CN103193446B - Method for producing waste residue foam concrete and nanopore vacuum plate composite material - Google Patents

Method for producing waste residue foam concrete and nanopore vacuum plate composite material Download PDF

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CN103193446B
CN103193446B CN201310077954.8A CN201310077954A CN103193446B CN 103193446 B CN103193446 B CN 103193446B CN 201310077954 A CN201310077954 A CN 201310077954A CN 103193446 B CN103193446 B CN 103193446B
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China
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waste
solid waste
steel wire
wire net
net rack
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CN201310077954.8A
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CN103193446A (en
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倪文
吴辉
张玉燕
李德忠
王思静
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北京科技大学
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    • Y02P40/143
    • Y02W30/95

Abstract

The invention relates to a method for producing a waste residue foam concrete and nanopore vacuum plate composite material, and belongs to the fields of comprehensive utilization of resources and building materials. According to the invention, various industrial waste residues or sorted part of construction waste are used as the main raw material to produce a high-strength foam concrete and nanopore vacuum insulation plate composite material. Shock resistant sealing layer having self decorative function is formed by one-time pouring molding through placing a nanopore vacuum insulation plate in the foam concrete. The heat transfer capacity of the composite wall material is decreased by 100% than that of ordinary wall materials, so that the total thickness and the total weight of the wall are reduced by 30% or more. The invention solves a bottleneck problem that conventional wall materials of housing industry are inconvenient for installation. Because wall thickness and weight are reduced, the costs of steel structure and building foundation are reduced. The shock resistant strength of the wall material is greatly improved compared with wall materials of housing industrialization manufactured by conventional cement. The weather resistance is improved significantly.

Description

The manufacture method of a kind of waste residue foamed concrete and nano hole vacuum plate matrix material

Affiliated technical field

The invention belongs to comprehensive utilization of resources field and building materials field, particularly a kind of utilize various industrial residues and through the building waste of sorting manufacture foamed concrete and with the method for nano hole vacuum heat-insulating shield composite manufacturing composite wall body material.

Technical background

China's industrial development has fast caused storing up of a large amount of industrial solid castoffs.The data that provide according to large industrial solid wastes development of comprehensive utilization report of < < 2010-2011 year > >, within 2011, China's total generation of large industrial solid wastes is 34.6 hundred million tons, volume of comprehensive utilization is 15.8 hundred million tons, has a net increase of then and stores up 18.8 hundred million tons.In addition according to the prediction of the large Industrial Solid Waste comprehensive utilization of the < < of Ministry of Industry and Information " 12 " planning > >, to the storing up total amount and will reach 27,000,000,000 tons of the large Industrial Solid Waste of China in 2015, be equivalent to fully loaded heavy haul train and join end to end around the earth 50 circles.In addition, the Urbanization Construction of China also produces a large amount of building wastes every year.And China's capital construction consumes 16,000,000,000 tons of above natural mineral raws at present every year.Therefore, be badly in need of better a large amount of solid waste to be converted into the innovative technology of material of construction.

