工程科学学报，第38卷，第7期：899-905,2016年7月 Chinese Journal of Engineering,Vol.38,No.7:899-905,July 2016 DOI:10.13374/j.issn2095-9389.2016.07.002:http://journals.ustb.edu.cn 膏体充填用矿渣一钢渣基胶结剂协同固化P2+ 阎爱云1》，倪文12)，黄晓燕12》，张静文12》，李亚奇12》，徐东12) 1)北京科技大学金属矿山高效开采与安全教有部重点实验室，北京100083 2)北京科技大学工业典型污染物资源化处理北京市重点实验室，北京100083 ☒通信作者，E-mail:iwcn@ces.usth.cdu.cn 摘要利用矿渣一钢渣基胶凝材料（简称治金渣胶凝材料）代替传统充填料中使用的水泥作为胶结剂，摻入含铅尾砂制成 胶结充填料试样，通过流动度和抗压强度表征其工作性能，通过P2*浸出质量浓度表征其固化效果，通过X射线衍射、红外 光谱、差示扫描量热法等手段分析其物相组成，并与P·I42.5硅酸盐水泥作对比.在相同条件下，治金渣胶凝材料试样的流 动度平均高出水泥50mm,且28d强度符合一般矿山3.0MPa的要求.治金渣胶凝材料试样28d龄期铅浸出质量浓度低于地 下水环境质量标准Ⅲ类水0.05mgL的限值，而水泥为0.1mgL'左右.治金渣固化铅性能优于水泥的机理在于治金渣胶 凝材料水化生成更多钙矾石。此外，治金渣胶凝材料水化产物可能存在类沸石相，更有利于吸附固化P2· 关键词治金渣：胶结充填：固化：稳定化：铅 分类号X756 Solidification/stabilization of Pb2 within a blast furnace slag-steel slag based cementing agent for paste backfilling YAN Ai-yun),NI Wen,HUANG Xiao-yan!),ZHANG Jing-en,LI Ya-qi,XU Dong) 1)Key Laboratory of the Ministry of Education for High-efficient Mining and Safety of Metal Mines,University of Science and Technology Beijing,Bei- jing 100083,China 2)Beijing Key Laboratory of Resource-riented Treatment of Industrial Pollutants,University of Science and Technology Beijing,Beijing 100083,China Corresponding author,E-mail:niwen@ces.ustb.edu.cn ABSTRACT Backfilling material specimens were prepared with Pb-bearing ore tailings and a blast furnace slag-steel slag based ce- menting agent (BSCA)used as a replacement for cement in traditional backfilling materials.Other types of specimens with ordinary Portland cement (P.142.5)as cementing agents were also made for comparison.Flowability and compressive strength tests were per- formed to study the working performance of the specimens,and leaching tests were done to investigate the immobilization of Pb2in the specimens.The phase composition of the hydrated specimens was analyzed by means of X-ray diffraction,Fourier transform infrared spectroscopy and differential scanning calorimetry.It is found that the backfilling material with BSCA has a flowability of 50 mm higher than that with ordinary cement.The 28-d compressive strength of the BSCA-based specimens reaches 3.0 MPa,which meets the strength requirement for underground backfilling.The quantities of Pb'leached from the BSCA-based specimens aged for 28d are be- low 0.05 mgL,which is the threshold value of Pb'concentration for Type ll ground water in Chinese quality standard for ground water GB/T 14848-93.In comparison,the quantities of Pb2 leached from the cement-containing specimens aged for 28d are 0.1 mg .L.The reason for this higher immobilization degree of Pbin the hydrated BSCA-based specimens is that a higher amount of ettringite forms in them.Moreover,the formation of zeolite-like facies in the hydrated BSCA-based specimens is favorable for immobili- zing Pb2'. KEY WORDS metallurgical slag:paste backfilling:solidification:stabilization:lead 收稿日期：2015-0901 基金项目：国家自然科学基金资助项目(41472043)工程科学学报，第 38 卷，第 7 期: 899--905，2016 年 7 月 Chinese Journal of Engineering，Vol． 38，No． 7: 899--905，July 2016 DOI: 10． 