CN107057190A - A kind of sleeve pipe for isolating concrete protective reserved steel bar - Google Patents
A kind of sleeve pipe for isolating concrete protective reserved steel bar Download PDFInfo
- Publication number
- CN107057190A CN107057190A CN201710257847.1A CN201710257847A CN107057190A CN 107057190 A CN107057190 A CN 107057190A CN 201710257847 A CN201710257847 A CN 201710257847A CN 107057190 A CN107057190 A CN 107057190A
- Authority
- CN
- China
- Prior art keywords
- sleeve pipe
- parts
- steel bar
- reserved steel
- concrete protective
- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/18—Applications used for pipes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/062—HDPE
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention discloses a kind of sleeve pipe for isolating concrete protective reserved steel bar.The sleeve pipe raw material is made up of by mass parts following raw material：90 ~ 110 parts of PP；8 ~ 15 parts of PE；5 ~ 10 parts of reinforcing fiber；4 ~ 6 parts of abrasion resistance modifier；Compound 8 ~ 12 parts of anti-impact modifier；0.5 ~ 1 part of antioxidant；0.3 ~ 0.5 part of light stabilizer；3 ~ 6 parts of compatilizer；20 ~ 30 parts of compounded mix.A kind of preparation method for the sleeve pipe for isolating concrete protective reserved steel bar is also disclosed that, its application in reserved steel bar protection is also disclosed.The present invention sleeve pipe hardness is higher, good impact resistance, ageing-resistant performance are good, it is adaptable to isolate concrete protective reserved steel bar；Sleeve pipe keeps apart reserved, embedded bar and concrete, is easy to follow-up digging out and connecting；Sleeve pipe plays cushioning effect between reinforcing bar and concrete, can replace artificial chisel concrete using big gun machine, reduce labor intensity；After sleeve pipe using the present invention, it can avoid repeatedly bending reserved, embedded bar, effectively prevent reinforcing bar from fractureing.
Description
Technical field
The present invention relates to a kind of sleeve pipe for isolating concrete protective reserved steel bar.
Background technology
At present in construction, when running into reserved, embedded bar, be all will reserved, embedded bar together with remaining structure reinforcing bars
Casting concrete, does not do any insulation blocking measure, causes to need to spend substantial amounts of manpower again during subsequent construction
Reserved, embedded bar is dug out to come, reserved, embedded bar bending is frequently resulted in or even fractures.
The shortcoming of prior art mainly has：1st, reserve, embedded bar is wrapped up by concrete, digs out difficulty big；2nd, concrete
During cutting, because reinforcing bar hinders, workman often wants bending reinforcing steel bar, has dug afterwards straightening reinforcing bar again, and this process easily will
Reinforcing bar fractures.At present, the construction field protected in reserved steel bar, needs a kind of higher hardness of searching badly, good impact resistance, ageing-resistant
The good protection sleeve pipe with combination property easy to use.
The content of the invention
It is an object of the invention to provide a kind of sleeve pipe for isolating concrete protective reserved steel bar.
The technical solution used in the present invention is：
A kind of sleeve pipe for isolating concrete protective reserved steel bar, described sleeve pipe raw material is made up of by mass parts following raw material：
90~110 parts of PP；8~15 parts of PE；5~10 parts of reinforcing fiber；4~6 parts of abrasion resistance modifier；Compound anti-impact is clicked to change
8~12 parts of agent of property；0.5~1 part of antioxidant；0.3~0.5 part of light stabilizer；3~6 parts of compatilizer；20~30 parts of compounded mix.
Described reinforcing fiber is at least one of glass fibre, steel fibre and carbon fiber.
Described abrasion resistance modifier is calcium sulfate crystal whiskers, magnesium sulfate crystal whisker, ZnOw, magnesium borate crystal whisker, aluminium borate
At least one of whisker, calcium carbonate crystal whisker, potassium titanate crystal whisker, silicon carbide whisker.
