CN104086131A - Road paving material prepared by compounding building rubbish and limestone flour and preparation method of road paving material - Google Patents
Road paving material prepared by compounding building rubbish and limestone flour and preparation method of road paving material Download PDFInfo
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- CN104086131A CN104086131A CN201410356408.2A CN201410356408A CN104086131A CN 104086131 A CN104086131 A CN 104086131A CN 201410356408 A CN201410356408 A CN 201410356408A CN 104086131 A CN104086131 A CN 104086131A
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- building waste
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- 239000000463 material Substances 0.000 title claims abstract description 174
- 235000019738 Limestone Nutrition 0.000 title claims abstract description 25
- 239000006028 limestone Substances 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 239000010813 municipal solid waste Substances 0.000 title abstract description 13
- 235000013312 flour Nutrition 0.000 title abstract description 4
- 238000013329 compounding Methods 0.000 title abstract 2
- 239000002699 waste material Substances 0.000 claims description 83
- 239000003795 chemical substances by application Substances 0.000 claims description 68
- 239000003595 mist Substances 0.000 claims description 44
- 239000000843 powder Substances 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 35
- 239000000203 mixture Substances 0.000 claims description 30
- 239000011449 brick Substances 0.000 claims description 25
- 239000004567 concrete Substances 0.000 claims description 25
- 239000004568 cement Substances 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 18
- 238000013467 fragmentation Methods 0.000 claims description 16
- 238000006062 fragmentation reaction Methods 0.000 claims description 16
- 239000010881 fly ash Substances 0.000 claims description 9
- 239000006063 cullet Substances 0.000 claims description 8
- 239000011521 glass Substances 0.000 claims description 8
- 239000011295 pitch Substances 0.000 claims description 2
- 239000002689 soil Substances 0.000 abstract description 4
- -1 piling Substances 0.000 description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- 239000000835 fiber Substances 0.000 description 17
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- 150000003839 salts Chemical class 0.000 description 16
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 14
- 238000012360 testing method Methods 0.000 description 14
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- 238000004519 manufacturing process Methods 0.000 description 9
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- 230000008569 process Effects 0.000 description 8
- 239000002994 raw material 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
- 238000011160 research Methods 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
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- 230000008929 regeneration Effects 0.000 description 3
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- 239000007858 starting material Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 2
- 229920010126 Linear Low Density Polyethylene (LLDPE) Polymers 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 238000005452 bending Methods 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
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 2
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- 238000006703 hydration reaction Methods 0.000 description 2
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- 238000007885 magnetic separation Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
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- 229920005646 polycarboxylate Polymers 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
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- 229920005989 resin Polymers 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- WROUWQQRXUBECT-UHFFFAOYSA-N 2-ethylacrylic acid Chemical compound CCC(=C)C(O)=O WROUWQQRXUBECT-UHFFFAOYSA-N 0.000 description 1
- 108010013043 Acetylesterase Proteins 0.000 description 1
- 239000004160 Ammonium persulphate Substances 0.000 description 1
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229920003171 Poly (ethylene oxide) Polymers 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 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
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 description 1
- 235000019395 ammonium persulphate Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 108010047754 beta-Glucosidase Proteins 0.000 description 1
- 102000006995 beta-Glucosidase Human genes 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000004067 bulking agent Substances 0.000 description 1
- 238000012662 bulk polymerization Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 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
- 235000013339 cereals Nutrition 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
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- 238000007334 copolymerization reaction Methods 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
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 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
- 229910001653 ettringite Inorganic materials 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000010528 free radical solution polymerization 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
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 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
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- 239000004571 lime Substances 0.000 description 1
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- 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
- 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
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- 239000002481 rotproofing Substances 0.000 description 1
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- 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
Abstract
The invention discloses a road paving material prepared by compounding building rubbish and limestone flour and a preparation method of the road paving material. Based on the total weight of the road paving material, the road paving material comprises the following components in percentage by weight: 1-15% of active micropowder, 20-40% of limestone flour, 40-60% of a soil material separated from the building rubbish and 0.02-0.08% of an excitant. The road paving material disclosed by the invention satisfies the index requirements of a road and takes good advantages of building rubbish.
Description
Technical field
The present invention relates to a kind of by building waste and the compound urban road laying material making of limestone powder and preparation method thereof.
Background technology
Building waste mainly refers to all kinds of wastes such as earth that construction, unit in charge of construction or individual build, repair, remove all kinds of structures, buildings etc. and carry out producing in house decoraton process, waste residue, mortar.The essentially consist of the building waste that dissimilar building structure produces is consistent, main component comprises earth, the mortar being scattered, waste residue, remaining Steel Concrete pile crown is blocked in bituminous concrete fragment, piling, cement concrete, pick cutter produce masonry, the wrapping material of various scrap metal, timber, all kinds of building material products, wall insulated board, the waste material that fitment process produces and other waste.
Limestone powder main component is calcium carbonate (CaCO
3), lime and Wingdale are used as material of construction in a large number, are also the important source material of many industry.In recent years, developing rapidly of the bases such as water conservancy, traffic, work China Democratic National Construction Association and civilian installation construction, faces the problem that flyash is in short supply gradually, and especially this situation of southwest is more outstanding, and the long distance transportation of flyash will improve concrete production cost.The special one of finding can be drawn materials nearby, the inventor finds by research, limestone powder, because being easy to grinding, low reaction activity, low water demand ratio, can make road concrete have works fine and later strength itself and building waste combination, and can improve concrete early stage wear resistance.
