CN102674759A - EPS (Expandable Polystyrene) light aggregate concrete thermal insulation hollow block and construction method thereof - Google Patents

EPS (Expandable Polystyrene) light aggregate concrete thermal insulation hollow block and construction method thereof Download PDF

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Publication number
CN102674759A
CN102674759A CN2012100996795A CN201210099679A CN102674759A CN 102674759 A CN102674759 A CN 102674759A CN 2012100996795 A CN2012100996795 A CN 2012100996795A CN 201210099679 A CN201210099679 A CN 201210099679A CN 102674759 A CN102674759 A CN 102674759A
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China
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mould
eps
light aggregate
aggregate concrete
block
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张雪松
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State Grid Corp of China SGCC
China Electric Power Research Institute Co Ltd CEPRI
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China Electric Power Research Institute Co Ltd CEPRI
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Priority to CN2012100996795A priority Critical patent/CN102674759A/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/24Structural elements or technologies for improving thermal insulation
    • Y02A30/244Structural elements or technologies for improving thermal insulation using natural or recycled building materials, e.g. straw, wool, clay or used tires

Abstract

The invention provides an EPS (Expandable Polystyrene) light aggregate concrete thermal insulation hollow block and a construction method thereof, belonging to the technical of a concrete building material. The hollow block is prepared by using waste EPS (Expandable Polystyrene) particles as aggregates in concrete, the cement as a cementing material and adding pulverized fuel ash, silica fume, polymer emulsion and water. The EPS light aggregate concrete thermal insulation hollow block solves the problems of weight and thermal insulation property when a brick-concrete structure is used as a wall; and due to the recycling of lots of pulverized fuel ash and EPS, the environmental stress is eased, and the EPS light aggregate concrete thermal insulation hollow block has very effect on the elimination of environmental pollution. The hollow block provided by the invention has the characteristics of light weight, excellent thermal insulation property, simple construction method and green environmental protection.

Description

A kind of EPS light aggregate concrete heat-insulating is built mould and constructional method thereof
Technical field
The invention belongs to the concrete building material field, be specifically related to a kind of EPS light aggregate concrete heat-insulating and build mould and constructional method thereof.
Background technology
For many years, a large amount of covil construction are main with brick mix structure always, and the brick mix structure brick using amount is huge, and the soil of a large amount of farming that is used for of having used up and the process of firing clay brick expend mass energy again, thereby environment is caused detrimentally affect.In addition, the solid clay brick heat-insulating property is relatively poor, and therefore annual heating energy consumption also improves greatly.Therefore brick mix structure is difficult to satisfy growing construction function request.
It is to utilize the waste and old polystyrol particle as the thermodynamic material in the concrete that the EPS light aggregate concrete heat-insulating is built mould, and sand is as aggregate, and cement is consolidating material, and the New Building Materials processed of adding coal ash, silicon ash, admixture and water.The EPS light aggregate concrete heat-insulating is built the calligraphy or painting model body and is had and reserves hole in length and breadth, when building by laying bricks or stones in hole joint bar, build certain altitude by laying bricks or stones after, in hole, build self-compacting concrete; When deposit concrete, build the effect of mould rapping plate, treat to form the stealthy framework of Steel Concrete after the concrete hardening.The characteristics of this block mould are: convenient construction, its heat-insulating property is far superior to traditional brick wall.Therefore this block mould is the good substitute of clay brick, and wherein reinforced concrete beam column is the supporting part of buildings, and the EPS light aggregate concrete heat-insulating is built mould and then played function of heat insulation.
In recent years, the development to EPS light aggregate concrete block mould comprises:
Application number is CN200810049396.3; Denomination of invention is the patent of invention of " constructional method of EPS compound, light block and light partition wall thereof "; Wherein the EPS compound is by EPS particle 25~35kg, cement 135~165kg, flyash 135~165kg; Water reducer 2~4kg, thickening material 4~6kg and water 60~80kg mix.Utilize the EPS compound to be prepared into light block; Adopt EPS compound light block to build light partition wall by laying bricks or stones then, in the construction process of light partition wall, when building wall to 1/2 highly locates to establish horizontal concrete cast-in-situ band; When building partition wall length by laying bricks or stones, in the middle of body of wall, establish the concrete forming column greater than 3m.
