LIVE Course for free

Rated by 1 million+ students
Get app now
JEE MAIN 2023
JEE MAIN 2023 TEST SERIES
NEET 2023 TEST SERIES
NEET 2023
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
50 views
in General by (48.2k points)
closed by

Statement (I): Strength of brick wall is dependent on the type of bricks and the mortar used.

Statement (II): Slenderness ratio of masonry decides the strength of the wall, and also mortar type to be used. 


1. Both Statement (I) and Statement (II) are individually true and Statement (II) is the correct explanation of Statement (I)
2. Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)
3. Statement (I) is true but Statement (II) is false 
4. Statement (I) is false but Statement (II) is true 

1 Answer

0 votes
by (41.0k points)
selected by
 
Best answer
Correct Answer - Option 2 : Both Statement (I) and Statement (II) are individually true but Statement (II) is not the correct explanation of Statement (I)

Concept:

The basic compressive stress of masonry depends upon the crushing strength of masonry units (bricks) and type of mortar used.

Basic compressive stress also depends upon surface characteristics, water absorption property of units, uniformity of shape and size of units, thickness of joints etc.

For a wall, the slenderness ratio shall be the effective height divided by the effective thickness and stiffening coefficient (Kn) or the effective length divided by the effective thickness, whichever is less.

Thus, \(SR = \frac{h}{{t{K_n}}}\) 

No. of storeys

Thickness of wall

Maximum values of S.R

Mortar containing cement

Mortar not containing cement

Not exceeding 2

Any

27

20

Exceeding 2

Walls of 90 mm thickness or more

27

13

Wall less than 90 mm thickness

20

13

So slenderness ratio of masonry decides the strength of the wall, and also mortar type to be used.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...