Mechanical characterisation of cementitiously stabilised moorum for use as structural layers in paving road construction

Abstract

Due to the depletion of supplies for high-quality aggregates, it has become necessary to incorporate marginally soft materials like moorum in pavement structural layers. This study aimed to investigate the mechanical characteristics of cementitiously stabilised moorum materials (CSMM), which would be relevant during the mechanistic design of pavements. The tests includes the unconfined compressive strength, california bearing ratio in a soaked state, flexural strength, indirect tensile strength, durability and shrinkage behaviour through a comprehensive laboratory investigation procedure. In this investigation, the collected moorum sample was from Bihar, the eastern state of India. Relationships between various mechanical characteristics have been developed for pavement analyses. The properties are achieved as per standards to study the behaviour of the pavement structures. Based on the research findings, the effectiveness of the strength and shrinkage characteristics in determining the acceptability of CSMM as a road base and subbase applications have been discussed.

KEYWORDS:

• Mechanistic design
• IDT
• MOR
• autogenous shrinkage
• ultimate drying shrinkage

Disclosure statement

No potential conflict of interest was reported by the author(s).