CN101660314A - Construction method for foundation of exposed concrete equipment - Google Patents
Construction method for foundation of exposed concrete equipment Download PDFInfo
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- CN101660314A CN101660314A CN200910153031A CN200910153031A CN101660314A CN 101660314 A CN101660314 A CN 101660314A CN 200910153031 A CN200910153031 A CN 200910153031A CN 200910153031 A CN200910153031 A CN 200910153031A CN 101660314 A CN101660314 A CN 101660314A
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Abstract
The invention discloses a construction method for a foundation of an exposed concrete equipment, which comprises the steps of: manufacturing and finishing templates by processing and preparing nine splints into a plurality of standard and non-standard templates after calculating and designing; adopting a lacquer putty to implement blowing, pointing, repairing and leveling the surfaces of the templates, then coating phenolic resin paint on the surface; jointing the templates; mounting a cement system and embedded parts; preparing and casting the exposed concrete by mixing cement, sand, water and stone, preparing the mixture into exposed concrete for casting and then adopting a bar measuring method to check the slice height after casting; and maintaining the exposed concrete by pouring enough curing water on the surface of the exposed concrete after dismounting the templates, then coating or covering a plastic film, and lashing on the outside to form a sealed space. The construction method for the foundation of the exposed concrete equipment accomplishes the cement construction at one time, which eliminates the common quality failures generated during the common construction of concrete, has high construction speed and novel technique, leads the exposed concrete construction technology to be further mature, and can be broadly applied.
Description
Technical field
The present invention relates to technical field of civil engineering, especially be applicable to the Equipment Foundations concrete component, wall column beam etc. has and does not whitewash the construction method for foundation of exposed concrete equipment that requires concrete component.
Background technology
At present in industrial construction, generally all a large amount of Equipment Foundations can be arranged, the construction of employing ordinary concrete, but there is voids and pits in the surface of concrete structure majority, the truncation arrisdefect, common common quality defect phenomenons such as form joint imprecision, this phenomenon is because concrete composition is complicated, harden into and be subjected to easily in the forming process such as workability, denseness, Vibration Technology, curing condition, time of setting etc. many factors influence, so any one link in the concrete construction is dealt with improperly, the final quality of concrete work be will influence, workmanship defective or accident caused.
Clear-water concrete claims ornamental concrete again, gains the name because of it has decorative effect, and it belongs to one-time cast-forming, does not do any outer decoration, and the natural surface effect that directly adopts cast-in-situ concrete is as facing, so it is different from ordinary concrete.But because clear-water concrete is very high to construction process requirement, be in particular in: must shake and smash evenly, construction temperature requires very strict.And in China, every construction technology of clear-water concrete still is in developing stage, belongs to emerging construction technology, and the unit that really grasps the design of this type of building and construction is few.The decorative effect that the clear-water concrete metope is final, the quality and the formwork erection quality that depend on concreting, therefore, clear-water concrete is a kind of great challenge to the building operations level, and how a kind of good clear-water concrete structure equipment construction worker method is provided also is a technical barrier of engineering construction.
Summary of the invention
Problem to be solved by this invention is exactly the deficiency that exists on the existing concrete construction technology, a kind of construction method for foundation of exposed concrete equipment is provided, improve surface of concrete structure fineness, reduce whitewashing and repairing of concrete component external surface, accelerate speed of application, reduce spillage of material, reduce construction cost.
To achieve these goals, the present invention adopts following technical scheme: construction method for foundation of exposed concrete equipment is characterized in that comprising the steps:
(1) standard and off-gauge some templates are processed, are mixed with to the making of template, finishing after nine clamping plate are designed as calculated; Template surface adopt putty criticize to scrape, fill out embedding repair smooth after again brushing phenolic resin lacquer carry out clad can, the finish of enhancing template;
(2) assembled formwork uses connector and anchor clamps assembly unit successively with some templates, and with filling out face putty between side template, the brushing seal lac;
(3) installation of reinforcing bar system and built-in fitting is fixed on reinforcing bar on the template by securing member, buries built-in fitting on template underground;
(4) configuration of clear-water concrete and cast, cement, sand, water, stone are mixedly configured into clear-water concrete and pour into a mould, the cast back adopts the measuring staff method to check lift height, after treating that the first floor concrete vibrating is closely knit, utilize the measuring staff inspection till concrete surface is level and no longer remarkable sinking and produces bubble, build second layer concrete again;
(5) maintenance of clear-water concrete behind the stripping, is watered on the clear-water concrete surface and to be spilt enough curing waters, and parcel or covered with plastic film externally lash then, forms one and seals close space.
