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
Fair selection is requite for civil Engg. so that civil engineers can do some what better their nation.In present due to lack of transparency in selection, civil engineers are unable to improve their working culture.Working culture automatically improve if selection became fully transparent. Now a days it is fully flopped in India.It can not make fully transparent by single man. Now have urgent need for joint effort so that we can success.Selection procedure should be change at once.Parameter of selection should be changed immediate.Our present government is trying it,s best review selection parameters.Present government detained interview for some junior posts. We can hope it will be some what better for public.
Nice Web site
I am a CIVIL ENGINEER from Orissa ,India . I am interested to work in a architectural field .I have a good knowledge in AUTOCAD & REVIT ARCHITECTURE .
I have completed my diploma in civil engg. . now wt to do …
Hello dear student
Better you can go for higher studies in BE or B.Tech in civil for lateral entry i.e., direct second year
Its better to do b.tech in university not private colleges k
If you want to do work, find any good job and enroll in distance education in Civil Engineering from AMIE.
Its great privilege to be a civil engineer
what are the short term courses available after B.E. civil engineering
hello friends please help me, CADD or CAD is better for autodesk certificates
I am studying diploma civil engineering i have one answer, Question is why bricks are red colour which chemicals are used
concrete cube test results & formula. kindly send me , thanks
formula=load/area.load in newton&area in sq.mm(if u got load in kilo newton you have to convert it to newton by multiplying 1000.
standerd size of cube 150*150*150.so that area of cube is(150*150=22500sq.mm)
strength of cube for 7 days=67% or more
strength of cube for 28 days=100% or more
example
grade of concrete-M20
AGE-7 DAYS
CUBE SIZE=150*150*150
area of cube=150mm*150mm=22500sq.mm
SAMPLE1=385KN (385*1000=385000 newton)
SAMPLE2=391KN (391*1000=391000 newton)
SAMPLE3=382KN (382*1000=382000newton)
(1)load/area 385000/22500=17.11N/SQ.MM
(2)load/area 391000/22500=17.37/SQ.MM
(3)load/area 382000/22500=16.97SQ.MM
AVG=(1+2+3)/3 So (17.11+17.37+16.97)/3 is 17.15
percentage=avg strength/grade of concrete*100, 17.15/20*100=85.75%
result satisfactory because more than 67%.
thank you
I am ME structure engineering student, I use superplasticizar in my thesis project plz give information how much percentage add to construct SCC…
HOW TO COMPUTE THE DEADLOADS ON RAILWAY BRIDGE?
Done a plaster on dead wall external side two coat, & internal side one coat on internal side.
& Apply external of dead wall texture with two coat pain but in rainy season leakage proble has arrived . water came from external side to internal side.
My question is that why water came from out side?????
Leakage is common in brick masonry and plaster is porous in nature. It is better to go for waterproofing to get rid of psychological unease and damge of buildings.
An increase in temperature on the top fibre of a simply supported beam will cause
(a) Downward deflection
(b) Upward deflection
(c) No deflection
(d) Angular rotation about neutral axis
can you explain ???
downward deflection
think about what happens when materials are heated, specifically how they change in length in this instance. If the top of the beam is longer than the bottom, what might happen to the beam?
Downward deflection
upward deflection
What are the quality tests to be performed for concrete hollow blocks?
Why we use low grade concrete for the soft piles in secant shoring. how can i justify??
How can i know steel sheet gauge to MM
How can I find steel sheet or steel round pipe gauge to mm ?
Need some help with connecting proposed surface with existing roads and buildings in Civil3D.
Please guide me about Rammed Earth Structures Construction
Hi,,,
I am civil engineer in Tanzania I open a company but I need your assistance in my company to grow well,,,,, I hope I will help me.