Proceeding of

MPGI National Multi Conference 2012

(MPGINMC2012)

National Conference

on

Innovative Approaches in Civil Engineering

A Special Issue of

Indian Research Transaction

(ISSN:2250-0804)

Chief Convener

Dr. Rajiv Dharaskar

Director, MPGI Integrated Campus, Nanded

Convener

Dr. Mrs Sadhana Chidrawar

Dean, School of Engineering, MPGI Integrated Campus, Nanded

Editor

Prof. K. H. Walse

M.S.India

 
 

   
   
   
   
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
IRT ISSN: 2250-0804 (Online) >> ISBN: 978-81-906467-0-8    
Title:

Structural improvement in quality standards for shotcrete for primary lining in tunnel by Destructive & Non- destructive test methods

Author:
Mahesh Uttamrao Dange
 

Citation

Mahesh Uttamrao Dange, "Structural improvement in quality standards for shotcrete for primary lining in tunnel by Destructive & Non- destructive test methods", IRT Proceeding on national conference on Innovative Approaches in Civil Engineering, 7-8 April, 2012, published by Indian research transaction, India


Abstract

In this paper, presentation is given of introduction of shotcrete history in tunneling as well as destructive and non-destructive test methods for evaluating the shotcrete strength and quality of a tunnel primary lining. The relation between shotcrete properties (compressive strength, flexural strength modulus of elasticity, and homogeneity) measured across the tunnel profile and along the whole tunnel by applying the destructive and non-destructive methods. In destructive test methods are involving testing of compressive strength, flexural strength as per relevant standards. The non-destructive methods included an ultrasonic pulse velocity method and a hammer test.

 The main purpose of this is the development of a method that evaluates the quality of shotcrete in underground structures during and after the construction work. Through the application of non-destructive and destructive test methods it is possible to assess the state of a tunnel in order to improve construction work. This will result in the higher quality of the tunnel lining and durability of the tunnel as a whole and cut remediation and maintenance costs.


Keywords

Shotcrete, Steel fibers, compressive strength, flexural strength homogeneity, modulus of elasticity, non-destructive and destructive test methods.


References  
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©2012 Indian Research Transaction

Published by Research Publications, India