CN104086131B - Road pavements that building waste is prepared with agstone compound and preparation method thereof - Google Patents
Road pavements that building waste is prepared with agstone compound and preparation method thereof Download PDFInfo
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- CN104086131B CN104086131B CN201410356408.2A CN201410356408A CN104086131B CN 104086131 B CN104086131 B CN 104086131B CN 201410356408 A CN201410356408 A CN 201410356408A CN 104086131 B CN104086131 B CN 104086131B
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- building waste
- micropowder
- road pavements
- exciting agent
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- 239000002699 waste material Substances 0.000 title claims abstract description 89
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- -1 agstone compound Chemical class 0.000 title description 31
- 239000000463 material Substances 0.000 claims abstract description 97
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 66
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 23
- 150000001875 compounds Chemical class 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 38
- 239000000203 mixture Substances 0.000 claims description 38
- 239000004567 concrete Substances 0.000 claims description 27
- 239000004568 cement Substances 0.000 claims description 23
- 150000003839 salts Chemical class 0.000 claims description 16
- 239000000178 monomer Substances 0.000 claims description 12
- 239000011449 brick Substances 0.000 claims description 11
- 239000000654 additive Substances 0.000 claims description 10
- 239000010881 fly ash Substances 0.000 claims description 9
- 230000000996 additive effect Effects 0.000 claims description 8
- 239000006063 cullet Substances 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 7
- 229920001577 copolymer Polymers 0.000 claims description 6
- 102000004190 Enzymes Human genes 0.000 claims description 4
- 108090000790 Enzymes Proteins 0.000 claims description 4
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 3
- 102000004160 Phosphoric Monoester Hydrolases Human genes 0.000 claims description 2
- 108090000608 Phosphoric Monoester Hydrolases Proteins 0.000 claims description 2
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 claims description 2
- 125000000188 beta-D-glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims description 2
- 238000007334 copolymerization reaction Methods 0.000 claims description 2
- 125000003545 alkoxy group Chemical group 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 claims 1
- 239000000843 powder Substances 0.000 abstract description 24
- 235000019738 Limestone Nutrition 0.000 abstract description 3
- 239000006028 limestone Substances 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 29
- 239000004698 Polyethylene Substances 0.000 description 17
- 239000000835 fiber Substances 0.000 description 17
- 229920000573 polyethylene Polymers 0.000 description 17
- 239000002585 base Substances 0.000 description 16
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 15
- 238000012360 testing method Methods 0.000 description 14
- 239000010813 municipal solid waste Substances 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 239000002994 raw material Substances 0.000 description 11
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- 239000003638 chemical reducing agent Substances 0.000 description 9
- 238000010276 construction Methods 0.000 description 9
- 229910052500 inorganic mineral Inorganic materials 0.000 description 9
- 239000011707 mineral Substances 0.000 description 9
- 235000010755 mineral Nutrition 0.000 description 9
- WHNWPMSKXPGLAX-UHFFFAOYSA-N N-Vinyl-2-pyrrolidone Chemical group C=CN1CCCC1=O WHNWPMSKXPGLAX-UHFFFAOYSA-N 0.000 description 8
- 229960000913 crospovidone Drugs 0.000 description 8
- 238000000227 grinding Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 235000013809 polyvinylpolypyrrolidone Nutrition 0.000 description 8
- 229920000523 polyvinylpolypyrrolidone Polymers 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 239000000292 calcium oxide Substances 0.000 description 7
- 235000012255 calcium oxide Nutrition 0.000 description 7
- 238000013461 design Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 239000003607 modifier Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 239000004566 building material Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
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- 238000012986 modification Methods 0.000 description 3
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- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 239000003755 preservative agent Substances 0.000 description 3
- 230000002335 preservative effect Effects 0.000 description 3
- 230000008929 regeneration Effects 0.000 description 3
- 238000011069 regeneration method Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 239000004067 bulking agent Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 239000001110 calcium chloride Substances 0.000 description 2
- 229910001628 calcium chloride Inorganic materials 0.000 description 2
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000007720 emulsion polymerization reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
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- 230000032050 esterification Effects 0.000 description 2
- 238000005886 esterification reaction Methods 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 230000036571 hydration Effects 0.000 description 2
- 238000006703 hydration reaction Methods 0.000 description 2
- 238000011835 investigation Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000007885 magnetic separation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 229920005646 polycarboxylate Polymers 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L sodium carbonate Substances [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- WROUWQQRXUBECT-UHFFFAOYSA-N 2-ethylacrylic acid Chemical compound CCC(=C)C(O)=O WROUWQQRXUBECT-UHFFFAOYSA-N 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- 0 CC(C)=C(*)c(cc1)ccc1F Chemical compound CC(C)=C(*)c(cc1)ccc1F 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910000329 aluminium sulfate Inorganic materials 0.000 description 1
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 description 1
- 235000011128 aluminium sulphate Nutrition 0.000 description 1
- 229910001870 ammonium persulfate Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 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
- 239000010430 carbonatite Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229940030341 copper arsenate Drugs 0.000 description 1
- RKYSWCFUYJGIQA-UHFFFAOYSA-H copper(ii) arsenate Chemical compound [Cu+2].[Cu+2].[Cu+2].[O-][As]([O-])([O-])=O.[O-][As]([O-])([O-])=O RKYSWCFUYJGIQA-UHFFFAOYSA-H 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000012407 engineering method Methods 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000011396 hydraulic cement Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000005445 natural material Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 239000005022 packaging material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
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- 230000008439 repair process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000010420 shell particle Substances 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 238000003900 soil pollution Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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- 238000004154 testing of material Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Road Paving Structures (AREA)
Abstract
The invention discloses road pavements prepared with building waste compound lime stone powder and preparation method thereof, gross weight gauge based on this road pavements, comprise the active micropowder of 1-15 weight %, 20-40 weight % agstone, 40-60 weight % separates prepared earth material and the exciting agent of 0.02-0.08 weight % from building waste. The road pavements of the present invention, while meeting road index request, makes building waste be fully used.