In the prior art, foamed concrete is mainly used to make building block, be used for fill frame structure build the load-bearing of self-heat conserving by laying bricks or stones or non-bearing wall body or cast-in-site for the insulation of external wall.The preparation method > > of a patent CN102501299A < < foam concrete thermal insulation blocks discloses a kind of preparation method of foam concrete thermal insulation blocks, its preparation technology is: with foaming machine, whipping agent is fully foamed by mechanical system, and evenly mix with grout, then through pumping system, foamed concrete is transported to mould and carries out bulk and build; Bulk foamed concrete is cut into the fritter foamed concrete that meets dimensional requirement; The foamed concrete piece of this being placed to moulding at finished product mould inside, penetration concrete in mould, removes finishing die tool after compression-vibration shaping, obtain shaping building block; After being placed to for some time, above-mentioned shaping building block obtains finished product.Also the outer material of exterior wall that had occurred in recent years the building that foamed concrete and panel are compound.A patent CN102491699A < < composite decoration foam concrete building block and preparation method thereof > > provides a kind of composite decoration foam concrete building block and preparation method thereof, comprise foam concrete block body, at least one sidewall of described foam concrete block body is compounded with decoration panel; On described decoration panel, establishing syndeton is complex as a whole decoration panel and foam concrete block.Described decoration panel is decoration ceramic tile, marble or artificial marble; Described syndeton is wedge shaped projection or raised line.Decoration panel and foam concrete block are complex as a whole, without carrying out again decoration of exterior wall after puzzling at Jiang Qiang, use convenient, and good decorating effect.Also there are some new technology to occur utilizing solid waste to produce aspect foamed concrete.Patent CN102815964A < < building waste recycling technique > > discloses a kind of building waste recycling technique, comprises the following steps: one, waste concrete, waste mortar and deposed brick slag are collected; Two, Crushing and screening: collected waste concrete, waste mortar and deposed brick slag are carried out to Crushing and screening, obtain regenerated coarse aggregate and recycled fine aggregate; Three, foamed concrete preparation: cement slurry preparation: cement, water and regenerated coarse aggregate and recycled fine aggregate are carried out obtaining cement slurry after uniform stirring; Foam diluent adds: by the foam diluent being uniformly mixed to form by whipping agent and water, be added in cement slurry and stir and make foamed concrete.Patent CN102040362A < < utilizes foamed concrete material, concrete and the preparation method > > of waste cement mortar to relate to a kind of waste cement mortar that utilizes and makes foamed concrete material, concrete and preparation method, and described foamed concrete material comprises: waste cement mortar, cement, ureaformal dehyde resin glue, gypsum, white lime, foaming agent foam.Patent CN101182175 < < coal gangue-fly ash foam concrete > > relates to light foam concrete.This invention is comprised of coal gangue, flyash, cement, lime, gypsum, filler and whipping agent.

But foamed concrete prepared in currently available technology is main gelling material mainly with high grade ordinary Portland cement greatly, and not only cost is higher, also has the problems such as intensity/volume density ratio is low.Owing to producing ordinary Portland cement, need discharge a large amount of CO in addition 2and other pollutents, use in a large number ordinary Portland cement must cause the greenness of foamed concrete material to be had a greatly reduced quality.

Aspect the production technology of vacuum heat insulation materials, prior art is used traditional lagging material as supporting core mostly, but because vacuum heat insulation materials production cost is higher, vacuum seal layer subjects to destroy in the construction process of building site, therefore vacuum heat insulation materials is only strong for volume restrictions and high to heat-insulating property requirement, and consumption is less and the unit volume of the finished product is worth higher occasion, as the cold insulation of natural gas liquefaction storage tank, the cold insulation of large-scale refrigerating apparatus and domestic refrigerator etc.

Aspect the materials for wall manufacturing technology of housing industrialization, mainly adopt rock wool, mineral wool, glass wool and organic foam class material as the main raw material(s) of Light Wall.Manufacturing process is: or it is compound to manufacture full light material and full weight matter Side fascia and lining; or adopt full light material to manufacture body of wall work in-process; then external protection in construction at the scene, the problem such as but ubiquity exterior wall impact resistance is poor, and construction convenience is inadequate or cost is high, carbon footprint is large.

Summary of the invention

The technical problem to be solved in the present invention is that housing industrialization the light wall material shock resistance and the anti-weather ability to function that face are undesirable, thickness and weight are bigger than normal, cause transportation and construction convenient not, the bottleneck problem that solid waste utilization ratio is not high, and further significantly reduce the heat transfer coefficient of body of wall and reduce carbon footprint, break through the key restriction difficult problem that housing industrialization exists aspect materials for wall.

A manufacture method for waste residue foamed concrete and nano hole vacuum plate matrix material, specific embodiments is as follows:

(1) the solid waste A with pozzolanic reaction activity is levigate to specific surface area 400m 2/ kg-2000m 2/ kg, described solid waste A comprises blast furnace slag and batching, batching refers to slag, flyash, the brick and tile that give up of take are one or more the mixture in main building waste, light-burned Kaolin Tailings or light-burned bauxite gangue.Blast furnace slag accounts for the 1-95% of solid waste A, and batching accounts for the 5-99% of solid waste.

(2) pulverized powder of above-mentioned solid waste A is pressed to mass percent 85%-98%, and mix with the admixture of 2%-15%, obtain gelling material A.Described admixture is one or more the combination in following material, and these materials comprise coal-fired flue gas desulfurization gypsum, the plaster of paris, natural anhydrite, water glass (calculating with butt), industrial caustic soda, calcined soda for industry, industrial sodium bicarbonate, industrial sulphuric acid sodium, cement clinker, commercial lime etc.Above-mentioned admixture, except liquid glass, is wanted levigate to specific surface area 200m before use 2/ kg-1000m 2/ kg.Liquid glass can directly add before foamed concrete is got blisters.

