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Petrochemical

Bitumen / Cutback Bitumen

BITUMEN

Bitu­men is a com­mon binder used in road con­struc­tion It is prin­ci­pal­ly obtained as a resid­ual prod­uct in petro­le­um refiner­ies after high­er frac­tions like gas, petrol, kerosene and diesel, etc are removed. Indi­an Stan­dard Insti­tu­tion defines Bitu­men as a black or dark brown non-crys­talline soil or vis­cous mate­r­i­al hav­ing adhe­sive prop­er­ties derived from petro­le­um crude either by nat­ur­al or by refin­ery process­es.

Grades – 60/70 & 80/100

 

CUTBACK BITUMEN

Cut­back Bitu­men (Liq­uid Bitu­men) is Bitu­men that is dis­solved in a sol­vent. Typ­i­cal sol­vents include Naph­tha, gaso­line and kerosene, white spir­it etc. The type of sol­vent con­trols the cur­ing time while the amount deter­mines the vis­cos­i­ty of the Cut­back Bitu­men.
Grades – MC 30
(Dif­fer­ent grades can be arranged as per require­ments)

 

Application

Cut­back bitumen’s suit­able for primer seal­ing can also be used in the man­u­fac­ture of pre-mix asphalt, which is used in patch repairs. Cut­back bitumen’s are used exten­sive­ly in sprayed seal­ing appli­ca­tions, par­tic­u­lar­ly in cool­er weath­er where they pro­vide improved ini­tial stone reten­tion due to their low­er vis­cos­i­ty. Typ­i­cal­ly, a sin­gle appli­ca­tion of the appro­pri­ate cut­back bitu­men is sprayed onto the primed pave­ment onto which aggre­gate is laid.

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