CN112759352A - Phosphate cement concrete cementing material for rapid pavement repair and preparation method thereof - Google Patents
Phosphate cement concrete cementing material for rapid pavement repair and preparation method thereof Download PDFInfo
- Publication number
- CN112759352A CN112759352A CN202011582607.7A CN202011582607A CN112759352A CN 112759352 A CN112759352 A CN 112759352A CN 202011582607 A CN202011582607 A CN 202011582607A CN 112759352 A CN112759352 A CN 112759352A
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- China
- Prior art keywords
- parts
- cement concrete
- phosphate
- phosphate cement
- preparation
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Links
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 title claims abstract description 46
- 229910019142 PO4 Inorganic materials 0.000 title claims abstract description 45
- 239000010452 phosphate Substances 0.000 title claims abstract description 45
- 239000004568 cement Substances 0.000 title claims abstract description 41
- 239000000463 material Substances 0.000 title claims abstract description 29
- 238000002360 preparation method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 15
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 15
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 14
- 239000004575 stone Substances 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims abstract description 10
- 239000004576 sand Substances 0.000 claims abstract description 10
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 9
- 239000011707 mineral Substances 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 32
- 238000002156 mixing Methods 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 3
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 229920001273 Polyhydroxy acid Polymers 0.000 claims 1
- 239000011230 binding agent Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 239000011398 Portland cement Substances 0.000 description 7
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 239000002344 surface layer Substances 0.000 description 5
- 239000013078 crystal Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- TWHXWYVOWJCXSI-UHFFFAOYSA-N phosphoric acid;hydrate Chemical compound O.OP(O)(O)=O TWHXWYVOWJCXSI-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000004137 magnesium phosphate Substances 0.000 description 1
- 229960002261 magnesium phosphate Drugs 0.000 description 1
- 229910000157 magnesium phosphate Inorganic materials 0.000 description 1
- 235000010994 magnesium phosphates Nutrition 0.000 description 1
- 239000012744 reinforcing agent Substances 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
- C04B28/34—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 cold phosphate binders
-
- 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
-
- 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
- C04B2111/26—Corrosion of reinforcement resistance
-
- 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
- C04B2111/76—Use at unusual temperatures, e.g. sub-zero
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention relates to the technical field of airport pavement repairing auxiliary devices, in particular to a phosphate cement concrete cementing material for rapid pavement repairing and a preparation method thereof, which can improve the compressive strength and the flexural strength of a repaired cement concrete pavement; the feed is prepared from the following raw materials in parts by weight: 10-15 parts of phosphate, 12-19 parts of magnesium oxide, 3-6 parts of mineral admixture, 5-11 parts of water reducing agent, 35-45 parts of sand, 50-65 parts of broken stone and 4-8 parts of water.
Description
Technical Field
The invention relates to the technical field of airport pavement repair accessories, in particular to a phosphate cement concrete cementing material for rapid pavement repair and a preparation method thereof.
Background
As is known, in the process of taking off and landing an airplane, a cement concrete pavement of an airport runway is often susceptible to diseases, and the types of the diseases can be divided into: the concrete pavement repairing method comprises the following steps of (1) five types of 14 typical types such as crack broken plates, joints, vertical displacement, surface layer and pavement repairing secondary damage, so that the damaged cement concrete pavement needs to be repaired, and the conventional repairing countermeasures for the cement concrete pavement surface layer diseases comprise: 1. spreading cement concrete waterproof reinforcing agent on the surface of the pavement with the existing surface layer diseases, and delaying the diseases such as large-area peeling, exposed stone and aggregate peeling by plugging the micro cracks on the surface layer of the pavement; 2. when the road surface layer has serious damage degree and large area, the functional pavement engineering can be implemented; the cement concrete road surface patch repairing material mainly comprises two main types of general portland cement concrete and quick-hardening early-strength cement concrete; portland cement concrete is usually used as a repairing material of a cement concrete pavement, and the conventional Portland cement concrete cementing material generally has the phenomenon of poor compressive strength and breaking strength.
Disclosure of Invention
In order to solve the above technical problems, an object of the present invention is to provide a phosphate cement concrete cementing material for rapid pavement repair, which can improve the compressive strength and the flexural strength of a repaired cement concrete pavement.
The invention also aims to provide a preparation method of the phosphate cement concrete cementing material for rapid pavement repair.
