EP 0925406 A1 19990630 - AGGREGATE FOR ROAD SURFACES
Title (en)
AGGREGATE FOR ROAD SURFACES
Title (de)
ZUSCHLAGSTOFF FÜR VERKEHRSFLÄCHEN
Title (fr)
AGREGATS POUR SURFACES DESTINEES A LA CIRCULATION
Publication
Application
Priority
- DE 9701972 W 19970904
- DE 19638743 A 19960910
Abstract (en)
[origin: WO9811301A1] An aggregate for road surfaces consists of a granulated material whose essential element is an active substance which inhibits ice formation and has the form of fine primary grains bonded by a binder. The primary grains of active substance have a maximum grain size below 0.2 mm and are treated at their surface with bitumen so that at least the finest fraction of active substance with grain sizes below 0.003 mm is completely or almost completely bonded by the bitumen into agglomerated secondary grains, the largest grains of aggregate being smaller than 0.5 mm. Also disclosed is a process for producing the aggregate and a process for incorporating the aggregate into a bitumen-bonded road surface.
IPC 1-7
IPC 8 full level
E01C 11/24 (2006.01)
CPC (source: EP)
E01C 11/245 (2013.01)
Citation (search report)
See references of WO 9811301A1
Designated contracting state (EPC)
AT BE CH DE DK FR GB IT LI NL SE
DOCDB simple family (publication)
WO 9811301 A1 19980319; AT E202813 T1 20010715; AU 4450897 A 19980402; CZ 81299 A3 19990714; DE 19638743 A1 19980312; DE 19638743 C2 19981126; DE 59703969 D1 20010809; EP 0925406 A1 19990630; EP 0925406 B1 20010704; PL 332090 A1 19990830
DOCDB simple family (application)
DE 9701972 W 19970904; AT 97942802 T 19970904; AU 4450897 A 19970904; CZ 81299 A 19970904; DE 19638743 A 19960910; DE 59703969 T 19970904; EP 97942802 A 19970904; PL 33209097 A 19970904