CN1987008A - Double layer sandwich foamed concrete composite solid wall plate - Google Patents

Double layer sandwich foamed concrete composite solid wall plate Download PDF

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Publication number
CN1987008A
CN1987008A CNA2006100545723A CN200610054572A CN1987008A CN 1987008 A CN1987008 A CN 1987008A CN A2006100545723 A CNA2006100545723 A CN A2006100545723A CN 200610054572 A CN200610054572 A CN 200610054572A CN 1987008 A CN1987008 A CN 1987008A
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China
Prior art keywords
cement
kilograms
flyash
river sand
water
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Granted
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CNA2006100545723A
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Chinese (zh)
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CN100537966C (en
Inventor
徐君元
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Guizhou Huajun Group Energy-Saving Environmental Protection Materials Co.,Ltd.
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徐君元
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Priority to CNB2006100545723A priority Critical patent/CN100537966C/en
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Publication of CN100537966C publication Critical patent/CN100537966C/en
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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
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
    • 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
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
    • C04B41/5076—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with masses bonded by inorganic cements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Laminated Bodies (AREA)
  • Panels For Use In Building Construction (AREA)

Abstract

A dual-layer sandwich-type solid wall slab is composed of two surficial thin cement slabs and a foam concrete core layer. It is proportionally made of fast hardening sulphoaluminate cement, powdered coal ash, river sand, fibers, hydrogen peroxide as foaming agent, and stabilizer. Its advantages are light weight, high surface strength and high insulating effect.

