Abstract: The effects of strain rate on the dynamic stress-strain behavior of cement mortar were investigated in split Hopkinson pressure bar (SHPB) tests; the resulting strain rates ranged from 20 to

Abstract: Cementitious materials contain multiple phases, from the nanoscale to the macroscale. Although different mechanical properties are observed at each scale length, similarities can still be found in their spatial structural ...

Abstract: As the main hydration products, calcium-silicate-hydrate (C─ S─ H) and portlandite (CH) contribute significantly to the tensile strength of cementitious materials. However, the role of interface in the C─ S─ H/CH composites ...

Abstract: This paper aims to propose a short-distance water impact method to test the hydraulic erosion resistance of ultrahigh performance concrete materials (UHPC). The method used high-velocity water flow to simulate a complex ...

Abstract: The dynamic characterization of cement-based materials under high strain rates is fundamental to understand the material behavior in case of heavy earthquakes and dynamic events. Abram’s law, which was originally formulated ...

Abstract: Cores with diameters of 74 mm and length-to-diameter (

Abstract: A pulse-shaped split Hopkinson pressure (SHPB) was employed to determine the dynamic compressive mechanical responses of concrete cores. The loading pulses in SHPB experiments were precisely controlled to ensure that the ...

Abstract: The objective of this study was to determine the tensile behavior for dam concrete under simulated earthquake loading conditions (loading frequency 5 Hz). Four-point loading tests were conducted on large beam specimens (

Abstract: A comprehensive test program was conducted on the compressive strength of concrete cores. The tests involved eight mixes of concrete. Because over 200 tests were conducted, it was possible to undertake an analysis of the ...

Abstract: A value of tensile strength of cement-based materials is required for the design of pavements, for the analysis of concrete dams to prevent thermal cracking and sometimes for the design of prestressed beams. Cementitious ...