摘要
阐述了碳硫硅钙石 (thaumasite)的形成机理、形成条件及破坏机理。指出在低温环境下 ,当混凝土中存在C—S—H凝胶、碳酸盐、硫酸盐及充足的水时 ,混凝土中可形成碳硫硅钙石 ,使混凝土遭受破坏 ,并对此提出了预防措施。
? The formation conditions & mechanism of thaumasite and its destructive effect to concrete are described. The non binder thaumasites can be formed from the binder calcium silicate hydrate C—S—H in the presence of carbonates and/or atmospheric carbon dioxide, sulfate and moisture at low temperatures, and some measures should be taken to prevent the occurrence of sulfate attack by thaumasite. 〔
出处
《混凝土》
CAS
CSCD
2001年第6期3-5,共3页
Concrete
