CN109057139A - Prefabricated assembled " sandwich " building wall board of one kind and its preparation process - Google Patents
Prefabricated assembled " sandwich " building wall board of one kind and its preparation process Download PDFInfo
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- CN109057139A CN109057139A CN201811011073.5A CN201811011073A CN109057139A CN 109057139 A CN109057139 A CN 109057139A CN 201811011073 A CN201811011073 A CN 201811011073A CN 109057139 A CN109057139 A CN 109057139A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
- E04C2/34—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure composed of two or more spaced sheet-like parts
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/006—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mineral polymers, e.g. geopolymers of the Davidovits type
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/06—Aluminous cements
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/80—Optical properties, e.g. transparency or reflexibility
- C04B2111/82—Coloured materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, 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
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
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- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses a kind of prefabricated assembled " sandwich " building wall boards, it is divided into Side fascia and lining, the Side fascia includes finish coat, insulating layer and structure sheaf, lining includes finish coat, insulating layer and finish coat, the present invention pre-processes smashed stalk, it is divided into alkaline soak, filtering, it is dry, according to the size of crop branch fiber before and after the processing to leachable, absorb water the influence of swelling/Investigation of drying shrinkage of high, stalk partial size and corresponding technological parameter are studied to the influence of stalk/foam concrete composite property, it is preferred that going out corresponding technological parameter and match ratio；Ensure the thermal coefficient and anti-aging property of " sandwich " prefabricated assembled battenboard, based on suitable match ratio, add high molecular material, find out interior page board, insulating layer, optimal bonding mode between outer page board, and solve the problems, such as that stalk is perishable rotten, the stability for keeping stalk, guarantees the mechanical strength and durability of innovative panellised wall.
Description
Technical field
The invention belongs to building materials fields, and in particular to prefabricated assembled " sandwich " building wall board of one kind and its preparation work
Skill.
Background technique
China is large agricultural country, and stalk yield is scored consecutive bumper harvests and substantial increase with agricultural, and annual output is about 6.5
More than hundred million tons account for the 20% ~ 30% of whole world stalk total amount.In order to mitigate the pollution of agricultural wastes, in recent years, various regions formulate and
A series of policies and regulations have been issued and implemented, comprehensive utilization agricultural wastes are encouraged and help.Currently, there are about 30% conducts for stalk
Life in the countryside fuel and the energy, 16% are used as power generation as feed, 15% returning to the field, 4%, 3% are used as Edible Fungi, 2% are used as it
He, and abandon or account for about 30% what field was directly burned, not only burning generates a large amount of black smoke, but also causes to environment
Pollution.Therefore the new application for developing agricultural crop straw, is a urgent problems.
Since the nineties in last century, clay brick is prohibited use, and country encourages to support Development of Novel assembled wall
Body material.Prefabricated construction improves speed of application, reduces wet construction rate.Has the characteristics that the novel building enclosure of heat preservation energy-saving
Material can be divided into Novel brick class, new type block class, board class three categories type.
Building block volume is generally big compared with brick, and the raw material of building block are plain concrete or industrial waste and local material, advantage
It is easy to make, easily tissue production, constructing operation is simple, is not required to large-scale handling equipment, has biggish flexibility.
Meanwhile processing skilful block and not destroy arable land, it is energy saving, be conducive to environmental protection.But the work that building block construction needs
Amount is big, is not suitable for fabricated construction, is not suitable for assembled integrated house.Plate is produced by factory process, transport to scene, into
Row assembled construction and installation, plate can effectively improve working conditions compared with tradition goes along with sb. to guard him building materials, improve construction efficiency, contracting
Casual labourer's phase, and general plate is lighter, compared with clay brick, can reduce structural weight per square meter 18% or so, can increase building usable floor area
7% or so.But battenboard ectonexine is all after separating production, in conjunction at battenboard, many sandwich materials are often produced very
Just it is applied to battenboard after long-time, ectonexine will also carry out specially treated when combining can guarantee the compactness combined, and
And if the sandwich material production time is too long, it is easy to aging, to influence the service life of entire battenboard.
