WO1997043498A1 - Insulation element, method for preparing same, and use of the insulation element - Google Patents
Insulation element, method for preparing same, and use of the insulation element Download PDFInfo
- Publication number
- WO1997043498A1 WO1997043498A1 PCT/NO1997/000124 NO9700124W WO9743498A1 WO 1997043498 A1 WO1997043498 A1 WO 1997043498A1 NO 9700124 W NO9700124 W NO 9700124W WO 9743498 A1 WO9743498 A1 WO 9743498A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- waste
- accordance
- water
- mass
- finely divided
- Prior art date
Links
- 238000009413 insulation Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000002699 waste material Substances 0.000 claims abstract description 81
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 22
- 230000008569 process Effects 0.000 claims abstract description 21
- 239000011230 binding agent Substances 0.000 claims abstract description 8
- 238000010276 construction Methods 0.000 claims abstract description 5
- 230000001846 repelling effect Effects 0.000 claims abstract description 5
- 239000012774 insulation material Substances 0.000 claims abstract description 4
- 239000010791 domestic waste Substances 0.000 claims abstract 3
- 229920006329 Styropor Polymers 0.000 claims abstract 2
- 238000001035 drying Methods 0.000 claims description 18
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 8
- 235000019353 potassium silicate Nutrition 0.000 claims description 7
- 239000002023 wood Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 150000002739 metals Chemical class 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 238000005266 casting Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 2
- 239000000378 calcium silicate Substances 0.000 claims description 2
- 229910052918 calcium silicate Inorganic materials 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- 238000004512 die casting Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000004794 expanded polystyrene Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 19
- 230000000694 effects Effects 0.000 description 11
- 241000894006 Bacteria Species 0.000 description 9
- 244000005700 microbiome Species 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 239000010794 food waste Substances 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 244000063299 Bacillus subtilis Species 0.000 description 4
- 241000233866 Fungi Species 0.000 description 4
- 230000001419 dependent effect Effects 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 230000000813 microbial effect Effects 0.000 description 4
- 239000000123 paper Substances 0.000 description 4
- 238000012216 screening Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 241000193468 Clostridium perfringens Species 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002147 killing effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 230000001954 sterilising effect Effects 0.000 description 3
- 241000193830 Bacillus <bacterium> Species 0.000 description 2
- 241000193403 Clostridium Species 0.000 description 2
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- OFBQJSOFQDEBGM-UHFFFAOYSA-N Pentane Chemical compound CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 2
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 150000003445 sucroses Chemical class 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- SUBDBMMJDZJVOS-UHFFFAOYSA-N 5-methoxy-2-{[(4-methoxy-3,5-dimethylpyridin-2-yl)methyl]sulfinyl}-1H-benzimidazole Chemical compound N=1C2=CC(OC)=CC=C2NC=1S(=O)CC1=NC=C(C)C(OC)=C1C SUBDBMMJDZJVOS-UHFFFAOYSA-N 0.000 description 1
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 241000228212 Aspergillus Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000863012 Caulobacter Species 0.000 description 1
- 241000905957 Channa melasoma Species 0.000 description 1
- 241000192093 Deinococcus Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 241000193385 Geobacillus stearothermophilus Species 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 244000061176 Nicotiana tabacum Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 241000191940 Staphylococcus Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 241000031022 Xeromyces Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000010921 garden waste Substances 0.000 description 1
- 239000010922 glass waste Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000000415 inactivating effect Effects 0.000 description 1
- 230000036512 infertility Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 239000010814 metallic waste Substances 0.000 description 1
- 239000011490 mineral wool Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000010893 paper waste Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000008363 phosphate buffer Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 230000035943 smell Effects 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000011270 tar paper Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002916 wood waste Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/50—Destroying solid waste or transforming solid waste into something useful or harmless involving radiation, e.g. electro-magnetic waves
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/006—Foundations for pavings made of prefabricated single units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/21—Agglomeration, binding or encapsulation of solid waste using organic binders or matrix
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/25—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
- B09B3/25—Agglomeration, binding or encapsulation of solid waste using mineral binders or matrix
- B09B3/27—Binding by sodium silicate, e.g. cement or water glass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
- B09B3/35—Shredding, crushing or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
Definitions
- Insulation element method for preparing same, and use of the insulation element
- the present invention relates to a process for the treatment of consumption waste such as is indicated in the introduction to the following claim 1.
- the invention also relates to a plate- or block- shaped insulation product as is evident from the introduc ⁇ tion to claim 9, together with a utilisation of the pro- duct as according to claim 11.
- the problem is m addition amplified by percolating water as a consequence of the waste being irrigated with rainwater.
- the present invention has especially to do with that residual waste which remains after the source screening is undertaken.
