By
Kaushal Kishore
Materials Engineer, Roorkee
The new Solani aqueduct on Ganges canal Roorkee was built with prestressed concrete which allows for longer spans and a simple more robust design compared to old bricks, lime- surkhi mortar masonry arches of the old aqueduct, in which 8.5 crores bricks were used, while iron railing used in the sides of two lanes were imported from England. This is interesting to note that materials bringing those days on ship from England to Indian ports take 6-10 weeks via the Suez canal or 3 to 6 months via the longer Cape of Good Hope. Calculate in it also time taken on road from Indian ports to Roorkee.
After retirement from University of now IIT Roorkee I joined M/S Roffe Construction Chemicals Pvt.Ltdd, Mumbai as it’s Chief Concrete Technologists afterwards I became it’s one of the Director.

AQUEDUCT picture taken on 7/10/2025
For the contractor of above aqueduct I designed M-40 grade of concrete with Roffe superpladticizer. Those interested may read my paper by visiting Google site and log in; Civil engineering portal The Ganges canal by Kaushal Kishore.
I had designed numerous concrete mix design almost all cements of India in this I find Utra Tech cement as one of best cement OPC and PPC both With Ultratech cement I had designed numerous concrete mixes from ordinary strength to M-80 grade concrete, self compacting concrete, shot crete concrete, fibre reinforced concrete, fly ash concrete and more There is life after retirement and after retirement I worked for 30 year’s which includes in free time working in home research and testing laboratory and numerous construction sites visits almost all India and outside India. At my age of 92 years I still work for 12 hours daily.
I had never worked for money. In spite of doing so gigantic work what to say about car I even do not have 2 wheeler not any of my house not a single inch of land in this world only pension from IIT Roorkee and few clothes
What is the physical meaning of hydraulic death not in mathematical for (a/p) what is actual use in open channel
It’s very important to Civil engineering
plz tell me details of road con.
This portal is very important to us
pleas send me free civil enhineering books to read
good Web.
what does a visual structural inspection consist of
what is hydraulic ram
hi friends,i want project tilte in transportation engineering
may I get details of crank, hook used in Rcc
what was diff b/w bending stirrups 90 & 135 degree ?
and why ?
respected sir/mam
could you please refer some books which is related to reinforced concrete cylindrical shell roof
Civil Engineering is everywhere.
It is in every Road we drive,
in the Clean water we drink,
every where we Live, Work, Play.
It is really all around us.
Civil Engineers help improve the lives of millions of people.
as we all know that for finding void ratio(e) of a cube, that is vol. of void divided by vol. of solid. so my qus is how we can find vol. of void in a cube??
please do rply.
Thank you.
Its simple, just subtract the volume of solid from the total volume, note that the more you consider the total volume the more is your volume of void. Thus by calculating it you can calculate the Void Ratio
Void ratio *volume of cube
We can find void ratio by testing the soil for specific gravity and water content.There are some relations related to specific gravity and water content to find out void ratio.
BY USING SIMPLE FORMULA OF DENSITY AND SPECIFIC GRAVITY RELATIONS WE CAN FIND OUT VOLUME OF VOIDS FOR MORE INFORMATION REFER B.C. PUNMIA BOOK OF GEOTECHNICAL ENGINEERING CHAPTER PROPERTIES OF SOIL
what are the types of motors used in the construction industry #civil am a student
there are differnt types of mortar are used
1. lime mortar
2. cement mortar
3. fly ash mortar
Universal Motor
Electrically excited DC motor.
Permanent magnet DC motor.
Brushless DC motor.
Switched reluctance motor.
Cage and wound rotor induction motor.
Torque motor.
Ironless or coreless rotor motor.
dear student the types of mortar depend on the various binders used such as cement , lime etc for more information refer building construction textbook by rangwala
This site is really encouraging. But i really need some help, i need a journal or write up for “effect of concrete on the environment”. Thanks…..
thanks,and please keep it up for posting an interesting civil engineering materials,to civilize the world
Cement mortar cube compression test values for 7days, 14days and 28 days
thanking God for dis portal
Where can i get method of statement to rectify the concrete if we are given non-conformance report from the site?