Description
Cutback Bitumen Medium Curing (MC)70
Cutback Bitumen MC70 is dissolved of bitumen in solvents of kerosene. many countries derive kerosene and other volatile petroleum products and add as a cutter or cutback agent to bitumen to reduce (or cutback) the viscosity of the bitumen. Mixture obtained may be called cutback bitumen.
The reduction in viscosity of the bitumen aids the construction of seal coats in road pavements as the softened mixture wets the chips more easily.
Cutback agent also evaporates seal coat, cutback agent becoming a negligible component of seal coat a few months after application. If significant amounts of cutback agent remain in seal coat an unwanted long term softening effect may result.
Uses of Cutback Asphalt MC-70
Cutback bitumen MC70 consist of initial incorporation of asphalt into the surface of non-asphalt based course preparatory to any superimposed treatment of construction.
In addition cutback asphalt MC-70 applying to waterproofing of surfaces, plug capillary voids, coat and bond loose mineral particles.
Cutback agents are used to lower the viscosity of bitumen when it is applied as a primer to the surface of a road pavement aggregate base course or substrate. Furthermore we use Kerosene as a bitumen cutback agent at different concentrations according to local conditions and requirements.
Cutback bitumen is ideal for prime coat and cold applied. Because of its easy uses and no need to thinning and heating.
Guaranty/warranty of cutback asphalt MC-70
PUB-LTD guaranty quality of cutback MC-70 with arrangement of international inspector. By checking quality and quantity of bitumen on each shipment during loading to vessel. Also controlling the production by QC team via batch test report before shipping. PUB-LTD guaranty the quality to meet with ASTM/EN15322:2009.
Packing of Cutback Bitumen MC-70
Packing of cutback bitumen MC70 is in new thick steel drum. This drums are on pallet to prevent any leak inside of container. Also bulk in bitutainer and tanker is possible.
Analysis of Bitumen MC70
| Properties | Min | Max | Test Method | |
| Kinemalic 1 viscosity at 60°C, eSt | 70 | 140 | ASTM D2170 | |
| Flash Point (Tag Open-Cup),°C | 38 | – | ASTM D1310 | |
| Distillate test 2 : | ||||
| Distillate, percent by Volume of total 360°C | ||||
| To 190°C | – | 15 | ASTM D402 | |
| To 225°C | 20 | 60 | ASTM D402 | |
| To 260°C | 65 | 90 | ASTM D402 | |
| To 316°C | 55 | -s | ASTM D402 | |
| Residue from distillation to 360°C: | ||||
| Test on residue from distillation Penetration at 25°C,100g, 5 sec. | 50 | – | ||
| Ductility 3 at 25°C, cm | 120 | 250 | ASTM D402 / ASTM D113 | |
| Solubility in trichloroethylene, percent mass | 100 | – | ASTM D402 / ASTM D2024 | |
| Water, percent volume | – | 0.2 | ASTM D95 | |
