CN1244452A - Precast concrete component producing process including vibration, pressurizing and heat catalysis - Google Patents
Precast concrete component producing process including vibration, pressurizing and heat catalysis Download PDFInfo
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- CN1244452A CN1244452A CN 98113310 CN98113310A CN1244452A CN 1244452 A CN1244452 A CN 1244452A CN 98113310 CN98113310 CN 98113310 CN 98113310 A CN98113310 A CN 98113310A CN 1244452 A CN1244452 A CN 1244452A
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- concrete
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- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A special mold is made up, which has heater and vibrator installed in the form boards of the mold as well as hydraulic system installed on the top form board. Through simultaneous vibration, heating and pressurizing, the material inside the mold is made to harden and form fast. Precast concrete member produced with the present invention may contain reinforcing material or be of sandwiched structure with dense interior, smooth surface, esthetic appearance and high strength. The present invention makes it possible to realize immediate demolding for high turnover rate of the mold and low production cost.
Description
The present invention relates to civil engineering and building industry, belong to the manufacturing technology of precast concrete.
The production method of general common dry type precast concrete, be with the concrete adjustment to its degree of collapsing at 0mm, again concrete is put into mould, extrusion forming, the instant demoulding is given birth to indusium and is transferred to nature in the fog room or add steam curing to intensity that finished product required.This method is used for producing the little pure concrete component of volume, for example concrete brick, floor tile etc. more.The member of producing in this way, its disadvantage be exactly the air spots of member sliding and can not produce in the concrete component of stiffener is arranged, scantling is not more than 400mm.
The production method of common wet type precast concrete, can produce volume bigger member, its volume is decided on the ability of means of transport, the component surface of producing is smooth, component inside can be placed stiffener (as reinforcing bar etc.), but also flexible design of the shape of member.The building that utilizes this precast concrete to be assembled into, it is not inferior to cast-in-place concrete in quality, and speed of application is fast, and be easier to realize the building standardization and guarantee construction quality, be the developing direction of future architecture industry.
The production method of common wet type precast concrete, be concrete to be added water mix stirring and adjusting to the degree of collapsing of concrete situation greater than 0mm, again with concrete casting in the mould that places stiffener (for example reinforcing bar), and with electromagnetic shaker with concrete ram-jolt, eliminate the pore in the concrete as far as possible, increase the intensity of manufactured goods.Water and need leave standstill a period of time through the concrete of ram-jolt, finish up to concrete and to solidify, treat that concrete hardening just can remove mould after certain intensity (about 13.5MPa), time of repose is looked cement grade and early stage intensity as fixed, generally is approximately 12-14 hour.Time of repose is long more, and required mould and production site are just many more, therefore causes investment big, the production cost height, and the time of delivery is long.In order to shorten time of repose, people usually after concrete casting makes, in addition steam curing because improve the hydration reaction that temperature can accelerate concrete, sclerosis ahead of time, 36-70 ℃ the time, time of repose can shorten 6-9 hour as temperature.Produce concrete prefabricated element with said method, time of repose is generally more than 3-8 hour.
The production method that the purpose of this invention is to provide a kind of improved precast concrete, the precast concrete of producing in this way, its quality is the same with the prefabricated components that common damp process is produced, and meets the requirement of various buildings, smooth surface, then shorten the concrete production cycle greatly in the production, realize the instant demoulding, improve the utilization rate of mould, save the workshop, reduce investment outlay thereby reach, reduce production costs.
The present invention is achieved in that special a kind of mould, and this mould is made of end template, septate mode plate and top template, and heating element and electromagnetic shaker are installed on the template, and hydraulic system is installed in the outside of template.During operation, operate according to following order:
1, earlier four blocks of septate mode plates are pieced together on end template, formed a mould, mold bottom is put a base plate and is used for after the demoulding idiosome being transported to fog room;
2, coat releasing agent in the inboard of mould;
3, will place the stiffener in the prefabricated component to be placed in the interior correct position of mould;
4, the material that will make prefabricated component is sent in the mould, wipes off;
5, top template is placed on material in the mould above;
6, start the heating element and the electromagnetic shaker of all templates;
7, start oil hydraulic system on the template, gradually material in the mould is increased pressure;
8, keep vibrations, temperature, pressure certain hour, make that material in the mould is under pressure, shakes, and the comprehensive function of heat catalysis, closely knit, even, fast hydration coagulation forming;
9, heating element, electromagnetic shaker and the oil hydraulic system of turning off all templates;
10, remove top template and septate mode plate;
11, the concrete idiosome after the moulding is moved on to fog room reposefully together with base plate and do nature or steam curing;
12, will be transported to the job site through the precast concrete that maintenance reaches prescribed strength, assemble various buildings.
