CN201835404U - Cast-in-situ foam concrete composite wall body - Google Patents

Cast-in-situ foam concrete composite wall body Download PDF

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Publication number
CN201835404U
CN201835404U CN2010205995367U CN201020599536U CN201835404U CN 201835404 U CN201835404 U CN 201835404U CN 2010205995367 U CN2010205995367 U CN 2010205995367U CN 201020599536 U CN201020599536 U CN 201020599536U CN 201835404 U CN201835404 U CN 201835404U
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concrete
cement pressure
cast
concrete frame
foam
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CN2010205995367U
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白丽
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白丽
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Abstract

The utility model provides a cast-in-situ foam concrete composite wall body which cancels such links as factory manufacturing, transporting and manual building, saves labor, time and energy, lowers cost and is environmentally-friendly. The cast-in-situ foam concrete composite wall body is composed of a high-intensity cement pressure front plate, a high-intensity cement pressure back plate, an upper fiber concrete frame, foam concrete, a concrete upright post keel and a lower fiber concrete frame, wherein the upper fiber concrete frame is connected with the lower fiber concrete frame by the concrete upright post keel, the high-intensity cement pressure front plate is connected with the outer side surfaces of the upper fiber concrete frame and the lower fiber concrete frame, and the high-intensity cement pressure back plate is connected with the inner side surfaces of the upper fiber concrete frame and the lower fiber concrete frame. The high-intensity cement pressure front plate and the high-intensity cement pressure back plate form a cavity body with the upper fiber concrete frame and the lower fiber concrete frame. The cast-in-situ foam concrete composite wall body has good integrity, can be cast into structures of various shapes and sizes, has good durability and fire resistance and requires low engineering and maintaining costs.

