ESTON 7 Discuss the factors to be considered in the selection of the following f
ID: 1885119 • Letter: E
Question
ESTON 7 Discuss the factors to be considered in the selection of the following for a particular application (i) brick. (il) block, and i) mortar types 12) 2) ) Figure Q7 is a section of a 4000 mm high wall constructed of clay bricks with a compressive strength of 21 Nmm2 laid in a 1:1:6 mortar (class IIl). Check the adequacy of the wall thickness and calculate the axial design strength of the wall. Assume a partial safety factor for materials vn # 3.5 and the vertical lateral supports (piers) provide enhanced resistance to lateral movement (6.5) 326.5 326.5 +t 2 3 m Figure Q7: Cavity wall [12.5 Marks) Total marks [100] isExplanation / Answer
a) (i) Types of brick:
2. Fly ash bricks
3. Hollow clay bricks.
(ii) Types of block:
(i)/(ii) The factors to be considered in the selection of Brick or Block application are as follows.
Material properties
Field Tests
(iii) The various grades of mortar, (Cement: lime: sand) by volume were employed in general construction practice.
IS 1905 - recommend to determine compressive strength of masonary by prism test.
Proper assessment of masonary units should be performed.
Behaviour of masonary assemblages under different action of forces should be evaluated.