On the other hand, building waste is compared with other municipal wastes, there is the features such as low toxicity, harmless, resourcebility utilization, along with the fast development of urban construction, natural materials will be day by day exhausted, if building waste is carried out to effective regeneration utilization by certain technology, not only can solve this contradiction, can also eliminate the harm of rubbish to environment, realize economic Sustainable development.China is more late to the research of building waste recycle, though obtain certain achievement in research at present, but still lack compared with systematic research, standard and the code of perfect regeneration techniques lacked.In China, building different kinds of roads needs a large amount of materials, if can, by building waste for road engineering, will produce great economic worth.
Simultaneously, the factors such as the standard-required of the diversity of building waste and urban road laying material increasingly stringent, are subject to many limitations the application of building waste in urban road laying material, and for example building waste utilization ratio is not high, in urban road laying material, the shared ratio of building waste is less, etc.
CN1133269A has opened a kind of gelling material for road engineering and other civil engineering and production method, its product is mainly used in requiring other engineering that wear-resisting, corrosion resistant engineering and anti-drying shrinkage are had relatively high expectations, hydration heat is lower, it is characterized in that this product (cement) is by the slag after clearing up in advance processing magnetic separation and slag, flyash, portland cement clinker, mixes containing aluminium sulfate and silicate minerals many kinds of substance grinding.
CN101239804A discloses a kind of method that adopts building waste to manufacture building materials, it sorts successively to urban architecture material, magnetic separation, primary fragmentation and gravitational segregation, building waste is separated into heavy material, light material and mineral materials, and by described mineral materials after secondary breaking for the manufacture of material of construction, the raw material of described material of construction comprises: 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 material of construction is by fibre material, mineral materials and unclassified stores mix, add again low-water cement to mix, stirring pulping adds water, insert vibratory compaction or extrusion forming in mould, after natural curing, form building slab section product.In this patent documentation, only utilize the mineral materials in building waste, the overall utilization ratio of building waste is low, obtain the complex steps of mineral materials, and the ratio at material of construction Minerals material is not high, when even more important, this building waste is for the preparation of plate product, instead of for the preparation of the urban road laying material that intensity, water tolerance are had relatively high expectations.
CN101348343A discloses a kind of building materials that utilize building waste production and preparation method thereof, the technical problem solving be make material configuration simple, reduce costs, it is by the following technical solutions: a kind of building materials that utilize building waste to produce, the weight ratio umber comprising is: building waste 85-97 part, unslaked lime 3-15 part, described building waste comprises masonry and concrete, effective CaO content >=85% in described unslaked lime.The method comprises the following steps: (1) carries out primary election to building waste; (2) comminuted starting materials, is crushed to granularity for being greater than 0 to 4mm by building waste starting material, and the unslaked lime of CaO content >=85% is milled to and is less than 100 orders; (3) starting material coordinate, and the building waste of pulverizing and unslaked lime fine powder are transported to slaking silos by weight building waste 85-97 part, unslaked lime 3-15 part after being mixed evenly, and stop 1-3 hour; (4) moulding, enters stirrer from slaking silos material out, adds after the 5-8% water mix of total dry powder consumption, is delivered to feed bin, is pressed into the section bar of different shape on brick pressing machine, and the pressure of use is 200-1500 ton, 1-3 second clamping time; (5) autoclave curing, is 190-230 DEG C in temperature, and maintenance 6-10 hour under the condition that pressure is 7-10kg, is building materials finished product.In this patent documentation, be mainly used for manufacturing moulding building material product, can not be used as urban road laying material, for example intensity is nowhere near.
WO2006033561A1 discloses a kind of method of building waste sorting.In described method, the building castoff that is ground into predetermined size is joined in the liquid of settling bath, and in groove, be isolated into various components according to proportion, wherein, described liquid has than low but higher than the proportion of the remaining ingredient reference specific gravity of proportion that reclaims component, thereby only makes the component that will reclaim separate by the bottom that is deposited to described settling bath.According to described method, can easily other impurity being included in building castoff be separated with the aggregate reusing of high-quality.Particularly, the reference specific gravity of separating liquid is carried out to suitable adjustment, thereby even can easily the various impurity (tile, common brick, bituminous concrete, cement lumps etc.) heavier than water be separated with the aggregate that can reuse.What the document was mainly paid close attention to is the sorting of building waste.
JP2006257681A discloses a kind of method of utilizing building waste to manufacture mineral material, the method can effectively reduce the volatilization of the volatile organic compounds that building waste produces in the time of pyroprocessing, it contacts with described material the volatile organic compounds producing while adsorbing building waste pyroprocessing by shell being burnt and pulverizing the porousness shell particle producing, thereby makes the more green and safety of the recycling of building waste.The method cost compare is high.
