hamburger

For the Water Concrete Mix Weaker Than is Not Used

By BYJU'S Exam Prep

Updated on: October 17th, 2023

For the water concrete mix weaker than is not used?

  1. 0.4 times of cement.
  2. 0.5 times of cement
  3. 0.6 times of cement
  4. Equal to the cement

Ans. C (0.6 times of cement)

For the Water Concrete Mix Weaker Than is Not Used

As per IS: 456, 

The water-Cement ratio lies between 0.4 to 0.6. If the ratio is less than 0.4, the concrete becomes very stiff, and we need a plasticizer or superplasticizer for required workability. 

And if the ratio is greater than 0.6, concrete becomes very lean and weak, and it can also erode the structure. 

As per IS: 456, from table no. 5 

Minimum cement content, maximum water-cement ratio and a minimum grade of concrete for different Exposures with a normal weight aggregate of 20 mm Nominal maximum size. The water content also depends upon the size of the aggregate.

As per IS: 12262: 2009 

Maximum Water Content per cubic Metre of Concrete for Nominal Maximum Size of Aggregate

Nominal Maximum Size of Aggregate Maximum Water Content (in kgs) 
10 208
20 186
40 165

Summary

For the Water Concrete Mix Weaker Than is Not Used

As per IS: 456, The water-cement ratio should not exceed 0.6. It can weaken the concrete and erode it as well. 

Related Questions:

AE & JE Exams

Our Apps Playstore
POPULAR EXAMS
SSC and Bank
Other Exams
GradeStack Learning Pvt. Ltd.Windsor IT Park, Tower - A, 2nd Floor, Sector 125, Noida, Uttar Pradesh 201303 help@byjusexamprep.com
Home Practice Test Series Premium