Compressive Strength, Chloride Diffusivity and Pore Structure of Non-Autoclaved Prestressed High-Strength Concrete with Metakaolin
| Periodical | Advanced Materials Research (Volumes 450 - 451) |
|---|---|
| Main Theme | Trends in Building Materials Research |
| Edited by | Jianjun Zheng, Xiuli Du, Weiming Yan, Yue Li and Jianwei Zhang |
| Pages | 1409-1414 |
| DOI | 10.4028/www.scientific.net/AMR.450-451.1409 |
| Citation | Jun Jie Zeng et al., 2012, Advanced Materials Research, 450-451, 1409 |
| Online since | January, 2012 |
| Authors | Jun Jie Zeng, Zhong He Shui, Wan Ru Zhang, Zheng Leng |
| Keywords | Metakaolin, Prestressed High-Strength Concrete, Slag, Steam Curing |
| Price | US$ 28,- |
The experimental study was performed on the relationship between the mechanical and durability properties of high-strength concrete with metakaolin (MK) and slag. The compressive strength, chloride penetrability and pore structure of the OPC and the concrete with MK and slag were measured. It is found that MK can significantly increase the compressive strength, decrease the chloride ions migration coefficient and improve the pore structure of the steam cured high-strength concrete. The chloride resistance is improved obviously by 5% MK and further increase of the MK dosage performs a little change of the chloride migration coefficient. Better improvement effect on the mechanical and durability properties is obtained with the incorporation of 10% MK and 10% slag. Linear relationship is found between the coarse pore porosity and the compressive strength, while the chloride migration coefficient correlates well with the capillary pore volume.