Description

Cast-in-site foam concrete combined wall
(1) technical field
The utility model relates to building construction technology, is exactly a kind of cast-in-site foam concrete combined wall specifically.
(2) background technology
Foam concrete normally is prepared into foam with mechanical means with the foaming agent aqueous solution, again foam is joined and contain in the slip that siliceous material, calcareous material, water and various Admixtures etc. form, through mixing a kind of porous material that stirring, moulding by casting, maintenance form.Owing to contain a large amount of blind bores crack in the foam concrete, make it have following good physical and mechanical property.
1, lightweight
The density of foam concrete is little, and density rating is generally 300-1800kg/m 3, the density rating of foam concrete commonly used is 300-1200kg/m 3, in recent years, density is 160kg/m 3Ultralight foam concrete also in construction work, obtained application.Because the density of foam concrete is little, in building structure such as the external and internal wall of building, aspect, flooring, column, adopt this kind material, generally can make the building deadweight reduce about 25%, some can reach the 30%-40% of works gross weight.And, for structural element, replace ordinary concrete as adopting foam concrete, can improve the bearing capacity of member.Therefore, in construction work, adopt foam concrete to have remarkable economic efficiency.
2, thermal and insulating performance is good
Owing to contain the tiny hole of a large amount of sealings in the foam concrete, therefore have good thermal property, promptly good thermal and insulating performance, this is that ordinary concrete is not available.Usually density rating is at 300-1200kg/m 3The foam concrete of scope, coefficient of thermal conductivity is between 0.08-0.3w/ (mk).Adopt foam concrete as building masonry wall and roofing materials, have good energy-saving effect.
3, the sound-proof refractory performance is good
Foam concrete genus polyporus material, so it also is a kind of good sound insulation materials can adopt this material as puigging at floor and the sound insulating panel of speedway, the top layer of underground structure etc. of building.Foam concrete is inorganic material, can not burn, thereby have good refractoriness, uses on building, can improve the fireproof performance of building.
The base stock of foam concrete is cement, lime, water, foam, on this basis some fillers of admixture, aggregate and Admixture.Filler and aggregate commonly used are: sand, flyash, haydite, stone fragment, expanded polystyrene, expanded perlite, benzene take off the gram fines, and Admixture commonly used is the same with ordinary concrete, are water reducing agent, waterproof agent, retarding agent, setting accelerator etc.
The production method of foam concrete has two kinds of wet mortar method and dry mortar methods.The wet mortar method normally stirs into mortar at concrete mixing plant with cement, sand and water etc., and be transported to the building site with the truck mixer car, the foam that to make separately again adds mortar, mixer is mixed foam and mortar thoroughly, then the foam concrete for preparing is injected pump truck conveying or on-the-spot directly construction.The dry mortar method is that each dry basis (cement, flyash etc.) is delivered to the job site by transportation in bulk or transmission system, dry basis and water is mix at the construction field (site), the foam that to make separately then adds mortar, and both are mix in homogenizer, is used for site operation then.
Recently, Japan adopts the albumen pledge to add the mixed foaming agent that an amount of cationic surfactant is made into, and adopts the technology of cast-in-place shaping, succeeds in developing the cast-in-place foamed concrete new technology.Altogether used foaming foam is to mix the cationic surfactant of 0.1%-5% and be made in protein, and cationic surfactant uses quaternary ammonium salt.Its preparation method has three kinds: a kind of is that water, albumen pledge, cationic surfactant are mixed, and, stirs preparation foam slurry, cast-in-place moulding in the cement slurry that reinjects through the foaming of blowing agent machine; A kind of is that water, albumen pledge, cationic surfactant are mixed, through the homogenizer foaming, and in the cement slurry that reinjects, preparation foam cement slurry; A kind of is by the second method foaming, add small amount of cement, and meanwhile high-speed stirred, preparation foam cement slurry, wherein preceding a kind of preparation method is better.The cast-in-situ concrete that above-mentioned preparation method produces is lightweight, high-strength, fire-resistant not only, and more noticeable is not need steam press maintenance, and cast-in-place promptly plastic, energy-saving effect is remarkable.
In recent years, China more and more payes attention to building energy conservation work, along with the enforcement of building energy conservation relevant policies, the materials for wall reform has obtained significant achievement, energy-saving material enjoys great popularity.Foam concrete has been used for the energy-saving wall material with its good characteristic, has also obtained application in others.At present, foam concrete is as follows in the applicable cases of China.
1, foam concrete block
Foam concrete block is a kind of material of foam concrete application quantity maximum in materials for wall.At China's southern area, be 900-1200kg/m generally with density rating 3Foam concrete block as the infilled wall of frame construction, mainly be the characteristics of utilizing the good and high-strength light of this building block heat-proof quality.Especially use at most with Guangdong Province, the annual consumption of this province's foam concrete block reaches 600,000 square metres at present.In the north, foam concrete block is mainly as wall insulating layer.The polystyrene foam concrete block is used for the urban building construction.This kind building block be with polystyrene foam plastics as aggregate, cement and flyash are made cementitious material, add a small amount of Admixture, form through stirring, moulding and natural curing, its specification is 200 * 200 * 200mm, can be used for inside and outside non-lbearing wall material, also can be used for roofing heat insulating material.Advantages such as it has light weight, coefficient of thermal conductivity is little, frost resistance is high, fire prevention, production is simple, cost is lower, easy construction.
