Abstract :
The objective of this research study is to find the relation between dry densities achieved with variation of fines content. The method of choice in the determination of themaximum dry density from different soils was the Standard Proctor Test following the procedure for the standard Proctor test as is explained in ASTM Test Designation D-698. Several laboratory tests on material obtained from TikaBhairab quarry and Bhim Phedi quarry have been conducted. The laboratory test includes sieve analysis of fines and aggregate mix, index properties of fine, compaction of aggregate mix and soaked CBR test. From the test results analysis were carried out to find the correlation between CBR with fine content using Statistical Package for Social Sciences (SPSS) V 20 software.From this investigation, the maximum dry density of two types of aggregate was obtained, the aggregate mix were classified by using the Unified Soil Classification System. The influence on the maximum dry density of the type of aggregate, type of fines, amount of fines and distribution of the grain size was determined, followed by a sensitivity analysis that measured the influence of these parameters on the obtained maximum dry density. For sub-base material obtained from Tikabhairab, best compaction is achieved at 15% fine content. This paper focuses on the samples retrieved from the selected quarries furthermore it is recommended to carry out this research with a large number of samples including geographical areas in Nepal which are not covered by this research.
Keyword :
Unified Soil Classification, Dry Density, Aggregate Types, Fines