%0 Journal Article
%T Thermal performance and strength mechanism analysis of using solid waste at low temperature to roast high-class heat insulation brick<br>固体废弃物低温烧制优等节能保温砖强度机理及热性能分析
%A Xu Zifang
%A Zhang Mingxu
%A Min Fanfei
%A <br>徐子芳
%A 张明旭
%A 闵凡飞
%J 环境工程学报
%D 2008
%I 
%X 采用废弃物粉煤灰和煤矸石为主要原料焙烧实心墙体保温砖.正交实验优化结果为:焙烧温度950℃,低于实心粘土砖100℃的焙烧温度,属于低温焙烧.焙烧周期24 h,粉煤灰和煤矸石的掺量比是60%:35%,掺膨胀珍珠岩的保温砖B7抗压强度为30.25 MPa,达到普通粘土砖MU30优等级;导热系数为0.400 W/(m·K),低于普通粘土砖的导热系数0.78 W/(m·K);此外,B7的XRD图谱出现明显的石英、莫来石衍射特征峰及TGA-DTA图谱在900～1 200℃的区间,随着温度的升高,坯体吸热开始熔融玻化,产生晶型转变,使力学性能得到提高;SEM扫描可见:经950 ℃焙烧后,球体状的实心玻璃珠、珠状皱晶的珍珠岩、絮凝状的铝硅酸盐相,原料颗粒之间的间隙被枯性玻璃质所填充,使B7产生很高的力学强度.
%K solid waste
%K roasting
%K insulating brick
%K performance analysis<br>固体废弃物
%K 焙烧
%K 保温砖
%K 性能分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=F902B78748F4AC449C410E91C86B026C&yid=67289AFF6305E306&vid=0B39A22176CE99FB&iid=E158A972A605785F&sid=E5D85F291CED2DA6&eid=385E3C2062167B88&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=11