INVESTIGATION OF POSSIBILITY PRODUCTION OF POZZOLANA FOR MARKETING CAPACITY IN ADAMAWA STATE; FOCUSING ON SOURCE AND AVAILABILITY OF RAW MATERIALS
The increasing cost and scarcity of Portland cement and its cost has impacted negatively on the delivery of affordable housing and infrastructural development in developing countries like Nigeria. This study aimed at investigation of possibility production of pozzolana to marketing capacity in Nigeria, Adamawa State Yola North local government using RH as raw materials. Reconnaissance survey was conducted across the research areas, Yola-North LG to validate availability of RH. Some dumping sites was found capable of producing the required quantity for even medium scale. 10 bags of Polythene bags weighing about 5kgs with RH were collected for processing. A brick oven to resist high temperature was constructed for burning process of the materials. Concrete cubes measuring 150x150x150mm were made from six different concrete mixes prepared using pozzolana replacement of Portland cement by mass. The workabilities of the fresh concrete mixes were evaluated using the slump test and compacting factor test while compressive strengths of concrete cubes were evaluated at 7, 14, 21 and 28 days. The maximum compressive strength at all ages of testing was obtained at 30% replacement, corresponding to an increase of 3%,12%,24% and 19% compared to the 7-day, 14-day, 21-day and 28-day compressive strengths. Workability decreased with an increase in replacement percentage. Pozzolana therefore is recommended to be used to partially replace ordinary Portland cement in the production of concrete without compromising strength. From this study it was ascertained that the production of pozzolana to marketing capacity in Nigerian is possible.
Authors : Zaria, C. and Danboyi, G.
Category : Open Access Volume (Issue) : 10(2) Date Uploaded : 7th July 2024