BLOWN ASPHALT FOR WATERPROOFING WORK AND METHOD FOR PRODUCING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide blown asphalt pertinent to waterproofing work excellent in workability and storability, by suppressing odor and smoke arising at heating and melting the blown asphalt for waterproofing work at a high temperature.;SOLUTION: This blown asphalt for waterproofing work is characterized by having a softening point of 100-120°C, a needle penetration degree of 25-35, oil exudation of ≤3, folding resistance at a low temperature of ≤1°C, a temperature at which viscosity becomes 100 mPa×s of ≤220°C, and a temperature at which viscosity becomes 60 mPa×s of ≤240°C.;COPYRIGHT: (C)2006,JPO&NCIPI