Useful lifetime evaluation of chevron rubber spring was very important in design procedure to assure the safety and reliability. It is, therefore, necessary to establish a suitable criterion for the replacement period of chevron rubber spring. In this study, we performed characteristic analysis and useful lifetime prediction of chevron rubber spring. Rubber material coefficient was obtained by ...

Ground tire rubber (GTR) usage in asphalt pavement with the dry process has gained more prominence recent times. The objective of this work is to investigate performance GTR-modified and polymer-modified on heavy volume traffic conditions Michigan's wet freeze environment. A suite laboratory tests was done evaluate mixtures. To reveal strain stress relationship under different frequencies tempe...

Natural rubber (cis-1,4-polyisoprene) is an isoprenoid compound produced exclusively in plants by the action of rubber transferase. Despite a keen interest in revealing the mechanisms of rubber chain elongation and chain length determination, the molecular nature of rubber transferase has not yet been identified. A recent report has revealed that a 24 kDa protein tightly associated with the sma...

Rubber is the most widespread smallholder tree crop in South-East Asia. Although initially large estates planted the bulk of the region’s rubber, smallholders soon captured most of the production. Currently, Indonesia’s rubber plantations cover 3.4 million ha, of which smallholders account for more than 75% (BPS, 1999). In peninsular Malaysia, the area in rubber has declined since the 1970s, bu...

Abstract We present the results of forced-vibration experiments performed at large-scale prototype structure EuroProteas founded on gravel-rubber mixture (GRM) layers acting as a means Geotechnical Seismic Isolation (GSI). Three GRM with different rubber content per weight (0%, 10%, and 30%) but same mean grain size ratio were used foundation soil. Each GRM-structure system was subjected to har...

Abstract Preserving natural resources and implementing the concepts of sustainable engineering to approach zero waste concept helped in reducing detrimental environmental effects last two-decade. Proposed re-using Ground Granulated Blast Furnace Slag (GGBS) as an alternate solution is get rid them profit from concurrently. In this process, GGBS used cement substitute material enhance mortar cha...

This paper presents an experimental investigation of the mechanical properties rubberised concrete confined with basalt-fibre textile-reinforced mortar (TRM) jackets. The main aim is to evaluate effectiveness TRM confinement scheme on cylindrical specimens by examining five different mixtures (rubber content ranging from 10.5% up 42% total aggregate volume), including a plain reference mixture....

Rubber dams are inflatable and deflatable hydraulic structures. Thousands of rubber dams have been installed worldwide for various purposes: irrigation, water supply, power generation, tidal barrier, flood control, environmental improvement, and recreation. Furthermore, rubber dams have been used in cold areas where the temperature is as low as –40°C. The simplicity and flexibility of the rubbe...

Abstract In Malaysia, road pavements are frequently damaged by the accumulation of water on surface caused heavy rain, due to humid climate. The presence within asphaltic concrete mixture particles may impede their workability. Exposure towards natural phenomenon such as rain can be main cause related inside asphalt pavements. To improve conditions for users, it is necessary consider alternativ...

Rubber dam is considered an ideal device for tooth isolation. Nevertheless, its usage is quite rare in the Czech Republic. The aim of this study was: firstly, to gather and evaluate information regarding the use of rubber dam by dentists in the Czech Republic and to compare it with other countries; secondly to find out whether there are any influencing factors as to rubber dam usage; and finall...