(3) step (2) gained gelling material A being pressed to mass percent 20%-70% mixes with the solid waste B fine particle of 30%-80% again; and the water of 15%-30% of gelling material A and solid waste B fine particle total amount sum is, the water reducer of the fortifying fibre of 1%-3%, 0.1%-0.3%; mix, obtain mixing mud B.The fine grain middle solid waste B of described solid waste B is the slag of various grit mine tailings, metallurgical slag, coal-fired furnace or one or more in waste and old concrete.The fine grain size range of described solid waste B is at 10um-300um, and fine grain Mohs' hardness 3-8, containing the hazardous and noxious substances exceeding standard.Described fortifying fibre is one or more in alkali resistant glass fibre, basalt fibre, silica fiber or organic fibre.Described water is tap water, or the water in three grades of above natural terrain water bodys, or is equivalent to the underground water of tap water quality, or sewage reaches the middle water of three grades of surface water qualities after advanced treatment.

(4) commercially available cement concrete whipping agent is mixed with water by concentration 3%-30%, and account for the commercially available suds-stabilizing agent of whipping agent butt quality 0%-50%, in whisking machine, get blisters.By foam mud wet bulk density, be 700kg/m 3-2200kg/m 3, the foam of accomplishing fluently is mixed with mixing mud B.

(5) mould is prepared: the sheet plastic that is carved with floral designs or plane is laid in to mold bottom, on plastic plate and mould side portion be evenly coated with one deck releasing agent.To be fixed in advance grinding tool for the fixing steel wire net rack of nano hole vacuum heat-insulating shield, and fixed plastics sleeve pipe is composition board prepared screw-bolt hole, and the position fixing metal built-in fitting designing.

(6) by ready wet bulk density 1000kg/m 3-2200kg/m 3high-density foam mud first at mold bottom cast 2cm-4cm, its height is remained basically stable with steel wire net rack plane.Then the thick nano hole vacuum heat-insulating shield of 0.5cm-1.5cm is laid on steel wire net rack, the second layer steel wire net rack being connected and fixed with the first layer steel wire net rack of then tiling thereon, is fixed between two-layer steel wire net rack nano hole vacuum heat-insulating shield.After second layer steel wire net rack fixedly completes, then to pour into a mould wet bulk density be 700kg/m 3-1000kg/m 3low volume density foam mud, building thickness is 6cm-20cm.

(7) send watering after the mould of filling with strikes off into curing room, curing temperature is 50 oc-99 oc, relative humidity is 90%-100%, curing time is 6 hours-20 hours.

(8) the maintenance stage is carried out the demoulding and finishing after completing.Then put into that outside surface that warehouse seasoning can directly be on active service after 10 days to 28 days sprays in the open or other are decorated and process.Also can not make outer decoration directly in architectural use.

Beneficial effect of the present invention

(1) the present invention adopts various industrial residues or is that main raw material is manufactured high strength foam concrete through the part building waste of sorting, gelling material is not used cement substantially, a large amount of solid waste of not only can dissolving, can also reduce discharging a large amount of CO owing to reducing the use of cement 2and other pollutents, reduce the fuel consumption causing due to calcination of cement clinker, solve the excessive problem of the ubiquitous carbon footprint of materials for wall of traditional housing industrialization.(2) adopt nano hole vacuum heat-insulating shield to be placed in the middle primary concreting moulding of foam coagulation, carry the shock resistance sealing ply with decoration functions.Owing to having used the thin layer nano-porous super thermal insulation material vacuumizing as main insulating unit, the comparable common strong body of wall heat transfer ability declines more than 100%, and can make the total thickness of body of wall and gross weight all reduce more than 30%, the materials for wall that solves current housing industrialization is installed inconvenient bottleneck problem, and drives owing to having reduced thickness of wall body and weight the cost that reduces steel construction and building foundation.(3) the solid waste gelling material of special preparation, materials for wall resistance to impact shock than the housing industrialization of traditional cement manufacture increases substantially, weathering resistance increases substantially, and has solved the bottleneck problem of the ubiquitous impact resistance of current housing industrialization materials for wall and weather-proof scarce capacity.

