CN1128772C - 全砂土固结充填材料、生产及使用方法 - Google Patents
全砂土固结充填材料、生产及使用方法 Download PDFInfo
- Publication number
- CN1128772C CN1128772C CN99106222A CN99106222A CN1128772C CN 1128772 C CN1128772 C CN 1128772C CN 99106222 A CN99106222 A CN 99106222A CN 99106222 A CN99106222 A CN 99106222A CN 1128772 C CN1128772 C CN 1128772C
- Authority
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- China
- Prior art keywords
- filler
- concretion
- sandy soil
- slag
- filling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000002689 soil Substances 0.000 title claims abstract description 46
- 239000000945 filler Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 title abstract description 9
- 239000002893 slag Substances 0.000 claims abstract description 42
- 239000004576 sand Substances 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 34
- 239000010440 gypsum Substances 0.000 claims abstract description 18
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 18
- 239000002002 slurry Substances 0.000 claims abstract description 11
- 239000004927 clay Substances 0.000 claims abstract description 10
- 239000000654 additive Substances 0.000 claims abstract description 7
- 230000000996 additive effect Effects 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000000292 calcium oxide Substances 0.000 claims abstract description 3
- 238000005086 pumping Methods 0.000 claims abstract description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 16
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 16
- 239000004571 lime Substances 0.000 claims description 16
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 9
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical compound [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 claims description 8
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 claims description 5
- 150000004683 dihydrates Chemical class 0.000 claims description 5
- -1 vitriol Chemical compound 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 claims description 3
- 238000009835 boiling Methods 0.000 claims description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 3
- 239000004327 boric acid Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 235000009508 confectionery Nutrition 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 2
- 239000000920 calcium hydroxide Substances 0.000 claims description 2
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 2
- 235000012255 calcium oxide Nutrition 0.000 claims description 2
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 claims description 2
- 230000005484 gravity Effects 0.000 claims description 2
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 2
- 238000002156 mixing Methods 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 239000011435 rock Substances 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 238000004537 pulping Methods 0.000 claims 4
- 150000001875 compounds Chemical class 0.000 claims 2
- 206010004637 Bile duct stone Diseases 0.000 claims 1
- 239000006227 byproduct Substances 0.000 claims 1
- 238000005056 compaction Methods 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 238000007596 consolidation process Methods 0.000 abstract 2
- 235000019738 Limestone Nutrition 0.000 abstract 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract 1
- 239000006028 limestone Substances 0.000 abstract 1
- 239000004568 cement Substances 0.000 description 13
- 230000006835 compression Effects 0.000 description 8