Further, formulated by oil varnish and land plaster at the putty described in the step (1), a blade coating thickness is at 0.5 ~ 1mm.
Further, the template that one side is installed earlier in step (2) is also fixing, insertion is used to connect the template of opposite side to wearing bolt and PVC sleeve pipe, two templates of corner use L shaped batten line to fix, form the structure of shaping type between some templates, the recycling rate of waterused height has increased the number of turnover, has reduced the loss of template and flitch.
Further, after step (3) reinforcement installation, set up the operation backing plate, and pad is set below the reinforcing bar welding position protects, avoid welding slag burn template to cause just face pit of concrete, influence concrete presentation quality.
Preferably, the concrete cover between reinforcing bar and concrete surface adopts the finished product plastic cushion, and employing roller type plastic cushion suitable for reading then adopts the buckle-type plastic cushion in the middle part on basis on the basis.
Preferably, adding has II level flyash in the clear-water concrete in step (4).
Preferably, in step (4), also can add an amount of air entraining agent.
Further, for to be as the criterion by the concrete thickness in monolayer, brush marker line one every this concrete thickness in monolayer in measuring staff method described in the step (5) again, measuring staff stands upright in the concrete during measurement, and the length of test leakage bar is checked lift height in addition.
Advantage of the present invention: construction of the present invention is finished concrete construction is disposable, eliminated the common quality defect that is produced in the conventional construction of concrete, strengthened the concrete surface impression quality, the disposable payment in basis is installed, accelerated construction speed, novel worker's law technology impels the dry concrete construction technology further ripe and can extensive use; This worker method is compared with conventional concrete construction method, has avoided concrete patch work, owing to adopt the shaping type template, the recycling rate of waterused height has increased the number of turnover, has reduced the loss of template and flitch; Concrete admixture admixture effectively reduces cement consumption; This worker method has effectively been avoided common common quality defect phenomenons such as surface of concrete structure voids and pits, truncation arrisdefect, compare with similar technical level, this worker method has all proposed higher requirement in construction reference, quality control, have the higher technical requirements of advanced construction technology.
Description of drawings
The present invention is further illustrated below in conjunction with accompanying drawing:
Fig. 1 is worker's method flow chart of the present invention;
Fig. 2 is formwork erection figure of the present invention;
Fig. 3 is the node schematic diagram of PVC sleeve pipe of the present invention;
Fig. 4 is the schematic diagram of template fastening point among the present invention;
Fig. 5 is the fixedly schematic diagram of built-in fitting among the present invention;
Fig. 6 is the structural representation of template of the present invention corner.
The specific embodiment
As shown in Figure 1, worker's method of the present invention has specifically comprised following steps:
(1) making of template, finishing: process, be mixed with standard and off-gauge some templates after nine clamping plate are designed as calculated, after template construct is finished, cleaning template template surface and polishing, adopt putty criticize to scrape, fill out embedding to repair to brush twice phenolic resin lacquer again after smooth and carry out clad can, the finish of enhancing template.
Extremely shown in Figure 6 as Fig. 2, (2) assembled formwork: the template 4 that a side is installed earlier, some templates 4 are spliced successively, and diagonal brace is installed is fixed, on this side template 4, insert wearing bolt 1 and PVC sleeve pipe 3, also need further to clear up the foreign material in the template 4, the template 4 that opposite side is installed according to previous mounting method afterwards, with the template 4 of both sides being connected, and use securing member to fix to wearing bolt 1 and PVC sleeve pipe 3.Fill out face putty 5 with 4 of side templates, the brushing seal lac.4 of adjacent two templates are installed L shaped batten line 8, and the batten line can adopt wire nail to follow closely on template 4, guarantees that basic external corner is an arc, make 4 structures that form shaping type of template, and the recycling rate of waterused height has increased the number of turnover, has reduced the loss of template 4 and flitch.