Summary of the invention
To solve the above problems, the invention discloses a kind of prefabricated assembled " sandwich " building wall board and its preparation works
, it can be achieved that prefabrication produces, assembling construction shortens construction period, improves the safety coefficient of building, both saved skill
About building cost and construction cost, and it is convenient for wall body decoration.Not only heat insulation effect is good by the present invention, light-weight, and solves stalk
The problem of environmental pollution of waste, turns waste into wealth, and has and economizes on resources, is energy saving, protecting farmland and protecting environment significantly special
Point；Generate considerable Social benefit and economic benefit.
In order to achieve the above objectives, technical scheme is as follows:
A kind of prefabricated assembled " sandwich " building wall board, is divided into Side fascia and lining, the Side fascia includes finish coat
(outer page board), insulating layer and structure sheaf (interior page board), lining include finish coat, insulating layer and finish coat.
Finish coat, insulating layer and the structure sheaf of Side fascia are respectively 40-60 mm, 30-50mm and 120-200mm thick.
Finish coat, insulating layer and the finish coat of lining are respectively 45 mm, 30mm and 45mm thickness.
A kind of prefabricated assembled " sandwich " building wall board, the proportion of the insulating layer raw material are as follows: geopolymer 50-70
Parts by weight, straw 3-8 parts by weight, paper mill sludge 5-13 parts by weight, water 45-60 parts by weight, expansive agent for cement slurry 1-2 parts by weight, institute
State each raw material weight proportioning of soup processed of geopolymer are as follows: flyash: miberal powder: cement: gypsum 10:6:1:0.4.
The proportion of the finish coat raw material are as follows: cement 5-10 parts by weight, lime 3-6 parts by weight, water 25-50 parts by weight, bubble
Foam 1-3 parts by weight, filler 40-60 parts by weight, additive 0.4-0.6 parts by weight, the filler are as follows: sand, flyash, haydite, broken
Aggregate chips, expanded polystyrene, expanded perlite, benzene take off gram fine aggregate one or more combination, the additive be water-reducing agent,
Waterproofing agent, retarder or coagulant.
The proportion of the structure sheaf raw material are as follows: cement 10-20 parts by weight, middle sand 5-15 parts by weight, water 35-50 parts by weight,
Aggregate 20-40 parts by weight, additive 0.4-0.6 parts by weight.
The aggregate is 15mm rubble below or aggregate chips.
A kind of preparation process of prefabricated assembled " sandwich " building wall board, comprising the following steps:
One, Side fascia is prepared
(1) stalk pretreatment: being crushed to 1-2cm long for stalk, impregnated with dyeing waste water, soaking time 3-5h, then uses 30-
50 DEG C of pure water are cleaned to neutrality, are put into 45-60 DEG C of baking oven dry 1-2h after filtering, are taken out spare；
(2) finish coat is prefabricated: foam being added in the slurry of cement, lime, filler, water and various additives composition, warp
It is spare after mixing；
(3) structure sheaf is prefabricated, spare after cement, middle sand, water, aggregate and additive are mixed；
(4) insulating layer is prefabricated: flyash, miberal powder, cement, gypsum being carried out grinding, specific surface area is made to reach 450-500m2/
Kg is proportionally added into the stalk fibre of paper mill sludge, water, expansive agent for cement slurry and step (1), is mixed evenly；
(5) step (3) structure sheaf raw material is uniformly laid on the intracavitary of molding die, step (4) insulating layer raw material is uniformly laid on
Finish coat raw material upper layer adds step (2) finish coat raw material and is uniformly laid on insulating layer raw material upper layer, and finish coat raw material is high at this time
Degree is the 40-60% of mold height, and mold is put into heating furnace and is heated to 40-55 DEG C, closes thermal insulation foaming, is foamed to wallboard
After mold is filled up in expansion, mold is removed into heating furnace and cooling,
(6) it conserves 3-5 days, it is primary every 6-8h spray, it takes out drying and cuts.