2, foam concrete Light trabs
The main material that is used for building branch family and locellus partition wall at present is the GRC Light trabs, because its cost of material is higher, has influenced it and has applied.China Building Materials Academy adopts the achievement in research of GRC partition board production technology in conjunction with solid foam agent and foamed cement, has developed the production technology of coal ash foam cement light wallboard, and has obtained application.The raw material that this production adopts is as follows: the flyash of 30%-40%, the sulphate aluminium cement of 45%-65%, the expanded perlite of 0-15% and the foam of certain volume.Compare with traditional GRC Light trabs, adopt the foam concrete production technology, not only can obviously reduce the cost of product, and improve the flowability of slurry greatly, make moulding more convenient.
3, foam concrete compensation ground
Modern building design is more and more paid attention to the free settling of building in work progress with construction.Because the difference of buildings each several part deadweight, it is poor to produce free settling in work progress, requires must fill out soft material on lower its basis of part of building deadweight, ground use by way of compensation in the building design process.Foam concrete can satisfy the requirement of compensation foundation material preferably.For example, in the part basis of the United Lake, Beijing mansion, cast-in-site thickness be 150mm, compressive strength at 0.10 ± 0.02Mpa, density is less than 200kg/m 3Foam concrete has been obtained good effect.According to on-the-spot test, the concrete intensity of this kind low density foam can be controlled in the scope of design well, and has good compression.
In China, loam brick is leading building wall material.The production equipment of concrete hollow block and concrete brick falls behind, and is of poor quality, functional requirement far from.The building of developed country, clay matter materials for wall is mainly as ornament materials, and space enclosing structure mainly adopts composite construction, and energy-saving composite block and hollow brick are the main materials in the composite construction, and decorative buiding block of concrete and decorative floor block then play load-bearing and decoration functions.Equipment is the basis that energy-saving building wall material and decoration type wall building materials are able to extensive use.Building wall sheet material can be divided into whole plate and bar formula plate as the combined wall board that building external protects according to the sheet material specification.Higher because of cost, be mainly used in and build the large size city public building; The construction technology of prefabricated heat-insulation plate for external fails to obtain fine solution, and outside the building the application in the outer heat insulating work of wall is seldom for it.Domestic construction external wall outer insulation way substantially all is a site operation; Assembled on site formula exterior wall is used more abroad, adds thermal insulation, sound insulation and waterproofing materials by keel and lightweight wall panel usually and constitutes.Chemical classes heat insulating materials such as wall heat insulation material polyphenyl plate (EPS), extruded sheet (XPS), polyurathamc are main forces, these material high insulating effect, but the production line investment is big, comprehensive cost is high, is unwell to central being extensive use of of building.In Europe, EPS is main heat insulating material for external.At the extensive country regions, the heat insulating material raw material resources are abundant, as expanded perlite, expanded vermiculite etc., are difficult to satisfy the requirement of urban architecture current specifications with the heat insulating material heat-insulating property of these raw material productions, and rural architecture is energy-conservation at the early-stage, has good development opportunity.
(3) summary of the invention
The purpose of this utility model is to provide a kind of and saves that factory makes, transportation, manually assemble multiple link, saving of work and time, reduce cost, the cast-in-site foam concrete combined wall of energy-conserving and environment-protective.
The purpose of this utility model is achieved in that it is by the high strength cement pressure panels, high strength cement pressure backboard, last fibrous concrete framework, foam concrete, concrete column keel and following fibrous concrete framework are formed, last fibrous concrete framework connects concrete frame down by the concrete column keel, the high strength cement pressure plare connects the lateral surface of going up fibrous concrete framework and following concrete frame, high strength cement pressure backboard connects the medial surface of going up fibrous concrete framework and following concrete frame, the high strength cement pressure panels, high strength cement pressure backboard and last fibrous concrete framework, following fibrous concrete framework constitutes cavity, and foam concrete is positioned at the high strength cement pressure panels, high strength cement pressure backboard and last fibrous concrete framework, in the cavity that following fibrous concrete framework constitutes.The utility model also has following technical characterictic: on the described high strength cement pressure plare foam concrete pouring hole is set.
A kind of cast-in-site foam concrete of the utility model combined wall, good integrity, but that placing becomes is as a whole; Normability is good, but placing becomes the structure of different shape and size; Durability and refractoriness are good; Construction costs and maintenance cost are low.
(4) description of drawings
Fig. 1 is a structural representation of the present utility model.
(5) specific embodiment
The utility model is described in further detail for example below in conjunction with accompanying drawing.
