Abstract:
Geotechnical exploration is the fundamental part of every construction project Our study area lies at Sarai Saleh which is the segment of the E-35 Expressway. The study objectives consist of evaluating the engineering properties of earth materials which are exposed in the study area and can be a good resource for road construction for the Expressway package 3 in Haripur. Hazara District. During field investigation, different test pits were excavated as per the project's specification along the proposed road alignment In-situ compaction was determined by using the Sand-cone method (AASHTO T224) which ranges from 90-100%. The gradation analysis (AASHTO T27) resulted in percentage passing of 40.8%, 33.5% 28.3%, and 22.7% at sieve number 4,10.40 and 200 respectively for sample 1. while the percentage passing for sample 2 were 85% 35.8% 11.3% and 4.47% at steve number 4,10.40 and 200 respectively. Atterberg limits (AASHTO T89) showed a plasticity index of 2.7 and 4.6 for samples 1 and 2 respectively. The Californian Beaning Ratio (AASHTO T193) at 1" penetration ranges from 38.3% to 64 6% and 36.3%-57.0% at 0.2" respectively. According to AASHTO classification sample I was classified in A-1-b which is good to excellent for embankment and subgrade while sample 2 is good for road base.
