Location
Arlington, Virginia
Date
15 Aug 2008, 1:30 pm - 3:00 pm
Abstract
Most of the data available from the cement industry and the literature exhibits performance of concrete cubes cured in normal water. Even the literature related to the durability of concrete deals mostly with concrete cured in normal water (closer to potable water in characteristics). However, the bored-cast-in-situ piles are cured in the ground water. The development of strength of concrete of bored cast-in-situ piles depends upon the quality of ground water. The effect of sulphates and chloride is well established and most of the codes stipulate permissible limits of pH, sulphates and chlorides contents in the ground water. In the last 20 years, authors have come across a number of situations where inspite of water being certified as satisfactory, from chlorides-sulphate point of view the pile shafts have shown deterioration beyond the conceivable limits. The authors have been working on the problem to establish the effect of quality of water with reference to Ryzner index and Marble test; a parameter that plays a significant role in deciding the quality of water and Marble test as proposed by DIN. The research work involves curing of cubes of same mix in a chemically analyzed ground water as well as normal water. The properties of the concrete like cube strength, elasticity, permeability and setting time are compared. Three types of cement in three grades of concrete are used. The cubes are tested for cube strength for 1, 7, 14, 28, 45 and 90. The findings of the research programme shall be presented into the paper
Department(s)
Civil, Architectural and Environmental Engineering
Meeting Name
6th Conference of the International Conference on Case Histories in Geotechnical Engineering
Publisher
Missouri University of Science and Technology
Document Version
Final Version
Rights
© 2008 Missouri University of Science and Technology, All rights reserved.
Creative Commons Licensing
This work is licensed under a Creative Commons Attribution-Noncommercial-No Derivative Works 4.0 License.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
Ganpule, V. T. and Mhaiskar, S. Y., "Deterioration of Bored Cast in Situ Piles Due to Aggressive Water" (2008). International Conference on Case Histories in Geotechnical Engineering. 2.
https://scholarsmine.mst.edu/icchge/6icchge/session11b/2
Deterioration of Bored Cast in Situ Piles Due to Aggressive Water
Arlington, Virginia
Most of the data available from the cement industry and the literature exhibits performance of concrete cubes cured in normal water. Even the literature related to the durability of concrete deals mostly with concrete cured in normal water (closer to potable water in characteristics). However, the bored-cast-in-situ piles are cured in the ground water. The development of strength of concrete of bored cast-in-situ piles depends upon the quality of ground water. The effect of sulphates and chloride is well established and most of the codes stipulate permissible limits of pH, sulphates and chlorides contents in the ground water. In the last 20 years, authors have come across a number of situations where inspite of water being certified as satisfactory, from chlorides-sulphate point of view the pile shafts have shown deterioration beyond the conceivable limits. The authors have been working on the problem to establish the effect of quality of water with reference to Ryzner index and Marble test; a parameter that plays a significant role in deciding the quality of water and Marble test as proposed by DIN. The research work involves curing of cubes of same mix in a chemically analyzed ground water as well as normal water. The properties of the concrete like cube strength, elasticity, permeability and setting time are compared. Three types of cement in three grades of concrete are used. The cubes are tested for cube strength for 1, 7, 14, 28, 45 and 90. The findings of the research programme shall be presented into the paper
