CN107382179A - A kind of road high stability concrete - Google Patents
A kind of road high stability concrete Download PDFInfo
- Publication number
- CN107382179A CN107382179A CN201710436990.7A CN201710436990A CN107382179A CN 107382179 A CN107382179 A CN 107382179A CN 201710436990 A CN201710436990 A CN 201710436990A CN 107382179 A CN107382179 A CN 107382179A
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- CN
- China
- Prior art keywords
- concrete
- dosage
- water
- stone
- cement
- 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
-
- 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
-
- 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
-
- 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
- C04B2111/343—Crack resistant 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
Abstract
The present invention relates to building material field, and in particular to a kind of road high stability concrete, concrete are formed by wrapping up FRP tendons after cement, stone, metakaolin, water, water reducer, carbon fiber mixed-forming；Its each component is using component：Calculated with 1000kg cement, stone dosage is in 2400~3300kg, and metakaolin dosage is in 250~400kg, and water consumption is in 340~450kg, and water reducer dosage is in 10~15kg, and carbon fiber dosage is in 40~60kg.FRP tendons are buried along concrete long edge direction, bury a FRP tendons every 10~50cm in the width direction.The compression strength of the concrete of the present invention is 30.2~61.4MPa；Cleavage strength is 5.10~7.02MPa.
Description
Technical field
The present invention relates to building material field, and in particular to concrete.
Background technology
Cash road intensity, durability are constantly being lifted, but several in the road of the frequent dealing of oversize vehicle, road surface breakage
Rate greatly increases, once crack occurs in road concrete, is easily formed and collapses and then expand road surface breakage.Carbon fiber has carbon materials concurrently
Expect two big feature of strong stretching resistance and fiber softening machinability, be a kind of new material of excellent in mechanical performance.Carbon fiber stretches
Intensity is about 2 to arrive 7GPa, and stretch modulus is about 200 to arrive 700GPa.Density is about 1.5 to 2.0 grams per cubic centimeter, and this is removed and original
Silk structure has the temperature for outside the Pass, depending mainly on charing process.Typically pass through 3000 DEG C of graphitization processings of high temperature, density is reachable
2.0 grams every cube li.Along with its very light in weight, its proportion is also lighter than aluminium, and less than the 1/4 of steel, specific strength is iron
20 times, the tensile property that Carbon fibe will lift concrete is mixed in concrete.FRP tendons are that have multiply continuous fiber to pass through base
After material carries out gluing, mould extruding and drawing shaping through speciality.FRP tendons self-strength is high, light weight, while acid and alkali-resistance
Property it is strong, parcel with concrete in after, the stability of concrete itself will be greatly promoted, reduce because crack and caused by road surface become
Shape, collapse, strengthen the durability on road surface, reduce maintenance frequency.
The content of the invention
The present invention road surface rapid crack propagation and then collapses problem to solve road surface caused by heavy vehicle frequently travels,
Provide a kind of road high stability concrete.
Concrete described in the invention is by after cement, stone, metakaolin, water, water reducer, carbon fiber mixed-forming
Parcel FRP tendons are formed.
The relative usage of wherein each component is：Calculated with 1000kg cement, stone dosage is in 2400~3300kg, higher ridge
Native dosage in 250~400kg, water consumption in 340~450kg, water reducer dosage in 10~15kg, carbon fiber dosage 40~
60kg.FRP tendons are buried along concrete long edge direction, bury a FRP tendons every 10~50cm in the width direction.
In the present invention, the FRP tendons can directly reach from producer, but in order to which using effect considers, FRP tendons selection glass
Glass fibre reinforced plastics, its diameter of section is in 5~30mm；
In the present invention, the cement can be any portland cement on the market, to lift concrete strength, therefore select mark
Number be 52.5 portland cement；
In the present invention, stone can be cobblestone, crushed stone, for control concrete mortar mobility and stickiness, therefore select by
The rubble that limestone crushing forms；
In the present invention, metakaolin can be enough directly from producer, to improve concrete mixing, choose particle diameter 0.2~
0.4mm metakaolin；
In the present invention, the water reducer can be naphthalene series high-efficiency water-reducing agent, Ppolynuclear aromatic salt water reducer or water-soluble tree
Fat Sulfonates water reducer, in order to improve buck efficiency, it is preferred that from polycarboxylic type high performance water reducer；
In the present invention, the carbon fiber can directly reach from producer, in order to improve concrete performance, it is preferred that choose carbon
Fibre length is 2~10mm.
