CN108726958A - A method of preparing concrete partition using building castoff - Google Patents

A method of preparing concrete partition using building castoff Download PDF

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Publication number
CN108726958A
CN108726958A CN201810924772.2A CN201810924772A CN108726958A CN 108726958 A CN108726958 A CN 108726958A CN 201810924772 A CN201810924772 A CN 201810924772A CN 108726958 A CN108726958 A CN 108726958A
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concrete
wall
foaming agent
partition
building castoff
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CN201810924772.2A
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李艳义
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李艳义
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Priority to CN201810924772.2A priority Critical patent/CN108726958A/en
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    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02Compositions 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
    • C04B28/04Portland cements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/66Sealings
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74Heat, sound or noise insulation, absorption, or reflection . Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/88Insulating elements for both heat and sound
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/94Protection against other undesired influences or dangers against fire
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/74Removable non-load-bearing partitions; Partitions with a free upper edge modular coordination
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84Walls made by casting, pouring, or tamping in situ
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate
    • E04H9/02Buildings, or groups of buildings, or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake, extreme climate withstanding earthquake or sinking of ground
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20Resistance against chemical, physical or biological attack
    • C04B2111/28Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/40Porous or lightweight materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/52Sound-insulating materials
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/20Mortars, concrete or artificial stone characterised by specific physical values for the density
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/30Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
    • C04B2201/32Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2201/00Mortars, concrete or artificial stone characterised by specific physical values
    • C04B2201/50Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength

Abstract

The invention discloses a kind of method preparing concrete partition using building castoff, the concrete partition, bulk density 500kg/m3‑1000kg/m3, intensity is not less than 5Mpa;156mm thickness can reach the national standard of party wall 50dB, heat transfer coefficient 0.65-0.9W/mK;The raw material of the concrete partition is by weight including following component:Building castoff emery dust material 65%-90%, cement 5%-20%, foaming agent 0.05%-4.5%, concrete waterproofer 0.2%-5%, concrete additive 0.05%-4.5%, fiber 0.2%-5%;Method includes the following steps:1) sorting classification carried out to building castoff, discarded concrete and brick is ground to emery dust state after selective crushing, powder particle diameter is 2mm hereinafter, the primary raw material as materials for wall uses.The present invention provides cast-in-place foamed concrete internal partition wall, the wall is made of cast-in-place mode, is had the advantages that light high-strength, water proof anti-seepage, shock resistance be good, good integrity, is improved construction efficiency, reduces engineering construction cost.