Description
Technical field
The present invention relates to a kind of road pavements prepared by building waste and preparation method thereof with agstone compound.
Background technology
All kinds of garbages such as building waste refers mainly to build, all kinds of structures, building etc. are built, repair, remove and carry out to produce in house decoraton process by unit in charge of construction or individual earth, waste residue, mortar. The basic composition of the building waste that different types of building structure produces is consistent, main component includes earth, be scattered mortar, waste residue, remaining armored concrete pile crown is blocked in bituminous concrete fragment, piling, cement concrete, pick cutter produce masonry, various old metal, timber, all kinds of building material product packaging material, wall insulated board, the waste material that fitment process produces and other garbage.
Agstone main component is calcium carbonate (CaCO3), Calx and limestone are used as construction material in a large number, are also the important source material of much industry. In recent years, developing rapidly of the basis such as water conservancy, traffic, work China Democratic National Construction Association and civilian installation construction, face the problem that flyash is in short supply gradually, especially this situation of southwest is more prominent, and the long distance transportation of flyash will improve concrete production cost. Find one especially can draw materials nearby, the present inventor finds by studying, it, because being prone to grinding, low reaction activity, low water demand ratio, can be made road concrete have works fine and later strength with building waste combination, and can improve concrete early stage wearability by agstone.
On the other hand, building waste is compared with other municipal refuse, there is the feature such as low toxicity, harmless, resourcebility utilization, fast development along with urban construction, natural material will be day by day exhausted, if building waste is carried out effective regeneration utilization by certain technology, be possible not only to solve this contradiction, the rubbish harm to environment can also be eliminated, it is achieved economic sustainable development. The research ratio that building waste is recycled by China is later, though achieving certain achievement in research at present, but still lacking relatively systematic research, lacking standard and the code of perfect regeneration techniques. In China, building different kinds of roads needs substantial amounts of material, if it is possible to is used in road engineering by building waste, then will produce great economic worth.
Simultaneously, the factors such as the multiformity of building waste and the standard-required of road pavements increasingly stringent so that building waste application in road pavements is subject to many limitations, for instance building waste utilization rate is not high, in road pavements, the ratio shared by building waste is less, etc.
CN1133269A has opened a kind of Binder Materials for road engineering and other civil engineering and production method, its product is mainly used in requirement engineering wear-resisting, corrosion resistant and anti-drying shrinkage requirement is higher, the heat of hydration is relatively low other engineering, it is characterised in that this product (cement) is by the slag after clearing up process magnetic separation in advance and slag, flyash, portland cement clinker, mixes containing aluminium sulfate and silicate mineral many kinds of substance grinding.
CN101239804A discloses a kind of method adopting building waste to manufacture building materials, urban architecture material is sequentially carried out sorting by it, magnetic separation, primary fragmentation and gravity separation, building waste is separated into heavy material, light material and mineral materials, and be used for manufacturing construction material after second-time breakage by described mineral materials, the raw material of described construction material includes: fibre material 5-10 part, mineral materials 40-60 part, low-water cement 20-30 part and unclassified stores 0-30 part, the production process of described construction material is by fibre material, mineral materials and unclassified stores mix homogeneously, add low-water cement mix homogeneously, add water stirring pulping, insert vibration moulding or extrusion forming in mould, structural lumber product is formed after natural curing. in this patent documentation, with only the mineral materials in building waste, building waste overall utilization is low, obtain the complex steps of mineral materials, and it is not high in the ratio of construction material Minerals material, time even more important, this building waste is for preparing plate product, rather than for preparing, intensity, resistance to water is required higher road pavements.
CN101348343A discloses a kind of building materials utilizing building waste to produce and preparation method thereof, solve the technical problem that material configuration is simple, reduce cost, it is by the following technical solutions: a kind of building materials utilizing building waste to produce, including weight ratio number be: building waste 85-97 part, quick lime 3-15 part, described building waste includes masonry and concrete, effective CaO content >=85% in described quick lime. The method comprises the following steps: building waste is carried out primary election by (1); (2) comminuted starting materials, is crushed to granularity for more than 0 to 4mm, being milled to by the quick lime of CaO content >=85% less than 100 orders by building waste raw material; (3) raw material coordinates, and by weight building waste 85-97 part, quick lime 3-15 part, the building waste pulverized and quick lime fine powder is transported to after being mixed evenly slaking silos, stops 1-3 hour; (4) molding, enters blender from slaking silos material out, after adding the 5-8% water mix of total dry powder consumption, is delivered to feed bin, is pressed into variously-shaped section bar on brick machine, and the pressure of use is 200-1500 ton, 1-3 second pressing time; (5) autoclave curing, is 190-230 DEG C in temperature, maintenance 6-10 hour when pressure is 7-10kg, is building materials finished product. In this patent documentation, it is mainly used for manufacturing molding building material product, it is impossible to enough make road pavements, for instance intensity is nowhere near.