- 238000007906 compression Methods 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000001110 calcium chloride Substances 0.000 description 4
- 229910001628 calcium chloride Inorganic materials 0.000 description 4
- 239000011149 active material Substances 0.000 description 3
- 229910052925 anhydrite Inorganic materials 0.000 description 3
- 239000010881 fly ash Substances 0.000 description 3
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 235000013379 molasses Nutrition 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 229910052938 sodium sulfate Inorganic materials 0.000 description 2
- 235000011152 sodium sulphate Nutrition 0.000 description 2
- 229940095064 tartrate Drugs 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000003643 water by type Substances 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
Description
编号 | 砂中含土% | 灰砂比 | 加水泥% | 每立方用水泥KG/M3 | 浓度% | 抗压强度(Mpa) | ||
3天 | 7天 | 28天 | ||||||
1 | 5 | 25.7 | 3 | 60.5 | 80 | 0.1 | 0.14 | 0.32 |
2 | 10 | 25.7 | 3 | 60.5 | 80 | 0.16 | 0.28 | 0.48 |
3 | 15 | 25.7 | 3 | 60.5 | 80 | 0.26 | 0.34 | 0.56 |
4 | 20 | 25.7 | 3 | 60.5 | 80 | 0.34 | 0.44 | 0.66 |
5 | 25 | 25.7 | 3 | 60.5 | 80 | 0.36 | 0.45 | 0.5 |
6 | 30 | 25.7 | 3 | 60.5 | 80 | 0.32 | 0.40 | 0.48 |
7 | 40 | 25.7 | 3 | 60.5 | 80 | 0.30 | 0.41 | 0.45 |
8 | 50 | 25.7 | 3 | 60.5 | 80 | 0.28 | 0.38 | 0.46 |
编号 | 砂中含土% | 灰砂比 | 固化剂% | 每立方用料KG/M3 | 浓度% | 抗压强度(Mpa) | |||
3天 | 7天 | 28天 | 60天 | ||||||
1 | 5 | 25.7 | 3 | 60.5 | 80 | 0.15 | 0.26 | 0.4 | 0.96 |
2 | 10 | 25.7 | 3 | 60.5 | 80 | 0.22 | 0.35 | 0.96 | 1.44 |
3 | 15 | 25.7 | 3 | 60.5 | 80 | 0.26 | 0.7 | 1.1 | 1.6 |
4 | 20 | 25.7 | 3 | 60.5 | 80 | 0.3 | 0.8 | 1.22 | 1.65 |
5 | 25 | 25.7 | 3 | 60.5 | 80 | 0.32 | 0.82 | 1.25 | 1.73 |
6 | 30 | 25.7 | 3 | 60.5 | 80 | 0.32 | 0.83 | 1.31 | 1.87 |
7 | 40 | 25.7 | 3 | 60.5 | 80 | 0.34 | 0.85 | 1.33 | 1.9 |
8 | 50 | 25.7 | 3 | 60.5 | 80 | 0.37 | 0.88 | 1.36 | 1.9 |
编号 | 砂中含土% | 灰砂比 | 固化剂% | 每立方用料KG/M3 | 浓度% | 抗压强度(Mpa) | |||
3天 | 7天 | 28天 | 60天 | ||||||
1 | 5 | 25.7 | 3 | 60.5 | 80 | 0.17 | 0.33 | 0.47 | 0.88 |
2 | 15 | 25.7 | 3 | 60.5 | 80 | 0.3 | 0.79 | 1.32 | 1.56 |
3 | 30 | 25.7 | 3 | 60.5 | 80 | 0.41 | 0.98 | 1.48 | 1.92 |
4 | 50 | 25.7 | 3 | 60.5 | 80 | 0.42 | 0.95 | 1.46 | 1.9 |
编号 | 砂中含土% | 灰砂比 | 固化剂% | 每立方用料KG/M3 | 浓度% | 抗压强度(Mpa) | |||
3天 | 7天 | 28天 | 60天 | ||||||
1 | 5 | 25.7 | 3 | 60.5 | 80 | 0.18 | 0.35 | 0.45 | 0.98 |
2 | 15 | 25.7 | 3 | 60.5 | 80 | 0.28 | 0.77 | 1.2 | 1.66 |
3 | 30 | 25.7 | 3 | 60.5 | 80 | 0.4 | 0.88 | 1.64 | 2 |
4 | 50 | 25.7 | 3 | 60.5 | 80 | 0.38 | 0.85 | 1.56 | 1.95 |
编号 | 砂中含土% | 灰砂比 | 固化剂% | 每立方用料KG/M3 | 浓度% | 抗压强度(Mpa) | |||
3天 | 7天 | 28天 | 60天 | ||||||
1 | 5 | 25.7 | 3 | 60.5 | 80 | 0.15 | 0.27 | 0.42 | 0.93 |
2 | 15 | 25.7 | 3 | 60.5 | 80 | 0.26 | 0.67 | 1.1 | 1.56 |
3 | 30 | 25.7 | 3 | 60.5 | 80 | 0.34 | 0.78 | 1.34 | 1.89 |
4 | 50 | 25.7 | 3 | 60.5 | 80 | 0.37 | 0.88 | 1.36 | 1.85 |
编号 | 尾砂% | 灰砂比 | 固化剂% | 每立方用料KG/M3 | 浓度% | 抗压强度(Mpa) | |||
3天 | 7天 | 28天 | 60天 | ||||||
1 | 65 | 13 | 5 | 89 | 70 | 0.26 | 0.35 | 0.6 | 0.86 |
2 | 70 | 14 | 5 | 95 | 75 | 0.28 | 0.38 | 0.65 | 0.95 |
编号 | 固结料% | 灰砂比 | 浓度% | 流动度厘米 | 塌落度厘米 | 抗压强度(MPa) | ||||
3天 | 7天 | 14天 | 28天 | 60天 | ||||||
1 | 5 | 12 | 60 | 0.2 | 0.32 | 0.6 | 0.9 | 1.5 | ||
2 | 6 | 10 | 60 | 0.24 | 0.4 | 0.7 | 1.10 | 1.7 | ||
3 | 3 | 20.66 | 65 | 0.2 | 0.24 | 0.50 | 0.55 | 0.82 | ||
4 | 4 | 15.25 | 65 | 0.22 | 0.3 | 0.48 | 0.6 | 1.1 | ||
5 | 5 | 12 | 65 | 0.38 | 0.7 | 0.98 | 1.18 | 1.8 | ||
