CN104710155A - Production technology of precast reinforced concrete piles - Google Patents
Production technology of precast reinforced concrete piles Download PDFInfo
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- CN104710155A CN104710155A CN201310676716.9A CN201310676716A CN104710155A CN 104710155 A CN104710155 A CN 104710155A CN 201310676716 A CN201310676716 A CN 201310676716A CN 104710155 A CN104710155 A CN 104710155A
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Abstract
The invention discloses a production technology of precast reinforced concrete piles. The technology comprises the following steps: making a steel reinforcement cage, putting the steel reinforcement cage in a precast concrete pile die, injecting concrete to the die, arranging the die in a centrifuge device, carrying out centrifugal rotation, carrying out steam curing in a curing pool, demolding, taking out, and molding. The precast concrete pile die is an elongated die with the length of above 25m, and a plurality of precast concrete piles can be simultaneously produced through one die; and the above concrete is prepared from the following raw materials, by weight, 80-100 parts of a gelling material, 20-30 parts of fine aggregate, 30-100 parts of coarse aggregate, 5-10 parts of a water reducer and 100-200 parts of water. The elongated steel die adopted in the invention allows a plurality of centrifugal concrete piles with the length of above 10m to be made, the concrete formula is reasonable, and the centrifugal concentrate piles made in the invention have high strength and good quality.
Description
Technical field
The present invention relates to a kind of preparation technology of precast reinforced concrete piles.
Background technology
At present, existing precast reinforced concrete piles has: precast concrete square pile, the stake of precast concrete rectangle, prestress precast concrete square pile, the stake of prestress precast concrete rectangle, centrifuging prestressed concrete pipe pile, the stake of centrifuging pre-stressed concrete hollow square etc.There is following shortcoming in its preparation technology: the rigidity mould adopted on the one hand is shorter, and a mould once also can only manufacture more than 10 meters centrifugal concrete piles; Concrete formulation is unreasonable on the other hand, and the centrifugal concrete pile intensity of preparation is low, of poor quality.
Summary of the invention
In order to solve the problems of the technologies described above, the invention provides a kind of preparation technology of precast reinforced concrete piles.
The technology used in the present invention solution is:
A preparation technology for precast reinforced concrete piles, comprises the following steps: make Steel Reinforcement Cage, Steel Reinforcement Cage is put into precast concrete pile die, concrete is injected in mould, inserted by mould on centrifugation apparatus and carry out centrifugal rotation, carry out vapor cure at curing pool, the demoulding is also taken out shaping; Described precast concrete pile die is the long mould of more than 25 meters, a mould can produce branched precast concrete pile simultaneously, on mould, negative die transport is in process of production that described centrifugation apparatus, curing pool are laterally arranged in parallel perpendicular to factory building crane beam axis direction laterally to move in parallel perpendicular to factory building crane beam axis direction; Described concrete is made up of following weight parts raw material: gelling material 80-100 part, fine aggregate 20-30 part, coarse aggregate 30-100 part, water reducer 5-10 part and water 100-200 part; Described gelling material is made up of following weight parts proportioning raw material: cement 5-10 part, levigate sand 10-30 part, flyash 10-15 part and Starso 3-5 part.
Preferably, described concrete is made up of following weight parts raw material: gelling material 80 parts, fine aggregate 25 parts, coarse aggregate 50 parts, water reducer 6 parts and 150 parts, water; Described gelling material is made up of following weight parts proportioning raw material: cement 6 parts, 15 parts, levigate sand, 12 parts, flyash and Starso 3 parts.
The preparation technology of above-mentioned precast reinforced concrete piles, specifically comprises:
A, select the main muscle of prestress and spiral bar, adopt automatic welding machine processing and fabricating precast concrete pile cages;
B, ready two or more Steel Reinforcement Cage is loaded onto end plate after, joined end to end by intermediate joint device and connect, in yi word pattern;
C, precast concrete pile die is taken apart as upper and lower half module; To be winched to by upper mold section with lifting machine on the clean-up frame in patrix clearing zone, the two or more Steel Reinforcement Cages simultaneously connected by step b winch in negative die, then load onto precast concrete pile end plate at the two ends of mould, anchor sheet, stretch board, stretching support board;
D, the negative die installing Steel Reinforcement Cage is winched on flat-bed trailer by lifting machine;
E, take each raw material by above-mentioned weight, make fresh concrete with concrete forced mixer, the concrete prepared is injected the negative die installing Steel Reinforcement Cage by feeding hopper;
F, upper mold section and negative die to be closed up, die bolt is screwed and puts in place;
G, carry out prestress stretching by the Steel Reinforcement Cage after jack pair matched moulds, be stretched to the numerical value meeting national standard;
H, mould lifting machine good for prestressed stretch-draw is winched to high speed rotating on centrifugation apparatus;
I, the pulp-water in mould is toppled over out;
J, mould is winched in curing pool together with concrete pile, carry out vapor cure;
K, mould to be taken apart, two in same mould or branched precast concrete pile are carried out stripping operation, removes intermediate joint device, be transported to a stockyard by the dolly in Chu Zhuan district, then carry out next step cyclic production.
