CN110341033A - The manufacturing process of pressure-resistant cracking resistance tubular pole - Google Patents
The manufacturing process of pressure-resistant cracking resistance tubular pole Download PDFInfo
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- CN110341033A CN110341033A CN201910600306.3A CN201910600306A CN110341033A CN 110341033 A CN110341033 A CN 110341033A CN 201910600306 A CN201910600306 A CN 201910600306A CN 110341033 A CN110341033 A CN 110341033A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/02—Methods or machines specially adapted for the production of tubular articles by casting into moulds
- B28B21/10—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means
- B28B21/22—Methods or machines specially adapted for the production of tubular articles by casting into moulds using compacting means using rotatable mould or core parts
- B28B21/30—Centrifugal moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B21/00—Methods or machines specially adapted for the production of tubular articles
- B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
- B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
- B28B21/62—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements circumferential laterally tensioned
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses the manufacturing process of pressure-resistant cracking resistance tubular pole, comprising the following steps: step 1: banding steel cage: stirrup is placed on the disk in binding machine, and trolley is moved with fixed speed, and the reinforcing bar on disk in main reinforcement then to be constantly wound steel reinforcement cage；Step 2: enter mould: the steel reinforcement cage that binding is completed being hung in prefabricated molds using overhead crane, and is connect with deformed bar anchor plate, stretch board, tension rod；Step 3: concrete perfusion: by cement 340kg, miberal powder: 110kg, flyash: 50kg, water: 125kg, fine sand: 650kg, rubble: 900kg, additive: fresh concrete is made with concrete forced mixer in 10kg；Wherein, rubble is crossed in molten asphalt and is soaked, its surface is made to adhere to bitumen layer；Fresh concrete is uniformly filled up into its female die along centrifugal steel mould, in the more cloth concrete in one end of default tensioning.
Description
Technical field
The invention belongs to the field of building materials, and in particular to the manufacturing process of pressure-resistant cracking resistance tubular pole.
Background technique
Prestressed concrete pipe pile can be divided into post-tensioned prestressing stake and pretensioned-prestressed tube pile.Pretensioned prestressing
Tubular pole is using a kind of hollow cylinder elongate concrete prefabricated components made of pretensioned prestressing technique and centrifugal casting, master
It to be made of cylinder-shaped pile body, end plate and steel hoop etc..
The existing general coarse aggregate of tubular pole uses rubble, and fine aggregate is using fine sand etc., rubble and fine sand with high hardness
Feature, but during piling, pile body can generate micro-strain, in this course, due to the rubble of cement and its package, carefully
Deformation rate between sand is different, it is easy to loosen the combination between cement and rubble, fine sand, form gap, cause tubular pole
Mechanical strength, mechanical property, resistance to corrosion reduction, the lost of life.
Summary of the invention
The present invention is intended to provide the manufacturing process of pressure-resistant cracking resistance tubular pole, the tubular pole can by by rubble by the drip that melts
It crosses and soaks in blueness, it is made to wrap up one layer of pitch, make to form the buffer layer with autoregulation between rubble and cement, on the one hand
Increase the compactness linked between rubble and cement；On the other hand it is played between rubble and cement in tubular pole shots slow
Punching effect, prevents the two from separating, and generates minim gap；Meanwhile the heat slow release that pitch carries, the equal of cement can be promoted
Spin coating is solidifying, to improve the quality of tubular pole.