6 | 6 | 9.8 | 65 | 0.45 | 0.92 | 1.18 | 1.59 | 2.1 | ||
7 | 7 | 7.6 | 60 | 0.52 | 1.18 | 1.52 | 1.8 | 2.5 | ||
8 | 8 | 6.5 | 60 | 0.52 | 1.26 | 1.85 | 2.2 | 3.0 | ||
9 | 9 | 5.667 | 60 | 0.76 | 1.38 | 2.26 | 2.72 | 3.8 | ||
10 | 10 | 60 | 0.78 | 1.46 | 2.8 | 3.6 | 4.9 | |||
11 | 12 | 60 | 1.04 | 2.32 | 3.96 | 4.56 | 5.8 |
编号 | 固结料% | 粘土占% | 砂占% | 含水量% | 抗压强度(Mpa) | ||
3天 | 7天 | 28天 | |||||
1 | 8 | 77 | 0 | 15 | 2.5 | 3 | 8.5 |
2 | 9 | 76 | 0 | 15 | 3.5 | 4.8 | 12 |
3 | 10 | 70 | 0 | 20 | 2.7 | 4.7 | 10 |
4 | 11 | 69 | 0 | 20 | 2.4 | 6.2 | 11 |
5 | 12 | 68 | 0 | 20 | 3.6 | 6.4 | 11 |
6 | 13 | 67 | 0 | 20 | 4.5 | 8.3 | 14.5 |
7 | 14 | 66 | 0 | 20 | 3.8 | 6.6 | 14 |
8 | 8 | 35 | 47 | 10 | 4 | 7.8 | 16 |
9 | 10 | 48 | 30 | 12 | 5 | 10.8 | 22 |
10 | 10 | 30 | 50 | 10 | 8.2 | 13.6 | 22.5 |
11 | 10 | 35 | 45 | 10 | 8.5 | 13 | 22.5 |
12 | 10 | 30 | 50 | 10 | 8.8 | 13.2 | 30 |
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN99106222A CN1128772C (zh) | 1999-05-06 | 1999-05-06 | 全砂土固结充填材料、生产及使用方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN99106222A CN1128772C (zh) | 1999-05-06 | 1999-05-06 | 全砂土固结充填材料、生产及使用方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1273222A CN1273222A (zh) | 2000-11-15 |
CN1128772C true CN1128772C (zh) | 2003-11-26 |
Family
ID=5272333
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN99106222A Expired - Fee Related CN1128772C (zh) | 1999-05-06 | 1999-05-06 | 全砂土固结充填材料、生产及使用方法 |
Country Status (1)
Country | Link |
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CN (1) | CN1128772C (zh) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102190469A (zh) * | 2010-03-08 | 2011-09-21 | 淄博乾耀固结材料有限公司 | 一种新型尾砂固结剂及其制备方法 |
CN102241493B (zh) * | 2011-04-19 | 2012-11-14 | 广东红墙新材料股份有限公司 | 一种矿坑回填材料及其制备和使用方法 |
CN102434163A (zh) * | 2011-12-01 | 2012-05-02 | 山西阳泉盂县东坪煤业有限公司 | 综合机械化固体物充填采煤的方法 |
CN102786241A (zh) * | 2012-04-24 | 2012-11-21 | 河北钢铁集团矿业有限公司 | 用于全尾砂胶结充填的凝胶材料 |
CN102936102A (zh) * | 2012-09-20 | 2013-02-20 | 亓俊华 | 一种胶结固化材料及其生产方法和含有胶结固化材料的充填材料 |
CN102924005A (zh) * | 2012-11-19 | 2013-02-13 | 北京科技大学 | 一种具有微膨胀效应的矿山充填用胶凝材料 |
CN103043965A (zh) * | 2012-12-18 | 2013-04-17 | 山西四建集团有限公司 | 矿渣综合处理软弱地基材料 |
CN103485328B (zh) * | 2013-09-23 | 2015-04-08 | 河海大学 | 一种复合固化剂对土质边坡坡面生态加固的方法 |
CN103739263B (zh) * | 2013-12-27 | 2015-10-07 | 金川集团股份有限公司 | 一种用于空区填充处理含钒钛矿渣的胶凝材料 |
CN103880308A (zh) * | 2014-02-19 | 2014-06-25 | 江苏坤泽科技股份有限公司 | 一种石粉材料固化剂及其制备方法 |
CN105503116A (zh) * | 2016-01-21 | 2016-04-20 | 长沙有色冶金设计研究院有限公司 | 一种胶结充填料 |
CN105523747A (zh) * | 2016-01-27 | 2016-04-27 | 济南大学 | 一种矿坑充填胶结材料及其制备方法 |
CN106753384A (zh) * | 2016-11-25 | 2017-05-31 | 北京科技大学 | 一种绿色可降解无机固沙材料的固沙方法 |
CN106939796A (zh) * | 2017-05-03 | 2017-07-11 | 长沙矿山研究院有限责任公司 | 利用风化山砂制备充填料浆充填井下采空区的方法及系统 |
CN109142410B (zh) * | 2017-06-19 | 2020-12-15 | 天津大学 | 考虑各因素相互作用的含碳酸盐砂土的工程分类方法 |
CN109956730A (zh) * | 2019-04-24 | 2019-07-02 | 山东佳运环保科技有限公司 | 改性石膏土及其在作为基础工程填料中的应用与施工方法 |
CN109896794B (zh) * | 2019-04-24 | 2021-11-30 | 贵州净界科技有限公司 | 一种利用锰污染粘土所制备的路基复合材料及其制备方法 |
CN110451903B (zh) * | 2019-08-29 | 2022-04-05 | 深圳市中金岭南有色金属股份有限公司 | 一种复合胶结材料及高硫超细铅锌矿尾砂胶结的方法 |
CN114163155A (zh) * | 2021-12-02 | 2022-03-11 | 电子科技大学长三角研究院(湖州) | 一种新型改良复合钢渣激发剂的制备与应用 |
CN114349445A (zh) * | 2022-01-24 | 2022-04-15 | 安徽理工大学 | 一种利用含硫尾砂制备的路基稳定材料 |
-
1999
- 1999-05-06 CN CN99106222A patent/CN1128772C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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CN1273222A (zh) | 2000-11-15 |
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