Abstract: The first rarely mentioned fundamental assumptions for the strength versus water-cement ratio relationship are discussed, namely, that: (a) the strength of structural concrete is controlled by the strength of the cement ...

Abstract: Although the Poisson's ratio of concrete is known to vary within a significant range of values, the resulting effects on impact-echo test results have not been studied. In this regard, background to the problem is given ...

Abstract: A 2D numerical model for convection-diffusion flow of a multispecies mixture through a multilayer porous medium is used to analyze the efficiency of landfill venting trenches. By analyzing the way each of the components ...

Abstract: The behavior of different length wide flange (WF) links in eccentrically braced steel frames with or without axial force application, were experimentally investigated using a subassemblage system simulating the frame action. ...

Abstract: Shear links employed in Eccentrically Braced Frames (EBFs) must be appropriately stiffened in order to prevent premature web buckling and retain energy dissipation capability for subsequent cyclic loading. Criteria for web ...

Abstract: The negative squeeze lubrication problem is investigated by means of numerical simulations that account for the dynamics of vaporization. The model is based on bubble dynamics, governed by the ...

Abstract: This study presents a practical approach for imaging concrete pavement and bridge deck slabs for the presence of delamination defects. Air-coupled impact resonance (impact-echo) test data are presented as a fused image by ...

Abstract: An analytical model for the response of a reinforced concrete panel with friction energy dissipators is implemented for different input displacements. For this purpose, a hysteresis element based on an extension of the ...

Abstract: In this paper, air-coupled impact-echo is successfully applied for nondestructive evaluation of concrete. The air-coupled sensor is a small (