Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   ERRORS new
 Did you received any Funny E-Mails from your Friends and like to share with rest of our friends? Yeah!! you can post that stuff   HERE

 Categories  >>  Engineering  >>  Civil Engineering

 Civil Engineering Interview Questions Mechanical Engineering Interview Questions Electrical Engineering Interview Questions Electronics Communications Interview Questions Chemical Engineering Interview Questions Aeronautical Engineering Interview Questions Bio Engineering Interview Questions Metallurgy Interview Questions Industrial Engineering Interview Questions Instrumentation Interview Questions Automobile Engineering Interview Questions Mechatronics Engineering Interview Questions Marine Engineering Interview Questions Power Plant Engineering Interview Questions Engineering AllOther Interview Questions
Question
```Laboratory experiments conducted in Mumbai on a particular
mix showed a
strength of 33 MP a for a fully matured concrete. Find
whether formworm
can be removed for an identical concrete placed at Jammu at
the age of 15
days when the average temperature is 60C. The stripping
stress in concrete
```
Question Submitted By :: Manohar Cherala
I also faced this Question!!     Rank Answer Posted By

Re: Laboratory experiments conducted in Mumbai on a particular mix showed a strength of 33 MP a for a fully matured concrete. Find whether formworm can be removed for an identical concrete placed at Jammu at the age of 15 days when the average temperature is 60C. The stripping stress in concrete
# 1
First thing the question is not completely and correctely
typed. The stripping stress in concrete in missing and also
how 60 deg temp will be possible in Jammu & Kashmir.
Let us connsider the Stripping stress of concrete as 25 Mpa
and average temp is 6 deg.

Now,

Maturity = Submission (time x temp)
= 15 x 24 x [6 - (11)]
= 6120 deg CH

Plowman's Constant given as A = 21 and B = 61

Se/S 15 = A + B Log10 [ M /1000]

Percentage of strength = 21 + 61 log(6120/1000)
= 68.99

The strength of Concrete at 15 days = 33 x (68.99/100)

= 22.76 Mpa

Since the strength of concrete is less than the stress

 Is This Answer Correct ? 0 Yes 0 No
Buntychandwani
[HCC]

Re: Laboratory experiments conducted in Mumbai on a particular mix showed a strength of 33 MP a for a fully matured concrete. Find whether formworm can be removed for an identical concrete placed at Jammu at the age of 15 days when the average temperature is 60C. The stripping stress in concrete
# 2
First thing the question is not completely and correctely
typed. The stripping stress in concrete in missing and also
how 60 deg temp will be possible in Jammu & Kashmir.
Let us connsider the Stripping stress of concrete as 25 Mpa
and average temp is 6 deg.

Now,

Maturity = Submission (time x temp)
= 15 x 24 x [6 - (11)]
= 6120 deg CH

Plowman's Constant given as A = 21 and B = 61

Se/S 15 = A + B Log10 [ M /1000]

Percentage of strength = 21 + 61 log(6120/1000)
= 68.99

The strength of Concrete at 15 days = 33 x (68.99/100)

= 22.76 Mpa

Since the strength of concrete is less than the stress to
which it is likely to be subjectd while stripping the
formwork, the concrete may fail. Therefore, the formwork
cannot be removed at 15 days time.

 Is This Answer Correct ? 0 Yes 1 No
Buntychandwani
[HCC]

  Question Asked @ Answers Other Civil Engineering Interview Questions what is the load acting on the sides of the water tank 2 what is a civil enggineer ? ICICI 3 why 1.25 factor is to be multiplied to cylindrical strength of concrete while getting the equvalent cubical strength of concrete? 9 why main steel is to be reinforced in shorter direction in case of slab? Kirloskar 8 1m3 3/4 inch course agreegate concrete is which m3 of agreegate ? 3 Hi, Please tell me the ISI specification for the duration of concrete to achieve full strength of concrete. Is it 28days? UPSC 5 1:5:10 isme 1 kya h 5 kya h 10 kya h 7 What is the exact meaning for under & over reinforced beams & when they have to used.. L&T 6 how many types of hydraulic coefficints and their values 2 How do we calculate the weight of aggregates, sand and cement M 25 design mixfor 1 cum 1 how to calculate stirrups length for circular column 3 what is the density of compacted earth and jamuna sand 2 For more Civil Engineering Interview Questions Click Here