Description

Double layer sandwich foamed concrete composite solid wall plate
Technical field
The invention belongs to building material technical field, be specifically related to a kind of concrete products.
Background technology
Along with the development of urban architecture, building function constantly perfect, people have proposed new requirement to the lightweight of materials for wall, environmental protection, energy-conservation, thermal insulation, sound insulation, fire prevention etc.Traditional with the clay is primary raw material, with the walling of sintering process production eliminating of being forced to property gradually, the light-weight environment-friendly materials for wall that replaces is of a great variety, as building-block, gypsum hollow lath, polystyrene foam filled board, GRC hollow lath, fly ash hollow batten, chloro-magnesium cement string hollow lath, Autoclaved aerated concrete slabs etc., though above-mentioned light-weight wall material each has length, all comes with some shortcomings.As building-block, need sintering, energy consumption is big, contaminated environment, Production Time is long; The gypsum hollow lath water proofing property is poor, and fire rating is low; Polystyrene foam filled board weight is big, and fire rating is low, can emit polystyrene poison gas when catching fire burning; GRC hollow lath surface strength is low, damages big in the transportation; Chloro-magnesium cement string hollow lath is to be main material with magnesia and magnesium chloride, the early strength height, and later strength is not enough, and water proofing property is poor, and distortion is big, can occur returning the halogen phenomenon under situation about having a humid climate, and influences quality of item and outward appearance.
Summary of the invention
The present invention is directed to the prior art above shortcomings, a kind of double layer sandwich foamed concrete composite solid wall plate is proposed, reach than the better lightweight of existing walling, fire prevention, waterproof, nontoxic, energy-conservation, heat insulating effect, and technology is simple, steady quality, production efficiency height.
Technic relization scheme of the present invention is as follows:
The double layer sandwich foamed concrete composite solid wall plate that the present invention proposes is to be main material with quick hardening sulphoaluminate cement, flyash and river sand, in 100 parts of total amounts, wherein quick hardening sulphoaluminate cement 30-60 part, flyash 20-30 part, river sand 20-40 part, other has the fiber with respect to main material 0.1-0.2 part, each 1-1.5 part of blowing agent hydrogen peroxide and stabilizing agent.Above-mentioned raw materials is prepared the acquisition wallboard in order to following method:
(1) earlier quick hardening sulphoaluminate cement, flyash and river sand are pressed water/binder ratio 1: 0.3-0.6 and mixed, stir and make slurry, put into mould, add the layer of glass grid cloth, make the cement plate of 5-10mm;
(2) treat the cement plate initial set after, the quick hardening sulphoaluminate cement, flyash, river sand and the fiber that prepare by metering mix by water/binder ratio 1: 0.3-0.6, stir, again by being metered into blowing agent and stabilizing agent, stir, water after 1-2 minute on the first floor cement plate;
(3) cement paste to be watered foamed 25-30 minute, again the foaming concrete surface upper berth layer of glass grid cloth, the cement paste that will mix by quick hardening sulphoaluminate cement, flyash, river sand and the water that metering prepares is cast on the fiberglass gridding cloth again, carry out floating receipts light, make the thick second layer cement plate of 5-10mm, natural curing 3-4 hour demoulding, maintenance promptly get the wallboard finished product after 7 days.
The employing that the present invention chooses with technology for each raw material is based on following consideration:
Cement is the primary raw material that this wallboard obtains intensity, in order to reach the high strength of product, and shortens demould time, accelerates the die production cycle, and the present invention has selected quick hardening sulphoaluminate cement for use.
Flyash is as packing material in the present invention, and the particle in the flyash is in the majority with the spherical glass body, and specific area is big, is lightweight filler preferably, and twice laid can reduce product cost, also substitutes in this product and uses as water reducing agent.
River sand is the fine aggregate as this walling, has humidification.
The present invention has adopted fiberglass gridding cloth as reinforcing material, can improve anti-folding, tension and the anti-crack ability of product.
Blowing agent and stabilizing agent are the important component of foam cement core in the present invention, it is big and rapidly and the little characteristics of consumption that blowing agent must possess gas forming amount, after slip is gone into mould, blowing agent is transferred out gas at chemical reaction, material is expanded rapidly, is cement sclerosis simultaneously in expansion process, makes very fast countless sealings, the bubble of uniform size that forms stability of slip, can form the system of solid-liquid-gas three coexistence when foaming, these all depend on choosing blowing agent and stabilizing agent.Prior art proposed various schemes to the blowing agent of light-weight wall material, for example gas concrete adopts aluminium powder, get angry with calcium carbide, or make hydrogen etc. with some reactive metals, but all there are many shortcomings easily such as cost, gas production and technology controlling and process in they, in large-scale production with not by the difficult people's will to the greatest extent of steam-cured process result of use.The present invention has adopted hydrogen peroxide as blowing agent, be used stabilizing agent simultaneously, as select rhenocure CA or polyvinyl alcohol etc. for use, anhydrous calcium sulphoaluminate reaction in blowing agent and the cement can be emitted a large amount of gas, make cement and expanded, stabilizing agent makes bubble obtain the stable of certain hour again simultaneously, and bubble can not break before the cement initial set, thereby improves the quality of product.