And for example application number is CN201010555170.8; Denomination of invention is " no heat bridge lattice heat insulation building block " patent of invention; Announced a kind of building block, injected the polyphenyl foam heat preservation slurry, concrete lattice holllow building block and polyphenyl foam heat preservation slurry have been combined at hollow position.Holllow building block is a multi-layer cavity, and thermal insulation layer and stem stem cavity exist jointly.The lattice holllow building block adopts middle rib to stagger each other, also forms lattice behind the building block overlap joint.Insulation blocks is processed as follows: after earlier grout, foam being stirred 60s together, add after perlite and EPS particle, fiber, water stirs 30s together casting again.
The EPS light aggregate concrete heat-insulating is built the development of mould and is mainly carried out around two problems, and the one, build mould and need have higher intensity, satisfying the construction stage requirement, the 2nd, build mould and need have good heat-insulating property to satisfy the building energy-saving requirement.The EPS light aggregate concrete heat-insulating is built the evaluation of mode structure quality on macroscopic view: be meant whether composition material is evenly closely knit; Saying so from microcosmic, to refer to that the interface structure of pore structure and EPS particle and cement mixing mortar of mould is built in this insulation fine or not.It should be noted that especially: the performance that EPS particulate consumption, size, level pairing EPS light aggregate concrete heat-insulating are built mould has played conclusive effect.Because the EPS particle is fabulous light heat insulation material, increases its consumption and can make this block mould thermal conductivity descend the thermal property of strongthener; But the density of material is descended, and intensity reduces.In addition, EPS particulate diameter is big more, and poor more this concrete aperture of grating is also bigger and increased the connectedness between the Kong Yukong, has increased the convection current of air like this, and the heat conductivility of this material and endurance quality are descended.So design structure and well behaved EPS light aggregate concrete heat-insulating block mould according to EPS particulate performance characteristics, have bigger practical value.
Summary of the invention
The object of the invention is to provide a kind of EPS light aggregate concrete heat-insulating to build mould and constructional method thereof, builds mould and utilizes waste and old EPS (PS) particle as the aggregate in the concrete, and cement is consolidating material, and adding coal ash, silicon ash, admixture and water.Weight issue and heat-insulating property problem when the EPS light aggregate concrete heat-insulating is built mould and solved brick mix structure as body of wall, and because environmental stress has been alleviated in the in a large number utilization again of flyash and EPS offset except that environmental pollution and play a good role.
For realizing the foregoing invention purpose, the technical scheme that the present invention takes is:
A kind of EPS light aggregate concrete heat-insulating is built mould, and its improvements are that the molded raw material that is equipped with of said insulation block comprises following parts by weight of component:
Wherein: said polymer emulsion is a Vinyl Acetate Copolymer solution, and said polymer emulsion solid content is 48-53%, and viscosity is 1.5-4.0Pa.s, and the Ph value is 4-6.
Wherein: the granularity 0.1 μ m-0.2 μ m of said silicon ash, density 2.0-2.4g/cm 3, tap density 200-350kg/m 3, specific surface area 15000-25000m 2/ kg.
Wherein: said river sand is selected medium sand for use, and sand coarse aggregate ratio is 20-25% by volume, and tap density is 1225-1325kg/m 3, water-intake rate is 0.95-1.05%.
Wherein: said EPS particulate bulk density is 10~20kg/m 3
Wherein: said perlite is a pearlstone.
Another optimal technical scheme of the present invention is: a kind of EPS light aggregate concrete heat-insulating is built mould, and its improvements are the specification of said block mould, build mould greatly and are of a size of: the high 1200mm * 300mm of length and width * 550mm; The middle mould of building is of a size of: the high 600mm * 300mm of length and width * 550mm; Little block mould is of a size of: the high 300mm * 300mm of length and width * 550mm; Said block mould is the uniform distribution hole along its length, and described hole is interconnected in block mould short transverse.