Preferably, above-mentioned lifting machine, when handling mould and Steel Reinforcement Cage, adopts the mode of multiple spot lifting, to coordinate the long mould of precast concrete pile.
Preferably, in step h, rotating centrifugal process is as follows: winch to above whizzer by the band mould centrifugal pile after above-mentioned stretch-draw anchor, and accelerate step by step by the centrifugal system of initial velocity, middling speed, high speed, high speed, centrifugation time is 20 ~ 30min.
Preferably, in step j, vapor cure process is as follows: winch in atmospheric steam curing pond by the band mould centrifugal pile after centrifugal forming, quietly stops 1 ~ 2h, is slowly warming up to 105 ~ 110 DEG C, maintenance 2 ~ 3h under normal pressure; Then the offcenter squared pile after the demoulding is entered autoclave again and carry out high temperature steam curing, temperature is 160 ~ 170 DEG C, and saturated vapour pressure is 1.5Mpa, curing time 5 ~ 6h.
Advantageous Effects of the present invention is:
1) the rigidity mould of the lengthening adopted on the one hand, a mould once can manufacture branched more than 10 meters centrifugal concrete piles; And making concrete formulation more reasonable, obtained centrifugal concrete pile intensity is high, and quality is good;
2) can make to produce more in order, long mould and horizontal flowing water layout can be coordinated, greatly enhance productivity, avoid disorderly and unsystematic in production or grow potential safety hazard;
3) centrifugal pile manufacture craft Concrete in Natural curing time of the present invention is short, and production efficiency is high, and floor space is little, and power consumption is few, and obtained offcenter squared pile intensity is high, and Functionality, quality and appealing design can reduce foundation works amount and engineering cost etc.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described:
Embodiment 1
Raw material is taken by following weight:
Gelling material 80 parts, fine aggregate 25 parts, coarse aggregate 50 parts, water reducer 6 parts and 150 parts, water; Described gelling material is made up of following weight parts proportioning raw material: cement 6 parts, 15 parts, levigate sand, 12 parts, flyash and Starso 3 parts.
The preparation technology of precast reinforced concrete piles, concrete steps are as follows:
A, select the main muscle of prestress and spiral bar, adopt automatic welding machine processing and fabricating precast concrete pile cages;
B, ready two or more Steel Reinforcement Cage is loaded onto end plate after, joined end to end by intermediate joint device and connect, in yi word pattern;
C, precast concrete pile die is taken apart as upper and lower half module; To be winched to by upper mold section with lifting machine on the clean-up frame in patrix clearing zone, the two or more Steel Reinforcement Cages simultaneously connected by step b winch in negative die, then load onto precast concrete pile end plate at the two ends of mould, anchor sheet, stretch board, stretching support board;
D, the mode of multiple spot lifting is adopted to winch on flat-bed trailer by lifting machine the negative die installing Steel Reinforcement Cage;
E, take each raw material by above-mentioned weight, make fresh concrete with concrete forced mixer, the concrete prepared is injected the negative die installing Steel Reinforcement Cage by feeding hopper;
F, upper mold section and negative die to be closed up, die bolt is screwed and puts in place;
G, carry out prestress stretching by the Steel Reinforcement Cage after jack pair matched moulds, be stretched to the numerical value meeting national standard;
H, mould lifting machine good for prestressed stretch-draw is winched to high speed rotating on centrifugation apparatus; Process is as follows: winch to above whizzer by the band mould centrifugal pile after above-mentioned stretch-draw anchor, and accelerate step by step by the centrifugal system of initial velocity, middling speed, high speed, high speed, centrifugation time is 30min.
