mortar & aggregates Flashcards
1
Q
mortar in which both cement and lime are used are as binding materials are called
A
gauged mortar
2
Q
sand in mortars are used to reduce
A
shrinkage of binding material
3
Q
cement mortar is prepered by which mixing
A
hand mixing
4
Q
how many times we shd overturn the mortar with shovels
A
2 - 3
5
Q
sand shows which property in mortar
A
internal friction
6
Q
fineness modulus of fine, medium & coarse sand
A
fine sand - 2.2 - 2.6
medium - 2.6 - 2.9
coarse - 2.9 - 3.2
7
Q
fly ash is related to which IS code
A
IS 3821 - 1981
8
Q
inert materials used in preparation of lime mortar is
A
brick powder
9
Q
% of voids in angular & rough shaped aggregates
A
38 - 40% (angular)
32 - 33 %(round)
irregular - 35 - 38%
10
Q
unit wt of aggregates
A
23 - 26kN/m3