- residual waste will also contain smaller amounts of the afore-mentioned materials, that is to say glass, metal, wood and food waste.
- Plastic such as PVC, poly ⁇ ethylene, polystyrene and polyurethane.
- Minor amounts of rubber Minor amounts of garden waste such as grass and leaves .
- a proportion, and especially the food residues, in such a mass of waste will be able to form conditions for the growth of microorganisms.
- Such organisms can live at -12°C (psychrophilic) , at 110°C (thermophilic) , in distilled water (Caulobacter) , in brine (halophilic) and individual organisms like Deinococcus survive powerful electromagnetic radiation. All organisms are however dependent on free water in order to grow.
- a series of conservation and sterilisation techniques have been developed.
- One of these methods is autoclaving and drying. There are two known and environmentally friendly techniques which, when they fulfill certain minimum demands, will keep the product sterile over longer periods. It is desirable by the invention to produce the safest process with the idea of killing (sterilising) microorganisms in the waste.
- decimal reduction time (D) The reduction in the number of organisms by sterilisa ⁇ tion is measured in decimal reduction time (D) .
- Decimal reduction time (D) is defined by the expression
- D T/log (N 0 /N ⁇ ) where D is the inactivating rate (the time it takes to reduce the number of cells by 90% at a given temperature, T is the time, N 0 is the number of cells before heating and N ⁇ is the number of cells after heating. That is to say that D is dependent upon the temperature and the number of cells before autoclaving.
- the decimal reduction time is consequently an expression of the time it takes to reduce the number of organisms of a type having a ten power.
- the decimal reduc ⁇ tion time is dependent upon the organism, medium and tem ⁇ perature as will be clearly evident from the following Table 1.
- Organism D value in minutes
- Organism Minimum a w value
- S Staphylococcus
- b mushroom (fungus)
- A Aspergillus
- Drying or lowering the water activity is another much used technique for conserving food and wood materials.
- the water activity is defined like this: The moisture in a substance can be stated as the water activity.
- the water activity ⁇ a w is given as: where p is the vapour pressure for water for the medium and p 0 is the vapour pressure for pure water at the same temperature. Drying will not kill microorganisms, but prevents them from growing. Relatively few microorganisms can live in dry environments (a w ⁇ 0.85) and microorganisms are not reported which can live at lower water activit i es than 0.61. In dry environments filamentous organisms, like fungus, have a greater advantage than single cell orga ⁇ n i sms, in that they can grow between microbes microniches having a higher water content.
- waste can be hermetised and inaccessible to microbial decomposition. Casting the waste in PVC, PE and PS - plastic will form a barrier against the ingress of water, plus the waste will be little exposed to exter ⁇ nal microbial decomposition.
- the waste material is in ⁇ corporated in a plate material with insulation properties adapted for building and/or plant purposes.
- a plate material with insulation properties adapted for building and/or plant purposes.
- Such an insula ⁇ tion block is especially suited for utilisation during the construction of roads.
- the invention consequently involves bringing the consumption waste through an industrial process with the subsequent compression to a finished block- or plate- shaped insulation product. There is thus produced a completely competitive insulation plate. Furthermore a residual waste of the afore-mentioned kind can include residues of such an insulation plate, for example 25 years after it has been manufactured the first time.
- Fig. 1 shows schematically the stepwise treatment of the waste forward to the finished product .
- Figure 2 shows a preferred application of the insulation product according to the present invention.
- Step 1 the waste is collected from the consumer or industry, the waste being a residual waste after an introductory source sorting by the consumer. This means that glass, metals, wood and individual plastic sub ⁇ stances are already separated and delivered to a suitable receiver.
- the residual waste is transported, in a form which is defined earlier, in a tight container without being affected by possible rainy weather.
- the container is brought to the receiver station in the next step.
- Step 2 Sorting.
- an additional sorting of the waste is undertaken in order to remove the most significant of the possible glass-, metal-, wood- and plastic - parts which have not necessarily been removed earlier.
- the mass of waste is also conducted through a grinding machine for grinding up the waste so as to manage a simpler sorting.
- Step 3 Demoisturing, grinding up and mixing.
- the waste is conducted to a station where the waste is subjected to a compressing pressure in a piston press so as to be demoistured by pressing out water.
- the piston press operates at a pressure of 25 kg/cm 2 during demoisturing.
- the waste is hermetised and conserved by treatment with steam at a temperature in the range of 140 - 225°C, especially 160 - 180°C (as mentioned previously during Autoclaving, point a, about 120°C, for 15 minutes can however be sufficient) , the pressure being maintained at 5 - 15 kg/cm 2 and especially at about 10 kg. /cm 2 .
- the steam is supplied from a high pressure steam boiler.
