生物质电厂灰渣替代水泥掺合料的性能研究  

Study on performance of biomass power plant ash as alternative to cement clinker in blended cements

作　　者：张雁茹 任常在 宋占龙[3] 朱建军 赵保峰 谢洪璋 王振江 祁晓乐 ZHANG Yanru;REN Changzai;SONG Zhanlong;ZHU Jianjun;ZHAO Baofeng;XIE Hongzhang;WANG Zhenjiang;QI Xiaole(National Energy Bio-Power Group Co.,Ltd.,Beijing 100052,China;School of Energy and Power Engineering,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China;National Engineering Laboratory for Coal-fired Pollutants Emission Reduction,Shandong University,Jinan 250061,China)

机构地区：[1]国能生物发电集团有限公司,北京100052 [2]齐鲁工业大学(山东省科学院)能源与动力工程学部,山东济南250353 [3]山东大学燃煤污染物减排国家工程实验室,山东济南250061

出　　处：《无机盐工业》2023年第10期128-135,共8页Inorganic Chemicals Industry

基　　金：国能生物发电集团有限公司科技项目(SGTYHT/20-JS-221);宁夏大学省部共建煤炭高效利用与绿色化工国家重点实验室开放基金项目(2022K51)。

摘　　要：在电力行业减碳的背景下,生物质发电技术已成为电力行业实现“双碳”目标的重要途径之一,然而,生物质电厂灰渣的利用已成为制约生物质电厂发展的瓶颈。生物质电厂灰渣具有一定的火山灰特性,有望成为水泥掺合料而逐渐被利用。分析了生物质电厂灰渣的理化特性,进而分别用10%~30%(质量分数)的生物质灰渣替代硅酸盐水泥熟料制备复合胶凝材料,验证生物质电厂灰渣替代熟料的可行性。实验结果表明,生物质灰渣作为水泥部分掺合料使用具有一定的优异性能,生物质灰渣可替代高达20%(质量分数)的熟料,复合胶凝材料的水化热降低明显,标准养护7 d和28 d后复合材料的强度都有显著提高。生物质灰渣被利用在建筑材料中将进一步实现电力行业“双碳”目标的达成。Under the proposal of“dual carbon”goal,biomass power plant has become an important way for achieving the dual carbon goal.However,the utilization of biomass power plant ash has become a bottleneck preventing the development of biomass power plants.Biomass power plant ash has pozzolanic properties and it is expected to be used as a substitute cement clinker in building materials industries.The physical and chemical properties of biomass power plant ash were ana⁃lyzed.Based on the physical and chemical properties,10%~30%(mass fraction)biomass power plant ash were used to replace portland cement clinker to prepare cementbased cementitious materials,and the possibility of biomass power plant ash and slag to replace cement clinker was verified.The test results showed that the use of biomass ash as a cementitious material had good prerequisites.The biomass ash could replace 20%(mass fraction)of cement clinker,the hydration heat of the composite cementitious material could be reduced significant,and the strength of the composite material was significantly improved after standard curing for 7 d and 28 d.The utilization of biomass power plant ash as building materials was expected to further help the realization of the“dual⁃carbon”goal of the power industry.

关 键 词：生物质灰渣 无机材料 水泥掺合料 机械性能 低碳 

分 类 号：X705[环境科学与工程—环境工程]