KR100938212B1 discloses a kind of composition for building the road, and said composition comprises that 20-40 % by weight resin, the environmental protection of 22-27 % by weight gather materials, 22-27 % by weight recirculation chip material, 13-18 weight filler, 1.5-5 weight pigment and and 1.5-3 % by weight common additives.Said composition cost contains a large amount of resins, and cost compare is high and not ageing-resistant, in addition owing to lacking cement component, and at least intensity wretched insufficiency.
Non-patent literature " experimental study that construction refuse regenerated micro mist utilizes ", Ma Chuntao etc., Ningxia engineering, the 8th the 1st phase of volume, the method of manufacture and use thereof of construction refuse regenerated micro mist is disclosed in March, 2009, wherein the raw material of regenerative micro powder is in the processes such as regenerative bone material by concrete fragmentation, screening, inevitably can produce the fine powder material that accounts for regeneration aggregate quality 10% left and right, particle diameter < 0.16mm, and the high specific surface-area that grinds acquisition micro mist is only 735.4m
2/ kg.
Need a kind of urban road laying material with building waste compound lime stone flour, make the utilization ratio of building waste and limestone powder high, and the performance of this urban road laying material can reach the performance of current urban road laying material used, further, can make road concrete there is works fine and later strength, and can improve concrete early stage wear resistance.
Summary of the invention
In order to overcome the above-mentioned problems in the prior art, the inventor is through further investigation, a kind of new solution has been proposed, the main raw material that makes urban road laying material is building waste and limestone powder, and the urban road laying material property that can make building waste and limestone powder obtain fully utilizing, preparing completely can be up to standard.The invention provides following technical scheme:
On the one hand, a kind of urban road laying material is provided, gross weight meter based on this urban road laying material, it comprises the activated micro mist of 1-15 % by weight tool, 20-40 % by weight limestone powder, 40-60 % by weight separates the earth material making from building waste, and the exciting agent of 0.02-0.08 % by weight.
The content of the activated micro mist of tool extracting in described building waste is preferably 5-10 % by weight, more preferably 8-10 % by weight.
The content of described limestone powder is preferably 20-30 % by weight, more preferably 20-25 % by weight.
The described content that separates the earth material making from building waste is preferably 40-55 % by weight, more preferably 40-50 % by weight.
The content of described exciting agent is preferably 0.02-0.06 % by weight, more preferably 0.03-0.05 % by weight.
Described urban road laying material does not preferably comprise cement, pitch or cement concrete.
The activated micro mist of described tool can by by the common brick in building waste, blue bricks, watt and/or glass cullet fragmentation, grind and obtain.
The activated micro mist of described tool be following two kinds of micro mists (1) and (2) taking 1: 3-3: 1 ratio is mixed and made: (1) by by the common brick in building waste, blue bricks, watt and/or glass cullet fragmentation, be ground to specific surface area as 750-2200m
2/ kg, preferably 1000-2200m
2/ kg, more preferably 1500-2200m
2the micro mist that/kg obtains; (2) by flyash fragmentation, to be ground to specific surface area be 800-2600m
2/ kg, preferably 1200-2600m
2/ kg, more preferably 1800-2600m
2the micro mist that/kg obtains.。
Described earth material can be soil and the great soil group impurity of separating from building waste.
Described exciting agent can be compound bio exciting agent, can also be bases exciting agent and/or salt exciting agent.
In the existing regenerative micro powder preparation taking building waste as raw material, its raw material adopting is all that waste concrete is prepared the thin particulate matter producing in aggregate substantially, and the micro mist of preparation is difficult to obtain larger specific surface area.More it is pointed out that in existing regenerative micro powder taking building waste as raw material preparation, for the building or the urban road laying material that make to make meet the demands, only substitute part of cement in concrete material with regenerative micro powder, and place of cement completely.
The beat all discovery of the inventor, by by the common brick in building waste, blue bricks, watt and/or glass cullet carry out fragmentation, grinding, can obtain the very excellent micro mist of performance of high surface area, it has exceeded cement at some aspect of performance after being excited by exciting agent of the present invention, make it possible to substitute completely common cement used in urban road laying material, and can reach the desired performance index of urban road laying simultaneously.Infer its reason, may be because the concrete in building waste and common brick in building waste, blue bricks, watt and/or glass cullet compared with, water-absorbent is large, intensity is lower, fragility is larger, and these features cause the micro mist of being prepared by regenerated waste concrete to be difficult to substitute completely the cement in urban road laying material.By contrast, brick powder is used as urban road laying material in the time of reaction, the SiO in chemical constitution
2and Al
2o
3such as calcium hydroxide reaction of component in isoreactivity component and exciting agent, generates the products such as hydrated calcium silicate, drated calcium aluminate or hydrated calcium aluminate sulfate, thereby forms cement strength.