I, the pulp-water in mould is toppled over out;
J, mould is winched in curing pool together with concrete pile, carry out vapor cure; Detailed process is as follows: winch in atmospheric steam curing pond by the band mould centrifugal pile after centrifugal forming, quietly stops 1h, is slowly warming up to 110 DEG C, maintenance 2h under normal pressure; Then the offcenter squared pile after the demoulding is entered autoclave again and carry out high temperature steam curing, temperature is 160 DEG C, and saturated vapour pressure is 1.5Mpa, curing time 5h;
K, mould to be taken apart, two in same mould or branched precast concrete pile are carried out stripping operation, removes intermediate joint device, be transported to a stockyard by the dolly in Chu Zhuan district, then carry out next step cyclic production.
Embodiment 2
Raw material is taken by following weight:
Gelling material 100 parts, fine aggregate 20 parts, coarse aggregate 100 parts, water reducer 5 parts and 100 parts, water; Described gelling material is made up of following weight parts proportioning raw material: cement 5 parts, 30 parts, levigate sand, 10 parts, flyash and Starso 5 parts.
The preparation technology of precast reinforced concrete piles, concrete steps are as follows:
A, select the main muscle of prestress and spiral bar, adopt automatic welding machine processing and fabricating precast concrete pile cages;
B, ready two or more Steel Reinforcement Cage is loaded onto end plate after, joined end to end by intermediate joint device and connect, in yi word pattern;
C, precast concrete pile die is taken apart as upper and lower half module; To be winched to by upper mold section with lifting machine on the clean-up frame in patrix clearing zone, the two or more Steel Reinforcement Cages simultaneously connected by step b winch in negative die, then load onto precast concrete pile end plate at the two ends of mould, anchor sheet, stretch board, stretching support board;
D, the mode of multiple spot lifting is adopted to winch on flat-bed trailer by lifting machine the negative die installing Steel Reinforcement Cage;
E, take each raw material by above-mentioned weight, make fresh concrete with concrete forced mixer, the concrete prepared is injected the negative die installing Steel Reinforcement Cage by feeding hopper;
F, upper mold section and negative die to be closed up, die bolt is screwed and puts in place;
G, carry out prestress stretching by the Steel Reinforcement Cage after jack pair matched moulds, be stretched to the numerical value meeting national standard;
H, mould lifting machine good for prestressed stretch-draw is winched to high speed rotating on centrifugation apparatus; Process is as follows: winch to above whizzer by the band mould centrifugal pile after above-mentioned stretch-draw anchor, and accelerate step by step by the centrifugal system of initial velocity, middling speed, high speed, high speed, centrifugation time is 30min.
I, the pulp-water in mould is toppled over out;
J, mould is winched in curing pool together with concrete pile, carry out vapor cure; Detailed process is as follows: winch in atmospheric steam curing pond by the band mould centrifugal pile after centrifugal forming, quietly stops 2h, is slowly warming up to 105 DEG C, maintenance 3h under normal pressure; Then the offcenter squared pile after the demoulding is entered autoclave again and carry out high temperature steam curing, temperature is 170 DEG C, and saturated vapour pressure is 1.5Mpa, curing time 6h;
K, mould to be taken apart, two in same mould or branched precast concrete pile are carried out stripping operation, removes intermediate joint device, be transported to a stockyard by the dolly in Chu Zhuan district, then carry out next step cyclic production.
Embodiment 3
Raw material is taken by following weight:
Gelling material 90 parts, fine aggregate 30 parts, coarse aggregate 30 parts, water reducer 10 parts and 200 parts, water; Described gelling material is made up of following weight parts proportioning raw material: cement 10 parts, 10 parts, levigate sand, 15 parts, flyash and Starso 3 parts.
The preparation technology of precast reinforced concrete piles, concrete steps are as follows:
A, select the main muscle of prestress and spiral bar, adopt automatic welding machine processing and fabricating precast concrete pile cages;
B, ready two or more Steel Reinforcement Cage is loaded onto end plate after, joined end to end by intermediate joint device and connect, in yi word pattern;
C, precast concrete pile die is taken apart as upper and lower half module; To be winched to by upper mold section with lifting machine on the clean-up frame in patrix clearing zone, the two or more Steel Reinforcement Cages simultaneously connected by step b winch in negative die, then load onto precast concrete pile end plate at the two ends of mould, anchor sheet, stretch board, stretching support board;
D, the mode of multiple spot lifting is adopted to winch on flat-bed trailer by lifting machine the negative die installing Steel Reinforcement Cage;
E, take each raw material by above-mentioned weight, make fresh concrete with concrete forced mixer, the concrete prepared is injected the negative die installing Steel Reinforcement Cage by feeding hopper;
F, upper mold section and negative die to be closed up, die bolt is screwed and puts in place;
G, carry out prestress stretching by the Steel Reinforcement Cage after jack pair matched moulds, be stretched to the numerical value meeting national standard;
H, mould lifting machine good for prestressed stretch-draw is winched to high speed rotating on centrifugation apparatus; Process is as follows: winch to above whizzer by the band mould centrifugal pile after above-mentioned stretch-draw anchor, and accelerate step by step by the centrifugal system of initial velocity, middling speed, high speed, high speed, centrifugation time is 30min.
