Abstract
AbstractHuge quantities of sea shell wastes (SSW) are generated from fishery industry which are generally dumped in open landfills or oceans and sea resulting in ecological degradation. These SSW are mostly made of calcium carbonate and take long period to decompose thus leading to environmental pollution along sea coasts and at dumping sites. In this project, experimental study was carried out to determine the effect of SSW on the strength characteristics of locally available in-situ soil, classified as Silty Sand (SM) based on its index properties. Crushed sea shells (CSS) of size 4.75 mm to 75 μ were added in quantities of 10–40% with SM soil to determine their outcome on unconfined compressive strength (UCS) and on California Bearing Ratio (CBR) value of soil. Based on the experimental investigation, for SM with 35% CSS, maximum UCS of 100.2 kPa, peak unsoaked and soaked CBR strength of 12.9% and 6.88%, respectively were attained. Thickness of flexible pavement was calculated by CBR method, and it was observed that for SM with 35% CSS, percentage decrease in flexible pavement thickness of 48.1% and 52.8% was calculated with respect to unsoaked and soaked CBR values, respectively, thus resulting in an economical construction.KeywordsSea shell wasteSilty SandUnconfined compressive strengthCBR strengthFlexible pavement
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call