August 2016

Development of leucite glass-ceramics for non-metallic dental product

The objective of this study was to determine the potential of using Malaysian silica sand as the SiO2 raw material in producing leucite (SiO2-Al2O3-K2O) glass-ceramics. The crystallization, mechanical and biological properties of the glass-ceramic was studied. A starting glass composition in the system of leucite was melted in an electric furnace, quenched in deionized water and dry milled to obtain glass powder. The...

Author(s): Siti Mazatul Azwa Saiyed Mohd Nurddin and Malek Selamat

August 2016

Preliminary research on strength of polymer modified concrete with copolymer natural rubber as concrete additives

Polymer modified concrete is one of the alternative material of construction to obtain better performance in strength and durability of concrete. There are some types of PMC such as natural rubber, synthetic rubber, modified rubber and asphalt.  In this work, copolymer of natural rubber styrene and copolymer of natural rubber methacrylate were used as PMC added to Portland cement concrete and Portland Pozzolan...

Author(s): Sih Wuri Andayani, , Rochim Suratmana, Iswandi Imrana, Mardiyatia Y and Ariyadi Basukib