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| 摘要: |
| 用ＸＲＤ和ＳＥＭ ＥＤＡＸ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． |
| 关键词: 无水石膏 外墙板 激发剂 耐候性 |
| DOI： |
| 分类号:TQ177.374 |
| 基金项目: |
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| Phase Composition and Microstructure of Anhydrite External Wallboard after 18 Years'' Exposure |
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Yu Hongfa
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| Abstract: |
| 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. |
| Key words: anhydrite gypsum,external wallboard,accelerating agent,weather resistance |