Description

A method of preparing concrete partition using building castoff
Technical field
The invention belongs to the method and technology field of mixed mud wall is prepared using building castoff, and in particular to a kind of utilize is built Build the method that waste prepares concrete partition.
Background technology
Currently, in civilian and public building, partition wall mainly uses brickwork separating wall, air-entrained concrete building block partition wall, light Based plate partition wall etc., wherein brick, blockwork are using relatively broad, but that there are weight is big, builds the problems such as time-consuming and laborious by laying bricks or stones, mixes Although concrete board or calcium silicate board with microporous wallboard have the characteristics that the defects of high-strength light, majority easy tos produce crack.Therefore basis is lived Residence industrialization improves construction effect to the needs and reduction building load of novel wall, attenuating building cost, green construction Rate improves the target of the functions such as wall sound insulation, antidetonation, fire prevention, waterproof, there is the necessity for being further improved wall manufacturing technology.
Invention content
One, technical problems to be solved
The technical problem to be solved in the present invention is to provide a kind of method preparing concrete partition using building castoff, with Solve the technical problem.
Two, technical solution
To solve the technical problem, the technical solution adopted in the present invention is:A kind of prepared using building castoff is mixed The method of solidifying soil partition wall, the concrete partition, bulk density 500kg/m3-1000kg/m3, intensity is not less than 5Mpa;156mm Thickness can reach the national standard of party wall 50dB, heat transfer coefficient 0.65-0.9W/mK;
The raw material of the concrete partition is by weight including following component:Building castoff emery dust material 65%-90%, water Mud 5%-20%, foaming agent 0.05%-4.5%, concrete waterproofer 0.2%-5%, concrete additive 0.05%-4.5%, Fiber 0.2%-5%;
Method includes the following steps:
1) sorting classification carried out to building castoff, discarded concrete and brick is ground to emery dust shape after selective crushing State, powder particle diameter are 2mm hereinafter, the primary raw material as materials for wall uses;
2) with reference to design drawing, according to wall form, load, foundation soil classification, construction equipment and material supply into Row design, builds template and its holder, and reinforced mesh is arranged in template;Factory's emery dust and cement, concrete waterproofer, Fiber, concrete additive mix according to the ratio, obtain mix concrete material, transport to construction site;
3) foam slurry is prepared:Foaming agent and water, inflating pressure 3-5min, until air compressor machine air pressure liter is added in foaming bucket It is pressed onto after 0.65-0.8MPa obtains foaming agent bubble slurry and shuts down for use, the throwing amount weight ratio of foaming agent and the water is 1:10- 13;
4) the mix concrete material of construction site mixed is added in secondary mixer and carries out reinforcing stirring;
5) slurry mixing tube will be steeped through suction system to foaming agent through the uniform concrete of secondary mixer mix in step 4) It is interior, it is spare to obtain foam concrete after being sufficiently mixed with foaming agent bubble slurry, it is 4-5min, foaming agent bubble slurry and coagulation to mix the bubble time The rate of charge of soil is 0.3-0.7:1;
6) foam concrete that step 5) obtains is poured in template, using hammering template way while pouring Vibrated, the described mouth that buries is deep-controlled between 180-350mm, and it is identical as atmospheric pressure to pour mouthful pressure, make slurry from It so flows out in the template of step 2), obtains foam concrete filling wall;
7) simultaneously moisture-keeping maintaining is covered to the foam concrete of step 6) within 12h after pouring, is torn open after 2 days Mould, then plastic covering thin film moisturizing maintenance or spraying curing fluid, foam concrete moisture-keeping maintaining or spray curing fluid time No less than 14 days.
The concrete partition, bulk density 650kg/m3-720kg/m3
Step 2) further includes following flow:Upper horizontal, the lower transom installation-centre keel installation-keel of control line-are put to test Receipts-installation side glass fibre and magnesium cement board-installation water, electric line concealment acceptance-installation other side glass fibre and magnesium cement board.
Three, advantageous effect
The present invention is compared to the prior art, has the advantages that:
One, the present invention provides cast-in-place foamed concrete internal partition wall, the wall is made of cast-in-place mode, is had light The advantages of high-strength, water proof anti-seepage, shock resistance be good, good integrity improves construction efficiency, reduces engineering construction cost.Wall after cast Body flat smooth is without smearing screed, and the cast-in-place foamed concrete is by portland cement or Portland cement, building The compositions such as castoff regenerative emery dust, concrete foamer, concrete waterproofer, can Self-leveling, when construction takes cast in place process, It is directly cast between template by the grout hole reserved in template.
