Civil Engineering Reference
In-Depth Information
Table 4.15
Compressive strength of concrete with rubber aggregates
Reference
Size of aggregates/type
of replacement
Type of
concrete
Amount of
replacement (%)
Compressive
strength (MPa)
Aiello and Leuzzi
(
2010
)
12.5-20 mm/volume
Normal
0
45.80
25
23.90
50
20.87
75
17.42
10-12.5 mm/volume
Normal
0
27.11
15
23.97
30
20.41
50
19.45
75
17.06
Bignossi and
Sandrolini
(
2006
)
Sand/volume
SCC
0
33.0
22.2
24.7
33.3
20.2
Emiroglu et al.
(
2007
)
0-4 mm/volume
Normal
0
45.69
5
41.71
10
33.69
15
24.75
20
22.14
4-8 mm/volume
Normal
0
45.69
5
42.49
10
37.30
15
26.96
20
23.91
Futtuhi and Clark
(
1996
)
a
Low grade rubber/mass
Normal
0
37.45
*9.9
12.66
Rubber crumb
Normal
*11.2
11.69
a
Amount of replacement with respect to total solid content
results indicate that the size, proportions and surface textures of rubber particles
noticeably affect the compressive strength of rubberized concrete mixes (Eldin and
Senouci
1993
; Topcu
1995
). Gesoglu and Guneyisi (
2007
) observed a relatively
higher strength development between 3 and 7 days of curing and the rate gradually
decreased with curing age. However, the strength development pattern was almost
similar in conventional concrete.
Benazzouk et al. (
2003
) found a sharp reduction in 28-day compressive strength
of concrete due to the addition of different size fractions of two types of rubber
aggregates. Some results of their investigation are presented in Table
4.16
. They
also found a high dependency of strength on several parameters such as substi-
tution ratio, size and properties of rubber aggregates. The compressive strength of
concrete specimens prepared by using compacted rubber aggregates was consid-
erably higher than that using expanded rubber aggregates. Similarly, compressive
strength decreased drastically when the content of rubber aggregates increased.