Two, lining is prepared
(1) stalk pretreatment: being crushed to 1-2cm long for stalk, impregnated with dyeing waste water, soaking time 3-5h, then uses 30-
50 DEG C of pure water are cleaned to neutrality, are put into 45-60 DEG C of baking oven dry 1-2h after filtering, are taken out spare；
(2) finish coat is prefabricated: foam being added in the slurry of cement, lime, filler, water and various additives composition, warp
It is spare after mixing；
(3) insulating layer is prefabricated: flyash, miberal powder, cement, gypsum are subjected to grinding, specific surface area is made to reach 450-500m2/kg,
It is proportionally added into the stalk fibre of paper mill sludge, water, expansive agent for cement slurry and step (1), is mixed evenly；
(4) step (2) finish coat raw material is uniformly laid on the intracavitary of molding die, insulating layer raw material is uniformly laid on finish coat original
Expect upper layer, add finish coat raw material and be uniformly laid on insulating layer raw material upper layer, block polymer height is mold height at this time
Mold is put into heating furnace and is heated to 40-55 DEG C by 40-55%, closes thermal insulation foaming, after wallboard foaming and intumescing fills up mold,
Mold is removed into heating furnace and cooling,
(5) it conserves 3-5 days, it is primary every 5-6h spray, it takes out drying and cuts.
Step (1) the dyeing waste water pH value is 10-12.
The beneficial effects of the present invention are:
The present invention pre-processes smashed stalk, is divided into alkaline soak, filtering, drying, according to crops before and after the processing
The size of stalk fibre studies stalk partial size and corresponding technique ginseng to leachable, water suction swelling/Investigation of drying shrinkage of high influence
The influence of several pairs of stalks/foam concrete composite property, preferably corresponding technological parameter and match ratio out；Guarantee " Sanming City
Control " thermal coefficient and anti-aging property of prefabricated assembled battenboard add macromolecule material based on suitable match ratio
Material, finds out interior page board, insulating layer, optimal bonding mode between outer page board, and solves that stalk is perishable rotten to ask
Topic, keeps the stability of stalk, guarantees the mechanical strength and durability of innovative panellised wall.
The present invention impregnates smashed stalk with dyeing waste water, and stalk can catch color, the wallboard processed
Middle layer just has corresponding color, overcomes the machine-made canescence of wallboard, beautiful and generous, and it is bright to increase a thread for environment
Color.
The present invention makes full use of agricultural wastes straw, not only can use waste and develops waste utilization, but also has
It economizes on resources, is energy saving, protecting farmland and protecting the distinguishing feature of environment, having expanded the application neck of stalk and foam concrete
Domain range, more designing and developing for prefabrication wall heat insulation material provide new method new approaches；Paper mill sludge energy
Enough enhancings do not crack to concrete structure durability, extend the service life of combined wall board；It is replaced with straw foam concrete
Traditional EPS sheet can significantly improve the anti-aging and thermal and insulating performance of prefabrication wall heat insulation material.
The density of wallboard of the present invention is less than 300kg/m3, thermal coefficient is less than 0.05W/ (m2K), coefficient of softing
Greater than 0.9, drying shrinkage value is less than 0.5mm/m, and flexural strength is greater than 0.5MPa.
Specific embodiment
With reference to embodiment, the present invention is furture elucidated, it should be understood that following specific embodiments are only used for
It is bright the present invention rather than limit the scope of the invention.
Embodiment 1
A kind of prefabricated assembled " sandwich " building exterior wall panel, including finish coat (outer page board), insulating layer and structure sheaf (interior page
Plate), respectively 40 mm, 50mm and 120mm are thick；The proportion of the insulating layer raw material are as follows: 70 parts by weight of geopolymer, 3 weight of straw
Measure part, 13 parts by weight of paper mill sludge, 45 parts by weight of water, 2 parts by weight of expansive agent for cement slurry, each raw material weight proportioning of soup processed of geopolymer
Are as follows: flyash: miberal powder: cement: gypsum 10:6:1:0.4.
