| II. PAVEMENT ENGINEERING AND PAVING MATERIALS
1. SOIL STABILISATION, LOW GRADE MATERIALS AND LOW VOLUME ROADS
A. ON GOING PROJECTS
|2. Demonstration of CRRI Technology for Construction of a Demonstration Test Stretch Road Using Marble Slurry Dust (MSD) in District Rajsamand, Rajasthan|
|Date of Start:|
|Scope and Objectives|
|The objective of the project is to demonstrate the technology for construction of road using Marble Slurry Dust (MSD) in road pavement layers and in embankment construction as per the specifications developed by CRRI. The scope of the work includes the construction supervision of control and test sections and their evaluation for three monsoon seasons.|
|Present Status and Progress|
|Laboratory investigations were carried out to analyze and characterize the soil collected from which place and marble slurry dust to determine the optimum quantity of MSD to be incorporated in sub-grade construction. The demonstration stretch consists of 150 M length of control sections on either side of test sections, 150 M length of embankment in cutting (1 M depth and 4 M wide) prepared with 100 per cent marble slurry dust and 450 M length of sub-grade ( 0.6 M ) prepared by mixing in-situ soil and optimum quantity of MSD.
The construction of the demonstration stretch has been completed and zero reading for performance evaluation recorded.
|Demonstration stretches constructed will go a long way in gaining the users’ confidence for bulk utilization of marble slurry dust in road pavement layers and embankments and thus will help marble industry of the state environmentally sustainable.|