The inventor also finds, the specific surface area of the activated micro mist of tool (1) is only at 750-2200m
2the substitution effect that can effectively bring into play cement in the scope of/kg, makes urban road laying material obtain required ultimate compression strength.When the specific surface area of micro mist is less than 750m
2when/kg, the lateral reactivity of this micro mist is inadequate, for example, make ultimate compression strength, the resistance to cleavage deficiency of road.Be greater than 2200m and work as specific surface area
2when/kg, performance improves no longer significantly and preparation cost increase.By contrast, in the time using discarded concrete to carry out the grinding of micro mist, because its water-absorbent is large, be easy to cause humidity, and due to complicated component, comprise certain proportion and be difficult to the sand grains grinding, even be also difficult to obtain 500m by grinding
2specific surface area more than/kg, the feature such as described water-absorbent is large in addition, intensity is low, causes only can substituting the cement of finite part in urban road laying material.Common brick in the present invention, blue bricks, watt and/or the grinding of glass cullet can under grinding medium exists, carry out.Described grinding can be carried out under grinding medium exists, described grinding medium be preferably zirconium silicate ball and the blending agent of yttrium stable zirconium oxide ball.
Equally, the specific surface area of finding the activated micro mist of tool (2) is only at 800-2600m
2in the scope of/kg, can effectively make road concrete there is works fine and later strength and early stage wear resistance.
In construction rubbish, common brick, blue bricks and tile account for approximately 7.0 % by weight of refuse composition, and in dismounting rubbish, common brick accounts for approximately 5 % by weight of refuse composition, in building waste, also have many unhydrated cement, these are all for the preparation of micro mist of the present invention provides sufficient source.
About building waste component, remove the component of rubbish from old building, concrete proportion, up to more than 50%, is secondly earth (approximately 10%), stone and rubble (approximately 10%) etc.; From the component of New Buildings construction rubbish, earth ratio more than 30%, is approximately secondly stone and rubble (approximately 25%), concrete (approximately 20%) etc.These provide sufficient source for earth material in urban road laying material of the present invention.
In urban road laying material of the present invention, exciting agent can be compound bio exciting agent, can be also bases exciting agent and/or salt exciting agent.
Described compound bio exciting agent can be TerraZyme enzyme, beta-glucosidase enzyme and Phosphoric acid esterase with (10～15): (1～2): the mixture of (2～3) weight ratio.
By the combination of these 3 kinds of enzymes, can make it find mutual promoting action.In the time using the urban road laying material of described compound bio exciting agent to be used as base material, significantly performance, resistance to compression and anti-bending rollering modulus are drawn in unconfined compression strength, bending resistance, especially can make unconfined compression strength for example, with respect to the described urban road laying material that does not add described compound bio exciting agent or use single creature exciting agent (TerraZyme enzyme), can improve at least about 17%.Compound bio exciting agent of the present invention can also increase the stability of paver, has extended the life-span of road, and can, in long-term existence basic unit, can keep for a long time solidification effect.
In urban road laying material of the present invention, about described bases exciting agent and/or salt exciting agent, be preferably the combination of bases exciting agent and salt exciting agent, i.e. compound activator.It is mainly the OH that increases slurry that alkali excites
-concentration. improve liquid phase basicity, make the pH value of liquid phase keep about 12 left and right, this is conducive to formation and the C of ettringite
3s, C
2the raising of S hydration rate, thus excite the activity of micro mist in urban road laying material.
In addition, by flyash fragmentation, to be ground to specific surface area be 800-2600m
2the micro mist that/kg obtains by with aforementioned common brick, blue bricks, watt and/or glass cullet fragmentation, to be ground to specific surface area be 750-2200m
2the micro mist phase grating that/kg obtains, the two can play mutually collaborative promoter action, the micro mist for example being obtained by flyash can make by common brick, blue bricks, watt and/or the excitation rate of the micro mist that obtains of glass cullet improve nearly one times.
Described exciting agent can be compound bio exciting agent, also can be preferably bases exciting agent and/or salt exciting agent.The inventor also finds, may be difficult to make urban road laying material to reach the most desirable requirement by single alkali-activator, and the matching of exciting agent and other material is poor, and the stability of urban road laying material is undesirable.The inventor, through large quantity research and test, seeks the optimum matching relation of compound activator and described micro mist and earth class raw material, and final discovery also preferably adds a certain amount of salt exciting agent conventionally.
Described compound activator is the composition of bases exciting agent A and salt exciting agent B, and the weight ratio of exciting agent A and B is 2: 1-6: 1; Bases exciting agent A is the gross weight meter 20-30 % by weight Ca (OH) based on bases exciting agent A
2, 10-20 % by weight NaOH, 20-40 % by weight Na
2cO
3with 20-30 % by weight Na
2siO
39H
2the mixture of O; Salt exciting agent B is the gross weight meter 20-40 % by weight Na based on salt exciting agent B
2sO
4, 20-30 % by weight CaSO
42H
2o, 10-20 % by weight CaCl
2with 20-30 % by weight Ca
2sO
4mixture.
This urban road laying material can also comprise the lumber fibre material of 1-5 % by weight from modification and the enhancing of building waste, and the lumber fibre material of wherein said modification and enhancing makes by the following method:
(1) be cut into by short the culled wood in building waste the segment materials that maximum diameter is 0.5-2cm;
(2) short segment materials of cutting is placed in stirred pot, add the aqueous solution of surface-modifying agent, stir evenly, the mass ratio of segment materials and surface-modifying agent is 200: 1-500: 1, described surface-modifying agent is polyvinylpolypyrrolidone, and in solution, the concentration of polyvinylpolypyrrolidone is 20-30 % by weight;
(3) in the segment materials after surface modification, add polyethylene powders, polypropylene powder or its mixture, mix, the surface attachment polyethylene powders, polypropylene powder or its mixture that make segment materials, the mass ratio of described segment materials and polyethylene, polypropylene or its mixture is 10: 1-100: 1;
(4) compound step (3) being obtained is at 110 DEG C-220 DEG C, and preferably 120 DEG C-180 DEG C, more preferably thermal treatment 30-60 minute under the condition of 130-170 DEG C, is cooled to the lumber fibre material that obtains modification and enhancing after room temperature.