Embodiment

embodiment 1,

(1) blast furnace slag is levigate to specific surface area 630m 2/ kg, bessemer furnace slag is levigate to specific surface area 510m 2/ kg.

(2) above-mentioned blast furnace slag pulverized powder is pressed to mass percent 74%, levigating steel slag powder 15% mixes with 10% power plant desulfurization gypsum and 1% cement clinker, obtains gelling material A.Wherein power plant desulfurization gypsum is levigate to specific surface area 560m before use 2/ kg, cement clinker is levigate to specific surface area 360m 2/ kg.

(3) step (2) gained gelling material A being pressed to mass percent 40% mixes with 60% solid waste fine particle; and account for the water of gelling material A and fine particle sum total amount 15%; the additional gelling material A that accounts for mixes with the PC water reducer of fine particle sum total amount 0.2% with fortifying fibre and the additional gelling material A of fine particle sum total amount 3%, obtains mixing mud B.Described solid waste fine particle is through in small, broken bits and waste and old concrete classification, and size range is at 10um-300um, and the Mohs' hardness 3-7 of particle, containing the hazardous and noxious substances exceeding standard.Described fortifying fibre is basalt fibre.Described water is tap water.

(4) commercially available cement concrete whipping agent is mixed with water by concentration 8%, and account for the suds-stabilizing agent of whipping agent butt quality 20%, in whisking machine, get blisters.The foam of accomplishing fluently is mixed with mixing mud B, and according to the number that adds foam, obtaining respectively wet bulk density is 1000kg/m 3and 2200kg/m 3foam mud.

(5) mould is prepared: the sheet plastic that is carved with floral designs is laid in to mold bottom, on plastic plate and mould side portion be evenly coated with one deck releasing agent.To be fixed in advance grinding tool for the fixing steel wire net rack of nano hole vacuum heat-insulating shield, and fixed plastics sleeve pipe is composition board prepared screw-bolt hole, and the position fixing metal built-in fitting designing.

(6) by ready wet bulk density 2200kg/m 3high-density foam mud first at mold bottom cast 2cm, its height is remained basically stable with steel wire net rack plane.Then the thick nano hole vacuum heat-insulating shield of 1.5cm is laid on steel wire net rack, the second layer steel wire net rack being connected and fixed with the first layer of then tiling thereon, is fixed between two-layer steel wire net rack nano hole vacuum heat-insulating shield.After second layer steel wire net rack fixedly completes, then to pour into a mould wet bulk density be 1000kg/m 3low volume density foam mud, building thickness is 12.5cm.

(7) send watering after the mould of filling with strikes off into curing room, curing temperature is 95 oc, relative humidity is 95%, curing time is 8 hours.

(8) the maintenance stage is carried out the demoulding and finishing after completing.Then put into the outside surface that warehouse seasoning 10 days to 28 days is directly on active service afterwards in the open and carry out spraying and decorating processing, obtain having the high impact-resistant waste residue foamed concrete and the nano hole vacuum heat-insulating shield matrix material that carry decoration functions, its performance is in Table 1.This material, for reserved anchoring metalwork, bolt hole, can conveniently transport, housing industrialization component sheet material that can quick-assembling construction.

table 1. embodiment 1 waste residue foamed concrete and nano hole vacuum heat-insulating shield composite property

performance perameter detected result ultimate compression strength (high-density layer)/MPa 22.3 bending strength (high-density layer)/MPa 20.0 tensile strength (high-density layer)/MPa 7.8 resistance to impact shock (high-density layer)/J/m 2 6.4, falling ball method test is impacted 5 times, and plate face is without through check. freeze-thaw resistance (high-density layer) through 25 freeze thawing, flawless, layering, bubbling coefficient of permeability (high-density layer)/% 0.006 wet rate (the on average)/% that rises 0.11 heat transfer coefficient (W/ ㎡ K) 0.11 thickness cm 16 volume density (on average)/cm 3/ g 1.3 uninflammability a level

embodiment 2,

(1) blast furnace slag is levigate to specific surface area 630m 2/ kg, useless brick and tile are that master's building waste is levigate to specific surface area 710m 2/ kg.

