This part of BS 434 provides recommendations and guidance on the
general usage of cationic bituminous emulsions on roads and other
paved areas. The emulsions covered conform to BS 434-1, or
BS EN 13808 (modified and non-modified), or are proprietary emulsions.
This British Standard provides guidance on where the various processes using bituminous emulsions are suitable for use and indicates where suitable design procedures may be found. Advice is also given on those situations in which the processes are unsuitable or marginally suitable.
Where there is an option, performance or outcome specifications have
been used rather than input or recipe specifications. This follows the general approach adopted for European Standards and the general
move towards performance specifications by many specifiers.
Anionic emulsions are covered only for exceptional circumstances.
Cationic emulsions have been specified for most purposes, although in
some cases an anionic alternative may be used.
BS 434-2:2006 Referenced Document
BS 3136-2 Specification for Cold emulsion spraying machines for roads — Part 2 : Metric units
BS 434-2:2006 history
0000 BS 434-2:2006(2012)
2006BS 434-2:2006 Bitumen road emulsions - Code of practice for the use of cationic bitumen emulsions on roads and other paved areas
1984BS 434-2:1984 Bitumen road emulsions (anionic and cationic) - Code of practice for use of bitumen road emulsions