Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Complete Stress-Strain Behavior of Ecological Ultra-High- Performance Cementitious Composite under Uniaxial Compression
An ecological ultra-high-performance cementitious composite (ECO-UHPCC) was investigated in this paper. The ECO-UHPCC has three characteristics: low cement content (400 to 520 kg/m3 [24.97 to 32.46 lb/ft3]), contains nature river sand and high-strength coarse aggregate, and is cured in standard condition. The complete stress-strain behavior of ECO-UHPCC under uniaxial compression was systematically investigated. First, a series of ECO-UHPCC specimens containing different coarse aggregates and steel fibers were fabricated. Second, the uniaxial compressive tests were conducted by a high-stiffness, closed-loop, servo-controlled, material testing machine, and the complete stress-strain curves of ECO-UHPCC were obtained. Then, the results, including complete stress-strain behavior, compressive strength, elastic modulus, Poisson 's ratio, toughness, and fracture pattern of ECO-UHPCC were systematically analyzed. The test results show that ECO-UHPCC exhibits better compressive strength and stiffness than high-performance concrete. The compressive strength and elastic modulus of ECO-UHPCC with basalt coarse aggregate and 2% steel fiber were up to 128.4 MPa (18.62 ksi) and 46.2 GPa (6700.51 ksi), respectively. Finally, a new model was developed for predicting the complete stress-strain behavior of ECO-UHPCC under uniaxial compression. This model shows a good correlation with the experimental results.
Complete Stress-Strain Behavior of Ecological Ultra-High- Performance Cementitious Composite under Uniaxial Compression
An ecological ultra-high-performance cementitious composite (ECO-UHPCC) was investigated in this paper. The ECO-UHPCC has three characteristics: low cement content (400 to 520 kg/m3 [24.97 to 32.46 lb/ft3]), contains nature river sand and high-strength coarse aggregate, and is cured in standard condition. The complete stress-strain behavior of ECO-UHPCC under uniaxial compression was systematically investigated. First, a series of ECO-UHPCC specimens containing different coarse aggregates and steel fibers were fabricated. Second, the uniaxial compressive tests were conducted by a high-stiffness, closed-loop, servo-controlled, material testing machine, and the complete stress-strain curves of ECO-UHPCC were obtained. Then, the results, including complete stress-strain behavior, compressive strength, elastic modulus, Poisson 's ratio, toughness, and fracture pattern of ECO-UHPCC were systematically analyzed. The test results show that ECO-UHPCC exhibits better compressive strength and stiffness than high-performance concrete. The compressive strength and elastic modulus of ECO-UHPCC with basalt coarse aggregate and 2% steel fiber were up to 128.4 MPa (18.62 ksi) and 46.2 GPa (6700.51 ksi), respectively. Finally, a new model was developed for predicting the complete stress-strain behavior of ECO-UHPCC under uniaxial compression. This model shows a good correlation with the experimental results.
Complete Stress-Strain Behavior of Ecological Ultra-High- Performance Cementitious Composite under Uniaxial Compression
Zhiyong Liu (Autor:in) / Weiwei Chen / Wenhua Zhang / Yunsheng Zhang / Henglin Lv
ACI materials journal ; 114
2017
Aufsatz (Zeitschrift)
Englisch
| British Library Online Contents | 2017
| British Library Online Contents | 2018
| Springer Verlag | 2024
| DOAJ | 2024
| Springer Verlag | 2024