(2) above-mentioned blast furnace slag pulverized powder is pressed to mass percent 34%, to be main building waste pulverized powder 56% mix with 8% and the modulus solid water glass that is 1 and 2% power plant desulfurization gypsum useless brick and tile, obtains gelling material A.Wherein power plant desulfurization gypsum is levigate to specific surface area 560m before use 2/ kg, solid water glass is levigate to specific surface area 290m 2/ kg.

(3) step (2) gained gelling material A being pressed to butt mass percent 40% mixes with 60% solid waste fine particle; and account for the water of gelling material A and fine particle sum total amount 18%; the additional gelling material A that accounts for mixes with the PC water reducer of fine particle sum total amount 0.2% with fortifying fibre and the additional gelling material A that accounts for of fine particle sum total amount 1.5%, obtains mixing mud B.Described solid waste fine particle is through in small, broken bits and waste and old concrete classification, and size range is at 10um-300um, and the Mohs' hardness 3-7 of particle, containing the hazardous and noxious substances exceeding standard.Described fortifying fibre is polyvinyl alcohol fiber.Described water is tap water.

(4) commercially available cement concrete whipping agent is mixed with water by concentration 10%, and account for the suds-stabilizing agent of whipping agent butt quality 30%, in whisking machine, get blisters.The foam of accomplishing fluently is mixed with mixing mud B, and according to the number that adds foam, obtaining respectively wet bulk density is 900kg/m 3and 2100kg/m 3foam mud.

(5) mould is prepared: the sheet plastic that is carved with floral designs is laid in to mold bottom, on plastic plate and mould side portion be evenly coated with one deck releasing agent.To be fixed in advance grinding tool for the fixing steel wire net rack of nano hole vacuum heat-insulating shield, and fixed plastics sleeve pipe is composition board prepared screw-bolt hole, and the position fixing metal built-in fitting designing.

(6) by ready wet bulk density 2100kg/m 3high-density foam mud first at mold bottom cast 3cm, its height is remained basically stable with steel wire net rack plane.Then the thick nano hole vacuum heat-insulating shield of 1.5cm is laid on steel wire net rack, the second layer steel wire net rack being connected and fixed with the first layer of then tiling thereon, is fixed between two-layer steel wire net rack nano hole vacuum heat-insulating shield.After second layer steel wire net rack fixedly completes, then to pour into a mould wet bulk density be 900kg/m 3low volume density foam mud, building thickness is 13.5cm.

(7) send watering after the mould of filling with strikes off into curing room, curing temperature is 95 oc, relative humidity is 90%, curing time is 8 hours.

(8) the maintenance stage is carried out the demoulding and finishing after completing.Then put into the outside surface that warehouse seasoning 10 days to 28 days is directly on active service afterwards in the open and carry out spraying and decorating processing, obtain having the high impact-resistant waste residue foamed concrete and the nano hole vacuum heat-insulating shield matrix material that carry decoration functions.This material, for reserved anchoring metalwork, bolt hole, can conveniently transport, housing industrialization component sheet material that can quick-assembling construction.

table 2. embodiment 2 waste residue foamed concrete and nano hole vacuum heat-insulating shield composite property

performance perameter detected result ultimate compression strength (high-density layer)/MPa 18.3 bending strength (high-density layer)/MPa 20.0 tensile strength (high-density layer)/MPa 7.8 resistance to impact shock (high-density layer)/J/m 2 5.4, falling ball method test is impacted 4 times, and plate face is without through check. freeze-thaw resistance (high-density layer) through 25 freeze thawing, flawless, layering, bubbling coefficient of permeability (high-density layer)/% 0.009 wet rate (the on average)/% that rises 0.10 heat transfer coefficient (W/ ㎡ K) 0.10 thickness cm 18 volume density (on average)/cm 3/ g 1.2 uninflammability a level

embodiment 3,

(1) blast furnace slag is levigate to specific surface area 520m 2/ kg, useless brick and tile are that master's building waste is levigate to specific surface area 820m 2/ kg.

(2) above-mentioned blast furnace slag pulverized powder is pressed to mass percent 41%, to be main building waste pulverized powder 49% mix with 7% and the modulus solid water glass that is 1 and 3% industrial sulphuric acid sodium useless brick and tile, obtains gelling material A., wherein industrial sulphuric acid sodium is used original-pack particle, and solid water glass is levigate to specific surface area 360m before use 2/ kg.

