CN112094099A - 一种钢渣基透水混凝土 - Google Patents
一种钢渣基透水混凝土 Download PDFInfo
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- steel slag
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 80
- 239000002893 slag Substances 0.000 title claims abstract description 80
- 239000010959 steel Substances 0.000 title claims abstract description 80
- 239000011380 pervious concrete Substances 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims abstract description 15
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 10
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims abstract description 10
- 239000010452 phosphate Substances 0.000 claims abstract description 10
- 229910021538 borax Inorganic materials 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 238000007873 sieving Methods 0.000 claims description 7
- 239000004328 sodium tetraborate Substances 0.000 claims description 7
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 7
- LFVGISIMTYGQHF-UHFFFAOYSA-N ammonium dihydrogen phosphate Chemical group [NH4+].OP(O)([O-])=O LFVGISIMTYGQHF-UHFFFAOYSA-N 0.000 claims description 5
- 229910000387 ammonium dihydrogen phosphate Inorganic materials 0.000 claims description 5
- 235000019837 monoammonium phosphate Nutrition 0.000 claims description 5
- 229910000402 monopotassium phosphate Inorganic materials 0.000 claims description 3
- 235000019796 monopotassium phosphate Nutrition 0.000 claims description 3
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 3
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 3
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 3
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 230000035699 permeability Effects 0.000 abstract description 13
- 239000004567 concrete Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 238000009833 condensation Methods 0.000 abstract description 3
- 230000005494 condensation Effects 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000002156 mixing Methods 0.000 description 5
- 238000000465 moulding Methods 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 238000005303 weighing Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910001341 Crude steel Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 1
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/34—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders
- C04B28/344—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing cold phosphate binders the phosphate binder being present in the starting composition solely as one or more phosphates
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/04—Waste materials; Refuse
- C04B18/14—Waste materials; Refuse from metallurgical processes
- C04B18/141—Slags
- C04B18/142—Steelmaking slags, converter slags
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00241—Physical properties of the materials not provided for elsewhere in C04B2111/00
- C04B2111/00284—Materials permeable to liquids
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
本发明公开了一种钢渣基透水混凝土,其组成物及重量份为钢渣100份、磷酸盐15‑30份、缓凝剂1‑5份、钢渣骨料50‑150份;使用时该混凝土材料与水搅拌混合均匀,成形,自然养护即可,其具有早期强度高,低温凝结速度快,体积变形小,环境适应性广,透水性能良好等优良性能;本发明克服了传统透水混凝土强度低的缺点,同时可以有效处理大量废弃钢渣,实现节能降耗与减排,具有一定的环保和经济效益。
Description
技术领域
本发明涉及一种钢渣基透水混凝土,属于建筑材料技术领域。
背景技术
钢渣是钢铁工业的主要固体废物,每年都在大量生产,应被视为绿色资源。根据中国国家统计局的数据显示,2019年中国粗钢产量为9.963亿吨,钢渣产量超过1亿吨。在中国,钢渣年产量巨大,但回收率还达不到30%。造成钢渣利用率低的原因,主要包括过时的处理方法,有限的道路建设利用率以及应用于农业的法律限制。过低的利用率造成钢渣被大量堆存,占用大量土地与农田,污染环境。并且,钢渣中的碱性浸出液还会对地下水及土壤造成潜在污染。因此,钢渣的资源化利用已经成为社会和行业需要面临的重要问题。
发明内容
针对现有技术存在的问题,本发明提供了一种钢渣基透水混凝土,其组成物及重量份为钢渣100份、磷酸盐15-30份、缓凝剂1-5份、钢渣骨料50-150份;使用时该混凝土材料与水搅拌混合均匀,成形,自然养护即可,本发明方法制备的透水混凝土是以钢渣基磷酸盐水泥为主要黏结相,钢渣原料为骨料的一类无机胶凝材料,具有早期强度高,低温凝结速度快,体积变形小,环境适应性广,透水性能良好等优良性能;以工业废渣钢渣为原料制备透水混凝土,不仅降低了材料制备成本,克服了传统透水混凝土强度低的缺点,同时可以实现节能降耗与减排,本发明有助于新型环保透水混凝土的发展,为钢渣的高效资源化利用提供一种新途径。
所述钢渣是经过粉磨,过120目筛,筛余量小于5%的粉末。
所述钢渣骨料是钢渣经粉碎过筛后制得的粒度2.5-15.0mm的材料。
所述磷酸盐为磷酸二氢铵、磷酸二氢钾或磷酸二氢钠。
所述缓凝剂为硼砂。
本发明钢渣基透水混凝土的养护方式为自然养护。
本发明优点和有益效果:
(1)本发明钢渣基透水混凝土使用方法与普通硅酸盐类似,只需添加水即可,操作简单;
(2)钢渣与磷酸盐通过酸碱化学反应,形成以磷酸盐为主要粘结相的无机胶凝材料,复合钢渣骨料制备新型透水混凝土,使混凝土具有早期强度高,低温凝结速度快,体积变形小,环境适应性广,透水性能良好等优良性能;
(3)利用钢渣中复合金属物相制备磷酸盐水泥,钢渣骨料替代天然骨料,克服了传统透水混凝土强度低的缺点,同时可以实现节能降耗与减排,这项研究有助于新型环保透水混凝土的发展,为钢渣的高效资源化利用提供一种新途径,具有一定的环保和经济效益。
具体实施方式
以下结合实施例对本发明作进一步详细说明,但本发明保护范围不局限于所述内容。
实施例1
(1)本钢渣基透水混凝土由钢渣100份、磷酸二氢钠25份、硼砂3份、钢渣骨料100份组成;钢渣是经过粉磨,过120目筛,筛余量小于5%的粉末,钢渣骨料是钢渣经粉碎过筛后制得的粒度2.5-5.0mm的材料;
(2)称取步骤(1)中混合物料,添加36.5份的水混合搅拌3min,迅速倒入40mm×40mm×40mm六联模具中,通过振动成型法成型,制得钢渣基透水混凝土试样;试样成型3h后脱模,采用自然养护方式养护至一定龄期测试其抗压强度及透水性;试样3d抗压强度14.6MPa,透水系数5.71mm/s。
实施例2
(1)本钢渣基透水混凝土由钢渣100份、磷酸二氢铵30 份、硼砂5份、钢渣骨料150份组成;钢渣是经过粉磨,过120目筛,筛余量小于5%的粉末,钢渣骨料是钢渣经粉碎过筛后制得的粒度2.5-5.0mm的材料;