- the treatment can besides be carried out as is evident during the earlier passage of the autoclaving process. Exhaust gases and waste water (condensed water) are treated as is stated in step 3.
- Step 5 Drying.
- the mass is converted to the insulation material.
- the drying is carried out in a spiral drying drum at a high temperature and for a sufficient period in the range 140 - 190°C, and especially at 140 - 180°C, and preferably at about 160°C for about 10 minutes.
- the drying is carried out until the material has a suffi ⁇ ciently low water activity, preferably as is defined earlier under point DRYING.
- bacteria killing and concerning means can be added to the material, which now has a dry approximately chip-like form.
- this step there can also be supplied ground up building waste, such as building plates and other wood in order adjust the content of the waste.
- Step 6 Treatment with fungus killers and the like.
- the mass of waste is now sterilised and is mixed with fungus-killing means and expansion means.
- the mass contains about 80% moisture and has a minced meat-like consistency.
- the mass is subjected to pelleting in order to condense/compress and mould the mass to a desired shape and density.
- Step 8 Drying with infra red radiation.
- the mass is subjected to infra red radiation up to 150°C.
- infra red radiation up to 150°C.
- Step 9 Grinding up.
- the part dried mass is ground down in a grinding apparatus to a desired granule size, preferably 1 - 3 mm.
- Step 10 Impregnation with water glass.
- the powdered mass of waste is impregnated and coated with an agent which makes the mass of powder to the smallest possible degree attracted to water, that is to say it becomes approximately water-repelling.
- Water glass more specifically sodium or calcium silicate (Na 2 Si0 3 or K 2 Si0 3 ) is such an impregnating agent. When these silicates are dissolved in water, a viscous fluid is formed. Water glass is employed to impregnating wood and paper materials in order to make these fire inhibiting.
- the powdered mass is led down into a treatment container where there is preprepared a bath of water glass having a Na 2 Si0 3 concentration of 35 weight %.
- Step 11 Drying. After submerging in the water glass solution, the impregnated mass is dried in a drying chamber at 140 - 180°C to a water activity of 0.6.
- Step 12 Finished product.
- the mass from step 11 is mixed with a binding agent, and the mixture is pressed into the form of a block (indicated by reference number 40 in Figure 2) in a casting mould having a mould well suited for whatever purpose.
- EPS styropore or styropore granules
- the mixture is so filled/poured into the casting mould in the usual manner and is subjected to the influence of steam at a temperature of 140 - 180°C, preferably 170°C and is compressed at a pressure in the range of 7 - 13 kg/cm 2 , and preferably at 10 kg/cm 2 .
- the styropore is hardened and expanded as a result of the styropore beads containing dissolved volatile petroleum ether (pentane) which is released by the treatment with hot steam.
- the volume of a block can increase by about 50°%.
- Styropore 42 of the insulation block 40 will be very light, and have a density down towards 0.02 g/cm 3 , and it has very good insulation capability.
- the finished insulation plate 40 which is wholly harmless to the environment, can be transferred to storage.
- the finished insulation plate consequently comprises mixed in waste material process treated in the form of chipped waste, wherein impregnating means and bacteria- killing and conserving means possibly being added.
- An insulation plate according to the invention can be divided up, such as by sawing, to any size and shape what ⁇ ever, and is well-suited for construction purposes, and especially in the construction of roads, railway lines, and airports.
- FIG. 2 shows such an application of the product according to the present invention.
- the Figure illustrates a cross-section through a road fill. After excavating/filling in order to form the basis for the roadway there is laid a water-permeable fabric 50. Upon this fabric 50 is placed a layer of insulation plates 40 where the plates are chained together in a manner known per se (for example according to the groove/tongue prin ⁇ ciple) . On the shoulder of the road to the left in the Figure the insulation plates can be arranged according to the invention on top of one another in a partially step- shaped design. On top of this layer of insulation plate is laid another fabric layer 52 after which a layer 54 of gravel material is laid on top of the layer of fabric.
- the gravel material is compacted in a well-known manner and the roadway is covered with asphalt or another suitable surface covering 56.
- the layer of insulation plate according to the invention will contri ⁇ bute to preventing the underlying basis for the roadway from freezing over, and problems with frost heave and the like.
- the waste ought to be exposed to water vapour 150 - 225°C (autoclaving) and thereafter is dried at 140 - 180°C (dry sterilising) .
- autoclaving ought to be carried out in ten minutes at 160°C. Further drying ought to be carried out to a water activity of 0.6.
- the material ought to be irradiated with infra red rays to a temperature of about 150°C.
- the drying and the irradiating of the waste fulfills these requirements, extra conservation efforts can be omitted. Besides it can be unnecessary to mix in binding agents for the manufacture of the moulded product . Assuming that the manufactured product will be further handled in a dry condition it will have long durability.
