CN104074294A - Concrete structure solid floor filling body, and manufacturing method and application of concrete structure solid floor filling body - Google Patents
Concrete structure solid floor filling body, and manufacturing method and application of concrete structure solid floor filling body Download PDFInfo
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- CN104074294A CN104074294A CN201410278536.XA CN201410278536A CN104074294A CN 104074294 A CN104074294 A CN 104074294A CN 201410278536 A CN201410278536 A CN 201410278536A CN 104074294 A CN104074294 A CN 104074294A
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- concrete
- concrete structure
- obturator
- filling body
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Abstract
The invention provides a concrete structure solid floor filling body, and a manufacturing method and application of the concrete structure solid floor filling body. Foamed cement or foamed glass or foamed ceramics or foamed plaster is used as the concrete structure solid floor filling body. Filling body-concrete foam combined materials and raw concrete materials are adopted and combined to be used for building structures; the self weight of the structure can be reduced; the concrete internal structure can be improved; the concrete hydration heat is reduced; the concrete cracking is reduced; and the durability of a concrete structure is improved.
Description
Technical field
The present invention relates to solid superstructure obturator of a kind of concrete structure and preparation method thereof and application.
Background technology
At present, the dead load of constructional materials accounts for the more than 70% of built-loading, as the floor of horizontal member, accounts for again the more than 70% of construction weight.The intensity of current architecture configuration material, safety, durability improve by improving concrete strength, and this just requires to improve concrete intensity and meets, and cement strength is required more and more higher, causes the crack problem of concrete structure more and more serious.The one-sided thinking that improves concrete strength has been difficult to possible, how to alleviate dead load, thereby reaches the developing direction that material high-strength light must be building structure.
Cast-in-place concrete hollow building roof in the market, is mainly used two large class obturators: the one, inorganic material class, adopts enhancement glass fiber cement, is made into difform thin-wall barrel and thin-wall box body; The 2nd, organic material class, the obturator that (on market more be) adopts polyphenyl piece or polyphenyl foam to be made.
One, adopt inorganic material, wall thickness is inhomogeneous, and breakage rate is high, cracky when transportation and construction fluid concrete, concrete directly penetrates in damaged thin-wall box body, can not play hollow effect, increase the load of former project organization, caused workmanship to have potential safety hazard.Thin-wall box body (cylindrical shell) is made of cement composite material, makes cost by hand also quite high; Also need in work progress, increase to solve support, isolation, drift, cushion block, rapid wear, matter heavy, on the series of problems such as bottom flange control etc. and the invisible cost that produces.Manual production, does not realize suitability for industrialized production, and the requirement that can not guarantee supply, affects construction speed.Thin-wall box body (cylindrical shell) supply of material difficulty, job site is stacked and is taken a large amount of construction areas, to execution control, makes troubles.
Two, adopt polyphenyl foam organic material
,temperature surpasses 70 ℃ will produce toxic gas, when superstructure is used and constructs, can produce fire safety problem, not reach fire-fighting requirement, have a strong impact on workmanship and deposit potential safety hazard in use, belong to poisonous polluted product.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes the deficiencies in the prior art, provides a kind of and can alleviate deadweight, solid superstructure obturator of concrete structure that fireproof performance is good and preparation method thereof and application.
The technical scheme that the present invention solves its technical problem employing is, the present invention's the solid superstructure obturator of concrete structure, adopts foam cement or foamed glass, foamed ceramic, foaming plaster as the solid superstructure obturator of concrete structure (utilize foam cement that prior art makes or foamed glass, foamed ceramic, foaming plaster can).
The solid superstructure obturator of described concrete structure appearance can be the shapes such as square, cuboid, cylinder, circle, Ling Zhu or icicle body.
The solid superstructure obturator of described concrete structure internal construction can be foam concrete entity or assembly.
The making of the present invention's the solid superstructure obturator of concrete structure, its primary raw material is:
1, cementitious material: mainly use portland cement, or glass, pottery, gypsum;
2, blowing agent: select the conventional blowing agent in market;
3, gather materials: can select the lightweight aggregates such as flyash, slag micropowder, perlite, foam beads or cenosphere;
4, additive: according to circumstances add the Admixtures such as foam stabiliser, accelerator for cement slurry, water reducing agent.
