· 2000 to bitumen is to reduce the vis- cosity and also to improve ductility at low temperatures....

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Page 1:  · 2000 to bitumen is to reduce the vis- cosity and also to improve ductility at low temperatures. However, the viscosity is increased at high tem- peratures in the range 30-80'C
Page 2:  · 2000 to bitumen is to reduce the vis- cosity and also to improve ductility at low temperatures. However, the viscosity is increased at high tem- peratures in the range 30-80'C
Page 3:  · 2000 to bitumen is to reduce the vis- cosity and also to improve ductility at low temperatures. However, the viscosity is increased at high tem- peratures in the range 30-80'C
Page 4:  · 2000 to bitumen is to reduce the vis- cosity and also to improve ductility at low temperatures. However, the viscosity is increased at high tem- peratures in the range 30-80'C
Page 5:  · 2000 to bitumen is to reduce the vis- cosity and also to improve ductility at low temperatures. However, the viscosity is increased at high tem- peratures in the range 30-80'C