Two, the present invention, which has, reduces building load, reduces construction cost, at low cost (ratio is reduced using flyash 20% cost), lightweight (per cubic meter volume unit weight 500kg-1000kg), high-strength (intensity reaches 5MPa-15MPa), antidetonation (reach To more than nine grades of antidetonation earthquake intensitys), impervious, fireproof heat insulating (thermal coefficient≤0.030W/mk), good (the thickness 120mm sound insulations of sound insulation For 52dB), environmentally friendly (material that all concrete use, nontoxic radiationless), (average worker per eight is small for rapid construction When at wall 60m2), it is smooth without plastering, disposably at wall free from flaw etc..
Three, by taking traditional brick wall as an example, point family partition wall thickness must reach the sound insulation mark that 200mm-240mm can reach country Standard, and the 156mm thickness of cast-in-place light compound wall of the present invention can reach the national standard of party wall 50dB;With party wall, Sound insulation 45dB is standard, and the thickness of brick wall should be 200mm or more, and PLC lightweights grout wall need to only reach 156mm, wall Thickness just reduce 44mm, with 100m2For house type, user's usable area about 5m can be increased2Left and right, that is, increase indoor space Economic benefit is improved again.
Four, the present invention be suitable for different weather burthen (especially cold and severe cold area) it is newly-built, renovating and enlarging civilian and The inner separation wall body of indoor non-bearing in public building.
Specific implementation mode
With reference to embodiment, the specific implementation mode of the present invention is described in detail.
In the examples below,
Foaming agent:Hundred happy energy device Co., Ltd of Hefei, hundred happy cement blowing agents;
Concrete additive is Fujian Tai Aoli companies, composite high-early strength water-reducing agent;
Concrete waterproofer produces for Guangzhou Luyu Construction Material Co., Ltd..
Cement is No. 425 Portland cements.
Fiber is glass fibre, length 5-30mm.
Embodiment 1
Cast slurry formula be:Building castoff emery dust material 85%, cement 10%, foaming agent 2.5%, concrete water-proof Agent 1.5%, fiber 0.5%, concrete additive 0.5%.The intensity of partition wall reaches 7.5MPa.
1) discarded concrete and brick are ground to emery dust state, grain size 2mm is hereinafter, primary raw material as materials for wall It uses;
2) with reference to design drawing, according to wall form, load, foundation soil classification, construction equipment and material supply into Row design, builds template and its holder, and reinforced mesh is arranged in template;Factory's emery dust and cement, concrete waterproofer, Fiber, concrete additive mix according to the ratio, obtain concrete drier, transport to construction site;
3) foam slurry is prepared:Foaming agent and water, inflating pressure 5min are added in foaming bucket, until air compressor machine air pressure is boosted It is shut down for use after obtaining foaming agent bubble slurry to 0.7MPa, the throwing amount weight ratio of foaming agent and the water is 1:12;
4) concrete drier of construction site mixed is added in secondary mixer and carries out reinforcing stirring;
5) slurry mixing tube will be steeped through suction system to foaming agent through the uniform concrete of secondary mixer mix in step 4) It is interior, it is spare to obtain foam concrete after being sufficiently mixed with foaming agent bubble slurry, it is 4min, foaming agent bubble slurry and concrete to mix the bubble time Rate of charge be 0.3:1;
6) foam concrete that step 5) obtains is poured in template, using hammering template way while pouring Vibrated, the described mouth that buries is deep-controlled between 180-350mm, and it is identical as atmospheric pressure to pour mouthful pressure, make slurry from It so flows out in the template of step 2), obtains foam concrete filling wall;
7) simultaneously moisture-keeping maintaining is covered to the foam concrete of step 6) within 12h after pouring, is torn open after 2 days Mould, then plastic covering thin film moisturizing maintenance or spraying curing fluid, foam concrete moisture-keeping maintaining or spray curing fluid time No less than 14 days.
Embodiment 2
Cast slurry formula be:Building castoff emery dust material 82%, cement 13%, foaming agent 2.5%, concrete water-proof Agent 1.5%, fiber 0.5%, concrete additive 0.5%.The intensity of partition wall reaches 10MPa.
1) discarded concrete and brick are ground to emery dust state, grain size 2mm is hereinafter, primary raw material as materials for wall It uses;
2) with reference to design drawing, according to wall form, load, foundation soil classification, construction equipment and material supply into Row design, builds template and its holder, and reinforced mesh is arranged in template;Factory's emery dust and cement, concrete waterproofer, Fiber, concrete additive mix according to the ratio, obtain concrete drier, transport to construction site;
3) foam slurry is prepared:Foaming agent and water, inflating pressure 5min are added in foaming bucket, until air compressor machine air pressure is boosted It is shut down for use after obtaining foaming agent bubble slurry to 0.7MPa, the throwing amount weight ratio of foaming agent and the water is 1:12;
4) concrete drier of construction site mixed is added in secondary mixer and carries out reinforcing stirring;
5) slurry mixing tube will be steeped through suction system to foaming agent through the uniform concrete of secondary mixer mix in step 4) It is interior, it is spare to obtain foam concrete after being sufficiently mixed with foaming agent bubble slurry, it is 4min, foaming agent bubble slurry and concrete to mix the bubble time Rate of charge be 0.3:1;