The proportion of the finish coat raw material are as follows: 5 parts by weight of cement, 6 parts by weight of lime, 25 parts by weight of water, 3 weight of foam
Part, 40 parts by weight of filler, 0.6 parts by weight of additive, the filler are as follows: sand, flyash, haydite, stone fragment, expansion polyphenyl second
Alkene, expanded perlite, benzene take off gram fine aggregate one or more combination, the additive be water-reducing agent, waterproofing agent, retarder or
Coagulant.
The proportion of the structure sheaf raw material are as follows: 10 parts by weight of cement, middle 15 parts by weight of sand, 35 parts by weight of water, 40 weight of aggregate
Part, 0.4 parts by weight of additive are measured, the aggregate is 15mm rubble below or aggregate chips.
A kind of preparation process of prefabricated assembled " sandwich " building exterior wall panel, comprising the following steps:
(1) stalk pretreatment: being crushed to 2cm long for stalk, is that 10 dyeing waste waters are impregnated with pH value, soaking time 3h, then
It is cleaned with 50 DEG C of pure water to neutrality, is put into 45 DEG C of baking oven dry 2h after filtering, takes out spare；
(2) finish coat is prefabricated: foam being added in the slurry of cement, lime, filler, water and various additives composition, warp
It is spare after mixing；
(3) structure sheaf is prefabricated, spare after cement, middle sand, water, aggregate and additive are mixed；
(4) insulating layer is prefabricated: flyash, miberal powder, cement, gypsum being carried out grinding, so that specific surface area is reached 450m2/kg, presses
The stalk fibre of paper mill sludge, water, expansive agent for cement slurry and step (1) is added in ratio, is mixed evenly；
(5) step (3) structure sheaf raw material is uniformly laid on the intracavitary of molding die, step (4) insulating layer raw material is uniformly laid on
Finish coat raw material upper layer adds step (2) finish coat raw material and is uniformly laid on insulating layer raw material upper layer, and finish coat raw material is high at this time
Degree is the 60% of mold height, and mold is put into heating furnace and is heated to 40 DEG C, closes thermal insulation foaming, fills out to wallboard foaming and intumescing
After full mold, mold is removed into heating furnace and cooling,
(6) it conserves 5 days, it is primary every 6h spray, it takes out drying and cuts.
The density 280kg/m of wallboard3, thermal coefficient 0.04W/ (m2K), coefficient of softing 1.05, drying shrinkage value 0.3mm/
M, flexural strength 0.8MPa.
Embodiment 2
A kind of prefabricated assembled " sandwich " building exterior wall panel, including finish coat (outer page board), insulating layer and structure sheaf (interior page
Plate), each layer is respectively 60 mm, 30mm and 200mm thickness；The proportion of the insulating layer raw material are as follows: 50 parts by weight of geopolymer, straw
8 parts by weight of bar, 5 parts by weight of paper mill sludge, 60 parts by weight of water, 1 parts by weight of expansive agent for cement slurry, each raw material weight of geopolymer
Proportion are as follows: flyash: miberal powder: cement: gypsum 10:6:1:0.4.
The proportion of the finish coat raw material are as follows: 10 parts by weight of cement, 3 parts by weight of lime, 50 parts by weight of water, 1 weight of foam
Part, 60 parts by weight of filler, 0.4 parts by weight of additive, the filler are as follows: sand, flyash, haydite, stone fragment, expansion polyphenyl second
Alkene, expanded perlite, benzene take off gram fine aggregate one or more combination, the additive be water-reducing agent, waterproofing agent, retarder or
Coagulant.
The proportion of the structure sheaf raw material are as follows: 20 parts by weight of cement, middle 5 parts by weight of sand, 50 parts by weight of water, 20 weight of aggregate
Part, 0.6 parts by weight of additive, the aggregate is 15mm rubble below or aggregate chips.
