循环流化床炉渣基地质聚合物的制备及性能研究  

Preparation and performance study of circulating fluidized bed slag-based geopolymer

作　　者：柴倩[1] 康乐 陈柳霖 张恬恬 程丰梅 吴云瑞 杨璐泽 CHAI Qian;KANG Le;CHEN Liulin;ZHANG Tiantian;CHENG Fengmei;WU Yunrui;YANG Luze(School of Civil Engineering,Xi’an University of Architecture and Technology Huaqing College,Xi’an 710043,China;School of Materials Science and Engineering,Xi’an University of Science and Technology,Xi’an 710054,China)

机构地区：[1]西安建筑科技大学华清学院土木工程学院,陕西西安710043 [2]西安科技大学材料科学与工程学院,陕西西安710054

出　　处：《混凝土与水泥制品》2025年第1期116-119,共4页China Concrete and Cement Products

基　　金：国家级大学生创新创业项目(202313679001);陕西省教育厅一般专项项目(23JK0523)。

摘　　要：以循环流化床(CFB)炉渣为主要原材料,掺入适量Na_(2)SiO_(3)、KOH、NaCl三元复合激发剂制备了地质聚合物,研究了其力学性能和抗海水侵蚀性能,并进行了微观分析。结果表明:制备的炉渣基地质聚合物具有早强特性,7 d抗压强度可达61.62 MPa;复合激发剂可促进炉渣中的石英和蓝晶石相活化,改变钙长石相的晶体结构,生成大量无定形相,使基体内部结构更密实;炉渣基地质聚合物在淡水和模拟海水中干湿循环28次后的抗压强度分别为49.66 MPa和38.41 MPa。A geopolymer was prepared by using circulating fluidized bed(CFB)slag as the main raw material,with an appropriate content of Na_(2)SiO_(3),KOH,and NaCl ternary composite activator added.The mechanical properties and resistance to seawater erosion were studied,and the microscopic analysis was conducted.The results show that the prepared slag-based geopolymer has early strength characteristics,with the 7 d compressive strength of 61.62 MPa.Composite activators can promote the activation of quartz and kyanite phases in slag,alter the crystal structure of calcium feldspar phases,and generate a large amount of amorphous phases,thus makinge the internal structure of the matrix more compact.The compressive strength of slag-based geopolymer after 28 times of dry-wet cycles in water and simulated seawater is 49.66 MPa and 38.41 MPa,respectively.

关 键 词：循环流化床炉渣 地质聚合物 复合激发剂 力学性能 干湿循环 

分 类 号：TU528.0[建筑科学—建筑技术科学]