Described timber segment materials and polyethylene powders, the appropriate mass ratio of polypropylene powder or its mixture, make after thermal treatment, the polyethylene of hot melt and/or polypropylene can be coated the surface of timber fragment just substantially completely, if described amount of polymeric material is less, can not cover the surface of timber fragment completely, making timber segment materials in as roadbed material use procedure, be easy to degraded for example rots, if and described amount of polymeric material is excessive, aspect cost, not effective, and make for example toughness of performance and the some strength of timber itself be 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, for example in decoration garbage, comprise the wood type building waste of significant proportion, all be not fully used, incinerated often, not only effectively do not utilize it to be worth, also caused serious environmental pollution.For this problem, the inventor finds through research, by according to the method described above timber being carried out to modification and enhancing, particularly advantageously in the steady layer of water, the basic unit etc. used as road.Generally understanding is in the past that timber is easy to rot, and particularly, in the environment that has water to exist, is difficult to be used in urban road laying material, is more difficult to be used in the steady layer of water.In the present invention, by it is carried out to modification and enhancement process, make it have enough water tolerance, even if it is used in the steady layer of water, basic unit etc. in urban road laying simultaneously, can be because the effect of light causes material modified aging yet.
Described polyethylene, polypropylene or its mixture are preferably from the plastic waste in rubbish.Preferably polyethylene, more preferably linear low density polyethylene (LLDPE).Known in the art, the for example plastic waste (as various waste plastic bottles) in building waste of rubbish is mainly linear low density polyethylene (LLDPE), it has that intensity is high, good toughness, rigidity are strong, heat-resisting, cold-resistant, good chemical stability, also there is the good performance such as resisting environmental stress and cracking, tear-resistant intensity, and can acid-and base-resisting, organic solvent etc.The inventor is through further investigation discovery, and in described these performances and roadbed material, desired material property is very identical, therefore preferably uses and from the polyethylene of the plastic waste in rubbish, lumber fibre material is strengthened.The lumber fibre material obtaining by the inventive method has not only further strengthened the toughness of lumber fibre itself, and high strength, high rigidity, high heat-resisting, high cold-resistant, the such desired properties of high chemical stability are also provided.The plastic waste of the polyethylene material in building waste is ground into powder can be used in described method.
What form therewith sharp contrast is, all the time, even culled wood is recycled, also normally timber is carried out to rotproofing, but this need to use sanitas, sanitas is the salt such as chromic salt, borate, cupric arsenate normally, if be used in urban road laying material, can cause very serious environmental pollution, for example soil pollution.
In addition, in lumber fibre modifying process of the present invention, for surface physics and the chemical structure of timber, in the Interfacial compatibilization agent using, filter out polyvinylpolypyrrolidone as Interfacial compatibilization agent from a large amount of other fields, polyvinylpolypyrrolidone has the side group of polarity and hydrophobic main chain, can contact with polyethylene (or polypropylene) with timber respectively, play the compatibilization that reduces interfacial tension, the use of this polymer bulking agents, avoid expanding material migration in use, be conducive to give play to stable compatibilization effect, be conducive to guarantee the stability of matrix material simultaneously.Polyvinylpolypyrrolidone is mixed with to solution, and preferably aqueous solution uses, and method is easy, not with an organic solvent, and then also has the good feature of environmental protection.
The invention still further relates to the preparation method of above-mentioned urban road laying material, the method comprises the following steps: by the activated micro mist of 1-15 % by weight tool, 20-40 % by weight limestone powder, 40-60 % by weight from building waste, separate the earth material making, the exciting agent of 0.02-0.08 % by weight mixes, its order by merging is as follows:
(1) exciting agent of the activated micro mist of 1-15 % by weight tool, 20-40 % by weight limestone powder and 0.02-0.08 % by weight is mixed, be stirred well to evenly;
(2) mixture step (1) being obtained separates with 40-60 % by weight the earth material making from building waste to be mixed, and is stirred well to evenly.
Preferably, said method comprising the steps of: by the activated micro mist of 1-15 % by weight tool, 20-40 % by weight limestone powder, 40-60 % by weight separates the earth material making from building waste, exciting agent with 0.02-0.08 % by weight, and optionally 1-5 % by weight mixes from the admixture of the modification of building waste and the lumber fibre material of enhancing and optional 0.01-2 % by weight, its order by merging is as follows:
(1) exciting agent of the activated micro mist of 1-15 % by weight tool, 20-40 % by weight limestone powder and 0.02-0.08 % by weight is mixed, be stirred well to evenly;
(2) mixture optionally step (1) being obtained mixes from the admixture of the modification of building waste and the lumber fibre material of enhancing and 0.01-2 % by weight with optional 1-5 % by weight; With
(3) mixture step (2) being obtained separates with 40-60 % by weight the earth material making from building waste to be mixed, and is stirred well to evenly.
