Here, because water tanks are more vulnerable structures and plus the tank is sometime overfilled and sometime empty, the pressure inside is so varying,

It needs more safety precautions and as we all know working stress method assumes more safety factor than limit state design, which is an economical design, we prefer to use working stress method…

GPS ;

Global Positioning System (GPS) refers to the NAVSTAR Global Positioning System, a constellations of satellites developed by the United States Department of Defence. At first the GPS was made for military use only, but later made accessible to civilians as well. But recently, GPS is most widely used GNSS satellite constellation in the world.

GLONASS ;

Globalnaya Navigazionnaya Sputnikovaya Sistema (GLONASS) is an acronym which is translated from Russian, this means Global Navigation Satellite System. It is accessible for both military and civil use and also provides real time position and velocity determination.

The main difference between GPS & GLONASS is that, with GPS satellites use the same radio frequencies but have different codes for communication while GLONASS satellites have the same codes but use different frequencies, allowing satellites on the same orbital plane to communicate.

The best steps for bituminous patch repair work are as follows :-

– Clean the patches and debris.
– Make the affected surrounding clean.
– Spray the binder coat at the bottom of patches.
– Fill the patch with asphalt and aggregate.
– Then cover with asphalt binding material.
– Edge seal to repair work.