高强钢渣陶粒特性试验研究
为资源化利用钢渣,以钢渣、粉煤灰和粘土为主要原料制备高强陶粒。试验研究表明,随钢渣的质量分数增加,钢渣高强陶粒的堆积密度增加、吸水率降低、筒压强度提高。当钢渣质量分数在10~20%时,可制得堆积密度800~1200 kg/m~3、筒压强度7~13 MPa的高强陶粒。SEM-EDS分析发现,陶粒内部气孔多、分布均匀、少连通,这种结构有利于堆积密度的降低。X射线衍射（XRD）分析表明,陶粒中主要晶体为透辉石（CaO·MgO·2SiO_2）,石英（α-SiO_2）、钙铁辉石（CaO·FeO·2SiO_2）和钙长石（CaO·Al_2O_3·2SiO_2）,这些晶体的存在有助于钢渣陶粒强度的提高。...
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| Published in | 矿产综合利用 no. 1; pp. 96 - 100 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
武汉科技大学资源与环境工程学院,湖北武汉,430081%北京首钢国际工程技术有限公司,北京,100043%武汉钢铁股份有限公司研究院前沿研究所,湖北武汉,430081
2018
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-6532 |
| DOI | 10.3969/j.issn.1000-6532.2018.01.021 |
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| Abstract | 为资源化利用钢渣,以钢渣、粉煤灰和粘土为主要原料制备高强陶粒。试验研究表明,随钢渣的质量分数增加,钢渣高强陶粒的堆积密度增加、吸水率降低、筒压强度提高。当钢渣质量分数在10~20%时,可制得堆积密度800~1200 kg/m~3、筒压强度7~13 MPa的高强陶粒。SEM-EDS分析发现,陶粒内部气孔多、分布均匀、少连通,这种结构有利于堆积密度的降低。X射线衍射（XRD）分析表明,陶粒中主要晶体为透辉石（CaO·MgO·2SiO_2）,石英（α-SiO_2）、钙铁辉石（CaO·FeO·2SiO_2）和钙长石（CaO·Al_2O_3·2SiO_2）,这些晶体的存在有助于钢渣陶粒强度的提高。 |
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| AbstractList | TD989%X756; 为资源化利用钢渣,以钢渣、粉煤灰和粘土为主要原料制备高强陶粒.试验研究表明,随钢渣的质量分数增加,钢渣高强陶粒的堆积密度增加、吸水率降低、筒压强度提高.当钢渣质量分数在10～20％时,可制得堆积密度800～1200 kg/m3、筒压强度7～13 MPa的高强陶粒.SEM-EDS分析发现,陶粒内部气孔多、分布均匀、少连通,这种结构有利于堆积密度的降低.X射线衍射(XRD)分析表明,陶粒中主要晶体为透辉石(CaO· MgO· 2SiO2),石英(α-SiO2)、钙铁辉石(CaO· FeO·2SiO2)和钙长石(CaO· A12O3· 2SiO2),这些晶体的存在有助于钢渣陶粒强度的提高. 为资源化利用钢渣,以钢渣、粉煤灰和粘土为主要原料制备高强陶粒。试验研究表明,随钢渣的质量分数增加,钢渣高强陶粒的堆积密度增加、吸水率降低、筒压强度提高。当钢渣质量分数在10~20%时,可制得堆积密度800~1200 kg/m~3、筒压强度7~13 MPa的高强陶粒。SEM-EDS分析发现,陶粒内部气孔多、分布均匀、少连通,这种结构有利于堆积密度的降低。X射线衍射（XRD）分析表明,陶粒中主要晶体为透辉石（CaO·MgO·2SiO_2）,石英（α-SiO_2）、钙铁辉石（CaO·FeO·2SiO_2）和钙长石（CaO·Al_2O_3·2SiO_2）,这些晶体的存在有助于钢渣陶粒强度的提高。 |
| Abstract_FL | The steel slag,the fly ash,and the clay are used as the main raw material for the ceramsite preparation to solve the utilization problem of the steel slag.Test results show that with the increase of mass fraction of the slag,the packing density of the ceramsite goes up,the water absorption of the ceramsite gets less,and the cylinder pressure strength becomes stronger.When the mass fraction of steel slag is 10-20％,the high strength ceramsite with the bulk density of 800-1200 kg/m3,and the cylinder pressure strength of 7-13 MPa can be made.SEM-EDS analysis shows that there are a large number of small and insulated pores in the slag ceramsite.It is,therefore,indicated that the ceramsite with the lower density and the higher cylinder pressure strength can be prepared by the steel slag.It is found from XRD analysis that the diopside(CaO · MgO2 · SiO2),hedenbergite(CaO · FeO · 2SiO2),quartz(α-SiO2),as well as the anorthite (CaAl2 · Si208) are the main crystals in the steel slag ceramsite.The presence of these crystals is useful to enhance the strength of the steel slag ceramsite. |
