Title:
Sustainability by Using Zero Wash-out Admixture for Large Underwater Concreting Project in India
Author(s):
Surendra Manjrekar and Ishita Manjrekar
Publication:
Symposium Paper
Volume:
285
Issue:
Appears on pages(s):
1-8
Keywords:
under water concreting, anti-washout admixture, admixture, mix design
DOI:
10.14359/51683932
Date:
5/1/2012
Abstract:
This paper maps the development of Anti-washout admixtures for the first time on the Indian subcontinent. Anti washout admixture was required to be used for the construction of a weir for the SriSalem Dam across the Krishna River in Andhra Pradesh, India. The project required 30000 cubic meters of concreting to be done under water without the erection of a cofferdam and the project cost was estimated to be about $5.6 million. The consultants were SNC Lavelin, Canada and the contractors were Patel Engineering, India. Since there were no manufacturers of anti washout admixture in India, this was a significant development from Sunanda Speciality Coatings Pvt. Ltd.’s lab involving over 100 trials that culminated in about 90000 liters of the admixture being used in the project.