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97923348A EP0897438A1 (en) | 1996-05-10 | 1997-05-12 | Insulation element, method for preparing same, and use of the insulation element |
AU29167/97A AU2916797A (en) | 1996-05-10 | 1997-05-12 | Insulation element, method for preparing same, and use of the insulation element |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO961931A NO304882B1 (en) | 1996-05-10 | 1996-05-10 | Process for the treatment of consumer waste, a product thus produced, and its use |
NO961931 | 1996-05-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997043498A1 true WO1997043498A1 (en) | 1997-11-20 |
Family
ID=19899371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/NO1997/000124 WO1997043498A1 (en) | 1996-05-10 | 1997-05-12 | Insulation element, method for preparing same, and use of the insulation element |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0897438A1 (en) |
AU (1) | AU2916797A (en) |
NO (1) | NO304882B1 (en) |
WO (1) | WO1997043498A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1447196A1 (en) * | 2003-02-13 | 2004-08-18 | Louis Chometon | Method for recycling plastic materials |
WO2008044249A1 (en) * | 2006-10-09 | 2008-04-17 | Gabriele Andrighetti | Utilization of solid urban and industrial waste composed of plastic materials, to form road embankments |
EP2225053A2 (en) * | 2007-10-25 | 2010-09-08 | Energy Crops Co. Ltd | Method of manufacturing an article |
EP2631363A1 (en) * | 2012-02-21 | 2013-08-28 | Finnfoam Oy | Road construction and use of insulation plate in road construction |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH281347A (en) * | 1950-05-23 | 1952-03-15 | Senn Duerig Jakob | Process for producing a material that can be used for filling and thermal insulation. |
NO125229B (en) * | 1969-02-06 | 1972-08-07 | Raimund Jetzer | |
US3722378A (en) * | 1971-02-04 | 1973-03-27 | Dow Chemical Co | Insulated trafficked surfaces |
DE2224363A1 (en) * | 1972-05-18 | 1973-11-29 | Georg Dipl Ing Dip Kropfhammer | Building components formation - from domestic, agricultural or forestal waste |
WO1995021129A1 (en) * | 1994-02-04 | 1995-08-10 | David Edward Forder | Waste product articles |
-
1996
- 1996-05-10 NO NO961931A patent/NO304882B1/en unknown
-
1997
- 1997-05-12 EP EP97923348A patent/EP0897438A1/en not_active Withdrawn
- 1997-05-12 WO PCT/NO1997/000124 patent/WO1997043498A1/en not_active Application Discontinuation
- 1997-05-12 AU AU29167/97A patent/AU2916797A/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH281347A (en) * | 1950-05-23 | 1952-03-15 | Senn Duerig Jakob | Process for producing a material that can be used for filling and thermal insulation. |
NO125229B (en) * | 1969-02-06 | 1972-08-07 | Raimund Jetzer | |
US3722378A (en) * | 1971-02-04 | 1973-03-27 | Dow Chemical Co | Insulated trafficked surfaces |
DE2224363A1 (en) * | 1972-05-18 | 1973-11-29 | Georg Dipl Ing Dip Kropfhammer | Building components formation - from domestic, agricultural or forestal waste |
WO1995021129A1 (en) * | 1994-02-04 | 1995-08-10 | David Edward Forder | Waste product articles |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1447196A1 (en) * | 2003-02-13 | 2004-08-18 | Louis Chometon | Method for recycling plastic materials |
FR2851192A1 (en) * | 2003-02-13 | 2004-08-20 | Louis Chometon | PROCESS FOR RECYCLING RIGID AND SEMI-RIGID PLASTIC MATERIALS, AS WELL AS AGGREGATE SUBSTITUTE, UNDERCOAT AND APPLICATION MATERIAL COMPRISING SUCH A SUBSTITUTE |
WO2008044249A1 (en) * | 2006-10-09 | 2008-04-17 | Gabriele Andrighetti | Utilization of solid urban and industrial waste composed of plastic materials, to form road embankments |
EP2225053A2 (en) * | 2007-10-25 | 2010-09-08 | Energy Crops Co. Ltd | Method of manufacturing an article |
EP2631363A1 (en) * | 2012-02-21 | 2013-08-28 | Finnfoam Oy | Road construction and use of insulation plate in road construction |
Also Published As
Publication number | Publication date |
---|---|
EP0897438A1 (en) | 1999-02-24 |
NO961931L (en) | 1997-11-11 |
NO304882B1 (en) | 1999-03-01 |
NO961931D0 (en) | 1996-05-10 |
AU2916797A (en) | 1997-12-05 |
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