Technical scheme is as follows:
The manufacturing process of pressure-resistant cracking resistance tubular pole, comprising the following steps:
Step 1: banding steel cage: stirrup is placed on the disk in binding machine, and trolley is moved with fixed speed, circle
Reinforcing bar on disk in main reinforcement then to be constantly wound steel reinforcement cage；
Step 2: enter mould: being hung in the steel reinforcement cage that binding is completed in prefabricated molds using overhead crane, and and deformed bar
Anchor plate, stretch board, tension rod connection；
Step 3: concrete perfusion: by cement 340-420kg, miberal powder: 110-130kg, flyash: 50-75kg, water:
125-150kg, fine sand: 650-750kg, rubble: 900-1200kg, additive: 8-10kg concrete forced mixer system
At fresh concrete；Wherein, rubble is crossed in molten asphalt and is soaked, its surface is made to adhere to bitumen layer；By fresh concrete along centrifugation
Punching block uniformly fills up its female die, in the more cloth concrete in one end of default tensioning；
Step 4: molding: upper mold section is hung to above female die, is fixed upper and lower two-half die with bolt, it is ensured that mold exists
It is not loosened in high speed centrifugation rotation process, concrete not running pulp；
Step 5: tensioning: integral tension is carried out to the steel reinforcement cage after molding using stretching machine, is stretched to reinforced steel bar strength
After 75%, tension rod is fixed on centrifugal steel mould with big nut；
Step 6: centrifugal forming: the centrifugal steel mould after stretch-draw anchor being hung on centrifuge, is centrifuged in two times, the
Once successively accelerate by initial velocity, middling speed, high speed, the stepwise speed of high speed, centrifugation time 7-10min；Centrifugation is completed for the first time
After raise stretching end, topple over the waste pulp water generated in centrifugal process, it is quiet to stop 3-5min；Middling speed, high speed, height are successively pressed for the second time
The stepwise speed of speed accelerates, centrifugation time 5-7min；Stretching end is raised after the completion of second of centrifugation, is toppled in centrifugal process again
The waste pulp water of generation；
Step 7: steam press maintenance: the band mould concrete tubular pile that centrifugation is completed is hung in atmospheric steam curing pond, steam temperature
Degree is 160-170 DEG C, steam pressure 1.1-1.15MPa, steam pressure time 5-7h；
Step 8: demoulding: after reaching the steam pressure time, punching block is recalled.It dismantles the fixing bolts of two sides, is hung by truss
Vehicle can dismantle model.
Wherein, the additive includes corrosion inhibitor 1.5kg, water-reducing agent 2.5kg, acetic acid (just) pentyl ester 4kg, chlorination alkyl three
Methyl ammonium 2kg.
Wherein, the part fine sand of step 3 is crossed in the impact-resistant polystyrene of melting and is soaked, and it is poly- in anti-impact to cross the fine sand after soaking
Grinding is separated from each other bonding fine sand after styrene solidification；Unrestrained impact-resistant polystyrene melts again after collecting to be used；It is described
Part fine sand is distributed in tubular pole by impact end.
The invention has the following beneficial effects:
1, the tubular pole can make its wrap up one layer of pitch, make rubble and water by soaking rubble by crossing in the pitch that melts
The buffer layer with autoregulation is formed between mud, on the one hand increases the compactness linked between rubble and cement；It is another
Aspect plays buffer function in tubular pole shots between rubble and cement, prevents the two from separating, and generates minim gap；Together
When, the heat slow release that pitch carries can promote the uniform gelling of cement, to improve the quality of tubular pole.
2, centrifugal forming carries out in two times, and effect is to give inside concrete reinforcing bar, cement, rubble, fine sand, additive
Deng the time to be distributed combination, after first time centrifugal forming, due to the quick mixing of each component, changes in distribution, interaction
The relationships such as power, there are certain rebounds, i.e. internal stress for itself；By it is of short duration it is quiet stop, make the internal stresses release, be poured out simultaneously
Waste pulp water；Then it carries out being centrifuged for second, to obtain better centrifugal effect, the tubular pole after centrifugation has compared with fine uniform
Ingredient, more stable internal stress system, therefore its mechanical property is higher after steam-cured.
3, part fine sand is crossed in the impact-resistant polystyrene of melting and is soaked, and is distributed in tubular pole by impact end, effect master
If, can be closer in conjunction with cement under impact in order to make that there is stronger adhesive property between fine sand and cement, no
It is also easy to produce gap, meanwhile, it buffers concussion and tubular pole impact end of the impact force between fine sand and cement and the transmitting in the middle part of it is shaken
It swings, makes the whole transmitting downwards of impact force, improve the transmission effect of power.
4, additive includes corrosion inhibitor, water-reducing agent, acetic acid (just) pentyl ester, alkyl trimethylammonium chloride；Acetic acid (just) pentyl ester
It can be used as solvent and diluent, improve each additive dispersion rate in concrete, and alkyl trimethylammonium chloride can be significant
Colloidity is improved, the two cooperates the function and effect that can significantly improve additive.