Described compound anti-impact modifier is at least two in CPE, MBS, ABS, ACR, SBS.
Described antioxidant is Hinered phenols antioxidant, monothioester kind antioxidant, phosphite ester kind antioxidant, compound antioxygen
At least one of agent.
Described light stabilizer is benzophenone, benzotriazole, salicylic acid esters, benzoates, cyanoacrylate
At least one of esters of gallic acid, hindered amines stabilizer.
Described compatilizer is at least one of PP-g-MAH and PE-g-MAH.
Described compounded mix is at least two in talcum powder, calcium carbonate, kaolin, mica powder, barium sulfate.
A kind of preparation method for the sleeve pipe for isolating concrete protective reserved steel bar, is to weigh each component raw material in proportion,
After well mixed, blending in an extruder, extrusion, cooling and shaping are put.
Application of the described sleeve pipe in reserved steel bar protection.
The beneficial effects of the invention are as follows：
1st, sleeve pipe hardness of the invention is higher, good impact resistance, ageing-resistant performance are good, it is adaptable to isolate concrete protective pre-
Stay reinforcing bar；
2nd, reserved, embedded bar and concrete are kept apart using the sleeve pipe of the present invention, is easy to follow-up digging out and connecting；
3rd, sleeve pipe of the invention plays cushioning effect between reinforcing bar and concrete, can be mixed instead of artificial chisel using big gun machine
Solidifying soil, reduces labor intensity；
4th, after using the sleeve pipe of the present invention, it can avoid repeatedly bending reserved, embedded bar, effectively prevent reinforcing bar from fractureing.
Brief description of the drawings
Fig. 1 is that the sleeve pipe of the present invention applies the schematic diagram protected in embedded bar.
Embodiment
A kind of sleeve pipe for isolating concrete protective reserved steel bar, described sleeve pipe raw material is made up of by mass parts following raw material：
90~110 parts of PP；8~15 parts of PE；5~10 parts of reinforcing fiber；4~6 parts of abrasion resistance modifier；Compound anti-impact is clicked to change
8~12 parts of agent of property；0.5~1 part of antioxidant；0.3~0.5 part of light stabilizer；3~6 parts of compatilizer；20~30 parts of compounded mix.
It is preferred that, described PP is the one or two kinds of mixture in HOPP, COPP.
It is preferred that, described PP is low density polyethylene (LDPE) or the one or two kinds of mixture of high density polyethylene (HDPE).
It is preferred that, described reinforcing fiber is at least one of glass fibre, steel fibre and carbon fiber；Further preferably
, described reinforcing fiber is glass fibre.
It is preferred that, described abrasion resistance modifier is calcium sulfate crystal whiskers, magnesium sulfate crystal whisker, ZnOw, magnesium borate crystal whisker,
At least one of aluminium borate whisker, calcium carbonate crystal whisker, potassium titanate crystal whisker, silicon carbide whisker；It is further preferred that described is resistance to
Mill modifying agent is at least one of calcium sulfate crystal whiskers, magnesium sulfate crystal whisker, ZnOw, silicon carbide whisker；It is further excellent
Choosing, described abrasion resistance modifier is calcium sulfate crystal whiskers.
It is preferred that, described compound anti-impact modifier is at least two in CPE, MBS, ABS, ACR, SBS；Further
It is preferred that, described compound anti-impact modifier is any two kinds in MBS, ACR, SBS；Still further preferably, it is described
Compound anti-impact modifier is ACR and MBS；Further, in described compound anti-impact modifier, ACR and MBS quality
Than for 1：(1.5~2).
It is preferred that, described antioxidant is Hinered phenols antioxidant, monothioester kind antioxidant, phosphite ester kind antioxidant,
At least one of composite antioxidant；It is further preferred that described antioxidant is antioxidant 1010, irgasfos 168, antioxidant
At least one of 1076；Still further preferably, described antioxidant is irgasfos 168 and antioxidant 1010；Further
, in described antioxidant, the mass ratio of irgasfos 168 and antioxidant 1010 is 2:1.
