http://hdl.handle.net/123456789/4 2026-03-19T19:01:28Z http://hdl.handle.net/123456789/24 Title: International Journal of Civil Engineering and Technology (IJCIET) Authors: GOGOI, INDIRA BARUAH; GOSWAMI, Dr. DIGANTA; DEKA, Dr. GIRINDRA Abstract: An attempt has been made to study the geological and engineering properties of the riverborne coarse aggregates of river Pagladia, Baksa district, Assam for evaluating their suitability as road material. The investigation were carried out on both natural and crushed form of the coarse aggregates of the river from upstream to gradually downstream to see their probable property variations. The results of various geological and engineering test performed show that both the type of aggregates are suitable as road material as per specification laid down by Indian Standard Institutions (Bureau of Indian Standard), Indian Roads Congress and Ministry of Surface Transport and various suggestions put forward by different authors in their different publications. However, aggregates of both forms are found to be more suitable as road materials gradually from upstream to downstream side of the river. 2015-03-01T00:00:00Z http://hdl.handle.net/123456789/21 Title: EXTRACTION OF BIODIESEL FROM PONGAMIA PINNATA (L) PIERRE AND ITS PERFORMANCE ANALYSIS Authors: Brahma, Kamal Kr. Abstract: The objective of the study is to determine biodiesel from the seed of Pongamia pinnata (L) pierre (Koroch) and determine the properties of the biodiesel and blending of the biodiesel with the diesel at different percentage of the biodiesel. The properties of the biodiesel and the blending of the biodiesel with the diesel are compared with those of diesel fuels and also with biodiesel standards such as ASTM D6751 and EN 14214. The biodiesel and blending of biodiesel with diesel is tested in the four stroke single cylinder compression ignition engine and the performance of the engine is studied, exergy of the engine is analyzed and exhaust gas parameters also studied. Description: A Thesis Submitted to Gauhati University for the Degree of Doctor of Philosophy in Mechanical Engineering in the Faculty of Engineer 2017-06-01T00:00:00Z