Steel and textile cord coating is one of the key rubber processing technologies in tiremaking industry. It is carried out on calendering lines where thickness variation across the sheet profile and downstream is very difficult to fulfill. Recent development of optoelectronics and derived sensory systems has enabled the replacement of traditional radioactive systems for measurement of calendered...

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...

Rubber is used as a vibration damper in many engineering applications, especially the automotive industry. to dampen torsional internal combustion engines. Therefore, crank pulleys are crankshaft certain frequency range. durability very important for pulley perform its duty long time. In this study, dynamic life of NR45 natural rubber with two different mixtures was determined by prepared test ...

The use of accumulated waste materials in third world countries is still in its early phases. It will take courage for contractors and others in the construction industry to recycle selected types of waste materials in the concrete mixes. This paper addresses the recycling of rubber tires accumulated every year in Jordan to be used in concrete mixes. The main objectives of this research were to...

Organic solvents are chemically different compounds with one common feature: They dissolve fats, oils, resins, cellulose, acetate, and cellulose nitrate, which makes them widely used in industry. Most often organic solvents are used in paint and lacquer industries, in production of pesticides, explosives, plastic, rubber, cellulose, air conditioners, in pharmaceutical industry, and in leather i...

OBJECTIVES To demonstrate that urine cytology screening can provide relevant epidemiological data for earlier detection of urothelial cancer caused by occupational exposure. DESIGN Prospective cohort study. SETTING Industries using urothelial carcinogens in France. Urine samples were collected on site, after a work week and were analysed at the University Hospital of Clermont-Ferrand, Franc...

The purpose of this work is to study the interaction croton fraction with amides – urea and thiourea develop technologies for obtaining accelerators vulcanization rubbers rubber industry.

Positive carcinogenicity studies in mice and rats have led to concerns that 1,3-butadiene may be carcinogenic in humans under exposure conditions that have existed in occupational settings and perhaps exist today. The principal settings of interest are the styrene-butadiene rubber (SBR) manufacturing industry, which uses large quantities of 1,3-butadiene, and the 1,3-butadiene monomer industry....