It is preferred that, described light stabilizer is benzophenone, benzotriazole, salicylic acid esters, benzoates, cyanogen
At least one of base esters of acrylic acid, hindered amines stabilizer；It is further preferred that described light stabilizer benzotriazole
Stabilizer；Still further preferably, described light stabilizer is UV-P, UV-234, UV-320, UV-326, UV-327 and UV-
One of which in 328.
It is preferred that, described compatilizer is at least one of PP-g-MAH and PE-g-MAH；It is further preferred that described
Compatilizer be PP-g-MAH.
It is preferred that, described compounded mix is at least two in talcum powder, calcium carbonate, kaolin, mica powder, barium sulfate
Kind；It is further preferred that described compounded mix is the mixture of talcum powder and calcium carbonate；Further, in compounded mix
The mass ratio of talcum powder and calcium carbonate is 2:1.
It is preferred that, a kind of preparation method of the sleeve pipe of described isolation concrete protective reserved steel bar, is to claim in proportion
Each component raw material is taken, after being well mixed, blending in an extruder, extrusion, cooling and shaping is put.
Application of the described sleeve pipe in reserved steel bar protection.
Described application, comprises the following steps：
1) the reserved steel bar length protected as needed, cuts the sleeve pipe of equal length；
2) casing pipe sleeve is lived reserved steel bar, the termination of sleeve pipe is concordant with steel bar end；
3) termination of sleeve pipe is covered tightly with block, the other end of sleeve pipe is tightened with band.
Described block is this area common plastics, such as polyethylene, polyvinyl chloride, polypropylene.
Described band is plastic tape, adhesive tape, steel wire rope or steel wire.
Reinforcing bar of the present invention is the standard bar material that architectural engineering is commonly used, and preferably diameter range is 16~40mm's
Reinforcing bar.
Further, the diameter of described sleeve pipe 3~4mm bigger than reinforcing bar.
Further, the thickness of described sleeve pipe is 1.2~1.4mm.
Present disclosure is described in further detail below by way of specific embodiment.
Embodiment：
Obtained sleeve pipe raw material (by mass parts) and performance see the table below 1 as stated above：
The sleeve pipe raw material produced by the present invention of table 1 and performance
The analysis method of burn-in test is：Thermal ageing test is carried out in thermal aging oven, condition is：80℃×72h.Remaining
Test is carried out by national standard.
Using：
Accompanying drawing 1 is that the sleeve pipe of the present invention applies the schematic diagram protected in embedded bar.With reference to accompanying drawing 1, sleeve pipe of the invention
Applying the idiographic flow protected in reserved steel bar is：
1st, measuring needs reserved steel bar head length to be protected, and shears with scissors the sleeve pipe of equal length；
2nd, the sleeve pipe sheared is packaged into reserved steel bar, termination is concordant with steel bar end；
3rd, termination is covered tightly with block, and the sleeve pipe other end is tightened using Plastic Bandage.
Sleeve pipe prepared by the present invention and commercially available PVC-U conduits and polyolefin heat-shrink tube etc. are compared, with
From the contrast applied exemplified by a diameter of 32mm reinforcing bar, 2 are the results are shown in Table.
The unlike material sleeve pipe using effect of table 2 is contrasted
Claims (10)
1. a kind of sleeve pipe for isolating concrete protective reserved steel bar, it is characterised in that：Described sleeve pipe raw material by mass parts by with
Lower raw material composition：90 ~ 110 parts of PP；8 ~ 15 parts of PE；5 ~ 10 parts of reinforcing fiber；4 ~ 6 parts of abrasion resistance modifier；Compound shock resistance
8 ~ 12 parts of modifying agent；0.5 ~ 1 part of antioxidant；0.3 ~ 0.5 part of light stabilizer；3 ~ 6 parts of compatilizer；20 ~ 30 parts of compounded mix.