(3) installation of reinforcing bar system and built-in fitting: it is dilatory that the reinforcement installation process is forbidden on template 4, in order to avoid damage template 4.Use chevron folder 6 and nut with template 4 fixed-type after, should set up the operation backing plate, forbid to trample; The welding job of all reinforcing bars 2 and installation exercise must be made pad with metal sheet roof covering and protect below the electric welding position, in order to avoid welding slag burn template 4 causes the concrete surface pit, and influence Surface Quality of Concrete; Concrete cover between reinforcing bar 2 and concrete surface adopts the finished product plastic cushion, and employing roller type plastic cushion suitable for reading then adopts the buckle-type plastic cushion in the middle part on basis on the basis.When the facade built-in fitting is buried underground, mark built-in fitting 7 positions earlier on the template 4 for preparing, hole on the same position of ironware and module, built-in fitting 7 mantle fibers are anchored on template 4 surfaces with bolt with built-in fitting 7.During form removal, the template of dismantling earlier 4 exterior nut caps, after template 4 was removed, the embedded iron parts face was promptly concordant with surface of concrete structure, had both cleaned attractive in appearancely, was convenient to next step construction again.
(4) configuration of clear-water concrete and cast: concrete configuration all adopts the cement of uniform brand to mix stirring with stone, water and sand, and cobble-stone diameter guarantees that at 5～31.5mm sand adopts medium coarse sand; But at the II of concrete mix admixture 15% level flyash, if large-scale Equipment Foundations, air-entrained agent in right amount also in the concrete.Finishing the cast back adopts the measuring staff method to check lift height, be as the criterion with the concrete thickness in monolayer, measuring staff then every this thickness in monolayer brush red or blue marker line together, stands upright in the concrete during measurement, the length of test leakage bar is checked lift height in addition, and lift height should meet the demands; After treating that the first floor concrete vibrating is closely knit, utilize the measuring staff inspection till concrete surface is level and no longer remarkable sinking and produces bubble, build second layer concrete again.
(5) maintenance of clear-water concrete: behind the stripping 4, water on the clear-water concrete surface and to spill enough curing waters, parcel or covered with plastic film externally lash then, form one and seal close space.Because of the needs curing water, before concreting, just should will supply water to be responsible for insert the construction area appropriate location, guarantee the concreting maintenance of sprinkling water continuously in 12 hours, curing time is no less than 14 days.In whole construction course, during template 4 table brushing phenolic resin coatings, the processing space planted agent opens the door and windows, and summer, the indoor exhaust fan that is provided with strengthened circulation of air, prevented that the constructor poisons.
This worker of the present invention method is compared with conventional concrete construction method, clear-water concrete tensile strength height, and good endurance has been avoided concrete patch work; Adopt steel pipe reinforcement system and matched clamp to fix, make intensity, rigidity and stability that template 4 systems reach to be needed; Because adopt shaping type template 4, the recycling rate of waterused height has increased the number of turnover, has reduced the loss of template 4 and flitch; Concrete admixture admixture effectively reduces cement consumption.Can draw from subordinate list 1, whole worker's method flow process is saved 18.42 yuan/m3 of cost altogether.
With reference to subordinate list 1 conventional worker's method and the comparison of worker's method of the present invention on cost, with 30 yuan on nine clamping plate/open, 260 yuan/ton of cement, 110 yuan/ton in flyash, artificial 40 yuan/work day be standard, unit: unit/m3.