WO2006033561A1 discloses a kind of method of building waste sorting.In the process, the building castoff being ground into preliminary dimension is joined in the liquid of stillpot, and in groove, it is separated into various component according to proportion, wherein, described liquid has the reference specific gravity low but higher than the proportion of remaining ingredient than the proportion reclaiming component, thus only making the component to reclaim be easily separated by being deposited to the bottom of described stillpot. According to described method, it is possible to other impurity that easily will be contained in building castoff separates with the aggregate of the repeatable utilization of high-quality. Specifically, the reference specific gravity separating liquid is carried out suitable adjustment, thus even can easily will separate with the aggregate of repeatable utilization than the various impurity (tile, Rhizoma Begoniae Willsonii, bituminous concrete, cement lumps etc.) of water weight. The document concern is primarily with the sorting of building waste.
JP2006257681A discloses a kind of method utilizing building waste to manufacture mineral material, the method can effectively reduce the volatilization of the VOC that building waste produces when high-temperature process, it is by burning shell and pulverizing the VOC produced when the porous shell particle of generation adsorbs building waste high-temperature process with described material, so that the recycling of building waste is more green and safety. The method cost is higher.
KR100938212B1 discloses a kind of compositions for building the road, and said composition comprises 20-40 weight % resin, 22-27 weight % environmental protection is gathered materials, 22-27 weight % recirculation chip material, 13-18 weight percent filler, 1.5-5 weight pigment and and 1.5-3 weight % common additives. Said composition cost contains a large amount of resin, and cost is higher and not ageing-resistant, additionally, due to lacking cement component, and at least intensity wretched insufficiency.
Non-patent literature " experimental study that construction refuse regenerated micropowder utilizes ", Ma Chuntao etc., Ningxia engineering, 8th volume the 1st phase, in March, 2009 discloses the method for manufacture and use thereof of construction refuse regenerated micropowder, wherein the raw material of regenerative micro powder is in the processes such as, screening broken at regenerative bone material by concrete, inevitably results from accounting for the fine powder material of regeneration aggregate quality about 10%, particle diameter < 0.16mm, grinds the high specific surface area obtaining micropowder and is only 735.4m2/kg。
Need the road pavements of a kind of building waste compound lime stone powder, the utilization rate making building waste and agstone is high, and the performance of this road pavements can reach the performance of presently used road pavements, further, road concrete can be made to have works fine and later strength, and concrete early stage wearability can be improved.
Summary of the invention
In order to overcome the above-mentioned problems in the prior art, the present inventor is through further investigation, propose a kind of new solution, the primary raw material making road pavements is building waste and agstone, and building waste and agstone can be made to be comprehensively utilized, the road pavements performance prepared completely can be up to standard. The technical scheme is that
On the one hand, provide a kind of road pavements, gross weight gauge based on this road pavements, it comprises the micropowder that 1-15 weight % is active, 20-40 weight % agstone, 40-60 weight % separates prepared earth material and the exciting agent of 0.02-0.08 weight % from building waste.
The content of the active micropowder extracted in described building waste is preferably 5-10 weight %, more preferably 8-10 weight %.
The content of described agstone is preferably 20-30 weight %, more preferably 20-25 weight %.
The described content separating prepared earth material from building waste is preferably 40-55 weight %, more preferably 40-50 weight %.
The content of described exciting agent is preferably 0.02-0.06 weight %, more preferably 0.03-0.05 weight %.
Described road pavements does not preferably comprise cement, Colophonium or cement concrete.
Described active micropowder can pass through by the Rhizoma Begoniae Willsonii in building waste, blue bricks, watt and/or cullet are broken, grind and obtain.
Described active micropowder be the following two kinds micropowder (1) and (2) with 1: 3-3: 1 ratio mix and prepare: (1) by by the Rhizoma Begoniae Willsonii in building waste, blue bricks, watt and/or cullet crush, be ground to specific surface area for 750-2200m2/ kg, it is preferable that 1000-2200m2/ kg, more preferably 1500-2200m2The micropowder that/kg obtains; (2) being crushed by flyash, being ground to specific surface area is 800-2600m2/ kg, it is preferable that 1200-2600m2/ kg, more preferably 1800-2600m2The micropowder that/kg obtains. .
Described earth material can be the soil separated from building waste and great soil group impurity.
Described exciting agent can be compound bio exciting agent, it is also possible to for bases exciting agent and/or salt exciting agent.
In prepared by the existing regenerative micro powder being raw material with building waste, its raw material adopted is substantially all that waste concrete prepares the thin particulate matter produced in aggregate, and the micropowder prepared is difficult to obtain bigger specific surface area. With greater need for it is noted that in prepared by the existing regenerative micro powder being raw material with building waste, in order to make the building prepared or road pavements meet requirement, only substitute part of cement in concrete material with regenerative micro powder, and cement can not be substituted completely.
The present inventor has now surprisingly been found that, by by the Rhizoma Begoniae Willsonii in building waste, blue bricks, watt and/or cullet carry out crushing, grinding, the micropowder that the performance of high surface is very excellent can be obtained, it has exceeded cement at some aspect of performance after being excited by the exciting agent of the present invention, make it possible to substitute completely cement conventionally used in road pavements, and the performance indications required by urban road laying can be reached simultaneously. Speculate its reason, be possibly due to concrete in building waste and the Rhizoma Begoniae Willsonii in building waste, blue bricks, watt and/or cullet compared with, water absorption is relatively big, intensity is relatively low, fragility is relatively big, and these features cause that the micropowder prepared by regenerated waste concrete is difficult to the cement substituting in road pavements completely. By contrast, brick powder is used as road pavements when reaction, the SiO in chemical composition2And Al2O3Isoreactivity component and the component such as calcium hydroxide reaction in exciting agent, generate the products such as hydrated calcium silicate, drated calcium aluminate or hydrated calcium aluminate sulfate, thus forming cement strength.