The preparation method of the present invention's the solid superstructure obturator of concrete structure, comprises the following steps:
(1) two kinds of patterns of foam concrete filling block moulding: chemical reaction foaming and physical mixed foaming;
(2) adopt self-replication parent assembling die: this mould is using a plurality of in type obturators as parent template, and between each obturator, cavity of moulding, takes quarantine measures, and continuous placing, is finished product after the demoulding.Former a small amount of mould can adopt steel plate, plank, plastic plate or the self-control of the gang form between them.
Described chemical blowing: foam generated concrete idiosome in several seconds, standing maintenance, concrete steps are as follows:
1, cement, foaming pulvis or aqua, admixture and various Admixture mix, and make foam concrete slip;
2, by the product of foam concrete slip casting mould, moulding, excision forming different size;
3, by the product of foam concrete slip casting mould, moulding, combination forming different size.
4, by the product of foam concrete slip casting mould, moulding, cutting, combination forming different size.
The making of the present invention's the solid superstructure obturator of concrete structure, its primary raw material is preferably:
(described foam stabilizer, reinforcing agent, waterproof agent are all the conventional auxiliary agents in affiliated field, and described fiber is used for gaining in strength, and can depend on actual need to add; The granularity fineness specific area>=4000m of described slag superfine powder
2/ kg).
Described physical blowing:
1, batching slurrying, by cement, admixture and various Admixture, adds mixer by charging equipment, makes cement paste;
2, foaming agent water solution is made to the fine even foam of 2mm, and foam is mixed with cement paste, make foam concrete slip;
3, adopt the small-sized assembling die of multi-cavity; This mould is separated into several little die cavitys by a large die cavity, and block of each cavity forming, is finished product after the demoulding, does not need cutting; Foam concrete material embryo is invaded in mould, make it surperficial closely knit moulding;
4, curing time: in 6～8 hours summers, in 2～3 days winters, can dispatch from the factory after the demoulding.
Installation technology
The sequence of construction of the present invention's the solid superstructure of Cast-in-place concrete obturator is:
Measure unwrapping wire → set up mould pin support system-→ soffit formwork → snap the line in template is installed; determine the installation site of core, the good line of ink marker → colligation of the position of baseplate reinforcing bar and steel pipe buried in advance bullet baseplate reinforcing bar, arrange cushion block of concrete bar protective layer → preheating embedding line → colligation in length and breadth the reinforced mesh of rib → bottom layer of the reinforcing steel check and accept → install, fixedly obturator → colligation surfacing steel bar, carry out the built on stilts sidewalk of set aside pre-embedded → erection construction, the carrier pipe → disturbing concrete → concrete curing of installation concrete, form removal.
Lay obturator, according to the difference of anti-floating mode, take following binding method:
At each obturator, from end, use obturator and template are connected by iron wire or dedicated fastener or through template together with flitch below, the colligation of frame pipe, colligation is wanted firmly.
The present invention utilizes the obturator of the building structural materials (comprising horizontal member and vertical member) of (cement) material foaming technique production lightweight and some strength, become the 7th ingredient of concrete material, (1 water, 2 Admixtures, 3 superfine powders, 4 cement, 5 sands, 6 stones, 7 obturators) make our existing building structural materials rise a step again, reach the object of constructional materials high-strength light, friendly interface, energy-conserving and environment-protective.
The present invention adopts obturator-concrete foam combined material and former concrete material to combine for building structure, can alleviate dead load, improves concrete inner structure, reduces hydration heat of concrete, reduces concrete cracking, improves the durability of concrete structure.
The present invention adopts inorganic material foaming technique, can make low-density, high strength, high-air-tightness, the fabulous concrete foam-filled body of heat insulation effect, foaming aperture 1-3mm, all pore sizes are even, obturator (comprising entity, cavity, assembly) unit weight 180-250kg/m
3, lighter more than 10 times than former concrete density, thus dead load is reduced greatly, improve structure stress, reduce foundation load, reduce material usage, reducing the construction costs, reach energy-conserving and environment-protective, the object of sustainable development.
Accompanying drawing explanation
Fig. 1 is the present invention's obturator job site figure.
The specific embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment 1
The solid superstructure obturator of concrete structure of the present embodiment, adopts foam cement as the solid superstructure obturator of concrete structure.
The solid superstructure obturator of described concrete structure appearance is square.
The solid superstructure obturator of described concrete structure internal construction is foam concrete entity.
The preparation method of the solid superstructure obturator of concrete structure of the present embodiment, comprises the following steps:
(1) two kinds of patterns of foam concrete filling block moulding: chemical reaction foaming and physical mixed foaming;
(2) adopt self-replication parent assembling die: this mould is using a plurality of in type obturators as parent template, and between each obturator, cavity of moulding, takes quarantine measures, and continuous placing, is finished product after the demoulding.Former a small amount of mould can adopt steel plate, plank, plastic plate or assembly self-control.
Described chemical blowing: foam generated concrete idiosome in several seconds, standing maintenance, concrete steps are as follows:
1, cement, foaming pulvis, admixture and various Admixture mix, and chemical reaction foaming and physical mixed foaming, make foam concrete slip;
2, by the product of foam concrete slip casting mould, moulding, excision forming different size;
3, by the product of foam concrete slip casting mould, moulding, combination forming different size.
Described physical blowing:
1, batching slurrying, by cement, admixture and various Admixture, adds mixer by charging equipment, makes cement paste;
2, foaming agent water solution is made to the fine even foam of 2mm, and foam is mixed with cement paste, make foam concrete slip;
3, adopt the small-sized assembling die of multi-cavity; This mould is separated into several little die cavitys by a large die cavity, and block of each cavity forming, is finished product after the demoulding, does not need cutting; Foam concrete material embryo is invaded in mould, make it surperficial closely knit moulding;
4, curing time: in 6～8 hours summers, in 2～3 days winters, can dispatch from the factory after the demoulding.
Installation technology
The sequence of construction of the solid superstructure of Cast-in-place concrete obturator of the present embodiment is:
Measure unwrapping wire → set up mould pin support system-→ soffit formwork → snap the line in template is installed; determine the installation site of core, the good line of ink marker → colligation of the position of baseplate reinforcing bar and steel pipe buried in advance bullet baseplate reinforcing bar, arrange cushion block of concrete bar protective layer → preheating embedding line → colligation in length and breadth the reinforced mesh of rib → bottom layer of the reinforcing steel check and accept → install, fixedly obturator → colligation surfacing steel bar, carry out the built on stilts sidewalk of set aside pre-embedded → erection construction, the carrier pipe → disturbing concrete → concrete curing of installation concrete, form removal.
Lay obturator, according to the difference of anti-floating mode, take following binding method:
At each obturator, from two ends (1/3 place 14# iron wire), obturator and template are connected by dedicated fastener or together with below flitch, the colligation of frame pipe, it is firm that colligation is wanted.
The present embodiment adopts cement foamed technology, can make low-density, high strength, high-air-tightness, the fabulous cement foamed obturator of heat insulation effect, foaming aperture 1-3mm, all pore sizes are even, obturator (comprising entity, cavity, assembly) unit weight 200kg/m
3, lighter more than 10 times than former concrete density, thus dead load is reduced greatly, improve structure stress, reduce foundation load, reduce material usage, reducing the construction costs, reach energy-conserving and environment-protective, the object of sustainable development.
Adopt solid superstructure obturator and the prior art of the present embodiment to adopt the difference of hollow building cover as shown in the table:
| title | hollow building cover | entity superstructure |
| quality assurance | wall thickness is inhomogeneous, and breakage rate is high, and concrete directly penetrates in damaged thin-wall box body, can not play hollow effect, has increased the load of former project organization, causes workmanship to have potential safety hazard. | entity does not have hollow, and indices reaches relevant national standard requirement.Can not cause increasing structural load because of breakage. |
| cost | thin-wall box body (cylindrical shell) is made of cement composite material, makes cost by hand mutually high; In work progress, also to increase support, isolation, drift, cushion block, on the invisible cost brought of the series of problems such as bottom flange control. | industrialization degree is high, constant product quality, and solid installation component is convenient, has solved the series of problems such as support, isolation, drift, cushion block, the control of upper bottom flange |
| toxic gas | organic material, superstructure fire safety problem, fire safety problem during construction all can not solve, and does not reach fire-fighting requirement, and polyphenyl foam temperature surpasses 70 ℃ will produce toxic gas. | inorganic material, silicate product, nontoxic, the environmental protection of not burning, belongs to A level fire proofing material |
| execution control | make by hand, supply of material difficulty, job site is stacked and is taken a large amount of construction areas, has hidden fire-fighting danger, and it is inconvenient to execution control, to come | suitability for industrialized production, transportation range is short, accounts for construction plant area little, supplies guaranteed |
Claims (5)
1. the solid superstructure obturator of concrete structure, is characterized in that, adopts foam cement or foamed glass, foamed ceramic, foaming plaster as the solid superstructure obturator of concrete structure.
2. the solid superstructure obturator of concrete structure according to claim 1, is characterized in that, the solid superstructure obturator of described concrete structure appearance is square, cuboid, cylinder, circle, Ling Zhu or icicle body.
3. the solid superstructure obturator of concrete structure according to claim 1 and 2, is characterized in that, the solid superstructure obturator of described concrete structure internal construction is foam concrete entity or assembly.
4. a method of preparing the solid superstructure obturator of concrete structure as described in one of claim 1-3, is characterized in that, comprises the following steps:
(1) two kinds of patterns of foam concrete filling block moulding: chemical reaction foaming and physical mixed foaming;
(2) adopt self-replication parent assembling die.
5. the application of the solid superstructure obturator of concrete structure as described in one of claim 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410278536.XA CN104074294A (en) | 2014-06-20 | 2014-06-20 | Concrete structure solid floor filling body, and manufacturing method and application of concrete structure solid floor filling body |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410278536.XA CN104074294A (en) | 2014-06-20 | 2014-06-20 | Concrete structure solid floor filling body, and manufacturing method and application of concrete structure solid floor filling body |
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| CN104074294A true CN104074294A (en) | 2014-10-01 |
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| CN201410278536.XA Pending CN104074294A (en) | 2014-06-20 | 2014-06-20 | Concrete structure solid floor filling body, and manufacturing method and application of concrete structure solid floor filling body |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019050476A1 (en) * | 2017-09-08 | 2019-03-14 | Dragages Singapore Pte Ltd | Apparatus for displacing a volume of concrete in a concrete slab |
| CN113700025A (en) * | 2021-07-22 | 2021-11-26 | 浙江省天正设计工程有限公司 | Cast-in-place hollow floor cover type storage tank leveling foundation arranged in fan shape and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000038710A (en) * | 1998-07-22 | 2000-02-08 | Ishikawajima Constr Materials Co Ltd | Structure of concrete floor slab |
| CN1548672A (en) * | 2003-05-06 | 2004-11-24 | 邱则有 | In-situ cast concrete board |
| CN102134890A (en) * | 2011-01-19 | 2011-07-27 | 栾文彬 | Production method of composite box used for filling hollow floor |
| CN202577705U (en) * | 2011-12-26 | 2012-12-05 | 周立成 | Casing for cast-in-situ concrete filling |
| CN102912913A (en) * | 2011-12-26 | 2013-02-06 | 周立成 | Cast-in-place concrete filling tire body |
-
2014
- 2014-06-20 CN CN201410278536.XA patent/CN104074294A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000038710A (en) * | 1998-07-22 | 2000-02-08 | Ishikawajima Constr Materials Co Ltd | Structure of concrete floor slab |
| CN1548672A (en) * | 2003-05-06 | 2004-11-24 | 邱则有 | In-situ cast concrete board |
| CN102134890A (en) * | 2011-01-19 | 2011-07-27 | 栾文彬 | Production method of composite box used for filling hollow floor |
| CN202577705U (en) * | 2011-12-26 | 2012-12-05 | 周立成 | Casing for cast-in-situ concrete filling |
| CN102912913A (en) * | 2011-12-26 | 2013-02-06 | 周立成 | Cast-in-place concrete filling tire body |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019050476A1 (en) * | 2017-09-08 | 2019-03-14 | Dragages Singapore Pte Ltd | Apparatus for displacing a volume of concrete in a concrete slab |
| CN113700025A (en) * | 2021-07-22 | 2021-11-26 | 浙江省天正设计工程有限公司 | Cast-in-place hollow floor cover type storage tank leveling foundation arranged in fan shape and construction method thereof |
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Application publication date: 20141001 |
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