I, the pulp-water in mould is toppled over out;
J, mould is winched in curing pool together with concrete pile, carry out vapor cure; Detailed process is as follows: winch in atmospheric steam curing pond by the band mould centrifugal pile after centrifugal forming, quietly stops 2h, is slowly warming up to 108 DEG C, maintenance 2.5h under normal pressure; Then the offcenter squared pile after the demoulding is entered autoclave again and carry out high temperature steam curing, temperature is 165 DEG C, and saturated vapour pressure is 1.5Mpa, curing time 5h;
K, mould to be taken apart, two in same mould or branched precast concrete pile are carried out stripping operation, removes intermediate joint device, be transported to a stockyard by the dolly in Chu Zhuan district, then carry out next step cyclic production.
Claims (6)
1. the preparation technology of a precast reinforced concrete piles, it is characterized in that comprising the following steps: make Steel Reinforcement Cage, Steel Reinforcement Cage is put into precast concrete pile die, concrete is injected in mould, mould is inserted on centrifugation apparatus and carry out centrifugal rotation, carry out vapor cure at curing pool, the demoulding is also taken out shaping; Described precast concrete pile die is the long mould of more than 25 meters, a mould can produce branched precast concrete pile simultaneously, on mould, negative die transport is in process of production that described centrifugation apparatus, curing pool are laterally arranged in parallel perpendicular to factory building crane beam axis direction laterally to move in parallel perpendicular to factory building crane beam axis direction; Described concrete is made up of following weight parts raw material: gelling material 80-100 part, fine aggregate 20-30 part, coarse aggregate 30-100 part, water reducer 5-10 part and water 100-200 part; Described gelling material is made up of following weight parts proportioning raw material: cement 5-10 part, levigate sand 10-30 part, flyash 10-15 part and Starso 3-5 part.
2. the preparation technology of a kind of precast reinforced concrete piles according to claim 1, is characterized in that, described concrete is made up of following weight parts raw material: gelling material 80 parts, fine aggregate 25 parts, coarse aggregate 50 parts, water reducer 6 parts and 150 parts, water; Described gelling material is made up of following weight parts proportioning raw material: cement 6 parts, 15 parts, levigate sand, 12 parts, flyash and Starso 3 parts.
3. the preparation technology of a kind of precast reinforced concrete piles according to claim 1, is characterized in that specifically comprising:
A, select the main muscle of prestress and spiral bar, adopt automatic welding machine processing and fabricating precast concrete pile cages;
B, ready two or more Steel Reinforcement Cage is loaded onto end plate after, joined end to end by intermediate joint device and connect, in yi word pattern;
C, precast concrete pile die is taken apart as upper and lower half module; To be winched to by upper mold section with lifting machine on the clean-up frame in patrix clearing zone, the two or more Steel Reinforcement Cages simultaneously connected by step b winch in negative die, then load onto precast concrete pile end plate at the two ends of mould, anchor sheet, stretch board, stretching support board;
D, the negative die installing Steel Reinforcement Cage is winched on flat-bed trailer by lifting machine;
E, take each raw material by above-mentioned weight, make fresh concrete with concrete forced mixer, the concrete prepared is injected the negative die installing Steel Reinforcement Cage by feeding hopper;
F, upper mold section and negative die to be closed up, die bolt is screwed and puts in place;
G, carry out prestress stretching by the Steel Reinforcement Cage after jack pair matched moulds, be stretched to the numerical value meeting national standard;
H, mould lifting machine good for prestressed stretch-draw is winched to high speed rotating on centrifugation apparatus;
I, the pulp-water in mould is toppled over out;
J, mould is winched in curing pool together with concrete pile, carry out vapor cure;
K, mould to be taken apart, two in same mould or branched precast concrete pile are carried out stripping operation, removes intermediate joint device, be transported to a stockyard by the dolly in Chu Zhuan district, then carry out next step cyclic production.
4. the preparation technology of a kind of precast reinforced concrete piles according to claim 3, is characterized in that described lifting machine is when handling mould and Steel Reinforcement Cage, adopts the mode of multiple spot lifting, to coordinate the long mould of precast concrete pile.