A kind of preparation process of prefabricated assembled " sandwich " building exterior wall panel, comprising the following steps:
(1) stalk pretreatment: being crushed to 1cm long for stalk, is that 12 dyeing waste waters are impregnated with pH value, soaking time 5h, then
It is cleaned with 30 DEG C of pure water to neutrality, is put into 60 DEG C of baking oven dry 1h after filtering, takes out spare；
(2) finish coat is prefabricated: foam being added in the slurry of cement, lime, filler, water and various additives composition, warp
It is spare after mixing；
(3) structure sheaf is prefabricated, spare after cement, middle sand, water, aggregate and additive are mixed；
(4) insulating layer is prefabricated: flyash, miberal powder, cement, gypsum being carried out grinding, so that specific surface area is reached 500m2/kg, presses
The stalk fibre of paper mill sludge, water, expansive agent for cement slurry and step (1) is added in ratio, is mixed evenly；
(5) step (3) structure sheaf raw material is uniformly laid on the intracavitary of molding die, step (4) insulating layer raw material is uniformly laid on
Finish coat raw material upper layer adds step (2) finish coat raw material and is uniformly laid on insulating layer raw material upper layer, and finish coat raw material is high at this time
Degree is the 40% of mold height, and mold is put into heating furnace and is heated to 55 DEG C, closes thermal insulation foaming, fills out to wallboard foaming and intumescing
After full mold, mold is removed into heating furnace and cooling,
(6) it conserves 3 days, it is primary every 8h spray, it takes out drying and cuts.
The density 265kg/m of Side fascia3, thermal coefficient 0.04W/ (m2K), coefficient of softing 1.0, drying shrinkage value
0.4mm/m, flexural strength 0.6MPa.
Embodiment 3
A kind of prefabricated assembled " sandwich " inner wall of building plate, including finish coat, insulating layer and finish coat, thickness are respectively 45
Mm, 30mm and 45mm；The proportion of the insulating layer raw material are as follows: 50 parts by weight of geopolymer, 8 parts by weight of straw, 5 weight of paper mill sludge
Measure part, 60 parts by weight of water, 1 parts by weight of expansive agent for cement slurry, each raw material weight proportioning of soup processed of geopolymer are as follows: flyash: miberal powder: water
Mud: gypsum 10:6:1:0.4.
The proportion of the finish coat raw material are as follows: 10 parts by weight of cement, 3 parts by weight of lime, 50 parts by weight of water, 1 weight of foam
Part, 60 parts by weight of filler, 0.4 parts by weight of additive, the filler are as follows: sand, flyash, haydite, stone fragment, expansion polyphenyl second
Alkene, expanded perlite, benzene take off gram fine aggregate one or more combination, the additive be water-reducing agent, waterproofing agent, retarder or
Coagulant.
A kind of preparation process of prefabricated assembled " sandwich " inner wall of building plate, comprising the following steps:
(1) stalk pretreatment: being crushed to 2cm long for stalk, is that 10 dyeing waste waters are impregnated with pH value, soaking time 3h, then
It is cleaned with 50 DEG C of pure water to neutrality, is put into 45 DEG C of baking oven dry 2h after filtering, takes out spare；
(2) finish coat is prefabricated: foam being added in the slurry of cement, lime, filler, water and various additives composition, warp
It is spare after mixing；
(3) insulating layer is prefabricated: by flyash, miberal powder, cement, gypsum carry out grinding, so that specific surface area is reached 450m2/kg, by than
The stalk fibre of paper mill sludge, water, expansive agent for cement slurry and step (1) is added in example, is mixed evenly；
(4) step (2) finish coat raw material is uniformly laid on the intracavitary of molding die, insulating layer raw material is uniformly laid on finish coat original
Expect upper layer, add finish coat raw material and be uniformly laid on insulating layer raw material upper layer, block polymer height is mold height at this time
55%, mold is put into heating furnace and is heated to 40 DEG C, thermal insulation foaming is closed, after wallboard foaming and intumescing fills up mold, by mold
Heating furnace and cooling are removed,
(5) it conserves 5 days, it is primary every 5h spray, it takes out drying and cuts.
The density 240kg/m of lining3, thermal coefficient 0.03W/ (m2K), coefficient of softing 1.2, drying shrinkage value
0.4mm/m, flexural strength 0.55MPa.
