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Relation between Porosity and Compressive Strength of Slag Concrete
This research aims to investigate the pore structures characteristics of slag concrete and its correlation with the compressive strength. In the study, three water/binder ratios (0.35, 0.50, 0.70) and three substitute ratios of cement with slag (10%, 20%, 40%) were selected for preparing concrete specimens. The specimens were tested at five ages (1–56 days) for compressive strength and MIP porosity measurement. Test results show that the larger the water/binder is, the more the total pore volume and capillary pore volume of slag concrete will be. At early ages, the pore volume of slag concrete is greater than that of plain concrete, while at later ages, the pore volume of slag concrete will decrease gradually, and the larger the slag substitute ratio is, the less the pore volume will be. Moreover, the compressive strength of slag concrete has a close correlation with both the total pore volume and capillary pore volume (0.01μm∼10μm), in which a closer correlation stands for the bigger capillary pore volume (0.1μm∼10μm). Therefore, using the bigger capillary pore volume to predict the compressive strength of slag concrete can reach to an optimum result.
Relation between Porosity and Compressive Strength of Slag Concrete
This research aims to investigate the pore structures characteristics of slag concrete and its correlation with the compressive strength. In the study, three water/binder ratios (0.35, 0.50, 0.70) and three substitute ratios of cement with slag (10%, 20%, 40%) were selected for preparing concrete specimens. The specimens were tested at five ages (1–56 days) for compressive strength and MIP porosity measurement. Test results show that the larger the water/binder is, the more the total pore volume and capillary pore volume of slag concrete will be. At early ages, the pore volume of slag concrete is greater than that of plain concrete, while at later ages, the pore volume of slag concrete will decrease gradually, and the larger the slag substitute ratio is, the less the pore volume will be. Moreover, the compressive strength of slag concrete has a close correlation with both the total pore volume and capillary pore volume (0.01μm∼10μm), in which a closer correlation stands for the bigger capillary pore volume (0.1μm∼10μm). Therefore, using the bigger capillary pore volume to predict the compressive strength of slag concrete can reach to an optimum result.
Relation between Porosity and Compressive Strength of Slag Concrete
Cheng, An-Shun (author) / Yen, Tsong (author) / Liu, Yu-Wen (author) / Sheen, Yeong-Nain (author)
Structures Congress 2008 ; 2008 ; Vancouver, British Columbia, Canada
Structures Congress 2008 ; 1-8
2008-10-14
Conference paper
Electronic Resource
English
Relation between Porosity and Compressive Strength of Slag Concrete
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