Specific embodiment
The present invention is further illustrated by the following examples, but protection scope of the present invention is not limited to following reality
Apply example.
Embodiment 1
The manufacturing process of pressure-resistant cracking resistance tubular pole, comprising the following steps:
Step 1: banding steel cage: stirrup is placed on the disk in binding machine, and trolley is moved with fixed speed, circle
Reinforcing bar on disk in main reinforcement then to be constantly wound steel reinforcement cage；
Step 2: enter mould: being hung in the steel reinforcement cage that binding is completed in prefabricated molds using overhead crane, and and deformed bar
Anchor plate, stretch board, tension rod connection；
Step 3: concrete perfusion: by cement 340kg, miberal powder: 110kg, flyash: 50kg, water: 125kg, fine sand:
650kg, rubble: 900kg, additive: fresh concrete is made with concrete forced mixer in 10kg；Wherein, rubble is molten
Melt to cross in pitch and soak, its surface is made to adhere to bitumen layer；Fresh concrete is uniformly filled up into its female die along centrifugal steel mould, default
The more cloth concrete in one end of tensioning；
Step 4: molding: upper mold section is hung to above female die, is fixed upper and lower two-half die with bolt, it is ensured that mold exists
It is not loosened in high speed centrifugation rotation process, concrete not running pulp；
Step 5: tensioning: integral tension is carried out to the steel reinforcement cage after molding using stretching machine, is stretched to reinforced steel bar strength
After 75%, tension rod is fixed on centrifugal steel mould with big nut；
Step 6: centrifugal forming: the centrifugal steel mould after stretch-draw anchor being hung on centrifuge, is centrifuged in two times, the
Once successively accelerate by initial velocity, middling speed, high speed, the stepwise speed of high speed, centrifugation time 7min；It is lifted after the completion of centrifugation for the first time
High stretching end topples over the waste pulp water generated in centrifugal process, quiet to stop 3min；Middling speed, high speed, the speed of high speed are successively pressed for the second time
Degree accelerates step by step, centrifugation time 5min；Raise stretching end after the completion of second centrifugation, topple over again generated in centrifugal process it is useless
Pulp-water；
Step 7: steam press maintenance: the band mould concrete tubular pile that centrifugation is completed is hung in atmospheric steam curing pond, steam temperature
Degree is 160 DEG C, steam pressure 1.1MPa, steam pressure time 5h；
Step 8: demoulding: after reaching the steam pressure time, punching block is recalled.It dismantles the fixing bolts of two sides, is hung by truss
Vehicle can dismantle model.
Further, the additive includes corrosion inhibitor 1.5kg, water-reducing agent 2.5kg, acetic acid (just) pentyl ester 4kg, kelene
Base trimethyl ammonium 2kg.
Embodiment 2
The manufacturing process of pressure-resistant cracking resistance tubular pole, comprising the following steps:
Step 1: banding steel cage: stirrup is placed on the disk in binding machine, and trolley is moved with fixed speed, circle
Reinforcing bar on disk in main reinforcement then to be constantly wound steel reinforcement cage；
Step 2: enter mould: being hung in the steel reinforcement cage that binding is completed in prefabricated molds using overhead crane, and and deformed bar
Anchor plate, stretch board, tension rod connection；
Step 3: concrete perfusion: by cement 380kg, miberal powder: 120kg, flyash: 65kg, water: 140kg, fine sand:
700kg, rubble: 1050kg, additive: fresh concrete is made with concrete forced mixer in 10kg；Wherein, rubble is molten
Melt to cross in pitch and soak, its surface is made to adhere to bitumen layer；Fresh concrete is uniformly filled up into its female die along centrifugal steel mould, default
The more cloth concrete in one end of tensioning；
Step 4: molding: upper mold section is hung to above female die, is fixed upper and lower two-half die with bolt, it is ensured that mold exists
It is not loosened in high speed centrifugation rotation process, concrete not running pulp；
Step 5: tensioning: integral tension is carried out to the steel reinforcement cage after molding using stretching machine, is stretched to reinforced steel bar strength
After 75%, tension rod is fixed on centrifugal steel mould with big nut；
Step 6: centrifugal forming: the centrifugal steel mould after stretch-draw anchor being hung on centrifuge, is centrifuged in two times, the
Once successively accelerate by initial velocity, middling speed, high speed, the stepwise speed of high speed, centrifugation time 8min；It is lifted after the completion of centrifugation for the first time
High stretching end topples over the waste pulp water generated in centrifugal process, quiet to stop 4min；Middling speed, high speed, the speed of high speed are successively pressed for the second time
Degree accelerates step by step, centrifugation time 6min；Raise stretching end after the completion of second centrifugation, topple over again generated in centrifugal process it is useless
Pulp-water；
Step 7: steam press maintenance: the band mould concrete tubular pile that centrifugation is completed is hung in atmospheric steam curing pond, steam temperature
Degree is 165 DEG C, steam pressure 1.13MPa, steam pressure time 6h；
Step 8: demoulding: after reaching the steam pressure time, punching block is recalled.It dismantles the fixing bolts of two sides, is hung by truss
Vehicle can dismantle model.