Subordinate list 1
| Sequence number | Project | Conventional construction consumption | Adopt consumption after worker's method of the present invention | The construction cost per square meter increase and decrease |
| ??1 | |
??12.9 | ??13.5 | ??+0.6 |
| ??2 | Cement consumption | ??100.38 | ??90.34 | ??-10.04 |
| ??3 | Flyash is used | ??0 | ??6.02 | ??+6.02 |
| ??4 | Renewal expense | ??15 | ??0 | ??-15 |
| Add up to | ??128.28 | ??109.86 | ??-18.42 |
Claims (8)
1, construction method for foundation of exposed concrete equipment is characterized in that comprising the steps:
1) standard and off-gauge some templates are processed, are mixed with to the making of template, finishing after nine clamping plate are designed as calculated; Template (4) surface adopt putty (5) criticize to scrape, fill out embedding repair smooth after again brushing phenolic resin lacquer carry out clad can, the finish of enhancing template (4);
2) assembled formwork uses connector and anchor clamps assembly unit successively with some templates (4), and fills out face putty (5), brushing seal lac between same side template (4);
3) installation of reinforcing bar system and built-in fitting is fixed on reinforcing bar (2) on the template (4) by securing member, buries built-in fitting (7) on template (4) underground;
4) configuration of clear-water concrete and cast, cement, sand, water, stone are mixedly configured into clear-water concrete and pour into a mould, the cast back adopts the measuring staff method to check lift height, after treating that the first floor concrete vibrating is closely knit, utilize the measuring staff inspection till concrete surface is level and no longer remarkable sinking and produces bubble, build second layer concrete again;
5) maintenance of clear-water concrete behind the stripping, is watered on the clear-water concrete surface and to be spilt enough curing waters, and parcel or covered with plastic film externally lash then, forms one and seals close space.
2, construction method for foundation of exposed concrete equipment according to claim 1 is characterized in that: the putty described in the step 1) (5) is formulated by oil varnish and land plaster, and a blade coating thickness is at 0.5 ~ 1mm.
3, construction method for foundation of exposed concrete equipment according to claim 1, it is characterized in that: step 2) in the template (4) of a side and fixing is installed earlier, insertion is used to connect the template (4) of opposite side to wearing bolt (1) and PVC sleeve pipe (3), two templates (4) of corner use L shaped batten line (8) fixing, form the structure of shaping type between some templates (4).
4, construction method for foundation of exposed concrete equipment according to claim 1 is characterized in that: after step 3) reinforcing bar (2) is installed, set up the operation backing plate, and in the below of reinforcing bar (2) welding position pad is set and protects.
5, according to claim 1 or 4 described construction method for foundation of exposed concrete equipment; it is characterized in that: the concrete cover between reinforcing bar (2) and concrete surface adopts the finished product plastic cushion; employing roller type plastic cushion suitable for reading then adopts the buckle-type plastic cushion in the middle part on basis on the basis.
6, construction method for foundation of exposed concrete equipment according to claim 1 is characterized in that: add II level flyash when the clear-water concrete in the step 4) disposes.
7, according to claim 1 or 6 described construction method for foundation of exposed concrete equipment, it is characterized in that: add an amount of air entraining agent when the clear-water concrete in the step 4) disposes.
