Journal of Materials Science Research and Reviews http://journaljmsrr.com/index.php/JMSRR <p style="text-align: justify;"><strong>Journal of Materials Science Research and Reviews</strong> aims to publish high-quality papers in all areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, all engineering materials, nanostructured materials, nanocomposites, and biological and biomedical materials. The journal also encourages the submission of useful reports of negative results. This is a quality controlled, OPEN peer-reviewed, open access INTERNATIONAL journal.</p> en-US contact@journaljmsrr.com (Journal of Materials Science Research and Reviews) contact@journaljmsrr.com (Journal of Materials Science Research and Reviews) Fri, 04 Oct 2019 07:33:27 +0000 OJS 3.1.1.4 http://blogs.law.harvard.edu/tech/rss 60 Dimensional Stability of Cement Bonded Boards Produced from Thaumatococus danielli Stalk http://journaljmsrr.com/index.php/JMSRR/article/view/30108 <p>Cement bonded boards 6 mm thick were produced using <em>Thaumatococcus daniellii </em>stalk. <em>Thaumatococcus daniellii </em>and cement were mixed together at two different mixing ratios and three board densities of 2.5:1 and 3:1 and 500, 600 and 700 g/cm<sup>3</sup>, respectively. After 24 h of cold-water immersion, the mean water absorption of the cement bonded board ranged from 22.9 to 48.5% for (cement/stalk) mixing ratio of 3:1 and 2.5:1 with board density 700 and 500 g/m<sup>3 </sup>respectively. Cement bonded board produced from the highest levels of cement: stalk ratio (3:1) and board density (700 g/cm<sup>3</sup>) were dimensional more stable as they had the lowest value for water absorption. The least dimensionally stable boards were produced from the mixing ratio cement: stalk ratio (2.5:1) and board density (500 g/m<sup>3</sup>). The mean values obtained for thickness swelling (TS) after 24 hours of cold-water immersion ranged from 0.19 to 0.74%. Result shows that the higher the increase in mixing ratio of cements to fibre (3:1) and board density (700 g/cm<sup>3</sup>) caused decrease in thickness swelling and water absorption. From this study, <em>Thaumatococcus daniellii </em>stalk proved to be suitable for the production of cement–bonded board.</p> E. A. Adelusi, S. A. Adedokun, F. T. Adelusi ##submission.copyrightStatement## http://journaljmsrr.com/index.php/JMSRR/article/view/30108 Fri, 04 Oct 2019 00:00:00 +0000