The inventor finds, reinforcedly with common in prior art time compare with the method for mixing, exciting agent more can excite the activity of micro mist, its reason is mainly, if low-down ratio exciting agent is mixed with the very large earth material of ratio in initial mixing step, easily wrapped up by earth material, thereby make it be difficult to contact with micropowder material; In addition, the general granularity of limestone powder is thinner and fine and close, can in initial step, mix with activate micro powder and exciting agent, and can improve the density of compound.
In a preferred embodiment, the timber sorting out in building waste separation step process can be used as the raw material of the lumber fibre material of modification and enhancing, and the method for being prepared the lumber fibre material of modification and enhancing by described timber comprises the following steps:
(1) be cut into by short the culled wood in building waste the segment materials that maximum diameter is 0.5-2cm;
(2) short segment materials of cutting is placed in stirred pot, add the aqueous solution of surface-modifying agent, stir evenly, the mass ratio of segment materials and surface-modifying agent is 200: 1-500: 1, described surface-modifying agent is polyvinylpolypyrrolidone, and in solution, the concentration of polyvinylpolypyrrolidone is 20-30 % by weight;
(3) in the segment materials after surface modification, add polyethylene powders, polypropylene powder or its mixture, mix, the surface attachment polyethylene powders, polypropylene powder or its mixture that make segment materials, the mass ratio of described segment materials and polyethylene, polypropylene or its mixture is 10: 1-100: 1;
(4) compound step (3) being obtained is at 110 DEG C-220 DEG C, and preferably 120 DEG C-180 DEG C, more preferably thermal treatment 30-60 minute under the condition of 130-170 DEG C, is cooled to the lumber fibre material that obtains modification and enhancing after room temperature.
Certainly, those skilled in the art can will be appreciated that, if the amount of the polyethylene powders that the timber in building waste, plastic waste obtain can not meet the demand of batching, also optionally can obtain from other refuse process field.
In a further preferred embodiment, in urban road laying material of the present invention, can also comprise 0.01-5 % by weight, preferably the concrete admixture of 0.05-2 % by weight.
Concrete admixture of the present invention preferably comprises or by the multipolymer that following monomer (I) and monomer (II) copolymerization are obtained:
Wherein R
1for the alkyl of C1-C6, for example ethyl, R
2for example, for the alkoxyl group of C2-C6, oxyethyl group, the integer that n is 2-10; With
(II) α, beta-unsaturated carboxylic acid or its salt;
Wherein monomer (I) and weight ratio (II) are 50-95: 5-50, and the weight-average molecular weight of described multipolymer is 500-2000.
In described structure, the existence that repeats ethoxy unit has further strengthened the concrete water-reducing property of making.
Most preferably, described α, beta-unsaturated carboxylic acid has following chemical structural formula:
Find by replacing with F in phenyl ring contraposition, can further strengthen the water-reducing property of multipolymer, thereby can in urban road laying material, add the described admixture that is low to moderate 0.01 % by weight just can realize required water-reducing property.
This admixture polymkeric substance or its analogue with excellent water-reducing property of the present invention not yet has report.
Polymerization process can adopt the polymerization process of this area routine to carry out, for example mass polymerization, solution polymerization, emulsion polymerization or suspension polymerization.
The inventor finds through research, by adding such admixture, can provide excellent water-reducing property, prevent that the mobility of urban road laying material is along with the time reduces, be very beneficial for constructing in urban road laying, and make it possible to effectively avoid the use of cement, road intensity is high.
Embodiment
By following specific embodiment and comparative example, further describe the present invention, but embodiment is only for explanation, can not limit the scope of the invention.
In the present invention, properties test can be carried out with reference to following standard: 1, GB/T 1346 " cement normal consistency water consumption, time of coagulation, the stability method of inspection "; 2, GB/T 17671-1999 " Test method for strength of hydraulic cement mortar "; 3, cement water reducing agent quality standard and test method JGJ 56-84; 4, GB 8076-2008; 5, JTGE51-2009 highway stabilized with inorganic binder testing of materials code; With 6, the Ministry of Communications's " highway road surface construction technique normalizing " of issuing.
Embodiment 1
The urban road laying material of 3 tons of weights of preparation, gross weight meter based on this urban road laying material, it comprises the activated micro mist of approximately 14 % by weight tool, approximately 25.95 % by weight limestone powders, approximately 60 % by weight separate the earth material making from building waste, and the exciting agent of approximately 0.05 % by weight.Wherein, the activated micro mist of described tool by jaw crusher and shredder by common brick fragmentation, grinding in building waste, the specific surface area of the micro mist of acquisition is 2000m
2/ kg, by jaw crusher and shredder by flyash fragmentation, grinding, the specific surface area of the micro mist of acquisition is 2100m
2/ kg, mixes the two with the weight ratio of 1: 1; Described earth material is the soil of separating from building waste, is mainly the earth that engineering construction produces; Described limestone powder is the limestone powder from Peng Xuan mineral products processing factory; Exciting agent is the composition of bases exciting agent A and 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 meter 30 % by weight Ca (OH) based on bases exciting agent A
2, 10 % by weight NaOH, 30 % by weight Na
2cO
3with 30 % by weight Na
2siO
39H
2the mixture of O; Salt exciting agent B is the gross weight meter 30 % by weight Na based on salt exciting agent B
2sO
4, 25 % by weight CaSO
42H
2o, 15 % by weight CaCl
2with 30 % by weight Ca
2sO
4mixture.
