Product Specifications ( as per IS:15462:2004) Properties of tiki polymer and rubber modified bitumen |
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Designation | Elastomeric Thermoplastic Based |
Crumb Rubber Modified Binders |
Method of tests |
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PMB 120 |
PMB 70 |
PMB 40 |
CRMB 50 |
CRMB 55 |
CRMB 60 |
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Penetration, at 25°C, 100g, 5 sec, in 1/100cm | 90 to 150 | 50 to 90 | 30 to 50 | < 70 | < 60 | < 50 | IS: 1203-1978 |
Softening poing, (R&B), °C, Minimum | 50 | 55 | 60 | 50 | 55 | 60 | IS: 1205-1978 |
Frass Breaking Point, °C, Maximum | -20 | -16 | -12 | – | – | – | IS: 9381-1978 |
Flash Point by COC, °C, Minimum | 220 | 220 | 220 | 220 | 220 | 220 | IS: 1448(P-69) |
Elastic Recovery of Half Thread in Ductilometer at 15°C, %, Minimum | 70 | 70 | 70 | 50 | 50 | 50 | IS: 15462 Annex A |
Seprtation Difference in Softening Point (R&B), °C,Maximum | 3 | 3 | 3 | 4 | 4 | 4 | IS: 15462 Annex B |
Viscosity at 150°C , Poise | 1-3 | 2-6 | 3-9 | 1-3 | 2-6 | 3-9 | IS: 1206 (P-I) |
This Film Oven Test (TFOT) on Residue (IS:9382-1992) | |||||||
Loss in Mass % Maximum | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | 1.0 | IS: 9382-1992 |
Increase in softening point (R&B) °C Maximum | 7 | 6 | 5 | 7 | 6 | 5 | IS: 1205 |
Reduction in Penetration of Residue at 25°C % Maximum | 35 | 35 | 35 | 40 | 40 | 40 | IS: 1203 |
Elastic Recovery of Half thread in Ductilometer at 25°C % Min | 50 | 50 | 50 | 35 | 35 | 35 | IS: 15462 Annex A |