A kind of method for preparing insulation block mould, its improvements are that said preparation method comprises the steps:
1) stirring technique
According to right 1 described feed proportioning, cement, flyash, silicon ash, perlite, Vinyl Acetate Copolymer solution, river sand and 20%-30% water are stirred into low water-cement ratio paste;
Adding EPS particle and surplus water are stirred to the EPS particle surface and evenly are wrapped with one deck sand-cement slurry;
2) moulding process
Mixed material is transferred in the mould that is positioned on the shaking table, adopted low water-cement ratio pressurization and vibration moulding process, time of vibration exceeds with surperficial bleeding;
3) maintaining process
Curing in the mold 2~3 days;
Wherein: the curing in the mold temperature is 25-30 ℃, and maintenance humidity is 60-100%;
The demoulding, with concrete water the back pad pasting, carried out natural curing 14-30 days;
Wherein: the pad pasting curing temperature is 25-30 ℃, and maintenance humidity is 60-100%.
A kind of constructional method of building mould that is incubated, its improvements are that said constructional method comprises the steps:
1) snap the line location back in building wall position is placed and is built mould, establishes the vertical reinforcement of certain altitude at the middle position of building the nib hole, builds first skin and builds mould;
The height of said vertical reinforcement is that story height adds lap length, and the hole of adjacent block mould should be aimed at, and the block mould that lays should guarantee transverse horizontal, and vertical vertical, the building block junction will guarantee tight joint; Steel bar end should expose surface of base 500mm at least;
2) place horizontal reinforcement at the middle position of every skin block mould horizontal joint, reinforcing bar supports with bar chair;
3) horizontal reinforcement is fixedly connected with vertical reinforcement;
4) repeating step 1-3, being located along the same line is welded to each other between the vertical reinforcement;
5) build the cast height by laying bricks or stones after, the wall body is carried out integral body inspection, guarantee the wall body vertical, stablize; Deposit concrete then;
Strict control dispensing speed is taked placement layer by layer when building, and builds highly not ultra 1400mm, and reduces building the surge pressure of mould, and mould is out of shape, race is emitted and spillage to avoid building.
Owing to adopted technique scheme, compared with prior art, beneficial effect of the present invention comprises:
1) builds mould weight saving
The EPS pellet density is very low, builds mould to the insulation that it is processed as light skeletal, has advantages such as density is low, has favorable economic benefit and social benefit; Pearlstone also is a kind of light material, can alleviate the weight of building mould;
2) heat-insulating property is excellent
The EPS particle is a most important thermodynamic material in the EPS light aggregate concrete; The light aggregate concrete that it is processed as aggregate; Have the little advantage of thermal conductivity, increase its consumption and can make this block mould thermal conductivity descend the thermal property of strongthener; And its thermal and insulating performance is superior to other material, is all very high lagging material of a kind of economic benefit and social benefit; Pearlstone also is a kind of light heat insulation material, in the EPS light aggregate concrete, mainly plays insulation, fills, suppresses EPS particle come-up;
3) constructional method is simple
Can select for use in the construction the mode of building the mould traverse, the colligation easily of horizontal vertical reinforcement forms one-piece construction; Utilize this block mould can solve the hanging problem in addition, can realize decoration, insulation and structure-integrated directly at masonry template external pasting face brick; Build mould rapping plate and mould dual function, build mould insulation water conservation, do not need water seasoning after body of wall is built, winter construction also need not the insulation measure, and maintenance helps improving quality of concrete in the mould; Simultaneously, insulation build mould in construction process as the non-dismantling formwork of onsite concrete, bear construction loads, solved the problem of waste of manpower, material resources and time that conventional template brings;
4) environmental protection
This block mould production technique is simple; Not only free from environmental pollution in the making processes; And consume a large amount of industrial waste flyash and white garbage PS; Offset and remove environmental pollution and play a good role, fully implement the policy of resource reutilization, save energy, protection environment, meet the green building material developing direction.
