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...

Abstract The study aimed to determine the physical, chemical, organoleptic characteristics and safety of rubber seeds ( Hevea brasiliensis ) which were processed into gulai, kalio, rendang. This research used a descriptive exploratory method differences in seeds’ properties. treatments this processing gulai with cooking time 1 hour, kalio 2 hours, rendang 3 hours. Physical analysis showed highe...

in this article the transient heat transfer in rubber parts has been studied. this study is usefull for estimation of the minimum curing time of the rubber parts and thereby to ensure the quality of the rubber. also is the temperature distribution during the rubber curing is well know, then the curing time could accurately be estimated, which will lead to a better curing process. in this regard...

The experiment was to study the effects of replacing soybean meal by rubber seed meal on growth, economics and carcass characteristics of broiler. A total of 150 day-old commercial broiler (Cobb-500) was reared for a period of 35 days. There were five treatments including T0 (without rubber seed meal), T1 (10% rubber seed meal), T2 (20% rubber seed meal), and T3 (30% rubber seed meal) and T4 (4...

The formulation of an oil-based mud was made possible with the oil extracted from rubber seeds using famous soxhlet extraction method. formulated API standard 25 g bentonite to 350 mL base fluid. choice Rubber comes as a result its flash point and aniline which lies in range oils used for formulation. rheological properties OBM were beyond scope viscometer hence thinner added reduce viscosity s...

Nutmeg (Myristica fragans Houtt) is one of the plantation crops that has high economic value in addition to cloves, rubber, coffee, tea and cocoa. To get good plant growth, quality seeds are needed seeds, sufficient nutrients for growth roots, stems leaves. Planting media nurseries must be so produced also quality, planting using sago ela compost young coconut water as a regulator. This study a...

The rubber-producing tree, Ficus elastica (the Indian rubber tree), requires the same substrates for rubber production as other rubber-producing plants, such as Hevea brasiliensis (the Brazilian or Para rubber tree), the major source of commercial natural rubber in the world, and Parthenium argentatum (guayule), a widely studied alternative for natural rubber production currently under commerci...

Effect of different fillers on natural rubber compounds was investigated through curing, mechanical properties and morphology studies for improving mechanical performance of rubber articles. In this work, natural rubber blends with Silica as Single-filler compounds, and blends with Silica and Carbon black as Bi-filler compounds were considered. Then, natural rubber blends with Silica, Carbon bl...

in some special cases, rubber compounds with high amounts of unsaturated elastomer are recommended with organic sulfur donors instead of mineral sulfurs. in this condition, activated sulfur is produced in situ and curingprocess is facilitated without accelerators. organic sulfur donor compounds have low thermal stability and in the vulcanization temperature produce free and activated sulfurs. t...