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715
IBRACON Structures and Materials Journal • 2012 • vol. 5 • nº 5
E. RIZZATTI | H. R. ROMAN
|
G. MOHAMAD | E.Y. NAKANISHI
Table � � Results of co��ression strength of structural walls
Where: f is the wall strength (MPa); f /f is efficiency factor between wall strength in relation to the block; s.d. is the standard
wall
wall
b
deviation (MPa); c.v is the coeficiente of variation (%); f A is the strength in the net area; f A is the strength in the gross area.
net
gross
BLOCK
COMPRESSIVE STRENGTH OF
MASONRY WALL WITH MORTAR I
COMPRESSIVE STRENGTH OF
MASONRY WALL WITH MORTAR II
f A
net.
f A
gross
f /f
wall
b
f A
net.
f A
gross
f /f
wall
b
f
wall
f
wall
9,62
4,76
0,17
9,72
4,80
0,17
A
s.d
s.d
0,69
1,36
c.v
c.v
7,2
13,94
f
wall
f
wall
10,27
6,03
0,18
10,32
6,06
0,18
B
s.d
s.d
0,65
0,60
c.v
c.v
6,3
5,85
f
wall
f
wall
8,72
4,41
0,14
9,99
5,05
0,16
C
s.d
s.d
1,70
2,67
c.v
c.v
19,50
26,34
f
wall
f
wall
14,29
7,99
0,25
15,48
8,59
0,27
D
s.d
s.d
1,37
1,15
c.v
c.v
9,5
7,4
Figure �� � �ompression strength of blocks, mortars, prisms and walls in the net area