redwood viscometer

Redwood Viscometer

saybolt viscometer electrically heated

Saybolt Viscometer

cleveland flash open fire point apparatus

Cleveland Flash(Open) & Fire Point Apparatus

Abel Flash Point Apparatus

pensky martens flash point

Pensky Martens Flash Point (Closed) Tester

Conradson Carbon Residue Apparatus

Cloud and Pour Point Apparatus

Smoke Point Apparatus

Drop point of Grease Apparatus

standard penetrometer

Standard Penetrometer

standard tar viscometer electrically heated

Standard Tar Viscometer

ring and ball apparatus

Ring and Ball Apparatus

marshall apparatus electrically operated

Marshall Apparatus

automatic bituminous compactor

Automatic Bituminous Compactor

centrifuge extractor hand operated

Centrifuge Extractor

ductility testing machine

Ductility Testing Machine

hardness tester for mastic asphalt

Hardness Tester for Mastic Asphalt

Film Stripping Device

benkelman beam

Benkelman Beam


Road Construction and pavement making go hand in hand with civil, rural and urban development. Bitumen is a petroleum product, obtained from crude oil, is an important binder material having good thermoplastic and load bearing properties. It is easy to melt and use and therefore used in the application of pavement and reads. Asphalt is another name used for Bitumen. It is commpnly mixed with concrete to form asphalt-concrete used in the making of pavements, embankments, and roads.

It enables the laying of long  seamless roads without any joints.

The physical properties necessary for road are friction, load bearing capacity, elasticity, and easy formability. The formability has relation with flowability and hence, viscosity.

Bitumen samples are mainly obtained from the lower portion of heated tanks, using a sampling tube. Sampling may be carried out at the plant where asphalt is being manufactured, or  at the site of construction.

The tests commonly carried out are: Softening point,  Viscosity, flash point, carbon-residue, elastic recovery, Breaking value, moisture content, Penetration, tensile, cohesion, ductility, density, hardness, weight,

Marshall Apparatus is generally used for measurement of resistance to plastic flow. Ageing or fatigue test is also carried out on this material.

Laboratories across the world are actively researching this material to address the issues or problems encountered depending on geographies.