Properties of magnesium phosphate cement containing steel slag powder
| Autor: | Bing Chen, Yu Jiang, Muhammad Riaz Ahmad |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Magnesium phosphate
Cement Materials science Magnesium 0211 other engineering and technologies food and beverages chemistry.chemical_element 020101 civil engineering 02 engineering and technology Building and Construction Phosphate Microstructure 0201 civil engineering chemistry.chemical_compound chemistry Chemical engineering immune system diseases Struvite visual_art 021105 building & construction visual_art.visual_art_medium General Materials Science Ceramic Mortar Civil and Structural Engineering |
| Zdroj: | Construction and Building Materials. 195:140-147 |
| ISSN: | 0950-0618 |
| Popis: | Magnesium phosphate cement (MPC) belongs to the family of chemically bonded phosphate ceramics and exhibits certain outstanding qualities. The current study investigated the effects of steel slag powder (SSP) on the properties of MPC mortar. MPC mortar specimens with different content of SSP were prepared and their workability, mechanical properties and water resistance were tested. Moreover, microstructure and phase composition of MPC paste were examined by Scanning Electronic Microscopic (SEM) and X-ray diffraction (XRD) techniques. It was found that the incorporation of SSP can promote early hydration rate. A significant improvement in the later stage mechanical strength was observed but early strength was reduced. Water resistance of MPC mortar specimens was improved by increasing the percentage of SSP from 0% to 30%. Finally, XRD and SEM analysis of MPC pastes corroborated with the mechanical strength results and confirmed the formation of secondary reaction products along with the main hydration products struvite and residual magnesia. |
| Databáze: | OpenAIRE |
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