The present inventors have additionally discovered that, the specific surface area of active micropowder (1) is only at 750-2200m2Can effectively play the vicarious function of cement in the scope of/kg, make road pavements obtain required comprcssive strength. When the specific surface area of micropowder is less than 750m2During/kg, then the lateral reactivity of this micropowder is inadequate, for instance make the comprcssive strength of road, cracking resistance not enough. And when specific surface area is more than 2200m2During/kg, then performance improves no longer notable and preparation cost increase. By contrast, when the grinding using discarded concrete to carry out micropowder, owing to its water absorption is big, it is easy to cause humidity, and due to complicated component, comprise the sand grains that certain proportion is difficult to grind, even if being also difficult to obtain 500m by grinding2The specific surface area of/more than kg, the features such as described water absorption is big in addition, intensity is low, cause the cement being merely capable of substituting finite part in road pavements.Rhizoma Begoniae Willsonii in the present invention, blue bricks, watt and/or the grinding of cullet can carry out under abrasive media exists. Described grinding can carry out under abrasive media exists, and described abrasive media is preferably the blending agent of the yttrium stable zirconium oxide ball of Zirconium orthosilicate. ball sum.
Equally, it has been found that the specific surface area of active micropowder (2) is only at 800-2600m2Road concrete can be effectively made to have works fine and later strength and early stage wearability in the scope of/kg.
In construction rubbish, Rhizoma Begoniae Willsonii, blue bricks and tile account for the about 7.0 weight % of rubbish composition, and in removing rubbish, Rhizoma Begoniae Willsonii accounts for the about 5 weight % of rubbish composition, there is also many unhydrated cement in building waste, these are all the source that the preparation of micropowder of the present invention provides abundance.
About building waste component, removing the component of rubbish from old building, concrete proportion is up to more than 50%, next to that earth (about 10%), stone and rubble (about 10%) etc.; Constructing from New Buildings the component of rubbish, earth ratio about more than 30%, next to that stone and rubble (about 25%), concrete (about 20%) etc. These provide sufficient source for earth material in road pavements of the present invention.
In the road pavements of the present invention, exciting agent can be compound bio exciting agent, it is also possible to for bases exciting agent and/or salt exciting agent.
Described compound bio exciting agent can be TerraZyme enzyme, β-glucosyl enzym and phosphatase with (10～15): (1～2): the mixture of (2～3) weight ratio.
Combination by these 3 kinds of enzymes, it is possible to make it find mutual promoting action. When the road pavements using described compound bio exciting agent is used as base material, significantly unconfined compressive strength, bending resistance can draw performance, resistance to compression and anti-bending rollering modulus, enable in particular to make unconfined compressive strength relative to described without described compound bio exciting agent or the road pavements using single creature exciting agent (such as TerraZyme enzyme), it is possible to increase at least about 17%. The compound bio exciting agent of the present invention can also add the stability of paver, extends the life-span of road, and can in long-term existence basic unit, it is possible to keeps solidification effect for a long time.
In the road pavements of the present invention, about described bases exciting agent and/or salt exciting agent, it is preferred to the combination of bases exciting agent and salt exciting agent, i.e. composite exciting agent. Alkali-activated carbonatite mainly increases the OH of slurry-Concentration. improve liquid phase basicity, make the pH value maintenance about about 12 of liquid phase, this formation being conducive to entringite and C3S、C2The raising of S hydration rate, thus exciting the activity of micropowder in road pavements.
It addition, being crushed by flyash, being ground to specific surface area is 800-2600m2The micropowder that/kg obtains by with aforementioned Rhizoma Begoniae Willsonii, blue bricks, watt and/or cullet to crush, be ground to specific surface area be 750-2200m2The micropowder phase grating that/kg obtains, the two can play mutually collaborative facilitation, for instance the micropowder obtained by flyash can make by Rhizoma Begoniae Willsonii, blue bricks, watt and/or the excitation rate of micropowder that obtains of cullet improve nearly one times.
Described exciting agent can be compound bio exciting agent, it also may be preferable for for bases exciting agent and/or salt exciting agent. The present inventors have additionally discovered that, being likely difficult to by single alkali-activator and make road pavements reach most desirable, exciting agent is poor with the matching of other material, and the stability of road pavements is undesirable.The present inventor, through big quantity research and test, seeks the optimum matching relation of composite exciting agent and described micropowder and earth class raw material, finally found that generally it is also preferred that add a certain amount of salt exciting agent.
Described composite exciting agent is bases exciting agent A and the compositions of salt exciting agent B, and the weight ratio of exciting agent A and B is 2: 1-6: 1; Bases exciting agent A is gross weight gauge 20-30 weight %Ca (OH) based on bases exciting agent A2, 10-20 weight %NaOH, 20-40 weight %Na2CO3With 20-30 weight %Na2SiO3·9H2The mixture of O; Salt exciting agent B is the gross weight gauge 20-40 weight %Na based on salt exciting agent B2SO4, 20-30 weight %CaSO4·2H2O, 10-20 weight %CaCl2With 20-30 weight %Ca2SO4Mixture.
