Rapid Curing (RC) asphalt cement is a combination of light diluents of high volatility, generally in the gasoline or naphtha boiling point range (RC-30, RC-70, RC-250, RC-800 and RC-3000), and asphalt cement. RC is a petrochemical mixture of solvent as naphtha or gasoline and bitumen.
The degree of liquidity developed in each case depends principally on the proportion of solvent to asphalt cement. To a minor degree, the liquidity of the cutback may be affected by the hardness of the base asphalt from which the cutback is made. The degree of fluidity results in several Grades of Cutback asphalt—some quite fluid at ordinary temperatures and others somewhat more viscous. The more viscous grades may require a small amount of heating to make them fluid enough for construction operations.
Asphalt cement has different degrees of fluidity depending on the proportion of the solvent. When cutbacks are made from hard base asphalt, liquidity may be impacted to a minor degree. It is used for the prime coats. Rapid curing cutback grades are designed to react quickly and are primarily used in spray applications such as bond/tack coats, aggregate chips seals, sand seals, granular priming and similar surface treatments.
Pavement design involves the use of it. The bond and tack coats react quickly when sprayed on. Sealing aggregate chips and sand seals is useful. Asphaltes with rapid curing are primarily used as surface treatments.
Cut back asphalt RC 800 can be used to waterproof surfaces and plug capillary voids. In roadway pavements, grade RC250 serves as a seal coat.
A cut-back asphalt is usually subjected to two types of tests: 1) residue and 2) cutback. Testing residues involves examining penetration, ductility, and solubility. The testing of cutback bitumen includes the distillation, viscosity and flash point tests.
It is primarily determined by the ratio of solvent to asphalt cement in each case how much liquid forms. Depending on the hardness of the base asphalt from which the cutback is made, the liquidity of the cutback may be affected to a minor extent. Different degrees of fluidity result in different grades of cutback asphalt - some quite fluid at ordinary temperatures and others somewhat more viscous. The more viscous grades may require a small amount of heating to make them fluid enough for construction operations.
Rapid Curing Cutback Bitumen Applications
RC Cutback bitumen are typically used as prime coats and tack coats. Generally Cutback Bitumen are divided into three groups depending on their volatility of the solvent added. The rapid-setting grades are designed to react quickly primarily for spray applications, such as bond/tack coats, aggregate chips seals, sand seals and similar surface treatments.
RC cutback bitumen uses
- When bitumen is applied as a primer to the surface of a road pavement aggregate base course or substrate, cutback agents are used to lower its viscosity. At different concentrations, kerosene is used as a bitumen cutback agent.
- Cutback bitumen is ideal for prime coat and cold application since it is easy to use and doesn't require thinning or heating.
- RC cutback bitumen consists of the initial addition of asphalt to the surface of non-asphalt based course, prior to any superimposed treatment.
- A cutback asphalt RC is applied to waterproof surfaces, plug capillary voids, and coat and bond loose mineral particles.
RC cutback bitumen packing
Usually available in
- Bulk as IBC Tank, Flexi Tank
- Reconditioned steel drums 220 lit., Net Weight: 191 ± 3 Kg
- New steel drums 220 lit., Net Weight: 191 ± 3 Kg