| Author | 向晓东;唐卫军;江新卫;何明生;李梦玲;李灿华 |
| AuthorAffiliation | 武汉科技大学资源与环境工程学院,湖北武汉430081;北京首钢国际工程技术有限公司,北京100043;武汉钢铁股份有限公司研究院前沿研究所,湖北武汉430081 |
| AuthorAffiliation_xml | – name: 武汉科技大学资源与环境工程学院,湖北武汉,430081%北京首钢国际工程技术有限公司,北京,100043%武汉钢铁股份有限公司研究院前沿研究所,湖北武汉,430081 |
| Author_FL | Xiang Xiaodong Jiang Xinwei He Mingsheng Li Canhua Tang Weijun Li Mengling |
| Author_FL_xml | – sequence: 1 fullname: Xiang Xiaodong – sequence: 2 fullname: Tang Weijun – sequence: 3 fullname: Jiang Xinwei – sequence: 4 fullname: He Mingsheng – sequence: 5 fullname: Li Mengling – sequence: 6 fullname: Li Canhua |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| Keywords | 堆积密度 筒压强度 Ceramsite 吸水率 钢渣 Steel slag Cylinder pressure strength Water absorption Packing density 陶粒 |
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| Notes | 51-1251/TD The steel slag, the fly ash, and the clay are used as the main raw material for the ceramsite preparation to solve the utilization problem of the steel slag. Test results show that with the increase of mass fraction of the slag, the packing density of the ceramsite goes up, the water absorption of the ceramsite gets less, and the cylinder pressure strength becomes stronger. When the mass fraction of steel slag is 10-20%, the high strength ceramsite with the bulk density of 800-1200 kg/m~3, and the cylinder pressure strength of 7-13 MPa can be made. SEM-EDS analysis shows that there are a large number of small and insulated pores in the slag ceramsite. It is, therefore, indicated that the ceramsite with the lower density and the higher cylinder pressure strength can be prepared by the steel slag. It is found from XRD analysis that the diopside（CaO·MgO_2·SiO_2）, hedenbergite（CaO·FeO·2SiO_2）, quartz（α-SiO_2）, as well as the anorthite（CaAl_2·Si_2O_8） are the main crystals in the steel slag ceramsite. Th |
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| PublicationTitle | 矿产综合利用 |
| PublicationTitleAlternate | Multipurpose Utilization of Mineral Resources |
| PublicationTitle_FL | Multipurpose Utilization of Mineral Resources |
| PublicationYear | 2018 |
| Publisher | 武汉科技大学资源与环境工程学院,湖北武汉,430081%北京首钢国际工程技术有限公司,北京,100043%武汉钢铁股份有限公司研究院前沿研究所,湖北武汉,430081 |
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| Snippet | 为资源化利用钢渣,以钢渣、粉煤灰和粘土为主要原料制备高强陶粒。试验研究表明,随钢渣的质量分数增加,钢渣高强陶粒的堆积密度增加、吸水率降低、筒压强度提高。当钢渣质量分数在10~20%时,可制得堆积密度800~1200 kg/m~3、筒压强度7~13... TD989%X756; 为资源化利用钢渣,以钢渣、粉煤灰和粘土为主要原料制备高强陶粒.试验研究表明,随钢渣的质量分数增加,钢渣高强陶粒的堆积密度增加、吸水率降低、筒压强度提高.当钢渣质量分数在10～20％时,可制得堆积密度800～1200 kg/m3、筒压强度7～13... |
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| SubjectTerms | 钢渣;陶粒;堆积密度;筒压强度;吸水率 |
| Title | 高强钢渣陶粒特性试验研究 |
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