Feasibility of using ultra-high ductility cementitious composites for concrete structures without steel rebar
By Kequan Yu, Ling-zhi Li, Jiangtao Yu, Jianzhuang Xiao, Junhong Ye, Yichao Wang. Engineering structures, 2018
172 citations recorded by the source corpus.
Abstract To verify the feasibility of using the ultra-high ductility cementitious composites (UHDCC) for construction without steel reinforcement, the mechanical properties of UHDCC was experimentally tested at material, structural member and structure levels. The tensile strength of UHDCC was from 5 MPa to 20 MPa, the average tensile strain capacity was 8% with the maximum value up to 12%. Four-point bending tests demonstrated that the plain UHDCC beams can match the loading capacity of conventional reinforced concrete beams with the steel reinforcement ratio of 0.5–1.5%. The deflection-span ratio of all the plain UHDCC beams exceeded 1/50 at the peak load. The eccentric compressive loading tests showed that the loading capacity of plain UHDCC column was close to that of RC column with a steel ratio of 0.8%. Additionally, shaking table tests were implemented on a RC frame (steel reinforcement ratios of columns were about 2.0%) and a plain UHDCC frame. The UHDCC frame survived 3 kinds of earthquakes with the peak ground acceleration from 0.105 g to 1.178 g, and exhibited excellent inter-story drift control under extremely strong earthquakes. The performance of the UHDCC frame fulfilled the requirements of various seismic codes. The feasibility of non-steel reinforced UHDCC structure was preliminarily confirmed by this study.
Subfields: Building and Construction, Civil and Structural Engineering
View Paper: https://www.semanticscholar.org/paper/d4f4458cc1260afd31aea8b863371e5a67d4a61b
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Building and Construction
- V. Mechtcherine
- Kequan Yu
- G. V. van Zijl
- Jinlong Pan
- He-hua Zhu
- Fred Bos
- Venkatesh Nerella
- Victor C. Li
In Civil and Structural Engineering
Citations in the corpus
- 3D-printable engineered cementitious composites (3DP-ECC): Fresh and hardened properties (2021, background): “Previous research demonstrated good seismic resistance of a two-story ECC frame building in a shake table test, which highlights the potential of using ECC with reduced or no steel reinforcement in structures [17].”
- On the emergence of 3D printable Engineered, Strain Hardening Cementitious Composites (ECC/SHCC) (2020, background): “The self-reinforcing characteristic [12,13] inherent in the material obviate the need for additional processing steps and significantly decreases the sensitivity to local failures, like chipping.”