摘要
用ＸＲＤ和ＳＥＭＥＤＡＸ研究了无水石膏外墙板使用１８年后的相组成和显微结构．结果表明：水泥水化产物的形成及其对二水石膏晶体的保护作用，和未水化ＣａＳＯ４的长期稳定性是无水石膏外墙板具有较好耐候性的关键．
The results of XRD and SEM EDAX analysis of anhydrite external wallboard after 18 years' exposure were presented. It showed that the content of Portland cement hydrates for its protective action on dihydrate gypsum crystals and the long term stability of unhydrated CaSO 4 crystals are the important causes for the weather resistance improvement of anhydrite wallboard.
出处
《建筑材料学报》
EI
CAS
CSCD
1999年第1期85-88,共4页
Journal of Building Materials
关键词
无水石膏
外墙板
显微结构
相组成
anhydrite gypsum
external wallboard
accelerating agent
weather resistance