Description of drawings
Below in conjunction with accompanying drawing the present invention is further specified:
Fig. 1 be the EPS light aggregate concrete structure of building mould, performance with and proportioning, manufacture craft concern synoptic diagram;
Fig. 2 builds the mode structure synoptic diagram greatly;
Fig. 3 is little block mode structure synoptic diagram;
Fig. 4 is that the EPS light aggregate concrete is built the molded process flow sheet that is equipped with;
Fig. 5 builds mould A-A schematic cross-section greatly;
Fig. 6 is little block mould A-A schematic cross-section.
Embodiment
Below in conjunction with instance the present invention is carried out detailed explanation.
EPS light aggregate concrete of the present invention is built mould, utilizes waste and old EPS (PS) particle as the aggregate in the concrete, and cement is consolidating material, and adding coal ash, silicon ash, polymer emulsion and water processes, and is a kind of building material.
The technical scheme that the EPS light aggregate concrete is built mould can be divided into four steps; As shown in Figure 4: as at first to be to building the research of mold materials; Carry out mechanical property test, thermal property test through the EPS light aggregate concrete being built mould; And carry out ESEM microscopic appearance viewing test etc., control EPS light aggregate concrete is built the key factor of mould performance and analyzed, and provided optimal proportion.Next is the structure design to the block mould, and content mainly comprises configuration design, the pass design of building mould.The EPS light aggregate concrete is built the configuration design and the pass design of mould will satisfy self-compact concrete in construction to the intensity of block mould and the requirement of deformation performance.Be that the EPS light aggregate concrete is built mould trial-production then, content comprises Mold Making, starting material preparation, builds molded being equipped with and maintenance.Be the arrangement and method for construction design of the EPS light aggregate concrete being built mould at last.
The EPS light aggregate concrete heat-insulating is built the composition material of mould and the structure that construction technology has determined this block mould.This patent has been confirmed the basic proportioning and the construction technology of this block mould according to the characteristics of requirement on the EPS light aggregate concrete heat-insulating block mode structure and composition material.The EPS light aggregate concrete heat-insulating is built in the component of mould, and silicate cement, flyash, silicon ash are gelling material, and river sand is aggregate, and water is this concrete material that mixes and stirs, and EPS particle and perlite are lagging materials, and admixture is a Vinyl Acetate Copolymer solution.
Ordinary Portland cement is the topmost gelling material of EPS light aggregate concrete, and its mechanical property is played significant feature.The ordinary Portland cement label is high more, and volume is many more, and the cubic compressive strength of EPS light aggregate concrete is high more.After flyash mixes the EPS light aggregate concrete, can the structure and the performance of EPS light aggregate concrete be exerted an influence, mainly show shape effect, active effect, three aspects of micro aggregate effect.The silicon ash is a kind of very thin powder, and its median size is littler 100 times than cement., can improve the EPS light aggregate concrete mechanical property, interface structure and the pore structure of EPS light aggregate concrete after mixing the silicon ash.The most important framework material of river sand EPS light aggregate concrete, it plays an important role to the mechanical property of EPS light aggregate concrete with silicate cement jointly.The EPS particle is a most important thermodynamic material in the EPS light aggregate concrete, and as the light aggregate concrete that aggregate is processed, it is low to have density it; The advantage that thermal conductivity is little; And cheap, energy-conservation profit is useless, is all very high lagging material of a kind of economic benefit and social benefit.Pearlstone also is a kind of light heat insulation material, in the EPS light aggregate concrete, mainly plays insulation, fills, suppresses EPS particle come-up.In the water that mix concrete and maintenance are used, must not contain influential cement and normally condense and the hardened detrimental impurity, like grease, carbohydrate, acid-basicity etc.The natural water of the every tap water that can drink and cleaning can both be used for mixing system and curing concrete.The admixture that the EPS light aggregate concrete heat-insulating is built the mould employing is: polyvinyl acetate emulsion, and this admixture belongs to polar molecule, and carbonyl and carboxyl are arranged in its polar molecule; And the wetting ability of this solution is stronger.The most outstanding characteristics of polyvinyl acetate emulsion concrete are: its jelling agent is made up of polymeric dispersions and two kinds of active ingredients of cement.This tackiness agent all has significant effects to this mechanical properties of concrete and interface structure and pore structure.
