Research Article

Research on Fracture Toughness of C120 Ultra-High-Performance Concrete in Kingkey Financial Center Project

Table 3

Results of compressive strength and static modulus of elasticity of prism specimens.

No.AgeSizeCompression strengthStatic modulus of elasticity
IndividualAverageIndividualAverage

1: Initial28100 × 100 × 300115.2 MPa138.0 MPa5.20 × 104 MPa5.20 × 104 MPa
138.0 MPa5.18 × 104 MPa
138.8 MPa5.22 × 104 MPa

2: 1 kg long fiber28100 × 100 × 300127.2 MPa128.7 MPa5.10 × 104 MPa5.23 × 104 MPa
126.8 MPa5.21 × 104 MPa
132.0 MPa5.37 × 104 MPa

3: 2 kg long fiber28100 × 100 × 300137.2 MPa136.6 MPa5.22 × 104 MPa5.30 × 104 MPa
139.0 MPa5.22 × 104 MPa
133.6 MPa5.45 × 104 MPa

4: 2 kg short fiber28100 × 100 × 300104.8 MPa116.7 MPa5.18 × 104 MPa5.25 × 104 MPa
116.4 MPa5.23 × 104 MPa
128.8 MPa5.33 × 104 MPa