QA/QC OF CONCRETE WORKS FOR THERMAL POWER STATION AT MUMBAI. - Printable Version

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QA/QC OF CONCRETE WORKS FOR THERMAL POWER STATION AT MUMBAI. - C M Dordi - 08-24-2022

QA/QC OF CONCRETE WORKS FOR THERMAL POWER STATION AT MUMBAI.
A Case Study

Taken from : Ambuja Technical  Literature Series - 34

INTRODUCTION :
We are now close to the turn of the century. The country has already achieved the distinction of celebrating its 50 years of independence. In the agricultural field we have achieved very good growth. Construction is the second largest revenue earner after agriculture. Its growth has been phenomenal as nearly 50% of the outlay for the last few successive five year plans has been devoted to construction. However, with the rapid rise in population, which is now nearly 900 million, there is an unending need to develop a proper infrastructure base comprising of adequate housing, roadways, ports, railways, water supply, sanitation and electricity.
The growth of the power sector was extremely sluggish prior to 1979 due to the government policy which did not encourage privatisation. State owned electricity boards were the main source for power supply in those days. Over eight decades old Tata Electric Cos. were one of the few private sector (public limited) organisations which had the distinction of supplying reliable power supply to the city of Bombay (Now Mumbai) when most of the urban and rural areas reeled under acute power shortages or power cuts. It is because of these reasons probably that industrial growth was extremely high in and around Mumbai. 
Since in the mid sixties, Companies felt the need to increase the generation capacity to serve the rapid growing requirements of the city. However, it was after several years of struggle that they were permitted to expand and construct the Country's first 500 MW Single Thermal unit at Trombay in 1979. There were already four smaller units existing and hence the new unit was called 500 MW Unit 5, Trombay. 
The Management of Tata Electric Companies had fully realised that this project had to be built with Quality, Speed and Economy so that reliable power supply at an economical rate would be available to the consumers, The slogan those days was "One day's delay means Rs.10 million loss to the industry". The Management from their past experience had realized that speedy  production of quality concrete would be the back bone of this project. Even though value wise concrete structures would cost only around 20% of the entire cost 

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