FUNDAMENTAL STUDY ON MECHANICAL PROPERTIES OF CEMENT-ASPHALT EMULSION MIXTURES.

This paper describes mechanical properties of cement-asphalt emulsion mixtures which have been developed recently as base materials for pavement construction. Specimens having various proportions of portland cement and asphalt emulsion content are made and examined through shrinkage strain measurement. Marshall test, unconfined compression test, stress relaxation test, bending test and freezing-thawing test. Experimental results show that compressive strength of the mixture is mainly controlled by cement content, but bending stress is largely influenced by asphalt emulsion content especially at low temperature and under high rate of deformation. Some advantages of using cement and asphalt emulsion in the same mixture are also discussed and compared with cement mixtures and asphalt emulsion mixtures.