This also can add metallic soap, paraffin, gelatin or silicone oil simultaneously and make waterproof agent when adding blowing agent and stabilizing agent.To strengthen the water resistance of product.Add sodium methyl silicate, sodium ethylsiliconate or poly-ethyl hydroxyl siloxanes and cook activating agent, with the easy property of the work of refinforced cement.Their addition is respectively the 1-2 part with respect to main material.
Advantage of the present invention is as follows:
1, having adopted quick hardening sulphoaluminate cement, flyash etc. is main material, and demould time is fast, the production efficiency height, and cost of production is low.
2, adopted the double layer sandwich structure, the centre is an expansion type, both sides are enhancement Layer, the two sides is the intensity height, and the bubble of centre played sealing process, overcome the weakness of existing light hollow slab water proofing property, sound insulation property, heat insulation property difference, with like product is relatively lighter with volume unit weight, surface strength is higher, heat insulating effect is better.
3, production technology is simple, adopts natural curing, and it is low to consume energy, and equipment investment is few.
The specific embodiment
Embodiment 1:
(1) earlier 30 kilograms in 30 kilograms of quick hardening sulphoaluminate cements, 40 kilograms in flyash and river sand are mixed with 60 kg of water, slurry is made in stirring, puts into mould, adds the layer of glass grid cloth, makes the cement plate of 5-10mm.
(2) treat the cement plate initial set after, again 0.2 kilogram of 30 kilograms of quick hardening sulphoaluminate cement, 40 kilograms in flyash, 30 kilograms in river sand, PAV fiber are mixed with 60 kg of water, stir, add 1 kilogram of hydrogen peroxide, 1 kilogram of rhenocure CA again, 2 kilograms of metallic soaps, 1.5 kilograms of sodium methyl silicates, stir, water after 1-2 minute on the first floor cement plate;
(3) cement paste to be watered foamed 25-30 minute, again the foaming concrete surface upper berth layer of glass grid cloth, to prepare the slurry identical with step 1 again is cast on the fiberglass gridding cloth, carry out floating receipts light, make second layer cement plate, the about 5-10mm of thickness, natural curing 3-4 hour demoulding, maintenance promptly gets the wallboard finished product after 7 days.
Embodiment 2:
(1) earlier 30 kilograms in 35 kilograms of quick hardening sulphoaluminate cements, 35 kilograms in flyash and river sand are mixed with 60 kg of water, slurry is made in stirring, puts into mould, adds the layer of glass grid cloth, makes the cement plate of 5-10mm.
(2) treat the cement plate initial set after, again 0.2 kilogram of 335 kilograms of quick hardening sulphoaluminate cement, 35 kilograms in flyash, 30 kilograms in river sand, PAV fiber are mixed with 60 kg of water, stir, add 1 kilogram of hydrogen peroxide, 1 kilogram of rhenocure CA again, 2 kilograms in paraffin, 1 kilogram of sodium methyl silicate, stir, water on the first floor cement plate after 1-2 minute.
(3) cement paste to be watered foamed 25-30 minute, again the foaming concrete surface upper berth layer of glass grid cloth, to prepare the slurry identical with step 1 again is cast on the fiberglass gridding cloth, carry out floating receipts light, make second layer cement plate, the about 5-10mm of thickness, natural curing 3-4 hour demoulding, maintenance promptly gets the wallboard finished product after 7 days.
Embodiment 3:
(1) earlier 30 kilograms in 40 kilograms of quick hardening sulphoaluminate cements, 30 kilograms in flyash and river sand are mixed with 60 kg of water, slurry is made in stirring, puts into mould, adds the layer of glass grid cloth, makes the cement plate of 5-10mm.
(2) treat the cement plate initial set after, again 0.2 kilogram of 40 kilograms of quick hardening sulphoaluminate cement, 30 kilograms in flyash, 30 kilograms in river sand, PAV fiber are mixed with 60 kg of water, stir, add 1 kilogram of hydrogen peroxide, 1 kilogram of polyvinyl alcohol again, 1 kilogram in gelatin, 1 kilogram of sodium ethylsiliconate, stir, water after 1-2 minute on the first floor cement plate;
(3) cement paste to be watered foamed 25-30 minute, again the foaming concrete surface upper berth layer of glass grid cloth, to prepare the slurry identical with step 1 again is cast on the fiberglass gridding cloth, carry out floating receipts light, make second layer cement plate, the about 5-10mm of thickness, natural curing 3-4 hour demoulding, maintenance promptly gets the wallboard finished product after 7 days.
Embodiment 4:
(1) earlier 37 kilograms in 43 kilograms of quick hardening sulphoaluminate cements, 30 kilograms in flyash and river sand are mixed with 60 kg of water, slurry is made in stirring, puts into mould, adds the layer of glass grid cloth, makes the cement plate of 5-10mm.
(2) treat the cement plate initial set after, again 0.2 kilogram of 30 kilograms of quick hardening sulphoaluminate cement, 40 kilograms in flyash, 30 kilograms in river sand, PAV fiber are mixed with 60 kg of water, stir, add 1 kilogram of hydrogen peroxide, 1 kilogram of rhenocure CA again, 1 kilogram of metallic soap, 1 kilogram of sodium ethylsiliconate, stir, water after 1-2 minute on the first floor cement plate;
(3) cement paste to be watered foamed 25-30 minute, again the foaming concrete surface upper berth layer of glass grid cloth, to prepare the slurry identical with step 1 again is cast on the fiberglass gridding cloth, carry out floating receipts light, make second layer cement plate, the about 5-10mm of thickness, natural curing 3-4 hour demoulding, maintenance promptly gets the wallboard finished product after 7 days.
