above purpose, another technical scheme adopted by the invention is as follows: a use method of high-strength reinforced repair mortar comprises the following steps: adding water into a stirring machine, adding the material A while stirring, continuously stirring for 3 minutes, adding the material B, continuously stirring for 5 minutes, and standing for 5 minutes to be used stably.
Preferably, the ratio of water: the weight ratio of the material A is 4: 10.
preferably, the construction temperature of the high-strength reinforced repair mortar is 5-35 ℃, and the construction time is within 1 h.
Preferably, the material A is packaged by a sealed paper valve bag, and the material B is bagged or barreled.
The high-strength reinforcing repair mortar prepared by the invention is simple and convenient to operate, has good cohesiveness and strong binding force, does not sag when trowelled, and can be widely applied to the repair of road buildings and concrete members.
Detailed Description
Example (b): the high-strength reinforced repair mortar is formed by combining a material A and a material B:
the weight ratio of the material A to the material B is 7: 3;
the material A comprises the following raw material components in percentage by weight: 20 parts of special cement, 35 parts of ordinary cement, 10 parts of mineral blend, 0.5 part of anti-crack fiber, 3 parts of bone meal and 2 parts of anhydrite;
the material B comprises the following raw materials, by weight, 2.4 parts of a water reducing agent, 2 parts of a retarder, 2 parts of an air entraining agent, 1.8 parts of a stabilizer, 1.8 parts of an antifreezing agent and 20 parts of styrene-butadiene latex.
When in use: adding water into a stirring machine, adding the material A while stirring, and continuing stirring for 3 minutes, wherein the weight ratio of water: the weight ratio of the material A is 4: and 10, adding the material B, continuing stirring for 5 minutes, standing for 5 minutes until the properties are stable, cleaning the surface of the base material of the building, keeping the water-containing state of the saturated surface, uniformly troweling the stirred high-strength reinforced repair mortar on the surface of the base material to be repaired, wherein the construction temperature of the high-strength reinforced repair mortar is 5-35 ℃, and the construction time is within 1 hour. It is noteworthy that the initially set high-strength reinforcing repair mortar is not re-watered and can no longer be stirred.
The following table shows the results of testing the high-strength reinforced repair mortar:
although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (11)
1. The high-strength reinforced repair mortar is characterized by being formed by combining a material A and a material B:
the weight ratio of the material A to the material B is 7: 3;
the material A comprises the following raw material components in percentage by weight: 20-22 parts of special cement, 35-38 parts of ordinary cement, 10-12 parts of mineral blend, 0.5-1 part of anti-crack fiber, 3-6 parts of bone meal and 2-5 parts of anhydrite;
the material B comprises the following raw material components in percentage by weight: 9-10 parts of a superplasticizer and 19-21 parts of a polymer emulsion.
2. High-strength reinforced repair mortar according to claim 1, wherein the special cement is preferably a sulphoaluminate type self-stressing cement.
3. The high-strength reinforced repair mortar according to claim 1, wherein the mineral blend is a composite of fly ash powder, slag powder, silicon powder and metakaolin, and the weight ratio of fly ash powder, slag powder, silicon powder and metakaolin is 4:3:2: 1.
4. The high-strength reinforcing and repairing mortar according to claim 1 or 3, wherein the particle size of the coal ash powder is not more than 35 μm, and the specific surface area is 250-350 square meters per gram.
5. The high-strength reinforcing and repairing mortar according to claim 1 or 3, wherein the particle size of the slag powder is not more than 40 μm, and the specific surface area is not less than 400 square meters per gram.
6. The high-strength reinforced repair mortar of claim 1, wherein the superplasticizer is composed of a water reducing agent, a retarder, an air entraining agent, a stabilizer and an antifreeze agent, and the weight ratio of the water reducing agent, the retarder, the air entraining agent, the stabilizer and the antifreeze agent is 1.2:1:1:0.9: 0.9.