This road pavements can also comprise the 1-5 weight % lumber fibre material from the modified of building waste and enhancing, and lumber fibre material that is wherein said modified and that strengthen prepares by the following method:
(1) culled wood in building waste is chopped into the segment materials that maximum gauge is 0.5-2cm;
(2) segment materials of chopped is placed in agitator tank, add the aqueous solution of surface modifier, stir evenly, the mass ratio of segment materials and surface modifier is 200: 1-500: 1, described surface modifier is crospovidone, and in solution, the concentration of crospovidone is 20-30 weight %;
(3) in the segment materials after surface modification, polyethylene powders, polypropylene powder or its mixture are added, mix homogeneously, making the surface attachment polyethylene powders of segment materials, polypropylene powder or its mixture, the mass ratio of described segment materials and polyethylene, polypropylene or its mixture is 10: 1-100: 1;
(4) compound step (3) obtained is at 110 DEG C-220 DEG C, it is preferable that 120 DEG C-180 DEG C, more preferably 130-170 DEG C when heat treatment 30-60 minute, the lumber fibre material being modifiied after being cooled to room temperature and strengthening.
Described timber segment materials and polyethylene powders, the appropriate mass ratio of polypropylene powder or its mixture, make after heat treatment, the polyethylene of hot melt and/or polypropylene can substantially completely be coated with the surface of timber fragment just, if described amount of polymeric material is less, the surface of timber fragment then can not be completely covered, make timber segment materials be prone to degraded in as roadbed material use procedure such as to rot, if and described amount of polymeric material is excessive, then become present aspect be not effective, and the performance such as toughness and some strength that make timber itself are difficult to bring into play.
As mentioned before, in current building waste is recycled, waste and old wood in building waste is not utilized effectively, decoration garbage such as, comprises the wood type building waste of significant proportion, all without being fully used, it is incinerated often, does not only effectively utilize it to be worth, also result in Heavy environmental pollution. For this problem, the present inventor finds through research, by according to the method described above timber being modified and strengthening, it is possible to particularly advantageously used as in the steady layer of the water of road, basic unit etc. Generally understanding in the past is that timber is prone to rotten, particularly in the environment having water to also exist, it is difficult to be used in road pavements, it is more difficult to be used in the steady layer of water. In the present invention, by it being modified and enhancement process so that it is have enough resistances to water, even if it is used in the steady layer of water, basic unit etc. in urban road laying simultaneously, cause material modified aging without the effect due to light.
Described polyethylene, polypropylene or its mixture are preferred from the waste plastics in rubbish. Preferably polyethylene, more preferably linear low density polyethylene (LLDPE). Known in the art, waste plastics (such as various waste plastic bottles) in rubbish such as building waste is mainly linear low density polyethylene (LLDPE), it has, and intensity height, good toughness, rigidity be strong, heat-resisting, cold-resistant, good chemical stability, also there is the performances such as good resisting environmental stress and cracking, tear-resistant intensity, and can acid and alkali resistance, organic solvent etc. The present inventor finds through further investigation, and material property required in these performances described and roadbed material is very identical, it is thus preferred to use the polyethylene from the waste plastics in rubbish that lumber fibre material is strengthened. The lumber fibre material obtained by the inventive method not only further enhancing the toughness of lumber fibre itself, additionally provides high intensity, high rigidity, high cold-resistant, the such desired properties of high chemical stability heat-resisting, high. The waste plastics of the polyethylene material in building waste is ground into powder namely can be used in described method.
With this formed sharp contrast be, all the time, even if culled wood is recycled, also usually timber is carried out preservative treatment, but this needs to use preservative, preservative is usually the salt such as chromate, borate, copper arsenate, if used in road pavements, very serious environmental pollution can be caused, for instance soil pollution.
In addition, in the lumber fibre modifying process of the present invention, surface physics and chemical constitution for timber, the Interfacial compatibilization agent used from other fields a large amount of filters out crospovidone as Interfacial compatibilization agent, crospovidone has the side base of polarity and hydrophobic main chain, can contact with timber and polyethylene (or polypropylene) respectively, play the compatibilization reducing interfacial tension, the use of this polymer bulking agents, avoid bulking agent migration in use, be conducive to having given play to stable compatibilization effect, it is advantageously ensured that the stability of composite simultaneously. crospovidone being configured to solution, it is preferable that aqueous solution uses, method is easy, does not use organic solvent, and then also has the good feature of environmental protection.
The preparation method that the invention still further relates to above-mentioned road pavements, the method comprises the following steps: micropowder active for 1-15 weight %, 20-40 weight % agstone, 40-60 weight % separate the exciting agent mix homogeneously of prepared earth material, 0.02-0.08 weight % from building waste, and its order by merging is as follows:
(1) exciting agent of micropowder active for 1-15 weight %, 20-40 weight % agstone and 0.02-0.08 weight % is mixed, be stirred well to uniformly;
(2) mixture step (1) obtained separates prepared earth material mixing with 40-60 weight % from building waste, is stirred well to uniformly.