(3) step (2) gained gelling material A being pressed to butt mass percent 50% mixes with 50% solid waste fine particle; and account for the water of gelling material A and fine particle sum total amount 17%; the additional gelling material A that accounts for mixes with the PC water reducer of fine particle sum total amount 0.2% with fortifying fibre and the additional gelling material A that accounts for of fine particle sum total amount 1.0%, obtains mixing mud B.Described solid waste fine particle is through in small, broken bits and waste and old concrete classification, and size range is at 10um-300um, and the Mohs' hardness 3-7 of particle, containing the hazardous and noxious substances exceeding standard.Described fortifying fibre is aramid fiber.Described water is tap water.

(4) commercially available cement concrete whipping agent is mixed with water by concentration 15%, and account for the suds-stabilizing agent of whipping agent butt quality 35%, in whisking machine, get blisters.The foam of accomplishing fluently is mixed with mixing mud B, and according to the number that adds foam, obtaining respectively wet bulk density is 900kg/m 3and 1800kg/m 3foam mud.

(5) mould is prepared: the sheet plastic that is carved with floral designs is laid in to mold bottom, on plastic plate and mould side portion be evenly coated with one deck releasing agent.To be fixed in advance grinding tool for the fixing steel wire net rack of nano hole vacuum heat-insulating shield, and fixed plastics sleeve pipe is composition board prepared screw-bolt hole, and the position fixing metal built-in fitting designing.

(6) by ready wet bulk density 1800kg/m 3high-density foam mud first at mold bottom cast 4cm, its height is remained basically stable with steel wire net rack plane.Then the thick nano hole vacuum heat-insulating shield of 1cm is laid on steel wire net rack, the second layer steel wire net rack being connected and fixed with the first layer of then tiling thereon, is fixed between two-layer steel wire net rack nano hole vacuum heat-insulating shield.After second layer steel wire net rack fixedly completes, then to pour into a mould wet bulk density be 900kg/m 3low volume density foam mud, building thickness is 15cm.

(7) send watering after the mould of filling with strikes off into curing room, curing temperature is 97 oc, relative humidity is 90%, curing time is 10 hours.

(8) the maintenance stage is carried out the demoulding and finishing after completing.Then put into the outside surface that warehouse seasoning 10 days to 28 days is directly on active service afterwards in the open and carry out spraying and decorating processing, obtain having the high impact-resistant waste residue foamed concrete and the nano hole vacuum heat-insulating shield matrix material that carry decoration functions.This material, for reserved anchoring metalwork, bolt hole, can conveniently transport, housing industrialization component sheet material that can quick-assembling construction.

table 3. embodiment 3 waste residue foamed concrete and nano hole vacuum plate composite property

performance perameter detected result ultimate compression strength (high-density layer)/MPa 20.8 bending strength (high-density layer)/MPa 23.0 tensile strength (high-density layer)/MPa 9.8 resistance to impact shock (high-density layer)/J/m 2 7.4, falling ball method test is impacted 6 times, and plate face is without through check. freeze-thaw resistance (high-density layer) through 25 freeze thawing, flawless, layering, bubbling coefficient of permeability (high-density layer)/% 0.008 wet rate (the on average)/% that rises 0.10 heat transfer coefficient (W/ ㎡ K) 0.12 thickness cm 20 volume density (on average)/cm 3/ g 1.0 uninflammability a level

embodiment 4,

(1) blast furnace slag is levigate to specific surface area 720m 2/ kg, light-burned Kaolin Tailings is levigate to specific surface area 940m 2/ kg.

(2) above-mentioned blast furnace slag pulverized powder is pressed to mass percent 21%, light-burned Kaolin Tailings pulverized powder 69% mixes with 9% and the modulus solid water glass that is 1 and 1% industrial sulphuric acid sodium, obtains gelling material A., wherein industrial sulphuric acid sodium is used original-pack particle, and solid water glass is levigate to specific surface area 380m before use 2/ kg.

(3) step (2) gained gelling material A being pressed to butt mass percent 30% mixes with 70% solid waste fine particle; and account for the water of gelling material A and fine particle sum total amount 14%; the additional gelling material A that accounts for mixes with the PC water reducer of fine particle sum total amount 0.1% with fortifying fibre and the additional gelling material A that accounts for of fine particle sum total amount 1%, obtains mixing mud B.Described solid waste fine particle is classified metal tailings, and size range is at 10um-300um, and the Mohs' hardness 3-7 of particle, containing the hazardous and noxious substances exceeding standard.Described fortifying fibre is aramid fiber.Described water is tap water.

