International Journal of Civil and Structural Engineering

Volume 4 Issue 3 2014          Pages: 286- 294           << Previous      Next>>

Indigenous development and testing of rotational viscometer for bituminous binders

Author Information:

Venkat Ramayya. V1, Vinayaka Rao. V. R2, Krishnaiah. S3
1- Assistant Professor, Department of Civil Engineering, Mahatma Gandhi Institute of Technology, Hyderabad, Andhra Pradesh, India.
2- Associate Professor, Department of Civil Engineering, Birla Institute of Technology & Science (BITS), Pilani, Hyderabad Campus, Andhra Pradesh, 500 078,  India.
3- Professor and Principal, JNTUA College of Engineering, Kalikiri, Chittoor District, Andhra Pradesh, India

The measurement of consistency of construction materials has been the keen interest of many researchers in the recent past. It can be observed that the empirical methods are being used for measuring consistencies of Bitumen, Cement Paste, Soil Mass and Fresh Concrete in many countries. The need of the hour is to develop instrumentation for measuring the consistencies based on Mechanistic Approaches which essentially depend on the assessment of deformation behavior in response to application of loads. This paper presents a method by which a Rotational Type Viscometer can be devised. The instrument is validated with glycerin at a specified temperature and further used to measure the viscosity of bitumen for temperatures ranging upwards from the softening point. Two terms; Static effective & Dynamic Effective Viscosity have been introduced for bitumen and a methodology has been suggested to assess these parameters.          

Keyword: Viscosity Measurement; Shear Viscosity; Static Effective Viscosity; Dynamic Effective Viscosity; Rotational Viscometer;

doi: 10.6088/ijcser.201304010028

Copyright: © 2014 by the author(s), licensee Integrated Publishing Association. This is an open-access article distributed under the terms of the Creative Commons Attribution License (3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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