2. a kind of sleeve pipe for isolating concrete protective reserved steel bar according to claim 1, it is characterised in that：Described
Reinforcing fiber is at least one of glass fibre, steel fibre and carbon fiber.
3. a kind of sleeve pipe for isolating concrete protective reserved steel bar according to claim 1, it is characterised in that：Described
Abrasion resistance modifier is calcium sulfate crystal whiskers, magnesium sulfate crystal whisker, ZnOw, magnesium borate crystal whisker, aluminium borate whisker, calcium carbonate crystalline substance
At least one of palpus, potassium titanate crystal whisker, silicon carbide whisker.
4. a kind of sleeve pipe for isolating concrete protective reserved steel bar according to claim 1, it is characterised in that：Described
Compound anti-impact modifier is at least two in CPE, MBS, ABS, ACR, SBS.
5. a kind of sleeve pipe for isolating concrete protective reserved steel bar according to claim 1, it is characterised in that：Described
Antioxidant is at least one in Hinered phenols antioxidant, monothioester kind antioxidant, phosphite ester kind antioxidant, composite antioxidant
Kind.
6. a kind of sleeve pipe for isolating concrete protective reserved steel bar according to claim 1, it is characterised in that：Described
Light stabilizer is benzophenone, benzotriazole, salicylic acid esters, benzoates, cyanoacrylate, hindered amines
At least one of stabilizer.
7. a kind of sleeve pipe for isolating concrete protective reserved steel bar according to claim 1, it is characterised in that：Described
Compatilizer is at least one of PP-g-MAH and PE-g-MAH.
8. a kind of sleeve pipe for isolating concrete protective reserved steel bar according to claim 1, it is characterised in that：Described
Compounded mix is at least two in talcum powder, calcium carbonate, kaolin, mica powder, barium sulfate.
9. a kind of preparation method of the sleeve pipe of isolation concrete protective reserved steel bar described in claim 1, it is characterised in that：
Each component raw material is weighed in proportion, after being well mixed, puts blending in an extruder, extrusion, cooling and shaping.
10. application of the sleeve pipe in reserved steel bar protection described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710257847.1A CN107057190B (en) | 2017-04-19 | 2017-04-19 | Sleeve for protecting reserved steel bar by isolating concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710257847.1A CN107057190B (en) | 2017-04-19 | 2017-04-19 | Sleeve for protecting reserved steel bar by isolating concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107057190A true CN107057190A (en) | 2017-08-18 |
| CN107057190B CN107057190B (en) | 2020-07-14 |
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ID=59601163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710257847.1A Active CN107057190B (en) | 2017-04-19 | 2017-04-19 | Sleeve for protecting reserved steel bar by isolating concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107057190B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107459709A (en) * | 2017-08-28 | 2017-12-12 | 吴江市金鑫塑料厂 | A kind of high-strength abrasion-proof plastics |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05256088A (en) * | 1992-03-13 | 1993-10-05 | Tokyo Gas Co Ltd | Driving double steel pipe |
| CN103087388A (en) * | 2013-01-23 | 2013-05-08 | 浙江飞龙管业有限公司 | Reinforced and modified corrugated power protection sleeve |
-
2017
- 2017-04-19 CN CN201710257847.1A patent/CN107057190B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05256088A (en) * | 1992-03-13 | 1993-10-05 | Tokyo Gas Co Ltd | Driving double steel pipe |
| CN103087388A (en) * | 2013-01-23 | 2013-05-08 | 浙江飞龙管业有限公司 | Reinforced and modified corrugated power protection sleeve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107459709A (en) * | 2017-08-28 | 2017-12-12 | 吴江市金鑫塑料厂 | A kind of high-strength abrasion-proof plastics |
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| Publication number | Publication date |
|---|---|
| CN107057190B (en) | 2020-07-14 |
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