The preparation technology that the EPS light aggregate concrete heat-insulating is built mould can be divided into stirring technique, moulding process and three steps of maintaining process.Stirring technique is earlier cement, flyash, silicon ash, perlite and portion water to be stirred into low water-cement ratio paste to stir together with the EPS particle again, adds surplus water at last and stirs even.Because EPS particulate density is much littler than sand-cement slurry, when adopting common vibro-moulding process serious demixing phenomenon can appear; Cause EPS light aggregate concrete quality inhomogeneous, greatly reduce its performance.In order to overcome this defective, should adopt low water-cement ratio pressurization and vibration moulding process, cover on the mould with flat board during vibration, exert pressure slightly, plate and mould are vibrated simultaneously.In vibration processes, the EPS particle of come-up receives the pressure limitation of plate, and the EPS uniform particles is distributed.After the closely knit moulding, the stable of its external form can not be guaranteed because the EPS light aggregate concrete pressurizes, therefore demoulding maintenance can not be carried out at once; And after answering curing in the mold to treat that this concrete had certain intensity in 2~3 days, but just demoulding carries out maintenance.
The EPS light aggregate concrete heat-insulating is built the design of mould will follow practicality and principle of sound accounting.So-called practicality, it is tight to guarantee to build the mould piece exactly, not spillage; Guarantee to build the exactness and the simple structure of shape, size and the mutual position of mould each several part, mounting or dismounting are convenient, are convenient to reinforcing bar binding and installation and concrete placement and maintaining process requirement.So-called security is meant that building mould has enough supporting capacitys and rigidity, can bear the weight and the wall pressure of dead weight, reinforcing bar and disturbing concrete, and other load that in construction, is produced; Guarantee in construction process, under all kinds of loading actions, do not destroy; Do not collapse; Distortion is in the scope of allowing, sound construction is stable, guarantees the safety that the workman operates simultaneously.The size of the EPS light aggregate concrete heat-insulating being built mould should have good permutation and combination function, adapts to the various standard widths of a room in an old-style house, depth, floor height and the door-window opening dimensional requirement of architectural design, satisfies and builds mould fissure of displacement overlap joint and structure requirement.The EPS light aggregate concrete heat-insulating is built the pass of mould and the requirement that Thickness Design will be considered structural strength and thermal technology aspect, good mechanical performance and thermal and insulating performance should be arranged.According to these principle of design, this structure design that is incubated the block mould shown in Fig. 2 and 3, is built mould A-A sectional view such as Fig. 5 and shown in Figure 6 for two kinds: build mould greatly and be of a size of: the high 800mm * 300mm of length and width * 200mm; Little block mould is of a size of: the high 400mm * 300mm of length and width * 200mm; The block mould of this form is uniform distribution hole along its length all, and in top and bottom opening; Hole is interconnected, so that the deposit concrete beam and column constitutes recessive framework.The EPS light aggregate concrete heat-insulating is built mould can bring into play function of heat insulation, makes the buildings after building up reach desired energy conservation object, has solved the permanent insulation problem of structure.
Composition and the proportioning that the EPS light aggregate concrete heat-insulating is built mold materials with and moulding, maintaining process determined this concrete structure; And the structure of EPS light-weight aggregate foamed concrete has determined this concrete performance; Relation between them is as shown in Figure 1.Wherein, the mechanical property of EPS light aggregate concrete, thermal property, and the relation between these several aspects of endurance quality is mutual restriction and the several aspects that connect each other; Can not pursue the raising of some aspects performance separately, performance unification that must all respects takes in the EPS light aggregate concrete that just can process excellent property.Mechanical property is the important indicator of EPS light aggregate concrete.This index comprises cubic compressive strength, the folding strength of EPS light aggregate concrete.Wherein cubic compressive strength is of paramount importance index, improves cubical ultimate compression strength and is guaranteeing that EPS light aggregate concrete thermal property is a restricted condition.The use of composite gel materials such as cement, flyash, silicon ash is the basis that guarantees EPS light aggregate concrete mechanical property.Thermal property and endurance quality that the EPS light aggregate concrete is built mould are the basis with the mechanical property, and wherein the size of EPS particulate volume, grating and particle diameter is thermal property and the endurance quality key link that control EPS light aggregate concrete is built mould.