Further, the additive includes corrosion inhibitor 1.5kg, water-reducing agent 2.5kg, acetic acid (just) pentyl ester 4kg, kelene
Base trimethyl ammonium 2kg.
Further, the part fine sand of step 3 is crossed in the impact-resistant polystyrene of melting and is soaked, and crosses the fine sand after soaking anti-
Grinding is separated from each other bonding fine sand after rushing polystyrene solidification；Unrestrained impact-resistant polystyrene melts again after collecting to be used；
The part fine sand is distributed in tubular pole by impact end.
Embodiment 3
The manufacturing process of pressure-resistant cracking resistance tubular pole, comprising the following steps:
Step 1: banding steel cage: stirrup is placed on the disk in binding machine, and trolley is moved with fixed speed, circle
Reinforcing bar on disk in main reinforcement then to be constantly wound steel reinforcement cage；
Step 2: enter mould: being hung in the steel reinforcement cage that binding is completed in prefabricated molds using overhead crane, and and deformed bar
Anchor plate, stretch board, tension rod connection；
Step 3: concrete perfusion: by cement 420kg, miberal powder: 130kg, flyash: 75kg, water: 150kg, fine sand:
750kg, rubble: 1200kg, additive: fresh concrete is made with concrete forced mixer in 10kg；Wherein, rubble is molten
Melt to cross in pitch and soak, its surface is made to adhere to bitumen layer；Fresh concrete is uniformly filled up into its female die along centrifugal steel mould, default
The more cloth concrete in one end of tensioning；
Step 4: molding: upper mold section is hung to above female die, is fixed upper and lower two-half die with bolt, it is ensured that mold exists
It is not loosened in high speed centrifugation rotation process, concrete not running pulp；
Step 5: tensioning: integral tension is carried out to the steel reinforcement cage after molding using stretching machine, is stretched to reinforced steel bar strength
After 75%, tension rod is fixed on centrifugal steel mould with big nut；
Step 6: centrifugal forming: the centrifugal steel mould after stretch-draw anchor being hung on centrifuge, is centrifuged in two times, the
Once successively accelerate by initial velocity, middling speed, high speed, the stepwise speed of high speed, centrifugation time 10min；After the completion of being centrifuged for the first time
Stretching end is raised, the waste pulp water generated in centrifugal process is toppled over, it is quiet to stop 5min；For the second time successively by middling speed, high speed, high speed
Stepwise speed accelerates, centrifugation time 7min；After the completion of second centrifugation stretching end is raised, topples over generating in centrifugal process again
Waste pulp water；
Step 7: steam press maintenance: the band mould concrete tubular pile that centrifugation is completed is hung in atmospheric steam curing pond, steam temperature
Degree is 170 DEG C, steam pressure 1.15MPa, steam pressure time 7h；
Step 8: demoulding: after reaching the steam pressure time, punching block is recalled.It dismantles the fixing bolts of two sides, is hung by truss
Vehicle can dismantle model.
Further, the additive includes corrosion inhibitor 1.5kg, water-reducing agent 2.5kg, acetic acid (just) pentyl ester 4kg, kelene
Base trimethyl ammonium 2kg.