The release sequence of selected material is not distinctly claimed in the present invention, to give full play to the effect after material mix
With, and strengthen the cleavage strength performance after concrete hardening, it is preferred that stone, cement, metakaolin, carbon fiber are filled
Divide mixing, be in addition sufficiently mixed water and water reducer, most water is mixed with solid material at last, is spread in concrete mortar
If FRP tendons are buried and relevant position in concrete after to site of road.
The present invention is on the basis of cement, stone, metakaolin, water and water reducer by adding carbon fiber and embedded FRP
Muscle, so as to enhance the stability of concrete, wherein carbon fiber and FRP tendons is the raw material being easy to get.
Heretofore described stability is embodied by compression strength parameter and cleavage strength parameter, pressure resistance
Spend parameter and the more high then shock resistance of cleavage strength parameter is more excellent.The compression strength of the concrete of the present invention for 30.2~
61.4MPa；Cleavage strength is 5.10~7.02MPa.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Embodiment
Technical scheme is described in further detail below.It should be appreciated that tool described herein
Body embodiment is merely to illustrate and explain the present invention, and is not intended to limit the invention.
Embodiment 1
At 25 DEG C, by marked as the small wild water in field mud 1000kg in 52.5 south of the River, lime stone 2400kg is crushed, particle diameter is 0.2mm's
Metakaolin 400kg and the carbon fiber 40kg that length is 2mm are mixed and are sufficiently stirred 15min, and water 340kg and polyocarboxy acid type is high
Effect water reducer 15kg is sufficiently stirred 3 minutes, is then mixed and stirred for solid material and liquid charging stock 15 minutes, will be starched after stirring
Body is molded, and a diameter of 5mm FRP tendons are buried in slurry.Testing its compression strength in maintenance 3d, 14d and 28d is：
25.1MPa, 34.5MPa and 54.1MPa.Testing its cleavage strength in maintenance 3d, 14d and 28d is：3.3MPa, 4.0MPa and
5.5MPa。
Embodiment 2
At 25 DEG C, by marked as the small wild water in field mud 1000kg in 52.5 south of the River, lime stone 3300kg is crushed, particle diameter is 0.4mm's
Metakaolin 250kg and the carbon fiber 60kg that length is 10mm are mixed and are sufficiently stirred 15min, by water 450kg and polyocarboxy acid type
High efficiency water reducing agent 10kg is sufficiently stirred 3 minutes, is then mixed and stirred for solid material and liquid charging stock 15 minutes, after stirring
Slurry is molded, and a diameter of 30mm FRP tendons are buried in slurry.Testing its compression strength in maintenance 3d, 14d and 28d is：
20.8MPa, 23.2MPa and 33.3MPa.Testing its cleavage strength in maintenance 3d, 14d and 28d is：4.2MPa, 5.4MPa and
7.0MPa。
Embodiment 3
At 25 DEG C, by marked as the small wild water in field mud 1000kg in 52.5 south of the River, lime stone 2850kg is crushed, particle diameter is 0.3mm's
Metakaolin 300kg and the carbon fiber 55kg that length is 7mm are mixed and are sufficiently stirred 15min, and water 425kg and polyocarboxy acid type is high
Effect water reducer 13kg is sufficiently stirred 3 minutes, is then mixed and stirred for solid material and liquid charging stock 15 minutes, will be starched after stirring
Body is molded, and a diameter of 15mm FRP tendons are buried in slurry.Testing its compression strength in maintenance 3d, 14d and 28d is：
22.4MPa, 28.7MPa and 40.3MPa.Testing its cleavage strength in maintenance 3d, 14d and 28d is：3.6MPa, 4.4MPa and
6.1MPa
The preferred embodiment of the present invention described in detail above, still, the present invention are not limited to the tool in above-mentioned embodiment
Body details, in the range of the technology design of the present invention, a variety of simple variants can be carried out to technical scheme, these letters
Monotropic type belongs to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, in not lance
In the case of shield, can be combined by any suitable means, in order to avoid unnecessary repetition, the present invention to it is various can
The combination of energy no longer separately illustrates.
