A systematic study of the basic mechanical properties of ultra-high ductility cementitous composites (UHDCC), including the compressive, tensile and shear properties from normal strength to high strength were investigated in present research. The compressive strength of cylinder specimens with diameter of 100 mm and height of 200 mm were in the range of 43–115 MPa. The compressive strain corresponding to the peak stress, the Young’s modulus and the Poisson’s ratio were calculated. The tensile properties including the peak stress, the strain capacity and the strain energy were obtained as well as the relationships between the aforementioned parameters and the compressive strength. The peak tensile stress and the strain capacity of UHDCC were ranged from 6.2 MPa to 16.5 MPa, and 8.0% to 11.1%, respectively. Additionally, the shear stress-strain curves and the relationship between the shear strength and the corresponding compressive strength were also established. During the whole loading process of direct tensile and shear tests, the crack patterns were monitored by digital image correlation method.
Composite Structures – Elsevier
Published: Feb 1, 2018
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