5. the preparation technology of a kind of precast reinforced concrete piles according to claim 3, it is characterized in that, in step h, rotating centrifugal process is as follows: winch to above whizzer by the band mould centrifugal pile after above-mentioned stretch-draw anchor, accelerate step by step by the centrifugal system of initial velocity, middling speed, high speed, high speed, centrifugation time is 20 ~ 30min.
6. the preparation technology of a kind of precast reinforced concrete piles according to claim 3, it is characterized in that, in step j, vapor cure process is as follows: winch in atmospheric steam curing pond by the band mould centrifugal pile after centrifugal forming, quietly stop 1 ~ 2h, slowly be warming up to 105 ~ 110 DEG C, maintenance 2 ~ 3h under normal pressure; Then the offcenter squared pile after the demoulding is entered autoclave again and carry out high temperature steam curing, temperature is 160 ~ 170 DEG C, and saturated vapour pressure is 1.5Mpa, curing time 5 ~ 6h.
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| CN201310676716.9A CN104710155A (en) | 2013-12-12 | 2013-12-12 | Production technology of precast reinforced concrete piles |
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| CN201310676716.9A CN104710155A (en) | 2013-12-12 | 2013-12-12 | Production technology of precast reinforced concrete piles |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598568A (en) * | 2015-12-31 | 2016-05-25 | 青岛昊河水泥制品有限责任公司 | Reinforcement skeleton roll welding machine, reinforcement skeleton production method and square pile production method |
| CN106340415A (en) * | 2016-08-31 | 2017-01-18 | 苏州达方电子有限公司 | Light emitting keyboard |
| CN109227920A (en) * | 2018-07-10 | 2019-01-18 | 俞向阳 | Centrifugal concrete pile production line |
| CN109227885A (en) * | 2018-11-14 | 2019-01-18 | 汤始建华建材(天津)有限公司 | A kind of prefabricated hollow square pile system of processing and processing technology |
| CN109676783A (en) * | 2018-12-29 | 2019-04-26 | 威海中恒管桩有限公司 | A kind of fixed die station prestressed concrete square pile production line and production technology |
| CN110218061A (en) * | 2019-04-12 | 2019-09-10 | 扬州邗江中科南工建设工程与信息化研究中心 | A kind of prefabricated magnesia carbonization stake concrete and its application |
| CN115256626A (en) * | 2022-08-01 | 2022-11-01 | 宁夏中隆管桩有限公司 | Production device and method of photovoltaic tubular pile |
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2013
- 2013-12-12 CN CN201310676716.9A patent/CN104710155A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105598568A (en) * | 2015-12-31 | 2016-05-25 | 青岛昊河水泥制品有限责任公司 | Reinforcement skeleton roll welding machine, reinforcement skeleton production method and square pile production method |
| CN105598568B (en) * | 2015-12-31 | 2017-11-14 | 青岛昊河水泥制品有限责任公司 | Reinforced bar skeleton seam welder, Making of reinforcement cage method and square pile preparation method |
| CN106340415A (en) * | 2016-08-31 | 2017-01-18 | 苏州达方电子有限公司 | Light emitting keyboard |
| CN106340415B (en) * | 2016-08-31 | 2019-11-05 | 苏州达方电子有限公司 | Illuminated keyboard |
| CN109227920A (en) * | 2018-07-10 | 2019-01-18 | 俞向阳 | Centrifugal concrete pile production line |
| CN109227885A (en) * | 2018-11-14 | 2019-01-18 | 汤始建华建材(天津)有限公司 | A kind of prefabricated hollow square pile system of processing and processing technology |
| CN109227885B (en) * | 2018-11-14 | 2024-03-08 | 汤始建华建材(天津)有限公司 | Prefabricated hollow square pile machining system and machining process |
| CN109676783A (en) * | 2018-12-29 | 2019-04-26 | 威海中恒管桩有限公司 | A kind of fixed die station prestressed concrete square pile production line and production technology |
| CN110218061A (en) * | 2019-04-12 | 2019-09-10 | 扬州邗江中科南工建设工程与信息化研究中心 | A kind of prefabricated magnesia carbonization stake concrete and its application |
| CN115256626A (en) * | 2022-08-01 | 2022-11-01 | 宁夏中隆管桩有限公司 | Production device and method of photovoltaic tubular pile |
| CN115256626B (en) * | 2022-08-01 | 2024-07-19 | 宁夏中隆管桩有限公司 | Production device and method for photovoltaic tubular pile |
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Application publication date: 20150617 |