(2)称取步骤(1)中混合物料,添加45.6份的水混合搅拌3min,迅速倒入40mm×40mm×40mm六联模具中,通过振动成型法成型,制得钢渣基透水混凝土试样;试样成型3h后脱模,采用自然养护方式养护至一定龄期测试其抗压强度及透水性;试样3d抗压强度16.7MPa,透水系数6.80mm/s。
实施例3
(1)本钢渣基透水混凝土由钢渣100份、磷酸二氢钾25份、硼砂1份、钢渣骨料100份组成;钢渣是经过粉磨,过120目筛,筛余量小于5%的粉末,钢渣骨料是钢渣经粉碎过筛后制得的粒度2.5-5.0mm的材料;
(2)称取步骤(1)中混合物料,添加36.2份的水混合搅拌3min,迅速倒入40mm×40mm×40mm六联模具中,通过振动成型法成型,制得钢渣基透水混凝土试样;试样成型3h后脱模,采用自然养护方式养护至一定龄期测试其抗压强度及透水性;试样3d抗压强度13.4MPa,透水系数5.83mm/s。
实施例4
(1)本钢渣基透水混凝土由钢渣100份、磷酸二氢铵20份、硼砂3份、钢渣骨料100份组成;钢渣是经过粉磨,过120目筛,筛余量小于5%的粉末,钢渣骨料是钢渣经粉碎过筛后制得的粒度5-10mm的材料;
(2)称取步骤(1)中混合物料,添加35.7份的水混合搅拌3min,迅速倒入40mm×40mm×40mm六联模具中,通过振动成型法成型,制得钢渣基透水混凝土试样;试样成型3h后脱模,采用自然养护方式养护至一定龄期测试其抗压强度及透水性;试样3d抗压强度17.2MPa,透水系数7.13mm/s。
实施例5
(1)本钢渣基透水混凝土由钢渣100份、磷酸二氢铵15份、硼砂3份、钢渣骨料50份组成;钢渣是经过粉磨,过120目筛,筛余量小于5%的粉末,钢渣骨料是钢渣经粉碎过筛后制得的粒度10-15mm的材料;
(2)称取步骤(1)中混合物料,添加26.9份的水混合搅拌3min,迅速倒入40mm×40mm×40mm六联模具中,通过振动成型法成型,制得钢渣基透水混凝土试样;试样成型3h后脱模,采用自然养护方式养护至一定龄期测试其抗压强度及透水性;试样3d抗压强度14.6MPa,透水系数7.45mm/s。
Claims (6)
1.一种钢渣基透水混凝土,其特征在于:组成物及重量份为钢渣100份、磷酸盐15-30份、缓凝剂1-5份、钢渣骨料50-150份。
2.根据权利要求1所述的钢渣基透水混凝土,其特征在于:钢渣是经过粉磨,过120目筛,筛余量小于5%的粉末。
3.根据权利要求1所述的钢渣基透水混凝土,其特征在于:钢渣骨料是钢渣经粉碎过筛后制得的粒度2.5-15.0mm的材料。
4.根据权利要求1所述的钢渣基透水混凝土,其特征在于:使用时,将钢渣、磷酸盐、缓凝剂、钢渣骨料与水混合均匀,成形,自然养护即可。
5.根据权利要求1所述的钢渣基透水混凝土,其特征在于:磷酸盐为磷酸二氢铵、磷酸二氢钾或磷酸二氢钠。
6.根据权利要求1所述的钢渣基透水混凝土,其特征在于:缓凝剂为硼砂。
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CN113336522A (zh) * | 2021-06-10 | 2021-09-03 | 昆明理工大学 | 一种高炉钛矿渣基多孔磷酸盐材料及其应用 |
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CN101293760A (zh) * | 2007-04-28 | 2008-10-29 | 上海固华墙体环保科技有限公司 | 彩色透水混凝土路面及其施工工艺 |
CN109574595A (zh) * | 2019-01-17 | 2019-04-05 | 河海大学 | 一种c40级抗冻融钢渣透水混凝土 |
CN111410447A (zh) * | 2020-04-16 | 2020-07-14 | 昆明理工大学 | 一种钢渣基多金属复合磷酸盐水泥 |
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RU2316519C1 (ru) * | 2006-08-21 | 2008-02-10 | Юлия Алексеевна Щепочкина | Сырьевая смесь |
CN101293760A (zh) * | 2007-04-28 | 2008-10-29 | 上海固华墙体环保科技有限公司 | 彩色透水混凝土路面及其施工工艺 |
CN109574595A (zh) * | 2019-01-17 | 2019-04-05 | 河海大学 | 一种c40级抗冻融钢渣透水混凝土 |
CN111410447A (zh) * | 2020-04-16 | 2020-07-14 | 昆明理工大学 | 一种钢渣基多金属复合磷酸盐水泥 |
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CN113336522A (zh) * | 2021-06-10 | 2021-09-03 | 昆明理工大学 | 一种高炉钛矿渣基多孔磷酸盐材料及其应用 |
CN113336522B (zh) * | 2021-06-10 | 2022-09-06 | 昆明理工大学 | 一种高炉钛矿渣基多孔磷酸盐材料及其应用 |
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