Embodiment 1: in conjunction with Fig. 1, a kind of cast-in-site foam concrete of the utility model combined wall, it is by high strength cement pressure panels (1), high strength cement pressure backboard (3), last fibrous concrete framework (2), foam concrete (4), concrete column keel (6), form with following fibrous concrete framework (8), last fibrous concrete framework (2) connects concrete frame (8) down by concrete column keel (6), the lateral surface of fibrous concrete framework (2) and following concrete frame (8) in high strength cement pressure plare (1) connection, the medial surface of fibrous concrete framework (2) and following concrete frame (8) in high strength cement pressure backboard (3) connection, high strength cement pressure panels (1), high strength cement pressure backboard (3) and last fibrous concrete framework (2), following fibrous concrete framework (8) constitutes cavity, and foam concrete (4) is positioned at high strength cement pressure panels (1), high strength cement pressure backboard (3) and last fibrous concrete framework (2), in the cavity that following fibrous concrete framework (8) constitutes.Foam concrete pouring hole (5) is set on the described high strength cement pressure plare (1).
Embodiment 2: in conjunction with Fig. 1, and characteristics of the present utility model:
(1) mechanization is constructed efficiently:
Foaming, mixing, transportation integration, 120 meters of vertical transport, 800 meters of horizontal feed, general building only need one or two operating point can finish the cast engineering of entire building, and per hour 25 cubes cast ability makes body of wall cast work efficiency surprising, taking the thick 120mm of partition wall is example, be equivalent to per hour finish 200 square metres body of wall cast,, then can finish nearly 2000 square metres body of wall cast every day by 10 hours every days.
(2) non-dismantling formwork technology:
The non-dismantling formwork technology has been removed loaded down with trivial details formwork form removal operation from, has saved form cost usefulness, has improved the planeness of surface of wall.Body of wall keel after building and wallboard are connected as a single entity by the foamed concrete of cast, and whole structure and surface of wall quality are splendid, remove the wall plastering operation from, can directly scrape wall body surface decoratives such as Da Bai, tile fixing and handle.Saved labour cost and work efficiency is improved greatly.
(3) in light weight:
Traditional architecture all is Hou Qiang, Fei Liang, from great.The dry volume density of foam concrete is 200-700kg/m3, is equivalent to about the 1/3-1/10 of loam brick.About the 1/5-1/10 of ordinary concrete, thereby adopt foamed concrete to make materials for wall can to alleviate the building deadweight greatly, increase story height, reduce foundation cost about 10%.
(4) good heat insulating:
The attenuate body of wall is saved usable floor area about 10%: because a large amount of bubbles and micropore are contained in foam concrete inside, thereby good thermal insulation etc. is arranged.Thermal conductivity is generally 0.09-0.17W/ (m.k), and its heat insulation and preservation effect is than the high several times of ordinary concrete, and the foam concrete exterior wall that 20cm is thick, its heat insulation effect are equivalent to the loam brick exterior wall of 49cm,
Product is the foamed concrete combined wall, be raw material mainly with cement, lime, river sand, waste coal ash, blowing agent and water, by adding multiple Admixture, through the science compatibility, fully stir and tremble, mix and sealing high-pressure foam and a kind of novel environment friendly walling of making, have the intensity height, unit weight is light, price is low, heat-insulating and sound-absorbing is effective, advantage such as coefficient of thermal conductivity, water absorption rate are low.Simultaneously, compare with traditional processing technology, foamed concrete combined wall production line consumption rate in process of production is low, not coal-fired, not blowdown, cost of production is low, the advantage of effect is given up, put forward to its energy-saving and environmental protection, profit, obtained architectural design, the approval of construction department, can be widely used in the high-rise frame structure construction work.As a kind of new wall material high-tech product of uniqueness, changed in the past the structure image of " beam is thick, post is fertile, deep foundation ", thoroughly reverse the construction worker and gone over the backward operator scheme of " brick two is bent over ", thereby will advance China's wall reform process effectively." produce this new wall material and do not waste the soil; do not waste forest, do not pollute, no unloading water; utilize waste residue, the formulated a kind of new wall material of several industrial chemicals; the benefit of new wall material be light, sound insulation is good, good heat insulation, do not pollute; without any polluting and pernicious gas, market prospects are fine to human body.
Embodiment 3: in conjunction with Fig. 1, technological process of the present utility model is as follows:
Keel are installed: according to designing requirement, the body of wall position line of ink marker draws; According to the line of ink marker. with nailing or expansion bolt fixedly world keel (pitch of bolts is generally 50～60cm); Vertical concrete column keel are installed, and spacing is generally 30--60cm. according to field conditions and material and decide; If vertical keel and metope keep the elastic gap of 1～3cm. steel work, fill with rock wool in its gap.; The pipeline hole height of each vertical keel is consistent as far as possible, passes through in order to hydroelectric line; Panel is installed: panel adopts FC low-shrinkage high strength cement increased pressure board (other sheet materials are because of intensity, and reasons such as shrinkage can produce arch camber, and phenomenons such as bad and shrinkage crack bond); Panel is locked on the keel with tapping screw, is generally one on 15～20cm lock; Shingle nail is the envelope single face earlier, treat that the water power pipe is finished pipe arrangement after, seal another panel again, reserve grouting mouthful; Plate and plate seam are reserved 2～3mm.Grouting construction: with special-purpose grout pump be in the milk cast, the vertically about 10 floor height of construction height; Mix and stir light weight aggregate concrete with jumbo mortar mixer, requiring with bleeding not is principle, and weight is 75kg/m2 (is example with the thick wall of 75mm); Grout pipe outlet places body of wall grouting mouthful, and beating plate face gently, makes its full slurry; During grouting, the metope distortion amount must not surpass 2mm..Metope is handled: handle with rustproof paint earlier on the tapping screw surface, criticizes Puttying again; Metope is generally criticized native batch with elasticity and is scraped, again sprayed coating or tile fixing.