The invention relates to a phosphate cement concrete cementing material for rapid pavement repair, which is prepared from the following raw materials in parts by weight: 10-15 parts of phosphate, 12-19 parts of magnesium oxide, 3-6 parts of mineral admixture, 5-11 parts of water reducing agent, 35-45 parts of sand, 50-65 parts of broken stone and 4-8 parts of water;
the preparation method of the phosphate cement concrete cementing material for rapid pavement repair comprises the following steps:
s1, heating the stirring kettle in a water bath mode
S2, sequentially adding 10-15 parts of phosphate, 12-19 parts of magnesium oxide, 3-6 parts of mineral admixture and 5-11 parts of water reducing agent into a stirring kettle for stirring and mixing, and continuously reacting for a period of time to prepare phosphate cement;
s3, slowly adding 35-45 parts of sand, 50-65 parts of broken stone and 4-8 parts of water into a stirring kettle in sequence, and continuously stirring and mixing the raw materials;
s4, preserving the heat of the stirring kettle to finish the preparation of the phosphate cement concrete cementing material for rapid pavement repair.
The invention relates to a phosphate cement concrete cementing material for rapid pavement repair and a preparation method thereof, wherein the phosphate cement concrete cementing material for rapid pavement repair is prepared from the following raw materials in parts by weight: 13-15 parts of phosphate, 12-15 parts of magnesium oxide, 3-4 parts of phosphorous slag powder, 6-8 parts of high-performance polycarboxylic acid water reducing agent, 35-40 parts of sand, 45-65 parts of crushed stone and 4-6 parts of water.
The invention relates to a phosphate cement concrete cementing material for rapid pavement repair and a preparation method thereof.
The phosphate cement concrete cementing material for rapid pavement repair and the preparation method thereof are characterized in that the water reducing agent is a high-performance polycarboxylic acid water reducing agent.
According to the phosphate cement concrete cementing material for rapid pavement repair and the preparation method thereof, the stirring speed in S2 is 0.7 r/S.
Compared with the prior art, the invention has the beneficial effects that: after being mixed, phosphate and magnesium oxide are added with water to react, phosphate hydrate is rapidly produced, a crystal structure net which takes magnesium oxide particles as a frame and phosphate crystal hydrate as a binding material is formed, the shrinkage rate of the concrete after pavement repair by portland cement is one thirtieth of that of common concrete, the concrete is basically not shrunk, the volume is stable, the interval between initial setting and final setting is short, the low-temperature setting speed is high, the compressive strength and the flexural strength are high, and the concrete has good wear resistance, steel bar corrosion resistance and freezing resistance.
Detailed Description
The following examples are given to further illustrate the embodiments of the present invention. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1:
s1, heating the stirring kettle in a water bath mode
S2, sequentially adding 15 parts of phosphate, 19 parts of magnesium oxide, 6 parts of mineral admixture and 11 parts of water reducing agent into a stirring kettle for stirring and mixing, and continuously reacting for a period of time to prepare phosphate cement;
s3, slowly adding 45 parts of sand, 65 parts of broken stone and 8 parts of water into a stirring kettle in sequence, and continuously stirring and mixing the raw materials;
s4, preserving the heat of the stirring kettle to finish the preparation of the phosphate cement concrete cementing material for rapid pavement repair.
Example 2:
s1, heating the stirring kettle in a water bath mode
S2, sequentially adding 10 parts of phosphate, 12 parts of magnesium oxide, 3 parts of mineral admixture and 5 parts of water reducing agent into a stirring kettle for stirring and mixing, and continuously reacting for a period of time to prepare phosphate cement;
s3, slowly adding 35 parts of sand, 50 parts of broken stone and 4 parts of water into a stirring kettle in sequence, and continuously stirring and mixing the raw materials;
s4, preserving the heat of the stirring kettle to finish the preparation of the phosphate cement concrete cementing material for rapid pavement repair.
Example 3:
s1, heating the stirring kettle in a water bath mode
S2, sequentially adding 13 parts of phosphate, 15 parts of magnesium oxide, 5 parts of mineral admixture and 5 parts of water reducing agent into a stirring kettle for stirring and mixing, and continuously reacting for a period of time to prepare phosphate cement;
s3, slowly adding 40 parts of sand, 60 parts of broken stone and 6 parts of water into a stirring kettle in sequence, and continuously stirring and mixing the raw materials;
s4, preserving the heat of the stirring kettle to finish the preparation of the phosphate cement concrete cementing material for rapid pavement repair.
Comparative example 1:
the phosphate cements made from S1 and S2 were replaced with portland cement.
The compressive strength and the flexural strength of the special concrete are tested by the above examples 1 to 3 and comparative example 1, and the test results are shown in the following table:
labeling: indicates the addition of an equal amount of portland cement as phosphate cement.