Embodiment 4
A kind of prefabricated assembled " sandwich " inner wall of building plate, including finish coat, insulating layer and finish coat, thickness are respectively 45
Mm, 30mm and 45mm.The proportion of the insulating layer raw material are as follows: 70 parts by weight of geopolymer, 3 parts by weight of straw, paper mill sludge 13
Parts by weight, 45 parts by weight of water, 2 parts by weight of expansive agent for cement slurry, each raw material weight proportioning of soup processed of geopolymer are as follows: flyash: miberal powder:
Cement: gypsum 10:6:1:0.4.
The proportion of the finish coat raw material are as follows: 5 parts by weight of cement, 6 parts by weight of lime, 25 parts by weight of water, 3 weight of foam
Part, 40 parts by weight of filler, 0.6 parts by weight of additive, the filler are as follows: sand, flyash, haydite, stone fragment, expansion polyphenyl second
Alkene, expanded perlite, benzene take off gram fine aggregate one or more combination, the additive be water-reducing agent, waterproofing agent, retarder or
Coagulant.
A kind of preparation process of prefabricated assembled " sandwich " inner wall of building plate, comprising the following steps:
(1) stalk pretreatment: being crushed to 1cm long for stalk, is that 12 dyeing waste waters are impregnated with pH value, soaking time 5h, then
It is cleaned with 30 DEG C of pure water to neutrality, is put into 60 DEG C of baking oven dry 1h after filtering, takes out spare；
(2) finish coat is prefabricated: foam being added in the slurry of cement, lime, filler, water and various additives composition, warp
It is spare after mixing；
(3) insulating layer is prefabricated: by flyash, miberal powder, cement, gypsum carry out grinding, so that specific surface area is reached 500m2/kg, by than
The stalk fibre of paper mill sludge, water, expansive agent for cement slurry and step (1) is added in example, is mixed evenly；
(4) step (2) finish coat raw material is uniformly laid on the intracavitary of molding die, insulating layer raw material is uniformly laid on finish coat original
Expect upper layer, add finish coat raw material and be uniformly laid on insulating layer raw material upper layer, block polymer height is mold height at this time
40%, mold is put into heating furnace and is heated to 55 DEG C, thermal insulation foaming is closed, after wallboard foaming and intumescing fills up mold, by mold
Heating furnace and cooling are removed,
(5) it conserves 3 days, it is primary every 6h spray, it takes out drying and cuts.
The density 245kg/m of wallboard3, thermal coefficient 0.03W/ (m2K), coefficient of softing 1.1, drying shrinkage value 0.38mm/
M, flexural strength 0.6MPa.
The technical means disclosed in the embodiments of the present invention is not limited only to technological means disclosed in above embodiment, further includes
Technical solution consisting of any combination of the above technical features.
Claims (9)
1. a kind of prefabricated assembled " sandwich " building wall board, it is characterised in that: be divided into Side fascia and lining, the exterior wall
Plate includes finish coat, insulating layer and structure sheaf, and lining includes finish coat, insulating layer and finish coat.
2. prefabricated assembled " sandwich " building wall board of one kind according to claim 1, it is characterised in that: Side fascia
Finish coat, insulating layer and structure sheaf are respectively 40-60 mm, 30-50mm and 120-200mm thick.
3. prefabricated assembled " sandwich " building wall board of one kind according to claim 1, it is characterised in that: lining
Finish coat, insulating layer and finish coat are respectively 45 mm, 30mm and 45mm thickness.
4. prefabricated assembled " sandwich " building wall board of one kind according to claim 1, it is characterised in that: the heat preservation
The proportion of layer raw material are as follows: geopolymer 50-70 parts by weight, straw 3-8 parts by weight, paper mill sludge 5-13 parts by weight, water 45-60 weight
Part is measured, expansive agent for cement slurry 1-2 parts by weight, each raw material weight proportioning of soup processed of geopolymer are as follows: flyash: miberal powder: cement: gypsum is
10:6:1:0.4。
5. prefabricated assembled " sandwich " building wall board of one kind according to claim 1, it is characterised in that: the facing
The proportion of layer raw material are as follows: cement 5-10 parts by weight, lime 3-6 parts by weight, water 25-50 parts by weight, foam 1-3 parts by weight, filler
40-60 parts by weight, additive 0.4-0.6 parts by weight, the filler are as follows: sand, flyash, haydite, stone fragment, expansion polyphenyl second
Alkene, expanded perlite, benzene take off gram fine aggregate one or more combination, the additive be water-reducing agent, waterproofing agent, retarder or
Coagulant.