Make precast concrete with the present invention, can shorten Production Time greatly, the turnover rate, the number of molds that improve mould can significantly reduce, thereby manufacturing field also greatly reduces, reduce investment outlay, with the produced precast concrete of the present invention, can include stiffener and can make sandwich-type member, interior solid, smooth surface, good looking appearance, the intensity height is fit to the requirement on various buildings and the civil engineering.
The present invention is further illustrated with accompanying drawing below:
1-hydraulic system in the accompanying drawing, the 2-electromagnetic shaker, 3-septate mode plate, the 4-stiffener, the 5-material, 5-concrete idiosome, 6-locatees brick, 7-top template, 8-heating element, 9-end template, 10-base plate.
Make earlier template, template is divided (7) three kinds of end template (9), septate mode plate (3) and top templates, and electromagnetic shaker (2) is installed in the template built-in heater (8) and the outside, the outside installation hydraulic system (1) of top template (7).
During operation, operate according to following order:
1, earlier four blocks of septate mode plates (3) are pieced together on end template (9), and with pin locking, formed mould, mold bottom is put a base plate (10);
2, coat releasing agent in the inboard of mould;
3, with location brick (6) stiffener (4) is placed the interior correct position of mould;
4, the material that will be used to make precast concrete adds an amount of water and stirs;
5, the material that stirs is sent in the mould, operating period, material is wipeed off slightly with a scraper plate;
6, the work of defeated putting material is finished the back or in mould defeated putting material the time in mould, starts (2) one short time of electromagnetic shaker that place outside septate mode plate (3) and the end template (9), makes material (5) shake the corner location of all even arrival mould;
7, top template (7) is placed on material (5) in the mould above;
8, start the heating element (8) and the electromagnetic shaker (2) of template;
9, start the hydraulic system (1) that is coupled to above the top template (7), to the defeated plus-pressure of top template (7), make it be moved down into the preestablished limit position gradually;
10, keep mould vibrations, constant temperature, constant voltage certain hour (20-500 second), make the interior material (5) of mould be under pressure, shake, reach the comprehensive function of heat catalysis, fast hydration solidifies, and forms the concrete idiosome (5) closely knit, even, that certain intensity is arranged;
11, turn off heating element all on the template (8) and electromagnetic shaker (2);
12, remove top template (7);
13, remove septate mode plate (3);
14, the concrete idiosome (5) after the moulding is moved on to fog room reposefully together with base plate (10) and do nature or steam curing;
15, will be transported to the job site through the precast concrete that maintenance reaches prescribed strength, assemble various buildings.
Explain the present invention in detail with an example below.
Still elaborate to producing armored concrete road border area prefabricated component with reference to accompanying drawing.
Make end template (9), septate mode plate (3) and top template (7) earlier, the inner heating element (8) of installing of template, electromagnetic shaker (2) is installed in the outside, and hydraulic system (1) is installed in the outside of top template (7).
During operation, operate according to following order:
1, earlier four blocks of septate mode plates (3) are pieced together on end template (9), and with pin locking, formed mould, mold bottom is put a base plate (10);
2, coat releasing agent (water-based or oil-based release agent) in the inboard of mould;
3, with location brick (6) stiffener (reinforcing bar) (4) is placed the interior correct position (apart from mould 25mm) of mould;
4, half lies against the mould bottom with the surfacing (cement 5.3kg, fine aggregate 12kg, water 1.4kg) that stirs, wipes off;
5, the main material (stone 40kg, sea sand 16.3kg, cement 12.2kg, water 3.5kg) that stirs is sent in the horizontal tool;
6, with scraper plate material is wipeed off;
7, second half of the surfacing of remainder is tiled on the material of main part, and wipes off with scraper plate;
8, the heating element (8) with four side septate mode plates (3) and end template (9) starts, and makes it be warming up to 60-80 ℃;
9, the electromagnetic shaker (2) with four side septate mode plates (3) and end template (9) starts, and all electromagnetic shakers (2) is turned off after making the corner location of all even arrival mould of material vibrations;
10, top template (7) is placed on material (5) in the mould above;
11, start the heating element (8) of top template (7);
12, start the electromagnetic shaker (2) of all templates;
13, start the oil hydraulic system (1) that is coupled to above the top template (7), to the defeated plus-pressure of top template (7), top template (7) moves down oil hydraulic system (1) gradually;
14, oil hydraulic system (1) arrives 50 tons gradually to the pressurization of top template (7), and top template (7) has also arrived be scheduled to spacing simultaneously;
15, keep 50 tons of system pressures, temperature 60-80 ℃, continue vibrations 200 seconds;
16, the heating element (8) and the electromagnetic shaker (2) of all templates are turned off; Oil hydraulic system (1) begins decompression and rises top template (7);
17, septate mode plate (3) is removed;
18, the road border area concrete idiosome (5) after the moulding is transplanted on reposefully together with base plate (10) does steam curing (normal pressure 70-90 ℃) in the maintenance district;
19, after 24 hours, prefabricated component intensity reaches 15MPa.Road border area prefabricated component fitly is stacked on the paling plate, numbers, packs, puts in storage, wait and arrange to dispatch from the factory;
20, send base plate (10) back to molding workshop section.