Build the constructional method of mould
Build the mould design characteristic according to the EPS light aggregate concrete, build the mould form of putting and should adopt traverse, it is vertical with body of wall promptly to build the nib position.Table 1 provides the constructional method of this block mould.Should note in the process of this external block mould construction following some: the first, before the base concrete initial set, insert reinforcing bar building the mould middle position, steel bar end should expose surface of base 500mm at least.After solidify on the basis, the lath of finding out the position, corner on its surface and accurately marking wall body line and nail on along wall body line outer rim.The second, begin to build by laying bricks or stones from the nook to the centre.The hole of adjacent block mould should be aimed at, and the block mould that lays should guarantee transverse horizontal, vertical vertical; Horizontal reinforcement is placed by the central authorities of building the horizontal joint of mould at every skin, holds with bar chair; With the vertical reinforcement colligation, before building next skin block mould by laying bricks or stones, place vertical reinforcement then, the welding of reinforcing bar will be satisfied relevant requirements; Build next skin building block at last by laying bricks or stones, and hole should align about building mould.Because characteristics such as the wall of building block is thin, Kong Da; Can not use traditional instrument of building by laying bricks or stones of building brick wall by laying bricks or stones to carry out installing and locating, operations such as more should not cutting a hole, cut it adopts lifting machine to carry out the flowing water construction; Avoid impact in the hoisting process, cause metope damaged.The 3rd, build certain altitude by laying bricks or stones after, should establish to support and carry out the stable of wall body.The building block junction will guarantee tight joint.After building specified altitude by laying bricks or stones, the beginning deposit concrete.Before the cast wall body is carried out the integral body inspection, guarantee the vertical, stable of wall body.
Table 1 is built the constructional method of mould
Embodiment 1
Being used to prepare embodiment 1 insulation, to build the EPS light aggregate concrete proportioning raw materials of mould as shown in table 2:
Table 2EPS light aggregate concrete material fiting ratio (every cubic metre)
Water reducer is a UNF-5 type water reducer, the granularity 0.1 μ m-0.2 μ m of silicon ash, density 2.0-2.4g/cm 3, tap density 200-350kg/m 3, specific surface area 15000-25000m 2/ kg; River sand is selected medium sand for use, and sand coarse aggregate ratio is 20-25% by volume, and tap density is 1225-1325kg/m 3, water-intake rate is 0.95-1.05%; EPS particulate bulk density is 10~20kg/m 3Perlite is a pearlstone.
The preparation method that the EPS light aggregate concrete is built mould is:
According to listed proportioning raw materials in the table 2, stir:
At first cement, flyash, silicon ash, perlite, water reducer, river sand and 20%-30% water are stirred into low water-cement ratio paste;
Adding EPS particle and surplus water are stirred to the EPS particle surface and evenly are wrapped with one deck sand-cement slurry, get mixed material;
Mixed material is transferred in the mould that is positioned on the shaking table, adopted low water-cement ratio pressurization and vibration moulding process, time of vibration exceeds with surperficial bleeding;
In temperature is 25-30 ℃, and humidity is under 100% the condition, curing in the mold 2 days;
The demoulding with the concrete back pad pasting that waters, is 25-30 ℃ in temperature, and humidity is under 100% the condition, to carry out natural curing 14 days; Must be incubated the block mould.
The specification that the mould finished product is built in insulation is of a size of for the big mould of building: the high 800mm * 300mm of length and width * 200mm; Little block mould is of a size of: the high 400mm * 300mm of length and width * 200mm, build mould uniform distribution hole along its length, and described hole is interconnected in block mould short transverse.