6. prefabricated assembled " sandwich " building wall board of one kind according to claim 1, it is characterised in that: the structure
The proportion of layer raw material are as follows: cement 10-20 parts by weight, middle sand 5-15 parts by weight, water 35-50 parts by weight, aggregate 20-40 parts by weight,
Additive 0.4-0.6 parts by weight.
7. prefabricated assembled " sandwich " building wall board of one kind according to claim 6, it is characterised in that: the aggregate
For 15mm rubble below or aggregate chips.
8. a kind of preparation process of prefabricated assembled " sandwich " building wall board, it is characterised in that: the following steps are included:
One, Side fascia is prepared
(1) stalk pretreatment: being crushed to 1-2cm long for stalk, impregnated with dyeing waste water, soaking time 3-5h, then uses 30-
50 DEG C of pure water are cleaned to neutrality, are put into 45-60 DEG C of baking oven dry 1-2h after filtering, are taken out spare；
(2) finish coat is prefabricated: foam being added in the slurry of cement, lime, filler, water and various additives composition, warp
It is spare after mixing；
(3) structure sheaf is prefabricated, spare after cement, middle sand, water, aggregate and additive are mixed；
(4) insulating layer is prefabricated: flyash, miberal powder, cement, gypsum being carried out grinding, specific surface area is made to reach 450-500m2/
Kg is proportionally added into the stalk fibre of paper mill sludge, water, expansive agent for cement slurry and step (1), is mixed evenly；
(5) step (3) structure sheaf raw material is uniformly laid on the intracavitary of molding die, step (4) insulating layer raw material is uniformly laid on
Finish coat raw material upper layer adds step (2) finish coat raw material and is uniformly laid on insulating layer raw material upper layer, and finish coat raw material is high at this time
Degree is the 40-60% of mold height, and mold is put into heating furnace and is heated to 40-55 DEG C, closes thermal insulation foaming, is foamed to wallboard
After mold is filled up in expansion, mold is removed into heating furnace and cooling,
(6) it conserves 3-5 days, it is primary every 6-8h spray, it takes out drying and cuts；
Two, lining is prepared
(1) stalk pretreatment: being crushed to 1-2cm long for stalk, impregnated with dyeing waste water, soaking time 3-5h, then uses 30-
50 DEG C of pure water are cleaned to neutrality, are put into 45-60 DEG C of baking oven dry 1-2h after filtering, are taken out spare；
(2) finish coat is prefabricated: foam being added in the slurry of cement, lime, filler, water and various additives composition, warp
It is spare after mixing；
(3) insulating layer is prefabricated: flyash, miberal powder, cement, gypsum are subjected to grinding, specific surface area is made to reach 450-500m2/kg,
It is proportionally added into the stalk fibre of paper mill sludge, water, expansive agent for cement slurry and step (1), is mixed evenly；
(4) step (2) finish coat raw material is uniformly laid on the intracavitary of molding die, insulating layer raw material is uniformly laid on finish coat original
Expect upper layer, add finish coat raw material and be uniformly laid on insulating layer raw material upper layer, block polymer height is mold height at this time
Mold is put into heating furnace and is heated to 40-55 DEG C by 40-55%, closes thermal insulation foaming, after wallboard foaming and intumescing fills up mold,
Mold is removed into heating furnace and cooling,
Maintenance 3-5 days, it is primary every 5-6h spray, it takes out drying and cuts.
9. the preparation process of prefabricated assembled " sandwich " building wall board of one kind according to claim 1, feature exist
In: the dyeing waste water pH value is 10-12.
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| CN113585574A (en) * | 2021-08-30 | 2021-11-02 | 重庆中科建筑科技(集团)有限公司 | Floor heat-preservation sound-insulation board and processing method thereof |
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Application publication date: 20181221 |