活性钙含量与养护温度对底灰碱激发材料性能的影响  

Effect of active calcium content and curing temperature on properties of bottom ash alkali-activated materials

作　　者：王蔚 吴庆[1] 陆锴龙 韩佐承 陆寅杰 马士良 WANG Wei;WU Qing;LU Kailong;HAN Zuocheng;LU Yinjie;MA Shiliang(School of Civil Engineering and Architecture,Jiangsu University of Science and Technology,Zhenjiang 212000,China;Zhenjiang University Park Headquarters,Zhenjiang 212000,China)

机构地区：[1]江苏科技大学土木工程与建筑学院,江苏镇江212000 [2]镇江高校园区指挥部,江苏镇江212000

出　　处：《混凝土》2024年第3期97-100,107,共5页Concrete

基　　金：江苏省研究生科研与实践创新计划项目(KYCX21_3493);国家自然科学基金(52108455)。

摘　　要：为了探索效益更高的城市生活垃圾焚烧底灰碱激发材料的制备方式,对底灰碱激发材料开展了配合比设计、强度试验及微观分析,分析了养护温度及不同配合比底灰碱激发试件抗压强度发展的影响,并结合XRD、SEM-EDS、FT-IR等微观检测技术分析了聚合反应机理。结果表明:当底灰粒径不大于1.25 mm、水玻璃溶液与氢氧化钠溶液体积比为2∶1时,粒化高炉矿渣含量的提高会在一定程度上提高底灰碱激发试件的抗压强度;密封条件下复合养护温度更有利于聚合反应的进行与聚合产物的生成。In order to explore the preparation method of bottom ash alkali-activated materials for municipal solid waste incineration with higher efficiency,the mix proportion design,strength test and microscopic analysis of bottom ash alkali-activated materials were carried out.The effects of curing temperature and compressive strength development of bottom ash alkali-activated specimens with different mix proportions were analyzed.The polymerization mechanism was analyzed by XRD,SEM-EDS and FT-IR.The results show that when the particle size of bottom ash is less than 1.25 mm and the volume ratio of sodium silicate solution to sodium hydroxide solution is 2∶1,the increase of the content of granulated blast furnace slag(GBFS)will improve the compressive strength of the bottom ash alkali-activated specimens to a certain extent.The composite curing temperature under sealing condition is more conducive to the polymerization reaction and the formation of polymerization products.

关 键 词：活性钙 碱激发 养护温度 聚合反应 

分 类 号：TU528.064[建筑科学—建筑技术科学]