Strength and Flow Behavior of Rice Husk Ash Blended Cement Paste and Mortar

In this study, compressive strength and flow behavior for rice husk ash incorporated cement paste and mortar are investigated. The workability is ensured through Marsh cone and flow table tests for rice husk ash blended cement paste and mortar respectively. The test result shows that compressive strength increases with age as expected in all cases and an empirical relationship for compressive strength of blended cement paste and mortar with mix factors such as w/(c+rha) ratio, rha/c ratio and age is also proposed. The estimated compressive strength versus w/(c+rha) ratio curves follows the similar nature of Abrams’ strength versus w/c ratio curves.