Articles
Sustainability Using Zero Wash-Out Admixture For Weir Project At Srisailem In India
by Sunanda g. SUNANDA SPECIALITY COATINGS PVT LTD Sunanda paper maps the advancement of Anti-washout admixtures for the very first time on the Indian subcontinent. Anti washout admixture was called for to be used for the construction of a weir for the SriSalem Dam throughout the Krishna River in Andhra Pradesh, India.The project called for 30000 cubic meters of concreting to be done underwater without the erection of a cofferdam as well as the job expense was approximated to be around $5.6 million.
The professionals were SNC Lavelin, Canada, and also the contractors were Patel Engineering, India. Because there were no producers of anti washout admixture in India, this was a significant advancement from Sunanda Speciality Coatings Pvt. Ltd.’s lab including over 100 trials that finished in regarding 90000 litres of the admixture being used in the job.
Project Deatials,
WEIR PROJECT AT SRISALEM, HYDERABAD-INDIA
M/s Patel Design Ltd, Mumbai are the pioneers in the hefty civil engineering building and construction considering that the 1950s, especially in hydro power structures were awarded the task as complete professionals for the building of a weir project at Sri Salem, Hyderabad.
PROJECT DETAILS:
Project Title: Weir Project at Srisalem, Dam, Srisalem.
Clients: Andhra Pradesh Power Generation Company (APGENCO)
Clients Consultants: SNC Lavelin Limited, Canada
Contractors: Patel Engineering Limited, Hyderabad
Concreting for Weir: 30,000 cu.m. (39,244 c.y.)
Dredging quantity: 40,000 cu.m. (52, c.y.)325
Estimated Project Cost: Rs. 25 Crores (approx $5.6 million)
MIX DESIGN DETAILS OF UNDERWATER:
Desired Strength: M20 grade of concrete
Slump requirements: 170 mm – 230 mm with admixtures
Anti-washout admixture specified for tremie concrete.
The efficiency of anti-washout admixtures shall be determined based on the USA Corps of Engineers specification CRD-C61–” Test approach for figuring out the resistance of newly blended concrete to rinsing in water” issued on December 1 st 1989.
The maximum washout shall not go beyond 8% cumulative mass loss.
The tremie concrete mix will consist of water minimizing, retarding, and also anti-washout admixtures. 15% of the cementitious material shall consist of a natural pozzolan or fly ash. Conversely, 8-10% silica fume might be used rather than an all-natural pozzolan or fly ash.
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About Sunanda g. 
SUNANDA SPECIALITY COATINGS PVT LTD
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Created on Jan 10th 2022 02:45. Viewed 177 times.
