The purpose of this study is to evaluate mechanical properties of cement or lime stabilized soils in connection with their applicability to pavements.
　The following items have been clarified through laboratory tests and/or in-situ test construction.
(1) applicability of cement or lime as additive
(2) possibility of overcompaction in stabilized soils
(3)influence of submergence on strengths of stabilizedsoils
(4)strength recovery ability due to self-adhesion at the time of crack occurring
(5)correlation among strentghs such as compressive strength, benaing strength, CBR and cone index
(6) correlation between strength and modulus of elasticity
(7) reason of difference between laboratory and field strengths and the quantitative evaluation in subgrade stabilization
(8) influence of density of stabilized soils and stress level on permanent deformation due to repeated loading
(9) fatigue characteristics in repeated bending