Preferably, said method comprising the steps of: by micropowder active for 1-15 weight %, 20-40 weight % agstone, 40-60 weight % separates prepared earth material from building waste, exciting agent with 0.02-0.08 weight %, and optionally 1-5 weight % is from the additive mix homogeneously of the modified of building waste and the lumber fibre material strengthened and optional 0.01-2 weight %, its order by merging is as follows:
(1) exciting agent of micropowder active for 1-15 weight %, 20-40 weight % agstone and 0.02-0.08 weight % is mixed, be stirred well to uniformly;
(2) mixture optionally step (1) obtained mixes from the additive of the modified of building waste and the lumber fibre material strengthened and 0.01-2 weight % with optional 1-5 weight %; With
(3) mixture step (2) obtained separates prepared earth material mixing with 40-60 weight % from building waste, is stirred well to uniformly.
The inventors discovered that, feed in raw material while common with prior art and compared with the method for mixing, exciting agent more can excite the activity of micropowder, its reason essentially consists in, if earth material very big with ratio for low-down for ratio exciting agent is mixed in initial mixing step, then easily wrapped up by earth material, so that it is difficult to contact with micropowder material; It addition, the general granularity of agstone is thinner and fine and close, it is possible to mix with activity micropowder and exciting agent in the initial step, and also the density of compound can be improved.
In a preferred embodiment, the timber sorted out in building waste separation step process can as the raw material of lumber fibre material that is modified and that strengthen, and the method for the lumber fibre material being modifiied by the preparation of described timber and being strengthened comprises the following steps:
(1) culled wood in building waste is chopped into the segment materials that maximum gauge is 0.5-2cm;
(2) segment materials of chopped is placed in agitator tank, add the aqueous solution of surface modifier, stir evenly, the mass ratio of segment materials and surface modifier is 200: 1-500: 1, described surface modifier is crospovidone, and in solution, the concentration of crospovidone is 20-30 weight %;
(3) in the segment materials after surface modification, polyethylene powders, polypropylene powder or its mixture are added, mix homogeneously, making the surface attachment polyethylene powders of segment materials, polypropylene powder or its mixture, the mass ratio of described segment materials and polyethylene, polypropylene or its mixture is 10: 1-100: 1;
(4) compound step (3) obtained is at 110 DEG C-220 DEG C, it is preferable that 120 DEG C-180 DEG C, more preferably 130-170 DEG C when heat treatment 30-60 minute, the lumber fibre material being modifiied after being cooled to room temperature and strengthening.
Certainly, skilled person realizes that, if the amount of polyethylene powders that the timber in building waste, waste plastics obtain can not meet the demand of dispensing, also optionally can obtain from other refuse process field.
In a further preferred embodiment, the road pavements of the present invention can also comprise 0.01-5 weight %, it is preferable that the concrete admixture of 0.05-2 weight %.
The concrete admixture of the present invention preferably comprises or by making following monomer (I) and the copolymer of monomer (II) copolymerization acquisition:
Wherein R1Alkyl for C1-C6, for instance ethyl, R2Alkoxyl for C2-C6, for instance ethyoxyl, n is the integer of 2-10; With
(II) α, beta-unsaturated carboxylic acid or its salt;
Wherein the weight ratio of monomer (I) and (II) is 50-95: 5-50, and the weight average molecular weight of described copolymer is 500-2000.
In described structure, the existence repeating ethoxy unit further enhancing the concrete water-reducing property of making.
Most preferably, described α, beta-unsaturated carboxylic acid has following chemical structural formula:
Find by replacing at phenyl ring para-position F, it is possible to further enhance the water-reducing property of copolymer, such that it is able to add the described additive being low to moderate 0.01 weight % in road pavements just can realize required water-reducing property.
This additive polymer with excellent water-reducing property of the present invention or its analog not yet have report.
The polymerization that polymerization can adopt this area conventional carries out, for instance polymerisation in bulk, polymerisation in solution, emulsion polymerization or suspension polymerisation.
The present inventor finds through research, by adding such additive, it is provided that excellent water-reducing property, the mobility preventing road pavements reduces over time, being very beneficial for constructing in urban road laying, and make it possible to be prevented effectively from the use of cement, road intensity is high.
Detailed description of the invention
By specific examples below and comparative example, further describe the present invention, but embodiment is merely to illustrate, the scope of the present invention can not be limited.
In the present invention, properties test is referred to following standard and carries out: 1, GB/T1346 " cement normal consistency water consumption, setting time, the stability method of inspection "; 2, GB/T17671-1999 " Test method for strength of hydraulic cement mortar "; 3, cement water reducing agent quality standard and test method JGJ56-84; 4, GB8076-2008; 5, JTGE51-2009 highway stabilized with inorganic binder testing of materials code; With 6, Ministry of Communications's " highway road surface construction technique normalizing " of issuing.
Embodiment 1
Prepare road pavements 3 tons heavy, based on the gross weight gauge of this road pavements, it comprises about 14 micropowders active for weight %, about 25.95 weight % agstones, about 60 weight % separate prepared earth material and the exciting agent of about 0.05 weight % from building waste. Wherein, described active micropowder by jaw crusher and grinder by broken for the Rhizoma Begoniae Willsonii in building waste, grind, it is thus achieved that the specific surface area of micropowder be 2000m2/ kg, by jaw crusher and grinder by broken for flyash, grind, it is thus achieved that the specific surface area of micropowder be 2100m2/ kg, mixes the two with the weight ratio of 1: 1; Described earth material is the soil separated from building waste, the earth that mainly engineering construction produces; Described agstone is the agstone from Peng Xuan mineral products processing factory; Exciting agent is bases exciting agent A and the compositions of salt exciting agent B, and the weight ratio of exciting agent A and B is 5: 1; Bases exciting agent A is the gross weight gauge 30 weight %Ca (OH) based on bases exciting agent A2, 10 weight %NaOH, 30 weight %Na2CO3With 30 weight %Na2SiO3·9H2The mixture of O; Salt exciting agent B is the gross weight gauge 30 weight %Na based on salt exciting agent B2SO4, 25 weight %CaSO4·2H2O, 15 weight %CaCl2With 30 weight %Ca2SO4Mixture.
