Application of biochar alters availability of nutrients and acidic cations in soils which in turn could affect growth of plant to different degrees. Effect of rubber wood biochar amendment on the growth and nutritional status of Hevea nursery plants was determined in this study. Biochar were applied at 1% and 2% (w/w) with and without the recommended rates of N and Mg liquid fertilizers (LF). T...

The aims of this work were to determine the color change and physical–mechanical properties polystyrene glulam from three tropical wood species. Wood laminas cut logs harvested a young plantation forest manii (Maesopsis eminii), mangium (Acacia mangium), rubber-wood (Hevea brasiliensis). impregnated with monomer styrene that was polymerized using potassium peroxy-disulfate as catalyst heat. Thr...

The smoke chamber used has a capacity of 3,420 kg with rubber sheet smoking period five days. Reducing the water content (moisture content) on is by heating it system. For operations, fumigation temperature first day 40 - 45°C, second 45 50°C, third 50 55°C, fourth 55 60°C, and fifth was maintained at 60°C. FDF IDF are two air distribution devices, where functions to blow into draws chamber. ba...

in this study an empirical model which can be used to predict the rutting parameter (g*/sinδ) for neat and powder rubber modified bitumen describes. the model was developed using 36 unique powder rubber modified bitumen combinations, rubber concentrations were varied at 5% intervals between 5 and 20%. the effects of powder rubber particle size on model accuracy were also studied ultimately a mo...

Biomass is an important source of renewable energy in Thailand and currently is the second major energy sources in the country, especially for households and small industries in rural area. It provides basic energy requirement for cooking and process heating in residential and manufacturing sectors as well as for processing in traditional industries. Four major sources of biomass in Thailand ar...