南京工业大学学报（自然科学版）2012，Vol.34Issue(2)：73-77,5.DOI:10.3969/j.issn.1671-7627.2012.02.016
掺MgO超细水泥的膨胀性能及其水化程度
Expansion property of super-fine cement paste added MgO expansive agent and hydration degree of MgO
石帅 1邓敏 1莫立武1
作者信息
- 1. 南京工业大学材料科学与工程学院,材料化学工程国家重点实验室,江苏南京210009
- 折叠
摘要
Abstract
The effects of MgO-bearing expansive agent ( MEA) with different activities on expansion property of super-fine cement grouts were investigated. The hydration degree of MgO-bearing expansive agent was analyzed by thermogravimetric-differential thermogravimetric analyzer. Results showed that MEA could compensate the shrink of super-fine cement paste in hard stage commendably. MEA with higher activity caused a larger early expansion and a smaller final expansion, while MEA with lower activity caused a smaller early expansion and a larger final expansion. With the admixture amounts of MEA increasing, the expansion of cement pastes increased. Replacing super-fine cement with super-fine fly ash would restrain the expansion of cement pastes containing MEA.关键词
超细水泥/MgO膨胀剂/膨胀性能/水化程度Key words
super-fine cement/MEA/expansion property/hydration degree分类
建筑与水利引用本文复制引用
石帅,邓敏,莫立武..掺MgO超细水泥的膨胀性能及其水化程度[J].南京工业大学学报（自然科学版）,2012,34(2):73-77,5.