In described road pavements preparation process, first exciting agent and micropowder and agstone are sufficiently mixed in agitator, then with dregs material mixing. According to standard Road Design specification, take a certain amount of described material, make the test specimen of Φ × h=10cm × 10cm, test its 28d unconfined compressive strength. Through measuring, the intensity of its 28d, up to 1.82MPa, fully meets the requirement of strength (0.8MPa) of advanced road roadbed embankment material.
Comparative example 1
Preparing road pavements 3 tons heavy according to the operation sequence identical with embodiment 1, its specific surface area that the difference is that only that Rhizoma Begoniae Willsonii is broken, grind the weight such as the micropowder use that obtains with embodiment 1 is about 500m2The building refuse concrete of/kg is broken, grind the micropowder obtained substitutes. According to standard Road Design specification, take a certain amount of described material, make the test specimen of Φ × h=10cm × 10cm, test its 28d unconfined compressive strength according to the method identical with embodiment 1.Through measuring, the intensity of its 28d is 0.79MPa, is unsatisfactory for the requirement of strength of advanced road roadbed embankment material.
Comparative example 2
Preparing road pavements 3 tons heavy according to the operation sequence identical with embodiment 1, its specific surface area that the difference is that only that Rhizoma Begoniae Willsonii is broken, grind the micropowder obtained with embodiment 1 is 500m2/ kg, the specific surface area of the micropowder that flyash is broken, grinding obtains is 600m2/ kg. According to standard Road Design specification, take a certain amount of described material, make the test specimen of Φ × h=10cm × 10cm, test its 28d unconfined compressive strength according to the method identical with embodiment 1. Through measuring, the intensity of its 28d is 0.75MPa, is unsatisfactory for the requirement of strength of advanced road roadbed embankment material.
Comparative example 3
Preparing road pavements 3 tons heavy according to the operation sequence identical with embodiment 1, itself and the difference is that only of embodiment 1 do not use salt exciting agent B, and the bases exciting agent A of the weight such as its use substitutes. According to standard Road Design specification, take a certain amount of described material, make the test specimen of Φ × h=10cm × 10cm, test its 28d unconfined compressive strength according to the method identical with embodiment 1. Through measuring, the intensity of its 28d is 0.81MPa, meets the requirement of strength of advanced road roadbed embankment material reluctantly.
Embodiment 2
The preparation of the lumber fibre material modifiied and strengthen
(1) it is the 0.5-2cm segment materials not waited that the culled wood in building waste is chopped into maximum gauge;
(2) being placed in agitator tank by the segment materials of chopped, add the crospovidone aqueous solution of 25 weight %, stir with agitator, the mass ratio of segment materials and surface modifier is 300: 1;
(3) adding polyethylene powders in the segment materials after surface modification, be sufficiently mixed so that it is uniformly, the mass ratio making the surface attachment polyethylene powders of segment materials, described segment materials and polyethylene is 80: 1;
(4) compound that step (3) is obtained heat treatment 45 minutes, lumber fibre material being modifiied after being cooled to room temperature and strengthening when 135 DEG C.
Embodiment 3
Road pavements 3 tons heavy is prepared, the lumber fibre material of its modified and enhancing prepared with the embodiment 2 of the 3 weight % that the difference is that only the road pavements gross weight being incorporated as embodiment 1 on the basis of the road pavements of embodiment 1 of embodiment 1 according to the operation sequence identical with embodiment 1. According to standard Road Design specification, take a certain amount of described material, make the test specimen of Φ × h=10cm × 10cm, test its 28d unconfined compressive strength according to the method identical with embodiment 1. Through measuring, the intensity of its 28d is 2.31MPa, and unconfined compressive strength intensity improves 27%, fully meets the requirement of strength of advanced road roadbed embankment material, and also meets the unconfined compressive strength requirement of highway.
Embodiment 4: the preparation of additive
The chemical structural formula of monomer (I) is:
Wherein R1For ethyl, R2Ethyoxyl, n is 5, this monomer can by being undertaken Polyethylene Glycol and ethylacrylic acid conventionally esterification process being esterified, then by esterification products conventionally eliminate reaction with ethyoxyl chlorine and prepare, or can directly commercially available from Sigma-Aldrich company;
The chemical structural formula of monomer (II) is:
This monomer is available commercially from Solution on Chemical Reagents in Shanghai company;
Adopt emulsion polymerization, 80g monomer (I) and 10g monomer (II) and 200mL deionized water is added in the 500mL round-bottomed flask with mechanical stirring device, logical nitrogen under stirring, it is subsequently adding 0.1g Ammonium persulfate. as initiator, being warming up to polymerization temperature, polymerization temperature is 80 DEG C, keeps reaction 4 hours, reclaim polymerizate after terminating reaction, be about 1500 through measuring the weight average molecular weight of gained copolymer.
