ALLInterview.com :: Home Page            
 Advertise your Business Here     
Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions
Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   ERRORS new
   Refer this Site  Refer This Site to Your Friends  Site Map  Bookmark this Site  Set it as your HomePage  Contact Us     Login  |  Sign Up                      
Google
   
 
Categories >> Engineering >> Civil Engineering
 
 


 

 
 Civil Engineering interview questions  Civil Engineering Interview Questions (3151)
 Mechanical Engineering interview questions  Mechanical Engineering Interview Questions (3304)
 Electrical Engineering interview questions  Electrical Engineering Interview Questions (13475)
 Electronics Communications interview questions  Electronics Communications Interview Questions (2394)
 Chemical Engineering interview questions  Chemical Engineering Interview Questions (423)
 Aeronautical Engineering interview questions  Aeronautical Engineering Interview Questions (77)
 Bio Engineering interview questions  Bio Engineering Interview Questions (17)
 Metallurgy interview questions  Metallurgy Interview Questions (80)
 Industrial Engineering interview questions  Industrial Engineering Interview Questions (166)
 Instrumentation interview questions  Instrumentation Interview Questions (2407)
 Automobile Engineering interview questions  Automobile Engineering Interview Questions (108)
 Mechatronics Engineering interview questions  Mechatronics Engineering Interview Questions (38)
 Marine Engineering interview questions  Marine Engineering Interview Questions (45)
 Power Plant Engineering interview questions  Power Plant Engineering Interview Questions (81)
 Engineering AllOther interview questions  Engineering AllOther Interview Questions (1205)
Question
What is mean concrete class c35/20. Here C35 and 20 means?
 Question Submitted By :: Civil-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
c35 stands for design concrete sympol c with 35 N/mm2
& 20 means the size of aggregate used in that mix
 
Is This Answer Correct ?    60 Yes 9 No
Dinesh
 
Answer
# 2
in few instances we mark C35/20. in indicate C35, is
concrete grade or strenght (both same) as 35Mpa in 28 days.
20 is the agreegate size.

in other instances, internationaly they use like C40/50,
which means C40 - Cylinder strength in MPa and 50 is
equivalent Cube strength in MPa
 
Is This Answer Correct ?    24 Yes 3 No
Shyam Sundar
 
 
 
Answer
# 3
Not quite right. C35 is the crushing strength of concrete in
SI units. It's is a measurement of 35Mpa, which means mega
pascals. 35 therefore means a crushing strength of 35
million pascals per square metre in the mgs system, or 35
million pascals per square metre. A pascal is the SI unit of
pressure and is equal to 1 newton pressure per square metre,
ie, 35 million newtons per square metre. As a metre is a
large area, to reduce to say a mm square, we divide by
1000x1000, which is a million. This gives us 35 newtons per
quare millimetre. To give an idea in imperial measurements,
7Mpa, or C7 concrete is roughly 1,000 psi, or just under
half an imperial ton per square inch, ie, 1000/2240.
C35 is therefore roughly 5,000 psi, or 2 tons per square inch.
C35 is a fairly strong mix and would be used for say a
semi-suspended over site. For form work or strong structural
work, up to C70 can be used.
Posted 14.09.11.
 
Is This Answer Correct ?    9 Yes 4 No
Dr. P. Morton-thurtle
 
Answer
# 4
EC2 classifies the compressive strength of normal concrete
in relation to cylindrical strength measured at 28 days.

C40/50 means concrete specimen having cylindrical strength
of 40 N/mm2 and cube strength of 50 N/mm2.
 
Is This Answer Correct ?    5 Yes 1 No
Bilal
 
Answer
# 5
Guestion is not correct - C 35/20.

It will be C32/40, C10/15 .....(New Europan standarts,
concrete class, from 2003 year)
Here first 32 or 10 strength of concrete according with
cylinder test result, 40 or 15 are strength of concrete
according the cube result (N/mm2)
For example C32/40 concrete class old C40 grade. Old C40
also N/mm2 cube (150x150x150)mm test result
All cube result with 150x150x150 mm size of cubes. It is
standart.
 
Is This Answer Correct ?    7 Yes 6 No
Avaz Huseynov
 
Answer
# 6
c35 means grade of concrete and 20 means strength 
Is This Answer Correct ?    1 Yes 34 No
Amit Singh
 
Answer
# 7
20 means 20 mPa and 30 not clear but may be temperature at
which concrete should carried out
 
Is This Answer Correct ?    4 Yes 42 No
Ujjval Solanki
 

 
 
 
Other Civil Engineering Interview Questions
 
  Question Asked @ Answers
 
what is the unit weight of steel(kg/cum)& unit weight of concrete in(kg/cum)? l&t 2
how inovative you are?...how do u define innovation? Infosys 4
9*9 1:4:8 ratio using how to calculate the material for 40mm aggregate ,cement &sand please tell me answer   4
how do measure the safe bearing capacity of soil? what is the compresive strength for concret?(max.&min.)   1
What should be the min.compressive strength of cc cube after 7 days testing and 28 days testing for M25 design mix conc.?pl give idea with relavant is code   7
HOW TO MIX M20 GRADE CONCRETE BY HAND? USING BOND.   1
hai,i completed my b.tech civil.Recently i wrote the appsc exam for managers water supply engg.I want answers for general studies and civil engg paper2.If any body know or written that exam send to my mail id is ruksana.sk08@gmail.com. APPSC 3
difference between MS rod & TMT rod?   3
How many different between estimated quantity and practical work at site.   1
what is the minimum depth of cover required for pipes? ivrcl 2
what is the bar bending schdule   7
what is the constant weight of the 6mm,8mm,10mm,12mm,20mm,25mm etc.............dia bars in 1meter Mpsc 5
 
For more Civil Engineering Interview Questions Click Here 
 
 
 
 
 


   
Copyright Policy  |  Terms of Service  |  Articles  |  Site Map  |  RSS Site Map  |  Contact Us
   
Copyright 2013  ALLInterview.com.  All Rights Reserved.

ALLInterview.com   ::  KalAajKal.com