In described urban road laying material preparation process, first exciting agent is fully mixed in agitator with micro mist and limestone powder, then with dregs material mixing.According to standard Road Design specification, get a certain amount of described material, make the test specimen of Φ × h=10cm × 10cm, test its 28d unconfined compression strength.Through measuring, the intensity of its 28d, up to 1.82MPa, meets the requirement of strength (0.8MPa) of advanced road roadbed embankment material completely.
Comparative example 1
Prepare the urban road laying material of 3 tons of weights according to the schedule of operation identical with embodiment 1, the difference of itself and embodiment 1 is only common brick fragmentation, grinding the micro mist obtaining, the specific surface area of weight such as to use be about 500m
2the building refuse concrete fragmentation of/kg, the micro mist that grinding obtains substitute.According to standard Road Design specification, get a certain amount of described material, make the test specimen of Φ × h=10cm × 10cm, test its 28d unconfined compression strength according to the method identical with embodiment 1.Through measuring, the intensity of its 28d is 0.79MPa, does not meet the requirement of strength of advanced road roadbed embankment material.
Comparative example 2
Prepare the urban road laying material of 3 tons of weights according to the schedule of operation identical with embodiment 1, the specific surface area that the difference of itself and embodiment 1 is only common brick fragmentation, grind the micro mist obtaining is 500m
2/ kg, the specific surface area of the micro mist that flyash fragmentation, grinding obtain is 600m
2/ kg.According to standard Road Design specification, get a certain amount of described material, make the test specimen of Φ × h=10cm × 10cm, test its 28d unconfined compression strength according to the method identical with embodiment 1.Through measuring, the intensity of its 28d is 0.75MPa, does not meet the requirement of strength of advanced road roadbed embankment material.
Comparative example 3
Prepare the urban road laying material of 3 tons of weights according to the schedule of operation identical with embodiment 1, the difference of itself and embodiment 1 is only not use salt exciting agent B, and it such as uses to substitute at bases exciting agent A of weight.According to standard Road Design specification, get a certain amount of described material, make the test specimen of Φ × h=10cm × 10cm, test its 28d unconfined compression strength according to the method identical with embodiment 1.Through measuring, the intensity of its 28d is 0.81MPa, meets reluctantly the requirement of strength of advanced road roadbed embankment material.
Embodiment 2
The preparation of the lumber fibre material of modification and enhancing
(1) be the segment materials that 0.5-2cm does not wait by short the culled wood in the building waste maximum diameter that is cut into;
(2) short segment materials of cutting is placed in stirred pot, adds the polyvinylpolypyrrolidone aqueous solution of 25 % by weight, stir with agitator, the mass ratio of segment materials and surface-modifying agent is 300: 1;
(3) in the segment materials after surface modification, add polyethylene powders, fully mix, make it even, make the surface attachment polyethylene powders of segment materials, described segment materials and poly mass ratio are 80: 1;
(4) compound step (3) being obtained thermal treatment 45 minutes under the condition of 135 DEG C, is cooled to the lumber fibre material that obtains modification and enhancing after room temperature.
Embodiment 3
Prepare the urban road laying material of 3 tons of weights according to the schedule of operation identical with embodiment 1, the difference of itself and embodiment 1 is only to be incorporated as modification that the embodiment 2 of 3 % by weight of the urban road laying material gross weight of embodiment 1 makes and the lumber fibre material of enhancing on the basis of the urban road laying material of embodiment 1.According to standard Road Design specification, get a certain amount of described material, make the test specimen of Φ × h=10cm × 10cm, test its 28d unconfined compression strength according to the method identical with embodiment 1.Through measuring, the intensity of its 28d is 2.31MPa, and unconfined compression strength intensity improves 27%, meets the requirement of strength of advanced road roadbed embankment material completely, and meets the unconfined compression strength requirement of motorway.
Embodiment 4: the preparation of admixture
The chemical structural formula of monomer (I) is:
Wherein R
1for ethyl, R
2oxyethyl group, n is 5, this monomer can be by polyoxyethylene glycol and ethylacrylic acid are carried out to esterification, then esterification products is eliminated to react according to routine with oxyethyl group chlorine make according to conventional esterification process, or can directly be purchased from Sigma-Aldrich company;
The chemical structural formula of monomer (II) is:
this monomer is commercially available from Solution on Chemical Reagents in Shanghai company;
Adopt emulsion polymerization, in round-bottomed flask to 500mL with mechanical stirring device, add 80g monomer (I) and 10g monomer (II) and 200mL deionized water, stir lower logical nitrogen, then add 0.1g ammonium persulphate as initiator, be warming up to polymerization temperature, polymerization temperature is 80 DEG C, keeps reaction 4 hours, finishing to reclaim polymerisate after reaction, is approximately 1500 through the weight-average molecular weight of measuring gained multipolymer.
