摘要
以赤泥为主要原料,辅以粉煤灰、粘结剂等经发泡、高温煅烧等工艺制备赤泥基发泡轻质保温材料,研究原材料配比、发泡剂掺量、烧结温度及保温时间等因素对其性能的影响规律,并分析其形成机理。结果表明,m(赤泥)∶m(粉煤灰)=10∶8,烧结温度为1150℃,保温时间为120 min,时,制备的赤泥发泡轻质保温材料的密度为479 kg/m^(3),抗折强度为0.41 MPa,抗压强度为1.15 MPa,导热系数为0.09 W/(m·K)。
Red mud based foamed lightweight insulation materials are prepared through foaming and high-temperature calcination by using red mud as the main raw material,supplemented by fly ash and binders.The effects of raw material ratio,foaming agent content,sintering temperature and holding time on its properties were studied,and its formation mechanism was analyzed.The results show that when m(red mud)∶m(fly ash)=10∶8,sintering temperature is 1150℃,holding time is 120 min,the density of the prepared red mud foam light insulation material is 479 kg/m^(3),the bending strength is 0.41 MPa,and the compressive strength is 1.15 MPa.The thermal conductivity is 0.09 W/(m·K).
作者
李南
陈晨
耿志涛
姜葱葱
LI Nan;CHEN Chen;GENG Zhitao;JIANG Congcong(CITIC General Institute of Architectural Design and Research Co.Ltd,Wuhan 430014,China;Shandong Hengxin Architectural Design Co.Ltd.,Ji'nan 250100,China;University of Ji'nan,Ji'nan 250022,China)
出处
《新型建筑材料》
2023年第8期150-153,159,共5页
New Building Materials
关键词
赤泥
粉煤灰
发泡
保温材料
red mud
fly ash
foaming
thermal insulation materials
作者简介
李南,男,1984年生,硕士,高级工程师,研究方向:新型建筑材料制品研发、建筑设计,E-mail:1041199506@qq.com。
