Open AccessEVALUATION OF WATER HYACINTH STEM ASH AS POZZOLANIC MATERIAL FOR USE IN BLENDED CEMENT
Author(s) -
Neelu Das,
Shashikant Singh
Publication year - 2016
Publication title -
journal of civil engineering, science and technology
Language(s) - English
Resource type - Journals
ISSN - 2462-1382
DOI - 10.33736/jcest.150.2016
Subject(s) - portland cement , compressive strength , materials science , pozzolan , pozzolanic activity , composite material , absorption of water , cement , mortar
In this paper, the potential use of water hyacinth stem ash (WHA) in the partial replacement of cement is studied. WHA was used as a replacement for ordinary Portland cement at 10, 15, 20 and 25 wt. %. To evaluate the pozzolanic activity of WHA, the properties investigated were chemical composition, particle size, soundness, setting time, specific gravity, presence of crystalline matter, compressive strength, water absorption and sorption. Mortar cubes were tested for compressive strength up to the age of 56 days, whereas water absorption and sorption tests are carried out at the age of 28 days. Test results reveal that mortar cubes with 10% WHA substitution for Portland cement produced comparative compressive strength values to control mortar. It was also observed that the use of WHA in Portland cement has reduced water absorption characteristics.