Influence of Lime Stabilized Lake Sediments as Fine Aggregates in Cement Mortar

Author(s): P. Priyadharshini, K. Ramamurthy and R. G. Robinson
Paper category: Proceedings
Book title: Proceeding of the 71st RILEM Annual Week & ICACMS 2017
Editor(s): Manu Santhanam, Ravindra Gettu, Radhakrishna G. Pillai, Sunitha K. Nayar
ISBN:978-2-35158-195-7, 978-2-35158-190-2 (Set)
e-ISBN: 978-2-35158-191-9
Publisher: RILEM Publications SARL
Publication year: 2017
Pages: 183-192
Total Pages: 10
Language : English

Abstract: Deepening of lakes results in huge volume of sediments that are disposed as landfills. If these sediments find an economical value, then the process of dredging lakes and disposal of sediments would be easier. Extensive studies have been done on stabilizing soil that contains clay. However, research on its use as fine aggregate is limited. In this paper, an attempt is made to study the effect of lime stabilized lake sediments as fine aggregates on the properties of cement mortar. With clay being the major part of the sediments, shrinkage is the main problem with them. Lime (2 to 10%) has been added to the sediments and cured for 14 days in sealed containers. The acquired stabilized sediment was then used in cement mortar. Mortar made with un-stabilized lake sediments as fine aggregate, was adopted as control mix. Dry density, water absorption and compressive strength were tested. Shrinkage studies were done in prism specimens and measurements were made at regular intervals until 35 days of exposure time. Lime stabilization improved the mortar compressive strength by more than 70%. Water absorption and shrinkage strains reduced remarkably.

Online publication :2017
Publication type :full_text
Public price (Euros) : 0.00