Title

Behaviour of strip footing resting on pretensioned geogrid-reinforced ferrochrome slag subgrade

Document Type

Conference Proceeding

Publication Title

Construction in Geotechnical Engineering

ISSN

23662557

Volume

84

First Page

503

Last Page

519

Publisher

Springer

School

School of Engineering

Comments

Kumar, A., Choudhary, A. K., & Shukla, S. K. (2020). Behaviour of strip footing resting on pretensioned geogrid-reinforced ferrochrome slag subgrade. In Construction in Geotechnical Engineering (pp. 503-519). Springer, Singapore. https://doi.org/10.1007/978-981-15-6090-3_37

Abstract

© Springer Nature Singapore Pte Ltd 2020. Ferrochrome slag is one of the major industrial wastes produced in huge quantities during the manufacturing of high-carbon ferrochromium alloy and it resembles the coarse dark-colored sand. The use of ferrochrome slag as a substitute for natural soil for major geotechnical projects shall not only mitigate the problems of its disposal but also reduce the problem of environmental degradation. Keeping this in view, a series of model footing tests were conducted with unreinforced ferrochrome slag subgrade, as well as subgrade reinforced with a single layer of geogrid without pretension and pretensioned geogrid. Embedment depth for the geogrid was varied corresponding to the width of the footing for both the cases. For pretensioned geogrid, pretensions in the geogrid were varied as 1, 2, and 3% of tensile strength of geogrid. It is concluded that pretensioning of the geogrid is quite beneficial in enhancing the reinforcement efficiency.

DOI

10.1007/978-981-15-6090-3_37

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