Experimental, Numerical, and Analytical Studies of Uniaxial Compressive Behavior of Concrete Confined by Ultra-High-Performance Concrete
Table 1
Geometry and property details for these specimens.
Specimens
Shape
Quantity
Core concrete (MPa)
UHPC thickness (mm)
Peak strength (MPa)
Corresponding strain
Rise (%)
Rise (%)
CU-C50
Circular
3
38.5
0
—
—
—
—
CC-C50-U25
2
25
57.1
56
0.0036
89
54.0
47
0.0035
83
SU-C50
Square
3
38.5
0
—
—
—
—
SC-C50-U25
2
25
51.3
31
0.0038
81
58.8
50
0.0039
88
RU-C50
Square
3
38.5
0
—
—
—
—
RC-C50-U15
1
15
43.3
10
0.0034
72
RC-C50-U20
1
20
46.7
19
0.0036
80
RC-C50-U25
1
25
50.0
27
0.0037
82
RC-C30-U15
1
26.7
15
31.7
18
0.0036
78
RC-C30-U20
1
20
33.3
24
0.0037
83
Note. The legend for the specimen is defined as follows: CC = circular confined; CU = circular unconfined; SC = square confined; SU = square unconfined; RC = rectangular confined; RU = rectangular unconfined.