(4) commercially available cement concrete whipping agent is mixed with water by concentration 15%, and account for the suds-stabilizing agent of whipping agent butt quality 30%, in whisking machine, get blisters.The foam of accomplishing fluently is mixed with mixing mud B, and according to the number that adds foam, obtaining respectively wet bulk density is 700kg/m 3and 2200kg/m 3foam mud.

(5) mould is prepared: the sheet plastic that is carved with floral designs is laid in to mold bottom, on plastic plate and mould side portion be evenly coated with one deck releasing agent.To be fixed in advance grinding tool for the fixing steel wire net rack of nano hole vacuum heat-insulating shield, and be composition board prepared screw-bolt hole with plastic casing, and the position fixing metal built-in fitting designing.

(6) by ready wet bulk density 2200kg/m 3high-density foam mud first at mold bottom cast 3cm, its height is remained basically stable with steel wire net rack plane.Then the thick nano hole vacuum heat-insulating shield of 0.5cm is laid on steel wire net rack, the second layer steel wire net rack being connected and fixed with the first layer of then tiling thereon, is fixed between two-layer steel wire net rack nano hole vacuum heat-insulating shield.After second layer steel wire net rack fixedly completes, then to pour into a mould wet bulk density be 700kg/m 3low volume density foam mud, building thickness is 18.5cm.

(7) send watering after the mould of filling with strikes off into curing room, curing temperature is 97 oc, relative humidity is 90%, curing time is 10 hours.

(8) the maintenance stage is carried out the demoulding and finishing after completing.Then put into the outside surface that warehouse seasoning 10 days to 28 days is directly on active service afterwards in the open and carry out spraying and decorating processing, obtain having the high impact-resistant waste residue foamed concrete and the nano hole vacuum heat-insulating shield matrix material that carry decoration functions.This material, for reserved anchoring metalwork, bolt hole, can conveniently transport, housing industrialization component sheet material that can quick-assembling construction.

table 4. embodiment 4 waste residue foamed concrete and nano hole vacuum plate composite property

performance perameter detected result ultimate compression strength (high-density layer)/MPa 34.8 bending strength (high-density layer)/MPa 22.0 tensile strength (high-density layer)/MPa 8.8 resistance to impact shock (high-density layer)/J/m 2 7.2, falling ball method test is impacted 6 times, and plate face is without through check. freeze-thaw resistance (high-density layer) through 25 freeze thawing, flawless, layering, bubbling coefficient of permeability (high-density layer)/% 0.008 wet rate (the on average)/% that rises 0.10 heat transfer coefficient (W/ ㎡ K) 0.19 thickness cm 22 volume density (on average)/cm 3/ g 0.7 uninflammability a level

Claims (4)