Claims (2)

1. cast-in-site foam concrete combined wall, it is by high strength cement pressure panels (1), high strength cement pressure backboard (3), last fibrous concrete framework (2), foam concrete (4), concrete column keel (6), form with following fibrous concrete framework (8), it is characterized in that: go up fibrous concrete framework (2) and connect concrete frame (8) down by concrete column keel (6), the lateral surface of fibrous concrete framework (2) and following concrete frame (8) in high strength cement pressure plare (1) connection, the medial surface of fibrous concrete framework (2) and following concrete frame (8) in high strength cement pressure backboard (3) connection, high strength cement pressure panels (1), high strength cement pressure backboard (3) and last fibrous concrete framework (2), following fibrous concrete framework (8) constitutes cavity, and foam concrete (4) is positioned at high strength cement pressure panels (1), high strength cement pressure backboard (3) and last fibrous concrete framework (2), in the cavity that following fibrous concrete framework (8) constitutes.
2. a kind of cast-in-site foam concrete combined wall according to claim 1 is characterized in that: foam concrete pouring hole (5) is set on the described high strength cement pressure plare (1).
CN2010205995367U 2010-11-10 2010-11-10 Cast-in-situ foam concrete composite wall body Expired - Fee Related CN201835404U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102359200A (en) * 2011-08-23 2012-02-22 东南大学 Inorganic heat-insulating wall body and construction method thereof
CN106121064A (en) * 2016-08-15 2016-11-16 安徽鸿路钢结构(集团)股份有限公司 The insulated fire structure of body of wall
CN107090940A (en) * 2017-04-13 2017-08-25 中建钢构有限公司 A kind of preparation method of light gauge cold-formed steel shape keel stalk board composite laminboard
CN110158850A (en) * 2019-06-11 2019-08-23 江苏德丰建设集团有限公司 Assembled light concrete self-insulating combined wall board and preparation method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102359200A (en) * 2011-08-23 2012-02-22 东南大学 Inorganic heat-insulating wall body and construction method thereof
CN102359200B (en) * 2011-08-23 2013-09-18 东南大学 Construction method of inorganic heat-insulating wall body
CN106121064A (en) * 2016-08-15 2016-11-16 安徽鸿路钢结构(集团)股份有限公司 The insulated fire structure of body of wall
CN107090940A (en) * 2017-04-13 2017-08-25 中建钢构有限公司 A kind of preparation method of light gauge cold-formed steel shape keel stalk board composite laminboard
CN110158850A (en) * 2019-06-11 2019-08-23 江苏德丰建设集团有限公司 Assembled light concrete self-insulating combined wall board and preparation method thereof

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110518

Termination date: 20121110