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RISStress-Strain Behavior and Statistical Continuous Damage Model of Cement Mortar under High Strain Rates
Publisher: American Society of Civil Engineers
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
Comparative Analysis of Extreme Drought Events and Social Impacts in Henan Province during the Middle Ming Dynasty
Publisher: American Meteorological Society
Abstract: The analysis of historical climate change events can deepen the understanding of climate impacts and provide historical examples of coping with extreme events like drought. The data from historical records on droughts and ...
Mesoscale Damage Detection and Surface Deterioration of Freeze–Thawed Concrete Cores Using 3D CT Scanning and Roughness Quantification
Publisher: ASCE
Abstract: The durability of bridges plays a vital role in their regular operation and transportation, particularly as service life increases. The ability of a bridge to reach its expected service life is closely linked to its ...
Influence of Pore Structure on Mechanical Behavior of Concrete under High Strain Rates
Publisher: American Society of Civil Engineers
Abstract: Properties of a porous material such as concrete are strongly dependent on its pore structure features. This study deals with developing an understanding of the material structure-compressive response relationships in ...
Experimental Study on Dynamic Tensile Strength of Cement Mortar Using Split Hopkinson Pressure Bar Technique
Publisher: American Society of Civil Engineers
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 ...
Compressive Strength of Concrete Cores with Different Lengths
Publisher: American Society of Civil Engineers
Abstract: Cores with diameters of 74 mm and length-to-diameter (
Compressive Strength of Concrete Cores under High Strain Rates
Publisher: American Society of Civil Engineers
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 ...
Large-Beam Tests on Mechanical Behavior of Dam Concrete under Dynamic Loading
Publisher: American Society of Civil Engineers
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 (
Variability of Compressive Strength of Concrete Cores
Publisher: American Society of Civil Engineers
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 ...
Strength Values of Cementitious Materials in Bending and Tension Test Methods
Publisher: American Society of Civil Engineers
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 ...