7. The high-strength reinforced repair mortar according to claim 1, wherein the polymer emulsion is one of styrene-butadiene latex, epoxy resin latex, acrylic emulsion, styrene-acrylic latex or polyvinyl cerotic latex, preferably styrene-butadiene latex.
8. The high-strength reinforced repair mortar of claim 1, wherein a use method of the high-strength reinforced repair mortar comprises the following steps: adding water into a stirring machine, adding the material A while stirring, continuously stirring for 3 minutes, adding the material B, continuously stirring for 5 minutes, and standing for 5 minutes to be used stably.
9. The high-strength reinforcement repair mortar of claim 1 or 8, wherein the ratio of water: the weight ratio of the material A is 4: 10.
10. the high-strength reinforced repair mortar according to claim 1 or 8, wherein the suitable construction temperature of the high-strength reinforced repair mortar is 5-35 ℃, and the construction time is within 1 h.
11. The high-strength reinforced repair mortar of claim 1 or 8, wherein the material A is packaged by a sealed paper valve bag, and the material B is packaged by a bag or a barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010422558.4A CN111592307A (en) | 2020-05-19 | 2020-05-19 | High-strength reinforced repair mortar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010422558.4A CN111592307A (en) | 2020-05-19 | 2020-05-19 | High-strength reinforced repair mortar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111592307A true CN111592307A (en) | 2020-08-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010422558.4A Pending CN111592307A (en) | 2020-05-19 | 2020-05-19 | High-strength reinforced repair mortar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111592307A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180880A (en) * | 2022-04-27 | 2022-10-14 | 厦门百正防腐工程有限公司 | Repairing and reinforcing material applied to concrete building surface in tidal range area |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580369A (en) * | 2009-06-19 | 2009-11-18 | 清华大学 | Fiber reinforced high-strength mortar used for concrete structure repair |
| CN103038188A (en) * | 2010-04-01 | 2013-04-10 | 赢创德固赛有限公司 | Curable mixture |
| CN105384415A (en) * | 2015-11-04 | 2016-03-09 | 永州市中大特种水泥有限责任公司 | Inorganic pavement repair material and preparation method thereof |
| CN105523745A (en) * | 2016-01-08 | 2016-04-27 | 甘肃省交通规划勘察设计院有限责任公司 | Bridge expansion joint fast reparation material |
| CN110105028A (en) * | 2019-04-24 | 2019-08-09 | 武汉永信美绿建新技术有限公司 | One-component subzero temperature early-strength cement base mending mortar |
-
2020
- 2020-05-19 CN CN202010422558.4A patent/CN111592307A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101580369A (en) * | 2009-06-19 | 2009-11-18 | 清华大学 | Fiber reinforced high-strength mortar used for concrete structure repair |
| CN103038188A (en) * | 2010-04-01 | 2013-04-10 | 赢创德固赛有限公司 | Curable mixture |
| CN105384415A (en) * | 2015-11-04 | 2016-03-09 | 永州市中大特种水泥有限责任公司 | Inorganic pavement repair material and preparation method thereof |
| CN105523745A (en) * | 2016-01-08 | 2016-04-27 | 甘肃省交通规划勘察设计院有限责任公司 | Bridge expansion joint fast reparation material |
| CN110105028A (en) * | 2019-04-24 | 2019-08-09 | 武汉永信美绿建新技术有限公司 | One-component subzero temperature early-strength cement base mending mortar |
Non-Patent Citations (4)
| Title |
|---|
| 李凯琦: "《风化型高岭土深加工技术》", 30 June 2017, 中国建材工业出版社 * |
| 林克辉: "新拌混凝土的工作性能", 《新型建筑材料及应用》 * |
| 林育土: "矿物掺合料的复合效应及对混凝土性能的影响", 《化工技术与开发》 * |
| 王箴: "《化学辞典》", 31 August 1969, 燃料化学工业出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180880A (en) * | 2022-04-27 | 2022-10-14 | 厦门百正防腐工程有限公司 | Repairing and reinforcing material applied to concrete building surface in tidal range area |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200828 |