CN1530501A - Light cast-in-situs concrete wallboard - Google Patents

Light cast-in-situs concrete wallboard Download PDF

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Publication number
CN1530501A
CN1530501A CNA031197256A CN03119725A CN1530501A CN 1530501 A CN1530501 A CN 1530501A CN A031197256 A CNA031197256 A CN A031197256A CN 03119725 A CN03119725 A CN 03119725A CN 1530501 A CN1530501 A CN 1530501A
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Prior art keywords
cement
cast
water
wallboard
concrete panel
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CNA031197256A
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CN1219954C (en
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张英保
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    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Finishing Walls (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

A light concrete wall slab cast in-situ is composed of main body and welded reinforcing steel bar net in said main body. Said main body is made up of water, cement, powdered coal ash, slag powder, silicon powder, efficient composite water-reducing agent, polypropylene fibres, glass fibre fabric or alkali-resistant plastic-coated glass staple, modified cement polymer emulsion (or powder), haydite, and sand. Its advantages are light weight, high strength, low shrinkage, not deforming and cracking, and low cost.

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/m 2 ????≤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,
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.
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,
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.
3. cast-in-place light concrete panel as claimed in claim 1 or 2 is characterized in that: described 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 Expired - Fee Related CN1219954C (en)

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Application Number Priority Date Filing Date Title
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CN1530501A true CN1530501A (en) 2004-09-22
CN1219954C CN1219954C (en) 2005-09-21

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CN1320229C (en) * 2005-01-07 2007-06-06 项宏疆 Light-duty high-strength fabric cement fly ash construction wallboard and complete set equipment for making same
CN100366570C (en) * 2005-03-22 2008-02-06 夏曙光 Efficient waterproof composite material
CN100375731C (en) * 2005-07-04 2008-03-19 上海宝钢冶金建设公司 GRC product made of using slag as aggregate
CN100424031C (en) * 2006-01-24 2008-10-08 上海市建筑构件制品有限公司 High compact bidirectionally adjustable concrete and its uses
CN100501100C (en) * 2007-05-19 2009-06-17 贾镠平 High strength light wall plate
CN101705732A (en) * 2009-09-30 2010-05-12 吴跃平 Lightweight ceramisite concrete external wallboard and preparation method thereof
CN101705733A (en) * 2009-09-30 2010-05-12 吴跃平 Lightweight ceramisite concrete external wallboard and preparation method thereof
CN101864828A (en) * 2010-07-07 2010-10-20 吴钜晓 Wall surface energy-saving decorative board and manufacturing method thereof
CN1920176B (en) * 2005-08-23 2010-11-03 深圳海川工程科技有限公司 Deck installation structure of big-span steel bridge
CN101713236B (en) * 2009-11-30 2011-03-02 陈兆平 Light and high-strength wallboard made from fiber reinforced concrete and preparation method thereof
CN102161581A (en) * 2010-09-13 2011-08-24 李子现 Light wall material produced on site
CN102477780A (en) * 2010-11-26 2012-05-30 深圳市嘉达高科产业发展有限公司 Light combined wall of building, wallboard and slurry
CN102503329A (en) * 2011-10-13 2012-06-20 林学华 Fire-proof, heat-insulating and moisture-proof building decorative panel made from slag rock wool
CN101936052B (en) * 2009-06-29 2012-08-22 上海盈创装饰设计工程有限公司 High-performance glass fiber reinforced cement board and pipelining manufacturing method thereof
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CN102976695A (en) * 2012-12-12 2013-03-20 黄耀宁 Elastic cement concrete furniture fitting and preparation method thereof
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CN100366570C (en) * 2005-03-22 2008-02-06 夏曙光 Efficient waterproof composite material
CN100375731C (en) * 2005-07-04 2008-03-19 上海宝钢冶金建设公司 GRC product made of using slag as aggregate
CN1920176B (en) * 2005-08-23 2010-11-03 深圳海川工程科技有限公司 Deck installation structure of big-span steel bridge
CN100424031C (en) * 2006-01-24 2008-10-08 上海市建筑构件制品有限公司 High compact bidirectionally adjustable concrete and its uses
CN100501100C (en) * 2007-05-19 2009-06-17 贾镠平 High strength light wall plate
CN101936052B (en) * 2009-06-29 2012-08-22 上海盈创装饰设计工程有限公司 High-performance glass fiber reinforced cement board and pipelining manufacturing method thereof
CN101705733A (en) * 2009-09-30 2010-05-12 吴跃平 Lightweight ceramisite concrete external wallboard and preparation method thereof
CN101705732A (en) * 2009-09-30 2010-05-12 吴跃平 Lightweight ceramisite concrete external wallboard and preparation method thereof
CN101713236B (en) * 2009-11-30 2011-03-02 陈兆平 Light and high-strength wallboard made from fiber reinforced concrete and preparation method thereof
CN101864828A (en) * 2010-07-07 2010-10-20 吴钜晓 Wall surface energy-saving decorative board and manufacturing method thereof
CN101864828B (en) * 2010-07-07 2012-10-31 吴钜晓 Wall surface energy-saving decorative board and manufacturing method thereof
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CN102477780A (en) * 2010-11-26 2012-05-30 深圳市嘉达高科产业发展有限公司 Light combined wall of building, wallboard and slurry
CN102503329A (en) * 2011-10-13 2012-06-20 林学华 Fire-proof, heat-insulating and moisture-proof building decorative panel made from slag rock wool
CN102503329B (en) * 2011-10-13 2013-12-04 林学华 Fire-proof, heat-insulating and moisture-proof building decorative panel made from slag rock wool
CN102795817A (en) * 2012-07-30 2012-11-28 温州大学 Plant fiber-ceramsite compound heat retaining building block
CN102795817B (en) * 2012-07-30 2014-07-30 温州大学 Plant fiber-ceramsite compound heat retaining building block
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