oa Civil Engineering = Siviele Ingenieurswese - Materials for roads - recent developments and new problems
The paper refers first to the developments in soil stabilisation procedures like the use of chemical additives in cement stabilisation and the use of resins in soil waterproofing. The problems of providing good quality crushed stone for bituminous surfacing work and the possibilities of drawing up a national specification for crushed stone are then discussed. The paper ends with reference to trends in bituminous binders - the use of bitumens from Middle East sources with their attendant problems, rubberised bitumens, and the recently developed cationic emulsions.
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