6) foam concrete that step 5) obtains is poured in template, using hammering template way while pouring Vibrated, the described mouth that buries is deep-controlled between 180-350mm, and it is identical as atmospheric pressure to pour mouthful pressure, make slurry from It so flows out in the template of step 2), obtains foam concrete filling wall;
7) simultaneously moisture-keeping maintaining is covered to the foam concrete of step 6) within 12h after pouring, is torn open after 2 days Mould, then plastic covering thin film moisturizing maintenance or spraying curing fluid, foam concrete moisture-keeping maintaining or spray curing fluid time No less than 14 days.
Embodiment 3
Cast slurry formula be:Building castoff emery dust material 88%, cement 7%, foaming agent 2.5%, concrete water-proof Agent 1.5%, fiber 0.5%, concrete additive 0.5%.The intensity of partition wall reaches 5MPa.
1) discarded concrete and brick are ground to emery dust state, grain size 2mm is hereinafter, primary raw material as materials for wall It uses;
2) with reference to design drawing, according to wall form, load, foundation soil classification, construction equipment and material supply into Row design, builds template and its holder, and reinforced mesh is arranged in template;Factory's emery dust and cement, concrete waterproofer, Fiber, concrete additive mix according to the ratio, obtain concrete drier, transport to construction site;
3) foam slurry is prepared:Foaming agent and water, inflating pressure 5min are added in foaming bucket, until air compressor machine air pressure is boosted It is shut down for use after obtaining foaming agent bubble slurry to 0.7MPa, the throwing amount weight ratio of foaming agent and the water is 1:12;
4) concrete drier of construction site mixed is added in secondary mixer and carries out reinforcing stirring;
5) slurry mixing tube will be steeped through suction system to foaming agent through the uniform concrete of secondary mixer mix in step 4) It is interior, it is spare to obtain foam concrete after being sufficiently mixed with foaming agent bubble slurry, it is 4min, foaming agent bubble slurry and concrete to mix the bubble time Rate of charge be 0.3:1;
6) foam concrete that step 5) obtains is poured in template, using hammering template way while pouring Vibrated, the described mouth that buries is deep-controlled between 180-350mm, and it is identical as atmospheric pressure to pour mouthful pressure, make slurry from It so flows out in the template of step 2), obtains foam concrete filling wall;
7) simultaneously moisture-keeping maintaining is covered to the foam concrete of step 6) within 12h after pouring, is torn open after 2 days Mould, then plastic covering thin film moisturizing maintenance or spraying curing fluid, foam concrete moisture-keeping maintaining or spray curing fluid time No less than 14 days.
Wall specification
Thickness of wall body (mm) Plate thickness (mm) Keel siding (mm) Weight (kg/m2)
112(116、120) 6(8、10) 100 53(58、63)
152(156、160) 6(8、10) 140 73(78、83)
192(196、200) 6(8、10) 180 86(91、96)
Wall appearance mechanical performance index
Construction process and construction point
Putting control line, --- --- side glass is installed in centre keel installation --- keel examination --- for upper horizontal, lower transom installation Magnesium tablet --- --- test for installation water, electric line concealment acceptance by installation other side glass fibre and magnesium cement board --- cast lightweight slurry --- It receives.
Fire line:Cast-in-situ wall 116mm is thick, 156mm is thick, fire endurance of 200mm thickness at a high temperature of 1000 degrees Celsius More than 4 hours, and toxic gas is not distributed, non-ignitable performance reaches national A grades of standard.
Shock resistance:Design is scientific and reasonable for cast-in-place light compound wall, and entire wall lightgage steel joist is connect with beam, plate, column Moulding by casting afterwards combines closely to form a solid multiple constraint structure wall, and shock resistance is 1.5 times of general masonry, together When improve antidetonation rank again, be suitable for 8 degree and 8 degree of seismic fortification intensity hereinafter, especially suitable for earthquake prone areas.
Sound insulation property:Cast-in-situ wall locellus partition wall 116mm thickness air-borne sound weighted transmission loss reaches 45 decibels, and 156mm thickness divides family Partition wall air-borne sound weighted transmission loss reaches 50 decibels, and 200mm thickness hotel partition wall air-borne sound weighted transmission loss reaches 55 decibels.
Heat insulation property:The heat transfer coefficient of cast-in-situ wall is only the requirement that 0.6-0.9W/mK can meet self heat insulation wall, It solves the defect of blockwork heat insulating effect difference, and meets the requirement of national existing household metering heating.
It is demonstrated experimentally that cast-in-situ wall can be in the case where not doing any water repellent facing, in moist environment, wall back side energy Drying is kept, leaves no trace, will not occur condensation droplet in wet weather.
Suspended weight:Cast-in-situ wall category solid composite wall body, nail-holding ability is strong, can directly nailing or upper expansion bolt into Row hanging weight, such as air conditioner, single-point hanging force is in 45KG or more;Solve the problems, such as that lightweight wall cannot hang weight, And the panel surface flat smooth of wallboard not will produce dust, can directly paste the materials such as ceramic tile, wallpaper, wood trim and make facing Processing.
The specific application example that the above is only the present invention, is not limited in any way protection scope of the present invention.