The constructional method that mould is built in insulation is following:
1) snap the line location back in building wall position is placed and is built mould, establishes the vertical reinforcement of certain altitude at the middle position of building the nib hole, builds first skin and builds mould;
The hole of adjacent block mould should be aimed at, and the block mould that lays should guarantee transverse horizontal, and vertical vertical, the building block junction will guarantee tight joint; Steel bar end should expose surface of base 500mm at least;
2) place horizontal reinforcement at the middle position of every skin block mould horizontal joint, reinforcing bar supports with bar chair;
3) horizontal reinforcement is fixedly connected with vertical reinforcement;
4) repeating step 1-3, being located along the same line is welded to each other between the vertical reinforcement;
5) build the cast height by laying bricks or stones after, the wall body is carried out integral body inspection, guarantee the wall body vertical, stablize; Deposit concrete then;
Strict control dispensing speed is taked placement layer by layer when building, and builds highly not ultra 1400mm, and reduces building the surge pressure of mould, and mould is out of shape, race is emitted and spillage to avoid building.
Embodiment 2
Being used to prepare embodiment 2 insulations, to build the EPS light aggregate concrete proportioning raw materials of moulds as shown in table 3:
Table 3EPS light aggregate concrete material fiting ratio (every cubic metre)
Water reducer is a UNF-5 type water reducer, the granularity 0.1 μ m-0.2 μ m of silicon ash, density 2.0-2.4g/cm 3, tap density 200-350kg/m 3, specific surface area 15000-25000m 2/ kg; River sand is selected medium sand for use, and sand coarse aggregate ratio is 20-25% by volume, and tap density is 1225-1325kg/m 3, water-intake rate is 0.95-1.05%; EPS particulate bulk density is 10~20kg/m 3Perlite is a pearlstone.
The preparation method of block mould and constructional method are with embodiment 1.
Embodiment 3
Being used to prepare embodiment 3 insulations, to build the EPS light aggregate concrete proportioning raw materials of moulds as shown in table 4:
Table 4EPS light aggregate concrete material fiting ratio (every cubic metre)
Water reducer is a UNF-5 type water reducer, the granularity 0.1 μ m-0.2 μ m of silicon ash, density 2.0-2.4g/cm 3, tap density 200-350kg/m 3, specific surface area 15000-25000m 2/ kg; River sand is selected medium sand for use, and sand coarse aggregate ratio is 20-25% by volume, and tap density is 1225-1325kg/m 3, water-intake rate is 0.95-1.05%; EPS particulate bulk density is 10~20kg/m 3Perlite is a pearlstone.
The preparation method of block mould and constructional method are with embodiment 1.
Table 5 has been listed the physical-mechanical properties that mould is built in embodiment 1-3 insulation.
The physical-mechanical properties that table 5EPS light aggregate concrete is built mould
Invention has been described according to specific exemplary embodiment here.It will be conspicuous under not departing from the scope of the present invention, carrying out suitable replacement to one skilled in the art or revise.Exemplary embodiment only is illustrative, rather than to the restriction of scope of the present invention, scope of the present invention is by appended claim definition.

Claims (9)

1. an EPS light aggregate concrete heat-insulating is built mould, it is characterized in that the molded raw material that is equipped with of said insulation block comprises following parts by weight of component:
2. a kind of EPS light aggregate concrete heat-insulating as claimed in claim 1 is built mould, it is characterized in that said polymer emulsion is a Vinyl Acetate Copolymer solution, and said polymer emulsion solid content is 48-53%, and viscosity is 1.5-4.0Pa.s, and the Ph value is 4-6.
3. a kind of EPS light aggregate concrete heat-insulating as claimed in claim 1 is built mould, it is characterized in that the granularity 0.1 μ m-0.2 μ m of said silicon ash, density 2.0-2.4g/cm 3, tap density 200-350kg/m 3, specific surface area 15000-25000m 2/ kg.
4. a kind of EPS light aggregate concrete heat-insulating as claimed in claim 1 is built mould, it is characterized in that said river sand selects medium sand for use, and sand coarse aggregate ratio is 20-25% by volume, and tap density is 1225-1325kg/m 3, water-intake rate is 0.95-1.05%.