13374 /j． issn2095--9389． 2016． 07． 002; http: / /journals． ustb． edu． cn 膏体充填用矿渣--钢渣基胶结剂协同固化 Pb2 + 阎爱云1，2) ，倪 文1，2) ，黄晓燕1，2) ，张静文1，2) ，李亚奇1，2) ，徐 东1，2) 1) 北京科技大学金属矿山高效开采与安全教育部重点实验室，北京 100083 2) 北京科技大学工业典型污染物资源化处理北京市重点实验室，北京 100083  通信作者，E-mail: niwen@ ces． ustb． edu． cn 收稿日期: 2015--09--01 基金项目: 国家自然科学基金资助项目( 41472043) 摘 要 利用矿渣--钢渣基胶凝材料( 简称冶金渣胶凝材料) 代替传统充填料中使用的水泥作为胶结剂，掺入含铅尾砂制成 胶结充填料试样，通过流动度和抗压强度表征其工作性能，通过 Pb2 + 浸出质量浓度表征其固化效果，通过 X 射线衍射、红外 光谱、差示扫描量热法等手段分析其物相组成，并与 P·I 42. 5 硅酸盐水泥作对比． 在相同条件下，冶金渣胶凝材料试样的流 动度平均高出水泥 50 mm，且 28 d 强度符合一般矿山 3. 0 MPa 的要求． 冶金渣胶凝材料试样 28 d 龄期铅浸出质量浓度低于地 下水环境质量标准Ⅲ类水 0. 05 mg·L － 1的限值，而水泥为 0. 1 mg·L － 1左右． 冶金渣固化铅性能优于水泥的机理在于冶金渣胶 凝材料水化生成更多钙矾石． 此外，冶金渣胶凝材料水化产物可能存在类沸石相，更有利于吸附固化 Pb2 + ． 关键词 冶金渣; 胶结充填; 固化; 稳定化; 铅 分类号 X756 Solidification / stabilization of Pb2 + within a blast furnace slag--steel slag based cementing agent for paste backfilling YAN Ai-yun1，2) ，NI Wen1，2)  ，HUANG Xiao-yan1，2) ，ZHANG Jing-wen1，2) ，LI Ya-qi1，2) ，XU Dong1，2) 1) Key Laboratory of the Ministry of Education for High-efficient Mining and Safety of Metal Mines，University of Science and Technology Beijing，Bei￾jing 100083，China 2) Beijing Key Laboratory of Ｒesource-oriented Treatment of Industrial Pollutants，University of Science and Technology Beijing，Beijing 100083，China  Corresponding author，E-mail: niwen@ ces． ustb． edu． cn ABSTＲACT Backfilling material specimens were prepared with Pb-bearing ore tailings and a blast furnace slag--steel slag based ce￾menting agent ( BSCA) used as a replacement for cement in traditional backfilling materials． Other types of specimens with ordinary Portland cement ( P·I 42. 5) as cementing agents were also made for comparison． Flowability and compressive strength tests were per￾formed to study the working performance of the specimens，and leaching tests were done to investigate the immobilization of Pb2 + in the specimens． The phase composition of the hydrated specimens was analyzed by means of X-ray diffraction，Fourier transform infrared spectroscopy and differential scanning calorimetry． It is found that the backfilling material with BSCA has a flowability of 50 mm higher than that with ordinary cement． The 28-d compressive strength of the BSCA-based specimens reaches 3. 0 MPa，which meets the strength requirement for underground backfilling． The quantities of Pb2 + leached from the BSCA-based specimens aged for 28 d are be￾low 0. 05 mg·L － 1，which is the threshold value of Pb2 + concentration for Type Ⅲ ground water in Chinese quality standard for ground water GB/T 14848—93． In comparison，the quantities of Pb2 + leached from the cement-containing specimens aged for 28 d are 0. 1 mg ·L － 1 ． The reason for this higher immobilization degree of Pb2 + in the hydrated BSCA-based specimens is that a higher amount of ettringite forms in them． Moreover，the formation of zeolite-like facies in the hydrated BSCA-based specimens is favorable for immobili￾zing Pb2 + ． KEY WOＲDS metallurgical slag; paste backfilling; solidification; stabilization; lead