Storage stable emulsions from low penetration grade bituminous binders

摘要

The present invention relates to emulsions comprising a (1→3)-β-D-glucan, a cationic emulsifier and a bituminous binder having a low penetration. The emulsion is storage stable while fast breaking, even under unfavorable environmental conditions such as high humidity and low temperature. The emulsions can conveniently be used in chip less surface dressings, trackless tack coating compositions, water-proofing compositions, flooring applications, bonding layers, impregnation layers, dense coated materials and semi-dense coated materials which are cold-cast or storable, slurry seals, micro-surfacing compositions and mortars.

主权项

1. An emulsion, comprising:
about 0.0005 wt % to about 0.1 wt % of a non-modified scleroglucan, based on the total weight of the emulsion; a cationic emulsifier; and a bituminous binder having a penetration of less than 70 10−1 mm, as determined according to ASTM D5-97, wherein the emulsion has a breaking index of 150 or less at 25° C., as determined according to NEN-EN 13075-1, wherein the emulsion has a C-factor of 200 or less, wherein the C-factor is defined as:
C-factor=penetration of recovered binder×(100×storage stability)3.5,wherein the penetration of recovered binder is determined according to ASTM D5-97, andwherein the storage stability is determined according to NEN-EN 12847.