The influence of mineral admixtures on bending strength of mortar on the premise of equal compressive strength |
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Authors: | Qiang Wang Peiyu Yan Jianwen Feng |
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Affiliation: | 1. Department of Civil Engineering, Tsinghua University, Beijing, 100084, China 2. Department of Engineering, Swansea University, Swansea, SA2 8PP, UK
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Abstract: | The influence of mineral admixtures on bending strength of mortar on the premise of equal compressive strength was investigated. Three mineral admixtures (fly ash, ground granulated blast-furnace slag and steel slag) were used. The adding amount of mineral admixture in this study ranges from 22.5% to 60%, and the water-to-binder ratio ranges from 0.34 to 0.50. With equal compressive strength, different mortars can be arranged in such a descending order with their bending strength: cement-fly ash mortar, cement mortar, cement-GGBS mortar, and cement-steel slag mortar. With the same compressive strength, the higher the steel slag content and water-to-binder ratio, the lower the bending strength of mortars. However, the effect of mineral mixture content and water-to-binder ratio on the bending strength of cement-fly ash mortar and cement-GGBS mortar is far inconspicuous. |
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Keywords: | mineral admixtures bending strength compressive strength |
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