Embodiment 5:
(1) earlier 25 kilograms in 45 kilograms of quick hardening sulphoaluminate cements, 30 kilograms in flyash and river sand are mixed with 60 kg of water, slurry is made in stirring, puts into mould, adds the layer of glass grid cloth, makes the cement plate of 5-10mm.
(2) treat the cement plate initial set after, again 0.2 kilogram of 30 kilograms of quick hardening sulphoaluminate cement, 40 kilograms in flyash, 30 kilograms in river sand, PAV fiber are mixed with 60 kg of water, stir, add 1 kilogram of hydrogen peroxide, 1 kilogram of polyvinyl alcohol again, 1 kilogram of silicone oil, 1 kilogram of poly-ethyl hydroxyl siloxanes, stir, water after 1-2 minute on the first floor cement plate;
(3) cement paste to be watered foamed 25-30 minute, again the foaming concrete surface upper berth layer of glass grid cloth, to prepare the slurry identical with step 1 again is cast on the fiberglass gridding cloth, carry out floating receipts light, make second layer cement plate, the about 5-10mm of thickness, natural curing 3-4 hour demoulding, maintenance promptly gets the wallboard finished product after 7 days.
Embodiment 6:
(1) earlier 27 kilograms in 48 kilograms of quick hardening sulphoaluminate cements, 25 kilograms in flyash and river sand are mixed with 60 kg of water, slurry is made in stirring, puts into mould, adds the layer of glass grid cloth, makes the cement plate of 5-10mm.
(2) treat the cement plate initial set after, again 0.2 kilogram of 48 kilograms of quick hardening sulphoaluminate cement, 25 kilograms in flyash, 27 kilograms in river sand, PAV fiber are mixed with 60 kg of water, stir, add 1.2 kilograms of hydrogen peroxide, 1 kilogram of rhenocure CA again, 2 kilograms of silicone oil, stir, water after 1-2 minute on the first floor cement plate;
(3) cement paste to be watered foamed 25-30 minute, again the foaming concrete surface upper berth layer of glass grid cloth, to prepare the slurry identical with step 1 again is cast on the fiberglass gridding cloth, carry out floating receipts light, make second layer cement plate, the about 5-10mm of thickness, natural curing 3-4 hour demoulding, maintenance promptly gets the wallboard finished product after 7 days.
Embodiment 7:
(1) earlier 25 kilograms in 50 kilograms of quick hardening sulphoaluminate cements, 25 kilograms in flyash and river sand are mixed with 60 kg of water, slurry is made in stirring, puts into mould, adds the layer of glass grid cloth, makes the cement plate of 5-10mm.
(2) treat the cement plate initial set after, again 0.1 kilogram of 50 kilograms of quick hardening sulphoaluminate cement, 25 kilograms in flyash, 25 kilograms in river sand, PAV fiber are mixed with 60 kg of water, stir, add hydrogen peroxide 1 again.1 kilogram of 2 kilogram, rhenocure CA stir, and water after 1-2 minute on the first floor cement plate;
(3) cement paste to be watered foamed 25-30 minute, again the foaming concrete surface upper berth layer of glass grid cloth, to prepare the slurry identical with step 1 again is cast on the fiberglass gridding cloth, carry out floating receipts light, make second layer cement plate, the about 5-10mm of thickness, natural curing 3-4 hour demoulding, maintenance promptly gets the wallboard finished product after 7 days.
Embodiment 8:
(1) earlier 20 kilograms in 55 kilograms of quick hardening sulphoaluminate cements, 25 kilograms in flyash and river sand are mixed with 60 kg of water, slurry is made in stirring, puts into mould, adds the layer of glass grid cloth, makes the cement plate of 5-10mm.
(2) treat the cement plate initial set after, again 0.1 kilogram of 30 kilograms of quick hardening sulphoaluminate cement, 40 kilograms in flyash, 30 kilograms in river sand, PAV fiber are mixed with 60 kg of water, stir, add 1.5 kilograms of hydrogen peroxide, 1 kilogram of polyvinyl alcohol again, stir, water after 1-2 minute on the first floor cement plate;
(3) cement paste to be watered foamed 25-30 minute, again the foaming concrete surface upper berth layer of glass grid cloth, to prepare the slurry identical with step 1 again is cast on the fiberglass gridding cloth, carry out floating receipts light, make second layer cement plate, the about 5-10mm of thickness, natural curing 3-4 hour demoulding, maintenance promptly gets the wallboard finished product after 7 days.
Embodiment 9:
(1) earlier 20 kilograms in 60 kilograms of quick hardening sulphoaluminate cements, 20 kilograms in flyash and river sand are mixed with 60 kg of water, slurry is made in stirring, puts into mould, adds the layer of glass grid cloth, makes the cement plate of 5-10mm.
(2) treat the cement plate initial set after, again 0.1 kilogram of 60 kilograms of quick hardening sulphoaluminate cement, 20 kilograms in flyash, 20 kilograms in river sand, PAV fiber are mixed with 60 kg of water, stir, add 1.5 kilograms of hydrogen peroxide, 1 kilogram of rhenocure CA again, stir, water after 1-2 minute on the first floor cement plate;
(3) cement paste to be watered foamed 25-30 minute, again the foaming concrete surface upper berth layer of glass grid cloth, to prepare the slurry identical with step 1 again is cast on the fiberglass gridding cloth, carry out floating receipts light, make second layer cement plate, the about 5-10mm of thickness, natural curing 3-4 hour demoulding, maintenance promptly gets the wallboard finished product after 7 days.
By detecting, the technical indicator of the wallboard that the present invention makes sees the following form:
Project Index
Moisture content % 10-15
Gas dried noodle density (kg/m 2) 70
90
Anti-folding rupture load N 90 2000
120 28000
Dried shrinkage value (mm/m)≤ 0.6
Anti-impact speed (30kg 0.5m drop) Impact plate face flawless 5 times
Hanging force/N 〉= 1000
Air weighted transmission loss/bB 90 types 35
120 types 40
Anti-this (durability)/% of folding rupture load reservation 〉= 70
Specific radioactivity /ka 0.5
/y 0.5
Fire endurance/n 2n
Combustibility Do not fire A