Claims (3)

1. a kind of method preparing concrete partition using building castoff, which is characterized in that the concrete partition, volume are close Spend 500kg/m3-1000kg/m3, intensity is not less than 5Mpa;156mm thickness can reach the national standard of party wall 50dB, heat transfer Coefficient is 0.65-0.9W/mK;
The raw material of the concrete partition is by weight including following component:Building castoff emery dust material 65%-90%, cement 5%-20%, foaming agent 0.05%-4.5%, concrete waterproofer 0.2%-5%, concrete additive 0.05%-4.5% are fine Tie up 0.2%-5%;
Method includes the following steps:
1) sorting classification carried out to building castoff, discarded concrete and brick is ground to emery dust state after selective crushing, Powder particle diameter is 2mm hereinafter, the primary raw material as materials for wall uses;
2) it with reference to design drawing, is set according to wall form, load, foundation soil classification, construction equipment and material supply Meter, builds template and its holder, and reinforced mesh is arranged in template;In factory's emery dust and cement, concrete waterproofer, fibre Dimension, concrete additive mix according to the ratio, obtain mix concrete material, transport to construction site;
3) foam slurry is prepared:Foaming agent and water, inflating pressure 3-5min is added in foaming bucket, until air compressor machine air pressure boosts to 0.65-0.8MPa is shut down for use after obtaining foaming agent bubble slurry, and the throwing amount weight ratio of foaming agent and the water is 1:10-13;
4) the mix concrete material of construction site mixed is added in secondary mixer and carries out reinforcing stirring;
5) it will be steeped in slurry mixing tube through suction system to foaming agent through the uniform concrete of secondary mixer mix in step 4), with It is spare that foaming agent bubble slurry obtains foam concrete after being sufficiently mixed, and it is 4-5min, foaming agent bubble slurry and concrete to mix the bubble time Rate of charge is 0.3-0.7:1;
6) foam concrete that step 5) obtains is poured in template, is carried out using hammering template way while pouring Vibration, the described mouth that buries is deep-controlled between 180-350mm, and it is identical as atmospheric pressure to pour mouthful pressure, and slurry is made to flow naturally Go out to the template of step 2), obtains foam concrete filling wall;
7) foam concrete of step 6) is covered and moisture-keeping maintaining within 12h after pouring, form removal after 2 days, Then the maintenance of plastic covering thin film moisturizing or spraying curing fluid, foam concrete moisture-keeping maintaining or the time for spraying curing fluid are many In 14 days.
2. according to claim 1 prepare concrete partition using building castoff, which is characterized in that the concrete every Wall, bulk density 650kg/m3-720kg/m3
3. the method according to claim 1 for preparing concrete partition using building castoff, which is characterized in that step 2) It further include following flow:It puts control line-upper horizontal, lower transom installation-centre keel installation-keel and side glass check and accept-is installed Magnesium tablet-installation water, electric line concealment acceptance-installation other side glass fibre and magnesium cement board.
CN201810924772.2A 2018-08-14 2018-08-14 A method of preparing concrete partition using building castoff Withdrawn CN108726958A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110499852A (en) * 2019-08-01 2019-11-26 肖法刚 A kind of construction method of efficient quick integral forming energy-saving wall
CN113429183A (en) * 2021-07-13 2021-09-24 上海建工建材科技集团股份有限公司 High-doping-amount regenerated sand powder-based foam concrete and preparation method thereof

Citations (2)

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CN103075009A (en) * 2013-01-25 2013-05-01 温州建设集团有限公司 Construction method of filler wall with cast-in-place foamed concrete
CN107447916A (en) * 2017-08-30 2017-12-08 河北建筑工程学院 A kind of assembled foam concrete compound external wall panel and its construction method

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CN110499852A (en) * 2019-08-01 2019-11-26 肖法刚 A kind of construction method of efficient quick integral forming energy-saving wall
CN113429183A (en) * 2021-07-13 2021-09-24 上海建工建材科技集团股份有限公司 High-doping-amount regenerated sand powder-based foam concrete and preparation method thereof

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