Contrast sample:
The tubular pole of Jiangsu company manufacture, tubular pole classification PHC, strength grade C80, model A, specification 300x70, when maintenance
Between 28d.
There is the identical basic parameter in part: tubular pole outer diameter 300mm, model according to the tubular pole that three kinds of embodiments and technique make
A2, main reinforcement diameter 6 quantity 12, are respectively cut 100mmx100mmx50mm test specimen, test result see the table below: by 3 kinds
The test specimen and contrast sample of embodiment are detected respectively, obtain following detection data:
As seen from the above table, pressure-resistant cracking resistance tubular pole obtained compares comparative example, and there is the smaller slump, chloride ion to expand
The rate of dissipating and bigger compression strength, overall performance improve about 5%-8%.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included in protection scope of the present invention.
Claims (3)
1. the manufacturing process of pressure-resistant cracking resistance tubular pole, it is characterised in that: the following steps are included:
Step 1: banding steel cage: stirrup is placed on the disk in binding machine, and trolley is moved with fixed speed, on disk
Reinforcing bar then to be constantly wound steel reinforcement cage in main reinforcement；
Step 2: enter mould: the steel reinforcement cage that binding is completed being hung in prefabricated molds using overhead crane, and is anchored with deformed bar
Plate, stretch board, tension rod connection；
Step 3: concrete perfusion: by cement 340-420kg, miberal powder: 110-130kg, flyash: 50-75kg, water: 125-
150kg, fine sand: 650-750kg, rubble: 900-1200kg, additive: 8-10kg is made newly with concrete forced mixer
Mixed concrete；Wherein, rubble is crossed in molten asphalt and is soaked, its surface is made to adhere to bitumen layer；By fresh concrete along centrifugal steel mould
Its female die is uniformly filled up, in the more cloth concrete in one end of default tensioning；
Step 4: molding: upper mold section is hung to above female die, is fixed upper and lower two-half die with bolt, it is ensured that mold is in high speed
It is not loosened in centrifugation rotation process, concrete not running pulp；
Step 5: tensioning: integral tension is carried out to the steel reinforcement cage after molding using stretching machine, is stretched to the 75% of reinforced steel bar strength
Afterwards, tension rod is fixed on centrifugal steel mould with big nut；
Step 6: centrifugal forming: the centrifugal steel mould after stretch-draw anchor being hung on centrifuge, is centrifuged in two times, for the first time
Successively accelerate by initial velocity, middling speed, high speed, the stepwise speed of high speed, centrifugation time 7-10min；It is lifted after the completion of centrifugation for the first time
High stretching end topples over the waste pulp water generated in centrifugal process, quiet to stop 3-5min；For the second time successively by middling speed, high speed, high speed
Stepwise speed accelerates, centrifugation time 5-7min；Stretching end is raised after the completion of second of centrifugation, topples in centrifugal process generate again
Waste pulp water；
Step 7: steam press maintenance: the band mould concrete tubular pile that centrifugation is completed is hung in atmospheric steam curing pond, vapor (steam) temperature is
160-170 DEG C, steam pressure 1.1-1.15MPa, steam pressure time 5-7h；
Step 8: demoulding: after reaching the steam pressure time, punching block is recalled, the fixing bolt for two sides of dismantling is by overhead crane
Model can be dismantled.
2. the manufacturing process of pressure resistance cracking resistance tubular pole as described in claim 1, it is characterised in that: the additive includes corrosion inhibitor
1.5kg, water-reducing agent 2.5kg, acetic acid (just) pentyl ester 4kg, alkyl trimethylammonium chloride 2kg.
3. the manufacturing process of pressure resistance cracking resistance tubular pole as described in claim 1, it is characterised in that: the part fine sand of step 3 is molten
Leaching is crossed in the impact-resistant polystyrene melted, the fine sand crossed after soaking grinding after impact-resistant polystyrene solidification divides bonding fine sand mutually
From；Unrestrained impact-resistant polystyrene melts again after collecting to be used；The part fine sand is distributed in tubular pole by impact end.
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| CN111574129A (en) * | 2020-05-29 | 2020-08-25 | 江苏隆昌混凝土有限公司 | Energy-saving renewable high-strength anti-seismic concrete and preparation method thereof |
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