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Effects of electrochemical chloride extraction on microstructure of various cement paste systems
| Content Provider | Scilit |
|---|---|
| Author | Yen, Nguyen Thi Hai Hiroshi, Yokota Katsufumi, Hashimoto |
| Copyright Year | 2015 |
| Description | The adverse effects of the long term application of electrochemical chloride extraction on binding capacity of hydrated cement products are inneg-ligible. In this study, the influences of electrochemical chloride extraction in the microstructural properties of hydrated cement products of cement pastes were investigated in paste specimens by using a modified migration cell that was conducted with the applied current density of 4.5 $A/m^{2}$ and synthesized pore solutions used as electrolytes for 8 weeks. Three types of cement pastes were used with the water/binder ratio of 0.4; that were ordinary Portland cement, fly ash cement and blast furnace slag cement pastes. Chloride source was supplied by adding 1.5% sodium chloride. After extraction, the acid-soluble chloride content significantly reduced. Portlandite content increased proportionally with the time of extraction in ordinary Portland cement and fly ash cement pastes Furthermore, the alteration and decomposition of C-S-H were inevitable with different rates. Book Name: Concrete Repair, Rehabilitation and Retrofitting IV |
| Related Links | https://api.taylorfrancis.com/content/chapters/edit/download?identifierName=doi&identifierValue=10.1201/b18972-5&type=chapterpdf |
| Ending Page | 8 |
| Page Count | 2 |
| Starting Page | 7 |
| DOI | 10.1201/b18972-5 |
| Language | English |
| Publisher | Informa UK Limited |
| Publisher Date | 2015-09-17 |
| Access Restriction | Open |
| Subject Keyword | Book Name: Concrete Repair, Rehabilitation and Retrofitting Iv Criminology and Penology Chloride Cement Pastes Hydrated Extraction Sodium Portland |
| Content Type | Text |
| Resource Type | Chapter |