8, construction method for foundation of exposed concrete equipment according to claim 1, it is characterized in that: the method for measuring staff described in the step 5) is for to be as the criterion by the concrete thickness in monolayer, brush marker line one every this concrete thickness in monolayer again, measuring staff stands upright in the concrete during measurement, and the length of test leakage bar is checked lift height in addition.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910153031A CN101660314A (en) | 2009-09-28 | 2009-09-28 | Construction method for foundation of exposed concrete equipment |
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| CN200910153031A CN101660314A (en) | 2009-09-28 | 2009-09-28 | Construction method for foundation of exposed concrete equipment |
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| CN101660314A true CN101660314A (en) | 2010-03-03 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774216A (en) * | 2010-03-11 | 2010-07-14 | 广东省长大公路工程有限公司 | Method for improving apparent mass of clear concrete by utilizing wood fiber paster |
| CN101786291A (en) * | 2010-03-11 | 2010-07-28 | 广东省长大公路工程有限公司 | Method for enhancing exposed concrete apparent quality by adoption of PVC films |
| CN102619328A (en) * | 2012-03-22 | 2012-08-01 | 中冶天工上海十三冶建设有限公司 | Tool type mounting clamp for ring beam mold plates and lintel mold plates |
| CN103817778A (en) * | 2014-02-26 | 2014-05-28 | 中天建设集团有限公司 | Construction method for prefabricating bare concrete member |
| CN108265746A (en) * | 2017-12-28 | 2018-07-10 | 中国能源建设集团天津电力建设有限公司 | A kind of method of back-grouting in Equipment Foundations work progress |
| CN108301613A (en) * | 2017-11-23 | 2018-07-20 | 宁波建工建乐工程有限公司 | A method of manufacture clear-water concrete plank sheathing |
| CN108612233A (en) * | 2018-04-03 | 2018-10-02 | 贵州建工集团第建筑工程有限责任公司 | A kind of cast-in-place fair-faced concrete wall construction method |
| CN108661068A (en) * | 2018-06-22 | 2018-10-16 | 中国五冶集团有限公司 | A kind of Equipment Foundations formwork structure and reinforcement means |
| CN109868923A (en) * | 2019-03-11 | 2019-06-11 | 深圳市建工集团股份有限公司 | One kind, which dissipates, spells plank sheathing exposed concrete construction method |
-
2009
- 2009-09-28 CN CN200910153031A patent/CN101660314A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101786291B (en) * | 2010-03-11 | 2013-05-15 | 广东省长大公路工程有限公司 | Method for enhancing exposed concrete apparent quality by adoption of PVC films |
| CN101786291A (en) * | 2010-03-11 | 2010-07-28 | 广东省长大公路工程有限公司 | Method for enhancing exposed concrete apparent quality by adoption of PVC films |
| CN101774216A (en) * | 2010-03-11 | 2010-07-14 | 广东省长大公路工程有限公司 | Method for improving apparent mass of clear concrete by utilizing wood fiber paster |
| CN101774216B (en) * | 2010-03-11 | 2012-08-08 | 广东省长大公路工程有限公司 | Method for improving apparent mass of clear concrete by utilizing wood fiber paster |
| CN102619328B (en) * | 2012-03-22 | 2015-07-22 | 中冶天工上海十三冶建设有限公司 | Tool type mounting clamp for ring beam mold plates and lintel mold plates |
| CN102619328A (en) * | 2012-03-22 | 2012-08-01 | 中冶天工上海十三冶建设有限公司 | Tool type mounting clamp for ring beam mold plates and lintel mold plates |
| CN103817778A (en) * | 2014-02-26 | 2014-05-28 | 中天建设集团有限公司 | Construction method for prefabricating bare concrete member |
| CN103817778B (en) * | 2014-02-26 | 2016-09-07 | 中天建设集团有限公司 | Prefabricated fair-faced concrete component construction method |
| CN108301613A (en) * | 2017-11-23 | 2018-07-20 | 宁波建工建乐工程有限公司 | A method of manufacture clear-water concrete plank sheathing |
| CN108265746A (en) * | 2017-12-28 | 2018-07-10 | 中国能源建设集团天津电力建设有限公司 | A kind of method of back-grouting in Equipment Foundations work progress |
| CN108612233A (en) * | 2018-04-03 | 2018-10-02 | 贵州建工集团第建筑工程有限责任公司 | A kind of cast-in-place fair-faced concrete wall construction method |
| CN108612233B (en) * | 2018-04-03 | 2020-05-05 | 贵州建工集团第一建筑工程有限责任公司 | Construction method of cast-in-situ facing clear concrete wall |
| CN108661068A (en) * | 2018-06-22 | 2018-10-16 | 中国五冶集团有限公司 | A kind of Equipment Foundations formwork structure and reinforcement means |
| CN109868923A (en) * | 2019-03-11 | 2019-06-11 | 深圳市建工集团股份有限公司 | One kind, which dissipates, spells plank sheathing exposed concrete construction method |
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Open date: 20100303 |