Effects of Low Volume Fraction of Polyvinyl Alcohol Fibers on the Mechanical Properties of Oil Palm Shell Lightweight Concrete
Table 5
Development of compressive strength of lightweight OPS FRC under continuous moist curing.
Mix code
Compressive strength (MPa)a
1 d
3 d
7 d
28 d
90 d
V0
29.32 (68%)
33.04 (77%)
39.48 (92%)
42.89
43.29 (101%)
(0.61)
(0.33)
(0.48)
(0.49)
(0.67)
V0.125
28.81 (67%)
32.61 (75%)
39.70 (91%)
43.29
43.54 (101%)
(0.83)
(0.97)
(0.62)
(0.73)
(0.89)
V0.250
28.95 (64%)
34.60 (76%)
39.92 (88%)
45.56
46.77 (103%)
(0.90)
(0.97)
(0.81)
(0.86)
(0.78)
V0.375
29.65 (64%)
35.88 (77%)
41.95 (90%)
46.62
47.60 (102%)
(0.83)
(0.95)
(0.75)
(0.87)
(0.95)
V0.500
30.66 (63%)
37.58 (77%)
43.75 (90%)
48.51
51.48 (106%)
(0.88)
(0.80)
(0.81)
(1.22)
(0.66)
The data in parentheses are percentages of 28-day compressive strength. Note: the standard deviations (in MPa) of the corresponding mechanical properties are shown in the bracket (below).