5. a kind of EPS light aggregate concrete heat-insulating as claimed in claim 1 is built mould, it is characterized in that said EPS particulate bulk density is 10~20kg/m 3
6. a kind of EPS light aggregate concrete heat-insulating as claimed in claim 1 is built mould, it is characterized in that said perlite is a pearlstone.
7. a kind of EPS light aggregate concrete heat-insulating as claimed in claim 1 is built mould, it is characterized in that the specification of said block mould, builds mould greatly and is of a size of: the high 1200mm * 300mm of length and width * 550mm; The middle mould of building is of a size of: the high 600mm * 300mm of length and width * 550mm; Little block mould is of a size of: the high 300mm * 300mm of length and width * 550mm; Said block mould is the uniform distribution hole along its length, and described hole is interconnected in block mould short transverse.
8. one kind prepares the method that mould is built in insulation according to claim 1, it is characterized in that said preparation method comprises the steps:
1) stirring technique
According to right 1 described feed proportioning, cement, flyash, silicon ash, perlite, Vinyl Acetate Copolymer solution, river sand and 20%-30% water are stirred into low water-cement ratio paste;
Adding EPS particle and surplus water are stirred to the EPS particle surface and evenly are wrapped with one deck sand-cement slurry;
2) moulding process
Mixed material is transferred in the mould that is positioned on the shaking table, adopted low water-cement ratio pressurization and vibration moulding process, time of vibration exceeds with surperficial bleeding;
3) maintaining process
Curing in the mold 2~3 days;
Wherein: the curing in the mold temperature is 25-30 ℃, and maintenance humidity is 60-100%;
The demoulding, with concrete water the back pad pasting, carried out natural curing 14-30 days;
Wherein: the pad pasting curing temperature is 25-30 ℃, and maintenance humidity is 60-100%.
9. the constructional method like claim 1 or 7 said insulations block moulds is characterized in that said constructional method comprises the steps:
1) snap the line location back in building wall position is placed and is built mould, establishes the vertical reinforcement of certain altitude at the middle position of building the nib hole, builds first skin and builds mould;
The height of said vertical reinforcement is that story height adds lap length, and the hole of adjacent block mould should be aimed at, and the block mould that lays should guarantee transverse horizontal, and vertical vertical, the building block junction will guarantee tight joint; Steel bar end should expose surface of base 500mm at least;
2) place horizontal reinforcement at the middle position of every skin block mould horizontal joint, reinforcing bar supports with bar chair;
3) horizontal reinforcement is fixedly connected with vertical reinforcement;
4) repeating step 1-3, being located along the same line is welded to each other between the vertical reinforcement;
5) build the cast height by laying bricks or stones after, the wall body is carried out integral body inspection, guarantee the wall body vertical, stablize; Deposit concrete then;
Strict control dispensing speed is taked placement layer by layer when building, and builds highly not ultra 1400mm, and reduces building the surge pressure of mould, and mould is out of shape, race is emitted and spillage to avoid building.
CN2012100996795A 2012-04-06 2012-04-06 EPS (Expandable Polystyrene) light aggregate concrete thermal insulation hollow block and construction method thereof Pending CN102674759A (en)

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CN104453067A (en) * 2014-12-12 2015-03-25 广西科技大学 Quick installation structure for polystyrene building block
CN104594592A (en) * 2015-02-03 2015-05-06 西安墙体材料研究设计院 Production process and construction method for integrated filling, heat-preservation and decoration wallboard
CN113045258A (en) * 2021-05-31 2021-06-29 山东盛都节能科技有限公司 Heat-insulating building block and preparation method thereof

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN104453067A (en) * 2014-12-12 2015-03-25 广西科技大学 Quick installation structure for polystyrene building block
CN104594592A (en) * 2015-02-03 2015-05-06 西安墙体材料研究设计院 Production process and construction method for integrated filling, heat-preservation and decoration wallboard
CN113045258A (en) * 2021-05-31 2021-06-29 山东盛都节能科技有限公司 Heat-insulating building block and preparation method thereof

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