Spatial Distribution of CaCO3 in Biocemented Sandy Slope Using Surface Percolation | Journal of Materials in Civil Engineering

Abstract The microbial-induced carbonate precipitation (MICP) technique has been increasingly employed for erosion mitigation and stabilization of sandy slopes. Biocementation can improve the strength and stiffness of unsaturated sand. In this study, the performance of a new biogrouting method (i.e., surface percolation) for sandy slopes under unsaturated conditions was investigated. Model-scale laboratory tests were conducted on…

Dynamic Response of Two Extrusive Igneous Rocks Using Split Hopkinson Pressure Bar Test | Journal of Materials in Civil Engineering

Abstract In this paper, the stress-strain response of two extrusive volcanic igneous rocks, e.g., compact basalt (CB) and volcanic breccia (VB), under a high rate of loading is studied experimentally and numerically. The dynamic characterization of rocks is done for five different specimen sizes using a split Hopkinson pressure bar (SHPB) device with a 76–mm diameter….

New modular gearbox kit from igus

The potential for service robotics is growing fast: in hospitality, medical care, agriculture and logistics, lightweight robots help to automate monotonous tasks. To show that using service robots can be easy and low cost, igus will present a modular, configurable gearbox kit for robotics at the Hannover Trade Show from 12-16 April. The kit features…

Empirical Probability Distribution Models for Soil-Layer Thicknesses of Liquefiable Ground | