CN1219954C - Light cast-in-situs concrete wallboard - Google Patents

Light cast-in-situs concrete wallboard Download PDF

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Publication number
CN1219954C
CN1219954C CNB031197256A CN03119725A CN1219954C CN 1219954 C CN1219954 C CN 1219954C CN B031197256 A CNB031197256 A CN B031197256A CN 03119725 A CN03119725 A CN 03119725A CN 1219954 C CN1219954 C CN 1219954C
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China
Prior art keywords
wallboard
cast
cement
water
concrete panel
Prior art date
Application number
CNB031197256A
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Chinese (zh)
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CN1530501A (en
Inventor
张英保
Original Assignee
张英保
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Priority to CNB031197256A priority Critical patent/CN1219954C/en
Publication of CN1530501A publication Critical patent/CN1530501A/en
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Publication of CN1219954C publication Critical patent/CN1219954C/en

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Classifications

    • 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
    • C04B28/02—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 containing hydraulic cements other than calcium sulfates
    • 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
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/34—Non-shrinking or non-cracking materials
    • C04B2111/343—Crack resistant materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The present invention relates to a cast-in-situ lightweight concrete wallboard, which comprises a wallboard main body and a steel bar welding net arranged in the wallboard main body, wherein components of the material of the wallboard main body comprise water, cement, fly ash, slag micro powder, silicon powder, a composite high efficiency water reducing agent, polypropylene fibre, glass fibre grid cloth or alkali-proof plated plastic glass fibre short cutting yarn, modified cement polymer emulsion or modified cement polymer dry powder latex, ceramic granules, ceramic sand and medium sand. The cast-in-situ lightweight concrete wallboard has the advantages of light weight, high strength, low shrinkage ratio, small deformation, no cracks, water resistance and fire prevention, and the connection with load bearing components is firm. The present invention reduces the integration cost of construction.

Description

The cast-in-place light concrete panel

Technical field

The present invention relates to a kind of constructional materials, particularly a kind of cast-in-place lightweight thin-lift concrete wallboard.

Background technology

In recent years, eliminated gradually because clay solid brick is disabled, thereby the novel construction material of many kinds occurred, especially the application of light weight concrete construction is promoted the use of.And that the light weight concrete construction wallboard generally has is prefabricated with cast-in-place, and prefabricated light weight concrete construction wallboard adopts batch production production, on-site consolidation, production technology is comparatively complicated, and production equipment is had relatively high expectations, and cost of production is higher, the on-the-spot installation easily produces slab-joint cracking, cause infiltration, influence construction quality and life-span, prefabricated panel is comparatively complicated with being connected of supporting member, the insulation layer setting is easy to generate heat bridge, causes heat insulation function to descend; Minority adopts the cast-in-place light concrete panel, and cracking, distortion appear in wallboard itself easily, and wallboard easily produces the crack with the supporting member place of combining, and causes infiltration, and external thermal insulation is difficult for being provided with.

Summary of the invention

The objective of the invention is to overcome the shortcoming of above-mentioned various wallboards, provide a kind of lightweight, high-strength, shrinkage factor is low, distortion is little, do not ftracture, waterproof, fire prevention, be connected firmly with supporting member, and reduce the cast-in-place light concrete panel of building integral cost.

For achieving the above object, cast-in-place light concrete panel of the present invention comprises the wallboard body and places its inner reinforcing bar weldering net, and the weight proportion of each component of described wallboard bulk material is as follows, calculates by every cubic metre of mixture:

Water: 200～250kg/m 3,

Cement: portland cement, 200～300kg/m 3,

Admixture: wherein, flyash: 100～250kg/m 3,

Slag micropowder: 0～200kg/m 3,

Silica flour: 0～30kg/m 3,

Water reducing agent: 5～10kg/m 3,

Polypropylene fibre: 0.5～2kg/m 3,

Glass chopped yarn: 0～4kg/m is moulded in fiberglass gridding cloth or alkaline-resisting plating 3,

Modified cement fluoropolymer resin emulsion or modified cement polymer dry powder latex: 0～10kg/m 3,

Haydite: 300～500kg/m 3,

Pottery sand: 200～400kg/m 3,

Medium sand: 0～400kg/m 3

Wherein, the weight ratio of water and cementitious material is 0.35～0.5, and cementitious material is the summation of cement and admixture.

Cast-in-place light concrete panel of the present invention, wherein, the weight of each component of described wallboard bulk material is as follows, calculates by every cubic metre of mixture:

Water: 200kg/m 3,

Cement: portland cement, 250kg/m 3,

Admixture: wherein, flyash: 150kg/m 3,

Slag micropowder: 80kg/m 3,

Silica flour: 20kg/m 3,

Water reducing agent: 8kg/m 3,

Polypropylene fibre: 1kg/m 3,

Glass chopped yarn: 2kg/m is moulded in alkaline-resisting plating 3,

Modified cement fluoropolymer resin emulsion or modified cement polymer dry powder latex: 5kg/m 3,

Haydite: 400kg/m 3,

Pottery sand: 300kg/m 3,

Medium sand: 100kg/m 3,

Wherein, the weight ratio of water and cementitious material is 0.4.

The cast-in-place cast-in-place light concrete panel that the present invention is cast-in-place, wherein, described cement is 32.5# portland cement or 42.5# portland cement or 42.5# Portland cement.

Cast-in-place light concrete panel of the present invention, wherein, described reinforcing bar weldering net is one deck or two-layer.

Cast-in-place light concrete panel of the present invention, wherein, the thickness of wallboard body is 30～100mm.

Cast-in-place light concrete panel of the present invention, it has following advantage:

1, lightweight, high-strength: average cube density is 1400～1800kg/m 3, wallboard thickness is 40～80mm, centre plane density is less than 90kg/m 3, alleviated constuction loads greatly; Because wallboard contains reinforcing bar weldering net, reinforcing bar weldering net and supporting member weld together, and make being connected firmly of wallboard and supporting member durable, and the overall structure anti-seismic performance is higher.Wallboard compressive strength is more than the 10Mpa, and rupture strength is more than the 3000N, and impact resistance is not have more than 50 times to damage, and these intensity indexs all meet or exceed national standard.

2, good stability: shrinkage factor is lower, does not ftracture, and is out of shape little.

3, the scope of application is extensive: can with the cast-in-place connections of multiple structural system such as frame light structure, frame construction, steel work, supporting use.

4, high insulating effect, satisfy the energy-conservation requirement of higher buildings: can be cast in by cast-in-place with warming plate, constitute the very low combined wall board exterior wall enclosure structure of thermal transmittance, not have heat bridge to produce, heat insulation effect is remarkable, can satisfy the requirement of code of building energy efficiency.

5, reduce building costs: because the body of wall attenuation is compared with existing architectural structure system, can save constructional materials more than 60%, can reduce construction cost more than 20%.

6, meet the strategy of sustainable development, build sustainable development type dwelling house: utilize a large amount of industrial wastes, save a large amount of buildings and resources, energy conservation consumption.

The specific embodiment

Below in conjunction with embodiment in detail the present invention is described in detail.

Embodiment 1:

Cast-in-place light concrete panel of the present invention comprises wallboard body and one deck reinforcing bar of being placed in one weldering net, and the weight optimum value of each component of making the wallboard body is as follows, in one cubic metre of amount of the mixture:

Water: 200kg/m 3,

Cement: 42.5# portland cement, 250kg/m 3,

Admixture: wherein, flyash: 150kg/m 3,

Slag micropowder: 80kg/m 3,

Silica flour: 20kg/m 3,

Water reducing agent: 8kg/m 3,

Polypropylene fibre (PPY): 1kg/m 3,

Glass chopped yarn: 2kg/m is moulded in alkaline-resisting plating 3,

Modified cement fluoropolymer resin emulsion: 5kg/m 3,

Haydite: 400kg/m 3,

Pottery sand: 300kg/m 3,

Medium sand: 100kg/m 3,

Wherein, the weight ratio of water and cementitious material is 0.4.

Above-mentioned each component of light weight concrete construction wallboard of making is all on sale on the market.

Its manufacturing process is as follows: pottery sand, haydite, the medium sand of above-mentioned weight are added forced mixer, and spray adds 1/3 of water inventory, stirs; After 120 seconds, add cement, flyash, slag micropowder, silica flour, polypropylene fibre (PPY) continuation stirring successively; After 120 seconds, add remaining water successively, add modified cement fluoropolymer resin emulsion, contain the alkaline-resisting plating of zirconium and mould glass chopped yarn, continue to stir; After 360 seconds, add composite superplasticizer, it is standby to stir after 10 minutes discharging.

The Hanging bolt welding of reinforcing bar being welded net and supporting member fixes, and press the design thickness mounting template, and is with scene system of mixing and standby light weight concrete construction, mechanical or be pumped to cast-in-place position, cast-in-site wallboard; Adopt the small-sized vibrator of 250 model, high frequent jolt ramming is to guarantee the compactness of cast-in-situ concrete; Behind the casting complete, the cast-in-place light concrete panel is carried out strict maintenance.After the maintenance moulding, make the thick wallboard of 30～100mm, can meet or exceed the requirement of national standard every index of concrete panel.

Embodiment 2

Cast-in-place light concrete panel of the present invention comprises the wallboard body and reinforcing bar weldering net that the two-layer interval that is placed in one is provided with, and the weight of each component of making the wallboard body is as follows, in one cubic metre of amount of the mixture:

Water: 250kg/m 3,

Cement: 32.5# portland cement, 300kg/m 3,

Admixture: wherein, flyash: 150kg/m 3,

Slag micropowder: 50kg/m 3,

Water reducing agent: 5kg/m 3,

Polypropylene fibre (PPY): 2kg/m 3,

Glass chopped yarn: 1kg/m is moulded in alkaline-resisting plating 3,

Haydite: 500kg/m 3,

Pottery sand: 400kg/m 3,

Medium sand: 100kg/m 3

Wherein, the weight ratio of water and cementitious material is 0.5.

Above-mentioned each component of light weight concrete construction wallboard of making is all on sale on the market.

The manufacturing process of wallboard is with embodiment 1.After the maintenance moulding, make the thick wallboard of 30～100mm, can meet or exceed the requirement of national standard every index of concrete panel.

Embodiment 3

Cast-in-place light concrete panel of the present invention comprises wallboard body and the reinforcing bar that is placed in one weldering net, and the weight of each component of making the wallboard body is as follows, in one cubic metre of amount of the mixture:

Water: 200kg/m 3,

Cement: 42.5# Portland cement, 250kg/m 3,

Admixture: wherein, flyash: 150kg/m 3,

Silica flour: 30kg/m 3,

Water reducing agent: 10kg/m 3,

Polypropylene fibre (PPY): 0.5kg/m 3,

Fiberglass gridding cloth: 1kg/m 3,

Modified cement polymer dry powder latex: 10kg/m 3,

Haydite: 400kg/m 3,

Pottery sand: 400kg/m 3

Above-mentioned each component of light weight concrete construction wallboard of making is all on sale on the market.

The manufacturing process of wallboard is with embodiment 1.After the maintenance moulding, make the thick wallboard of 30～100mm, can meet or exceed the requirement of national standard every index of concrete panel.

Through actual test, the technical performance index of cast-in-place light concrete panel of the present invention such as following table (wallboard thickness is 50mm): Performance National standard requires (JG/T3029-1995) Measured value Surface density, kg/m2 ????≤80 ??80 Compressive strength MPa ????/ ??10Mpa Rupture strength N ????2200N ??3500N Impact resistance, inferior ????≥5 Do not have for 10 times and damage The single-point hanging force, N ????≥800 ??1600N Drying shrinkage value mm/m ????≤0.8 ??0.4mm/m The freeze-thawing resistant circulation, inferior ????/ No. 50 no changes Coefficient of thermal conductivity ????/ ??0.5W/MK Combustibility, level ????A ??A

Cast-in-place light concrete panel of the present invention can be according to utility model and the invention " architectural exterior-protecting construction " that the applicant applied in actual application, and application number is 03204733.9 and 03105233.9 patent application, is built into architectural exterior-protecting construction.That is, Hanging bolt outwards is vertically fixed on the supporting member, reinforcing bar is welded net be vertically welded on the Hanging bolt by design attitude, reinforcing bar weldering net welds between the net with reinforcing bar and docks welding; Press design wallboard thickness mounting template in reinforcing bar weldering net both sides, inner formword adopts the polystyrene foam plastics warming plate EPS plate (expansion type) or the XPS plate (extrusion type) that are suspended on the Hanging bolt to serve as, after installing template, press the manufacturing process fluid concrete wallboard of embodiment, after the moulding, warming plate is cast in the light weight concrete construction wallboard, and during mounting template, inner and outer template all can adopt warming plate to serve as before the cast light weight concrete construction.In actual applications, also can adopt fixedly reinforcing bar weldering net of alternate manner,, then warming plate can be installed, and adopt two common templates to pour into a mould wallboard in as warm as spring place of the four seasons, China south.

Cast-in-place light concrete panel of the present invention can be used as the wallboard that constitutes external wall plate, inner wall panel, roof panel, floor etc. and other each position, and the reinforcing bar weldering net and the supporting member that include by wallboard link together.

Claims (5)

1. cast-in-place light concrete panel is characterized in that: comprise the wallboard body and place its inner reinforcing bar weldering net, the weight proportion of each component of described wallboard bulk material is as follows, calculates by every cubic metre of mixture:
Water: 200～250kg/m 3,
Portland cement: 200～300kg/m 3,
Admixture: wherein, flyash: 100～250kg/m 3,
Slag micropowder: 0～200kg/m 3,
Silica flour: 0～30kg/m 3,
Water reducing agent: 5～10kg/m 3,
Polypropylene fibre: 0.5～2kg/m 3,
Glass chopped yarn: 0～4kg/m is moulded in fiberglass gridding cloth or alkaline-resisting plating 3,
Modified cement fluoropolymer resin emulsion or modified cement polymer dry powder latex: 0～10kg/m 3,
Haydite: 300～500kg/m 3,
Pottery sand: 200～400kg/m 3,
Medium sand: 0～400kg/m 3
Wherein, the weight ratio of water and cementitious material is 0.35～0.5, and cementitious material is the summation of cement and admixture.
2. cast-in-place light concrete panel as claimed in claim 1 is characterized in that: the weight proportion of each component of described wallboard bulk material is as follows, calculates by every cubic metre of mixture:
Water: 200kg/m 3,
Portland cement: 250kg/m 3,
Admixture: wherein, flyash: 150kg/m 3,
Slag micropowder: 80kg/m 3,
Silica flour: 20kg/m 3,
Water reducing agent: 8kg/m 3,
Polypropylene fibre: 1kg/m 3,
Glass chopped yarn: 2kg/m is moulded in alkaline-resisting plating 3,
Modified cement fluoropolymer resin emulsion or modified cement polymer dry powder latex: 5kg/m 3,
Haydite: 400kg/m 3,
Pottery sand: 300kg/m 3,
Medium sand: 100kg/m 3,
Wherein, the weight ratio of water and cementitious material is 0.4.
3. cast-in-place light concrete panel as claimed in claim 1 or 2 is characterized in that: described portland cement is 32.5# portland cement or 42.5# portland cement or 42.5# Portland cement.
4. cast-in-place light concrete panel as claimed in claim 3 is characterized in that: described reinforcing bar weldering net is one deck or two-layer.
5. cast-in-place light concrete panel as claimed in claim 4 is characterized in that: the thickness of wallboard body is 30～100mm.
CNB031197256A 2003-03-10 2003-03-10 Light cast-in-situs concrete wallboard CN1219954C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB031197256A CN1219954C (en) 2003-03-10 2003-03-10 Light cast-in-situs concrete wallboard

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB031197256A CN1219954C (en) 2003-03-10 2003-03-10 Light cast-in-situs concrete wallboard

Publications (2)

Publication Number Publication Date
CN1530501A CN1530501A (en) 2004-09-22
CN1219954C true CN1219954C (en) 2005-09-21

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104557124A (en) * 2015-01-16 2015-04-29 广东建星建筑工程有限公司 Novel light anti-crack concrete and preparation method thereof

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