menu

+370 520 78 573

info[at]norteda.eu

Roof Bitumen

The mechanical properties, given by bitumen make an ideal waterproofing contribution to roof constructions, as well as to their ability to withstand significant structural movements.  Bitumen is known as a material, which retains properties over long periods, so it significantly contributes to a structure's durability and longevity.

 

Roofing oil asphalt is used in production of roofing materials. It is produced at Bitumen Unit vie continuous oxidation of black-oil vacuum distillation bottoms with atmospheric oxygen.

MAIN TECHNICAL PARAMETERS

DESCRIPTION

TYPES

GOST 9548-74

BNK 40/180

BNK 45/190

Needle penetration depth at 25°C, 0,1 mm

160-210

160-220

Melting point, °C

37-44

40-50

Solubility in benzene and chloroform, % min.

99,50

99,50

Weight alteration after heating, % max.

0,80

0,80

Needle penetration depth at 25°C in residue after heating, % of initial value, min.

60

60