Embodiment 5:
Road pavements R ' 3 tons heavy is prepared, its additive prepared with the embodiment 4 that the difference is that only the 0.2 weight % being incorporated as this road pavements gross weight on the basis of the road pavements of embodiment 1 of embodiment 1 according to the operation sequence identical with embodiment 1. According to standard Road Design specification, described material is carried out making, test water reducing ability and water reducer shrinkage ratio as road base layer.
Comparative example 4:
Road pavements R 3 tons heavy is prepared according to the operation sequence identical with embodiment 1 ", its commercially available TH-928 polycarboxylate high performance water-reducing agent that the difference is that only the 0.3 weight % being incorporated as this road pavements gross weight on the basis of the road pavements of embodiment 1 with embodiment 1. TH-928 polycarboxylate high performance water-reducing agent is the water reducer being currently contemplated better performances. According to standard Road Design specification, described material is carried out making, test water reducing ability and water reducer shrinkage ratio as road base layer.
Table 1: the performance comparison of different additives
Compared with conventional water reducer, the water reducer of the present invention makes water reducing ability improve 8%, and yield reduces by 17%, this is reflected in the road pavements that consumption is very big, the consumption of water can be reduced, be greatly improved the intensity of road pavements, enhancing by described water-reducing property, it is possible to obtain high-strength road pavements, it is to avoid the use of cement. Meanwhile, the excellent properties of described water reducer can extend road pavements life-span can up to more than one times, thus greatly extending the service life of road.
Finally it should be noted that, it is clear that, above-described embodiment is only for clearly demonstrating example of the present invention, and is not the restriction to embodiment. For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description. Here without also cannot all of embodiment be given exhaustive. And the apparent change thus amplified out or variation are still among protection scope of the present invention.
Claims (5)
1. a road pavements, based on the gross weight gauge of this road pavements, it comprises the micropowder that 1-15 weight % is active, 20-40 weight % agstone, 40-60 weight % separates prepared earth material and the exciting agent of 0.02-0.08 weight % from building waste;
Also comprising the concrete admixture of 0.05-2 weight % in described road pavements, this concrete admixture is the copolymer by making following monomer (I) and monomer (II) copolymerization obtain:
(I)
Wherein R1For the alkyl of C1-C6, R2For the alkoxyl of C2-C6, n is the integer of 2-10; With
(II) α, beta-unsaturated carboxylic acid or its salt;
Wherein the weight ratio of monomer (I) and (II) is 50-95: 5-50, and the weight average molecular weight of described copolymer is 500-2000.
2. road pavements according to claim 1, wherein this road pavements does not comprise cement, Colophonium or cement concrete.
3. road pavements according to claim 1 and 2, wherein said active micropowder be the following two kinds micropowder (1) and (2) with 1: 3-3: 1 ratio mix and prepare: (1) by by the Rhizoma Begoniae Willsonii in building waste, blue bricks, watt and/or cullet crush, be ground to specific surface area for 750-2200m2The micropowder that/kg obtains; (2) being crushed by flyash, being ground to specific surface area is 800-2600m2The micropowder that/kg obtains.
4. the road pavements according to any one of claim 1-2, wherein said exciting agent is compound bio exciting agent, this compound bio exciting agent be TerraZyme enzyme, β-glucosyl enzym and phosphatase with (10～15): (1～2): the mixture of (2～3) weight ratio.
5. the preparation method of the road pavements according to any one of claim 1-2, the method comprises the following steps: micropowder active for 1-15 weight %, 20-40 weight % agstone, 40-60 weight % separate the exciting agent mix homogeneously of prepared earth material, 0.02-0.08 weight % from building waste, and its order by merging is as follows:
(1) exciting agent of micropowder active for 1-15 weight %, 20-40 weight % agstone and 0.02-0.08 weight % is mixed, be stirred well to uniformly;
(2) mixture that step (1) obtains is mixed with the additive of 0.05-2 weight %; With
(3) mixture step (2) obtained separates prepared earth material mixing with 40-60 weight % from building waste, is stirred well to uniformly.
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| CN104761216B (en) * | 2014-10-17 | 2018-08-14 | 韩先福 | A kind of road pavements and preparation method thereof with the compound electroslag of building waste |
| CN104671720B (en) * | 2015-03-12 | 2016-12-07 | 北京元泰达环保科技有限公司 | Use road filling of building waste and gangue manufacture and preparation method thereof |
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| CN106542769A (en) * | 2016-11-16 | 2017-03-29 | 潍坊学院 | A kind of composite of laying porous pavement |
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| CN112592147B (en) * | 2021-01-24 | 2022-06-24 | 湖南科技大学 | Preparation and construction method of brick-concrete building waste residue regenerated road base inorganic mixture |
| CN113636822A (en) * | 2021-07-19 | 2021-11-12 | 中铁第一勘察设计院集团有限公司 | Improved construction waste roadbed filler using sintered brick micro powder as modifier and method |
| CN114014618B (en) * | 2021-10-13 | 2022-08-30 | 中建八局第二建设有限公司 | Baking-free brick and preparation method thereof |
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| CN101905954A (en) * | 2010-07-20 | 2010-12-08 | 昆明理工大学 | Binding material prepared from construction waste and preparation method thereof |
| CN102408199A (en) * | 2011-08-10 | 2012-04-11 | 青岛建一新材料科技有限公司 | Method for preparing active admixture for concrete and cement by building waste |
| CN103086618A (en) * | 2013-01-22 | 2013-05-08 | 浙江大学宁波理工学院 | Construction waste micro-powder solidifying agent for solidifying soil mass |
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