After being mixed with magnesium oxide, phosphate and magnesium oxide are added with water to react, phosphate hydrate is rapidly produced, a crystal structure net which takes magnesium oxide particles as a frame and phosphate crystal hydrate as a binding material is formed, the shrinkage rate of the concrete after pavement restoration by portland cement is one thirty times that of common concrete, the concrete is basically not shrunk, the volume is stable, the interval between initial setting and final setting is short, the low-temperature setting speed is high, the compressive strength and the flexural strength are high, and the concrete has good wear resistance, steel bar corrosion resistance and frost resistance.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The phosphate cement concrete cementing material for rapid pavement repair is characterized by being prepared from the following raw materials in parts by weight: 10-15 parts of phosphate, 12-19 parts of magnesium oxide, 3-6 parts of mineral admixture, 5-11 parts of water reducing agent, 35-45 parts of sand, 50-65 parts of broken stone and 4-8 parts of water;
the preparation method of the phosphate cement concrete cementing material for rapid pavement repair comprises the following steps:
s1, heating the stirring kettle in a water bath mode
S2, sequentially adding 10-15 parts of phosphate, 12-19 parts of magnesium oxide, 3-6 parts of mineral admixture and 5-11 parts of water reducing agent into a stirring kettle for stirring and mixing, and continuously reacting for a period of time to prepare phosphate cement;
s3, slowly adding 35-45 parts of sand, 50-65 parts of broken stone and 4-8 parts of water into a stirring kettle in sequence, and continuously stirring and mixing the raw materials;
s4, preserving the heat of the stirring kettle to finish the preparation of the phosphate cement concrete cementing material for rapid pavement repair.
2. The rapid pavement repair phosphate cement concrete cementing material and the preparation method thereof according to claim 1, wherein the rapid pavement repair phosphate cement concrete cementing material is prepared from the following raw materials in parts by weight: 13-15 parts of phosphate, 12-15 parts of magnesium oxide, 3-4 parts of phosphorous slag powder, 6-8 parts of high-performance polycarboxylic acid water reducing agent, 35-40 parts of sand, 45-65 parts of crushed stone and 4-6 parts of water.
3. The rapid pavement repair phosphate cement concrete cementitious material and method of making the same of claim 2, wherein the mineral admixture is phosphorous slag powder.
4. The phosphate cement concrete cementitious material for rapid pavement patching and the preparation method thereof according to claim 3, wherein the water reducing agent is a polyhydroxy acid high performance water reducing agent.
5. The phosphate cement concrete binder for rapid pavement patching and the preparation method thereof according to claim 4, wherein the stirring speed in S2 is 0.7 r/S.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011582607.7A CN112759352A (en) | 2020-12-28 | 2020-12-28 | Phosphate cement concrete cementing material for rapid pavement repair and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011582607.7A CN112759352A (en) | 2020-12-28 | 2020-12-28 | Phosphate cement concrete cementing material for rapid pavement repair and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112759352A true CN112759352A (en) | 2021-05-07 |
Family
ID=75696369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011582607.7A Pending CN112759352A (en) | 2020-12-28 | 2020-12-28 | Phosphate cement concrete cementing material for rapid pavement repair and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112759352A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150047929A (en) * | 2013-10-25 | 2015-05-06 | 주식회사 휴리스 | Ultra rapid hardening mortar composition and manufacturing method using the same |
| CN106966687A (en) * | 2017-04-07 | 2017-07-21 | 俞家欢 | One kind is without strong cohesive force phosphate cement patching material of mobility rapid hardening and preparation method thereof |
| CN107056225A (en) * | 2017-04-12 | 2017-08-18 | 武汉理工大学 | A kind of phosphate cement based patching material and preparation method thereof |
| CN108455963A (en) * | 2018-05-07 | 2018-08-28 | 苏州麦奇新型材料有限公司 | A kind of magnesium phosphate cement base pavement patching material and preparation method thereof |
| CN111056815A (en) * | 2019-11-28 | 2020-04-24 | 广州市北二环交通科技有限公司 | Slow-setting high-toughness magnesium phosphate cement road rapid repair material |
-
2020
- 2020-12-28 CN CN202011582607.7A patent/CN112759352A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150047929A (en) * | 2013-10-25 | 2015-05-06 | 주식회사 휴리스 | Ultra rapid hardening mortar composition and manufacturing method using the same |
| CN106966687A (en) * | 2017-04-07 | 2017-07-21 | 俞家欢 | One kind is without strong cohesive force phosphate cement patching material of mobility rapid hardening and preparation method thereof |
| CN107056225A (en) * | 2017-04-12 | 2017-08-18 | 武汉理工大学 | A kind of phosphate cement based patching material and preparation method thereof |
| CN108455963A (en) * | 2018-05-07 | 2018-08-28 | 苏州麦奇新型材料有限公司 | A kind of magnesium phosphate cement base pavement patching material and preparation method thereof |
| CN111056815A (en) * | 2019-11-28 | 2020-04-24 | 广州市北二环交通科技有限公司 | Slow-setting high-toughness magnesium phosphate cement road rapid repair material |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210507 |
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| RJ01 | Rejection of invention patent application after publication |