Embodiment 5:
Prepare the urban road laying material R ' of 3 tons of weights according to the schedule of operation identical with embodiment 1, the difference of itself and embodiment 1 is only to be incorporated as on the basis of the urban road laying material of embodiment 1 admixture that the embodiment 4 of 0.2 % by weight of this urban road laying material gross weight makes.According to standard Road Design specification, carry out making using described material as road base layer, test water reducing ability and water reducer shrinkage ratio.
Comparative example 4:
Prepare the urban road laying material R of 3 tons of weights according to the schedule of operation identical with embodiment 1 ", the difference of itself and embodiment 1 is only to be incorporated as the commercially available TH-928 polycarboxylate high performance water-reducing agent of 0.3 % by weight of this urban road laying material gross weight on the basis of the urban road laying material of embodiment 1.TH-928 polycarboxylate high performance water-reducing agent is to think at present the water reducer of better performances.According to standard Road Design specification, carry out making using described material as road base layer, test water reducing ability and water reducer shrinkage ratio.
Table 1: the performance comparison of different admixtures
Compared with conventional water reducer, water reducer of the present invention makes water reducing ability improve 8%, and yield reduces by 17%, this is reflected in the very large urban road laying material of consumption, can reduce the consumption of water, greatly improve the intensity of urban road laying material, by the enhancing of described water-reducing property, can obtain high-strength urban road laying material, avoid the use of cement.Meanwhile, the life-span that the excellent properties of described water reducer can extend urban road laying material can reach more than one times, thereby greatly extends the work-ing life of road.
Finally it should be noted that obviously above-described embodiment is only for example of the present invention is clearly described, and the not 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 giving exhaustive to all embodiments.And the apparent variation of being amplified out thus or variation are still among protection scope of the present invention.
Claims (5)
1. a urban road laying material, gross weight meter based on this urban road laying material, it comprises the activated micro mist of 1-15 % by weight tool, 20-40 % by weight limestone powder, 40-60 % by weight separates the earth material making from building waste, and the exciting agent of 0.02-0.08 % by weight.
2. urban road laying material according to claim 1, wherein this urban road laying material does not comprise cement, pitch or cement concrete.
3. urban road laying material according to claim 1 and 2, the activated micro mist of wherein said tool be following two kinds of micro mists (1) and (2) taking 1: 3-3: 1 ratio is mixed and made: (1) by by the common brick in building waste, blue bricks, watt and/or glass cullet fragmentation, be ground to specific surface area as 750-2200m
2the micro mist that/kg obtains; (2) by flyash fragmentation, to be ground to specific surface area be 800-2600m
2the micro mist that/kg obtains.
4. according to the urban road laying material described in any one in claim 1-3, wherein said exciting agent is compound bio exciting agent.
5. the preparation method of the urban road laying material described in any one in claim 1-4, the method comprises the following steps: by the activated micro mist of 1-15 % by weight tool, 20-40 % by weight limestone powder, 40-60 % by weight from building waste, separate the earth material making, the exciting agent of 0.02-0.08 % by weight mixes, its order by merging is as follows:
(1) exciting agent of the activated micro mist of 1-15 % by weight tool, 20-40 % by weight limestone powder and 0.02-0.08 % by weight is mixed, be stirred well to evenly;
(2) mixture step (1) being obtained separates with 40-60 % by weight the earth material making from building waste to be mixed, and is stirred well to evenly.
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| CN112592147A (en) * | 2021-01-24 | 2021-04-02 | 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 |
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| CN104761216A (en) * | 2014-10-17 | 2015-07-08 | 韩先福 | Road paving material prepared from recombination of construction waste and electric furnace slag and preparation method thereof |
| CN104773977A (en) * | 2014-10-17 | 2015-07-15 | 韩先福 | Road paving material prepared by compounding residue soil with cola gangue powder and preparation method thereof |
| CN104773977B (en) * | 2014-10-17 | 2016-11-09 | 韩先福 | A kind of dregs road pavements being combined colliery powder and preparation method thereof |
| 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 |
| CN104671720A (en) * | 2015-03-12 | 2015-06-03 | 北京元泰达环保建材科技有限责任公司 | Road filling material prepared from building waste and coal gangue and preparation method of road filling material |
| 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 |
| CN107814497A (en) * | 2016-09-13 | 2018-03-20 | 黄忠信 | Binder, method for producing cured mortar, and cured mortar produced by the method |
| CN106542769A (en) * | 2016-11-16 | 2017-03-29 | 潍坊学院 | A kind of composite of laying porous pavement |
| CN112341025A (en) * | 2020-10-23 | 2021-02-09 | 山东鲁桥建材有限公司 | Regenerated micro-powder admixture, preparation method thereof and application thereof as cement substitute |
| CN112592147A (en) * | 2021-01-24 | 2021-04-02 | 湖南科技大学 | Preparation and construction method of brick-concrete building waste residue regenerated road base inorganic mixture |
| 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 |
| CN114014618A (en) * | 2021-10-13 | 2022-02-08 | 中建八局第二建设有限公司 | Baking-free brick and preparation method thereof |
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