Preparation of porous brick from diatomite and sugar filter mud at lower temperature

Products of porous bricks from low grade diatomite and sugar filter mud (SFM) in different proportion between 0 and 30 wt% were fabricated at sintering temperatures ranging from 700 to 900 degrees C. Effect on physical and mechanical properties of sinterring temperature and adding proportion of sugar filter mud were investigated. Physical and mechanical properties of samples were determined by DSC-TG thermal analysis, XRD, SEM and universal testing machine. The samples of porous bricks after sintering have acceptable performance parameters. The best combination of mechanical and physical properties is achieved for a mixture of 70 wt% diatomite, 20 wt% SFM with the additions of 6 wt% dolomite and 4 wt% sodium perborate sintering at 800 degrees C. The apparent porosity was 50.39%, bulk density was 1.25 g/cm(3), the flexural strength was 10.05 MPa. (C) 2017 Published by Elsevier Ltd.