Claims (1)
1, a kind of vibrations, pressurization, heat catalysis is handled the method for precast concrete, the material that will be used to make precast concrete earlier stirs, then material is put into a mould, through ram-jolt, condense, moulding, send the fog room maintenance to become product after the demoulding, mould is by end template (9), septate mode plate (3) and top template (7) are formed, it is characterized in that: end template (9), the inside of septate mode plate (3) or top template (7) is equipped with heater (8), end template (9), the outside of septate mode plate (3) or top template (7) is equipped with electromagnetic shaker (2), top template (7) is equipped with hydraulic system (1), electromagnetic shaker (2), heater (8) and hydraulic system (1) can be started simultaneously, and the material in the mould is being shaken, rapid condensation moulding under the acting in conjunction of pressurization and heat catalysis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98113310 CN1244452A (en) | 1998-08-10 | 1998-08-10 | Precast concrete component producing process including vibration, pressurizing and heat catalysis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98113310 CN1244452A (en) | 1998-08-10 | 1998-08-10 | Precast concrete component producing process including vibration, pressurizing and heat catalysis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1244452A true CN1244452A (en) | 2000-02-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98113310 Pending CN1244452A (en) | 1998-08-10 | 1998-08-10 | Precast concrete component producing process including vibration, pressurizing and heat catalysis |
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| Country | Link |
|---|---|
| CN (1) | CN1244452A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1888898B (en) * | 2005-06-30 | 2010-06-16 | 中国石油化工股份有限公司 | Cement paste antivibrating curing box |
| CN103419269A (en) * | 2013-07-18 | 2013-12-04 | 杭州博数土木工程技术有限公司 | Concrete closed under pressure casting and coagulating method |
| CN105773809A (en) * | 2014-12-22 | 2016-07-20 | 德州海天机电科技有限公司 | Fixed multi-functional overturning working mold table for prefabricated part molding |
| CN105984027A (en) * | 2015-03-02 | 2016-10-05 | 任丘市永基建筑安装工程有限公司 | Maintenance technology of carbon fiber tube for combination mold core |
| CN108214833A (en) * | 2018-02-05 | 2018-06-29 | 中建三局集团有限公司 | Concrete prefabricated element pressing shaping device and method |
| CN108908664A (en) * | 2018-07-09 | 2018-11-30 | 曲周县和盛新型建筑安装有限公司 | A kind of Vertical Combination die assembly |
-
1998
- 1998-08-10 CN CN 98113310 patent/CN1244452A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1888898B (en) * | 2005-06-30 | 2010-06-16 | 中国石油化工股份有限公司 | Cement paste antivibrating curing box |
| CN103419269A (en) * | 2013-07-18 | 2013-12-04 | 杭州博数土木工程技术有限公司 | Concrete closed under pressure casting and coagulating method |
| CN105773809A (en) * | 2014-12-22 | 2016-07-20 | 德州海天机电科技有限公司 | Fixed multi-functional overturning working mold table for prefabricated part molding |
| CN105773809B (en) * | 2014-12-22 | 2017-11-17 | 德州海天机电科技有限公司 | A kind of prefabricated components shaping fixed type multifunctional upset Working mould table |
| CN105984027A (en) * | 2015-03-02 | 2016-10-05 | 任丘市永基建筑安装工程有限公司 | Maintenance technology of carbon fiber tube for combination mold core |
| CN108214833A (en) * | 2018-02-05 | 2018-06-29 | 中建三局集团有限公司 | Concrete prefabricated element pressing shaping device and method |
| CN108908664A (en) * | 2018-07-09 | 2018-11-30 | 曲周县和盛新型建筑安装有限公司 | A kind of Vertical Combination die assembly |
| CN108908664B (en) * | 2018-07-09 | 2023-06-16 | 曲周县和盛新型建筑安装有限公司 | Vertical combined die assembly |
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