Assessment of the Effect of Replacing Normal Aggregate by Porcelinite on the Behaviour of Layered Steel Fibrous Self-Compacting Reinforced Concrete Slabs under Uniform Load
Table 11
Effect of replacing normal-weight aggregate by lightweight aggregate on ultimate uniform load and density.
Designation
Layer designation
Vf (%)
(MPa)
(MPa)
Density (kg/m3)
Percentage of decrease
Pu (kN)
Ultimate uniform load (MPa)
Percentage of decrease
N
All layers
0
30.5
3.2
2336
—
74
0.321781
—
Vf = 0%
L
All layers
0
19
2.4
2008
14.04
58
0.252207
21.62
N/4F
Top layer
0
30.5
3.2
2336
—
104
0.452233
—
Vf = 0.4%
Bottom layer
0.4
35.5
4.3
2377
L/4FL
Top layer
0
19
2.4
2008
14
82
0.356015
21.15
Bottom layer
0.4
21.3
3.0
2045
N/8F
Top layer
0
30.5
3.2
2336
—
148
0.643562
—
Vf = 0.8%
Bottom layer
0.8
38.1
5.3
2405
L/8FL
Top layer
0
19
2.4
2008
13.77
124
0.538365
16.21
Bottom layer
0.8
23.5
3.7
2080
Use the average value. Equivalent failure concentrated load.