1. a manufacture method for waste residue foamed concrete and nano hole vacuum plate matrix material, is characterized in that, specific embodiments is as follows:
(1) the solid waste A with pozzolanic reaction activity is levigate to specific surface area 400m 2/ kg-2000m 2/ kg;
(2) one or more mixture of the pulverized powder of above-mentioned solid waste A is pressed to mass percent 85%-98%, and mix with the admixture of 2%-15%, obtain gelling material A; Above-mentioned admixture, except liquid glass, is wanted levigate to specific surface area 200m before use 2/ kg-1000m 2/ kg; Liquid glass directly adds before foamed concrete is got blisters;
(3) step (2) gained gelling material A being pressed to mass percent 20%-70% mixes with the solid waste B fine particle of 30%-80% again, and the water of 15%-30% of gelling material A and solid waste B fine particle total amount sum is, the water reducer of the fortifying fibre of 1%-3%, 0.1%-0.3%, mix, obtain mixing mud B;
(4) commercially available cement concrete whipping agent is mixed with water by concentration 3%-30%, and account for the commercially available suds-stabilizing agent of whipping agent butt quality 0%-50%, in whisking machine, get blisters; By foam mud wet bulk density, be 700kg/m 3-2200kg/m 3, the foam of accomplishing fluently is mixed with mixing mud B;
(5) mould is prepared: the sheet plastic that is carved with floral designs or plane is laid in to mold bottom, on plastic plate and mould side portion be evenly coated with one deck releasing agent; To be fixed in advance mould for the fixing steel wire net rack of nano hole vacuum heat-insulating shield, and fixed plastics sleeve pipe is composition board prepared screw-bolt hole, and the position fixing metal built-in fitting designing;
(6) by ready wet bulk density 1000kg/m 3-2200kg/m 3high-density foam mud first at mold bottom cast 2cm-4cm, high-density foam mud height and steel wire net rack plane are maintained an equal level, then the thick nano hole vacuum heat-insulating shield of 0.5cm-1.5cm is laid on steel wire net rack, then tile on nano hole vacuum heat-insulating shield second layer steel wire net rack being connected and fixed with the first layer steel wire net rack, is fixed between two-layer steel wire net rack nano hole vacuum heat-insulating shield; After second layer steel wire net rack fixedly completes, then to pour into a mould wet bulk density be 700kg/m 3-1000kg/m 3low volume density foam mud, building thickness is 6cm-20cm;
(7) send watering after the mould of filling with strikes off into curing room, curing temperature is that 50 ℃-99 ℃, relative humidity are 90%-100%, and curing time is 6 hours-20 hours;
(8) the maintenance stage is carried out the demoulding and finishing after completing, and then puts into that outside surface that warehouse seasoning is directly on active service for 10 days to 28 days afterwards sprays in the open or other are decorated and process, or does not make outer decoration directly in architectural use;
The described solid waste A with pozzolanic activity comprises blast furnace slag and batching, batching refers to slag, flyash, the brick and tile that give up of take are one or more the mixture in main building waste, light-burned Kaolin Tailings or light-burned bauxite gangue, blast furnace slag accounts for the 1-95% of solid waste A, and batching accounts for the 5-99% of solid waste;
The fine grain middle solid waste of described solid waste B is the slag of various grit mine tailings, metallurgical slag, coal-fired furnace, or one or more in waste and old concrete.
2. the manufacture method of a kind of waste residue foamed concrete and nano hole vacuum plate matrix material as claimed in claim 1, it is characterized in that one or more in water glass, industrial caustic soda, calcined soda for industry, industrial sodium bicarbonate, industrial sulphuric acid sodium, cement clinker or commercial lime that described admixture is coal-fired flue gas desulfurization gypsum, the plaster of paris, natural anhydrite, calculate with butt.
3. the manufacture method of a kind of waste residue foamed concrete and nano hole vacuum plate matrix material as claimed in claim 1, it is characterized in that, the fine grain size range of described solid waste B is at 10 μ m-300 μ m, and fine grain Mohs' hardness 3-8, containing the hazardous and noxious substances exceeding standard.
4. the manufacture method of a kind of waste residue foamed concrete and nano hole vacuum plate matrix material as claimed in claim 1, is characterized in that, described fortifying fibre is alkali resistant glass fibre, basalt fibre, silica fiber, or one or more in organic fibre.
CN201310077954.8A 2013-03-12 2013-03-12 Method for producing waste residue foam concrete and nanopore vacuum plate composite material CN103193446B (en)

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CN103771797B (en) * 2013-12-31 2015-09-30 首钢总公司 Two the mixing of slag prepares foam concrete block and preparation method thereof
CN103951358B (en) * 2014-04-21 2016-01-20 清远绿由环保科技有限公司 One building castoff manufactures overall house foamed light body of wall and manufacture method
CN104441231B (en) * 2014-10-23 2016-08-31 上海宝田新型建材有限公司 A kind of preparation method of fibers reinforced desulfurization gypsum hollow panel
CN104671644A (en) * 2015-01-27 2015-06-03 新疆光耀玻璃科技有限公司 Sealing slurry of tin tank for floating glass production line, and preparation method
CN105089201A (en) * 2015-07-06 2015-11-25 中国建筑股份有限公司 Fibre concrete composite vacuum insulation wall panel and production method thereof
CN106587907A (en) * 2016-12-22 2017-04-26 天津尔东科技有限公司 Energy-saving and environment-protection decoration plate used for building decoration engineering, and production method thereof
CN107572998B (en) * 2017-10-26 2020-01-07 河南科技大学 Low-cost high-strength porous sound absorption material and manufacturing process thereof
CN107857527A (en) * 2017-11-02 2018-03-30 叠彩区千牛起重设备经营部 A kind of anti-seismic concrete material

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