In addition, various embodiments of the present invention can be combined randomly, as long as it is without prejudice to originally
The thought of invention, it should equally be considered as content disclosed in this invention.
Claims (8)
- A kind of 1. road high stability concrete, it is characterised in that described concrete be by cement, stone, metakaolin, FRP tendons are wrapped up after water, water reducer, carbon fiber mixed-forming to be formed；Its each component is using component：Calculated with 1000kg cement, stone dosage is in 2400~3300kg, metakaolin dosage In 250~400kg, water consumption is in 340~450kg, and water reducer dosage is in 10~15kg, and carbon fiber dosage is in 40~60kg；FRP Muscle is buried along concrete long edge direction, buries a FRP tendons every 10~50cm in the width direction.
- 2. concrete according to claim 1, it is characterised in that described FRP tendons are fiberglass reinforced plastics, its section Diameter is in 5~30mm.
- 3. concrete according to claim 1, it is characterised in that the cement is using the silicate cement marked as PII 52.5 Mud.
- 4. concrete according to claim 1, it is characterised in that the stone is broken lime stone.
- 5. concrete according to claim 1, it is characterised in that the metakaolin particle diameter is in 0.2-0.4mm.
- 6. concrete according to claim 1, it is characterised in that the water reducer uses polycarboxylic type high performance water reducer.
- 7. concrete according to claim 1, it is characterised in that the carbon fiber length is 2-10mm.
- 8. concrete according to claim 1, it is characterised in that concrete splitting intensity is in 5.10~7.02MPa, pressure resistance Degree is in 30.2~61.4MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710436990.7A CN107382179A (en) | 2017-06-12 | 2017-06-12 | A kind of road high stability concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710436990.7A CN107382179A (en) | 2017-06-12 | 2017-06-12 | A kind of road high stability concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107382179A true CN107382179A (en) | 2017-11-24 |
Family
ID=60331743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710436990.7A Pending CN107382179A (en) | 2017-06-12 | 2017-06-12 | A kind of road high stability concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107382179A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285388A (en) * | 2007-04-09 | 2008-10-15 | 深圳市海川实业股份有限公司 | FRP wire cage employed in subway concrete excavation engineering |
| CN101328753A (en) * | 2008-07-24 | 2008-12-24 | 同济大学 | Fiber reinforcement composite material - concrete combination beam |
| CN201952977U (en) * | 2011-01-25 | 2011-08-31 | 广西工学院 | Prestressed fiber reinforce plastic (FRP) rebar high-strength concrete board band |
| CN104743984A (en) * | 2015-03-26 | 2015-07-01 | 东南大学 | High-performance frost-resistant concrete prepared from metakaolin |
| CN105201143A (en) * | 2015-10-16 | 2015-12-30 | 沈阳建筑大学 | Carbon fiber thin-wall steel tube concrete composite column with internal FRP sectional material and method |
-
2017
- 2017-06-12 CN CN201710436990.7A patent/CN107382179A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101285388A (en) * | 2007-04-09 | 2008-10-15 | 深圳市海川实业股份有限公司 | FRP wire cage employed in subway concrete excavation engineering |
| CN101328753A (en) * | 2008-07-24 | 2008-12-24 | 同济大学 | Fiber reinforcement composite material - concrete combination beam |
| CN201952977U (en) * | 2011-01-25 | 2011-08-31 | 广西工学院 | Prestressed fiber reinforce plastic (FRP) rebar high-strength concrete board band |
| CN104743984A (en) * | 2015-03-26 | 2015-07-01 | 东南大学 | High-performance frost-resistant concrete prepared from metakaolin |
| CN105201143A (en) * | 2015-10-16 | 2015-12-30 | 沈阳建筑大学 | Carbon fiber thin-wall steel tube concrete composite column with internal FRP sectional material and method |
Non-Patent Citations (2)
| Title |
|---|
| 河海大学《水利大词典》编辑修订委员会编: "《水利大辞典》", 31 October 2015 * |
| 郑晓燕等: "《新编土木工程概论》", 30 June 2012 * |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20171124 |