Long-Term Evolution Of Delayed Ettringite And Gypsum In Portland Cement Mortars Under Sulfate Erosion
文献类型：期刊论文
| 作者 | Chen JK ; Jiang MQ(蒋敏强)
|
| 刊名 | Construction and Building Materials
 |
| 出版日期 | 2009 |
| 页码 | 812-816 |
| 通讯作者邮箱 | chenjiankang@nbu.edu.cn |
| 关键词 | Ettringite Formation Gypsum Formation Portland Cement Mortars Sulfate Sodium Xrd Method Chloride Removal Concrete Expansion Attack |
| ISSN号 | 0950-0618 |
| 通讯作者 | Chen JK |
| 中文摘要 | The magnitude evolution of ettringite and gypsum in hydrated Portland cement mortars due to sulfate attack was detected by X-ray powder diffraction. The influences of sulfate concentration and water-to-cement ratio on the evolution of ettringite and gypsum were investigated. Experimental results show that the magnitude of ettringite formation in sodium sulfate solution follows a three-stage process, namely, the 'penetration period', 'enhance period of strength', and 'macro-crack period'. The cracking of concrete materials is mainly attributed to the effect of ettringite. The gypsum formations occurred in two stages, the 'latent period' and the 'accelerated period'. The gypsum formation including ettringite formation was relative to the linear expansion of mortars to some extend. Both water-to-cement ratio and sulfate concentration play important roles in the evolution of ettringite and gypsum. (C) 2008 Elsevier Ltd. All rights reserved. |
| 类目[WOS] | Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Construction & Building Technology ; Engineering ; Materials Science |
| 关键词[WOS] | CHLORIDE REMOVAL ; CONCRETE ; EXPANSION ; ATTACK |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000261779300025 |
| 公开日期 | 2009-08-03 ; 2009-10-09 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/26634]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Chen JK,Jiang MQ. Long-Term Evolution Of Delayed Ettringite And Gypsum In Portland Cement Mortars Under Sulfate Erosion[J]. Construction and Building Materials,2009:812-816. |
| APA | Chen JK,&蒋敏强.(2009).Long-Term Evolution Of Delayed Ettringite And Gypsum In Portland Cement Mortars Under Sulfate Erosion.Construction and Building Materials,812-816. |
| MLA | Chen JK,et al."Long-Term Evolution Of Delayed Ettringite And Gypsum In Portland Cement Mortars Under Sulfate Erosion".Construction and Building Materials (2009):812-816. |
入库方式： OAI收割
来源：力学研究所
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