1. Use of rubber tires in highway construction;Ahmed,1992
2. Test method for laboratory compaction characteristics of soil using modified effort;ASTM D1557-78,1978
3. Standard test method for splitting tensile strength of cylindrical concrete specimens;ASTM C496-96,1996
4. Standard test methods for unconfined compressive strength for soils;ASTM D2166-98,1998
5. Standard test methods for particle size distribution of soils;ASTM D6913-04,2004