Claims (5)

1, double layer sandwich foamed concrete composite solid wall plate, it is a main material with quick hardening sulphoaluminate cement, flyash and river sand, in 100 parts of total amounts, quick hardening sulphoaluminate cement 30-60 part, flyash 20-30 part, river sand 20-40 part, other has the fiber with respect to main material 0.1-0.2 part, each 1-1.5 part of blowing agent hydrogen peroxide and stabilizing agent; Adopting above-mentioned raw materials to make both sides is cement plate, and the centre is the double layer sandwich structure of foamed concrete core.
2, composite solid wall plate according to claim 1, described raw material is prepared the acquisition wallboard in order to following method:
(1) quick hardening sulphoaluminate cement, flyash and river sand are pressed water/binder ratio 1: 0.3-0.6 and mixed, stir and make cement paste, put into mould, add the layer of glass grid cloth, make cement plate;
(2) treat the cement plate initial set after, the quick hardening sulphoaluminate cement, flyash, river sand and the fiber that prepare by metering mix by water/binder ratio 1: 0.3-0.6, stir, again by being metered into blowing agent and stabilizing agent, stir, water on the first floor cement plate after 1-2 minute, manufacture the foamed concrete core;
(3) cement paste to be watered foamed 25-30 minute, again the foaming concrete surface upper berth layer of glass grid cloth, the cement paste that will mix by quick hardening sulphoaluminate cement, flyash, river sand and the water that metering prepares is cast on the fiberglass gridding cloth again, carry out floating receipts light, make second layer cement plate, natural curing 3-4 hour demoulding, maintenance promptly get the wallboard finished product after 7 days.
3, composite solid wall plate according to claim 1 is characterized in that: stabilizing agent adopts rhenocure CA or polyvinyl alcohol.
4, composite solid wall plate according to claim 1 is characterized in that: the cement plate that step (1) and step (3) are made is that 5-10mm is thick.
5, composite solid wall plate according to claim 1, it is characterized in that: when adding blowing agent and stabilizing agent, also can add metallic soap, paraffin, gelatin or silicone oil simultaneously and make waterproof agent, sodium methyl silicate, sodium ethylsiliconate or poly-ethyl hydroxyl siloxanes are cooked activating agent, and addition is respectively the 1-2 part with respect to main material.
CNB2006100545723A 2006-11-02 2006-11-02 Double layer sandwich foamed concrete composite solid wall plate Expired - Fee Related CN100537966C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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CN1987008A true CN1987008A (en) 2007-06-27
CN100537966C CN100537966C (en) 2009-09-09

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CN106007588A (en) * 2016-05-17 2016-10-12 孟祥闻 Heat preservation integrated wallboard material and heat preservation wallboard manufacturing method
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