Investigation of Physical Properties of Locally (Rajshahi, Bangladesh) Available Clay

All over the world metallic material is running out and their processing cost increasing day by day. This problem can be solved easily by using ceramic materials as a substitute of metallic materials. In ceramic sector clay is an abundant source for developing different materials. From the point of view in this research physical properties of clays were investigated. The clay samples were collected from different places of Rajshahi city of Bangladesh. Basic properties of clays like moisture content, impurities content, plasticity, drying weight loss, drying shrinkage, firing weight loss, firing shrinkage, water absorption of fired clay body etc. properties are determined preciously. The remarkable grit content, drying weight loss & drying shrinkage, firing shrinkage and plasticity index were determined as 1.8%, 3.35% & 2.82%, 1.61% and 3.64 respectively. For determining plasticity prefer corn plasticity tester was used. To determine the weight loss micro gram weight balance was used and digital slide calipers were used for calculating length and thickness. As like as physical test XRD analysis was carried out for determining the structural analysis. Mainly cubic and hexagonal phases are found and dominating planes were (011), (110) and (101) was determined. And crystalline size was 284.2 Armstrong.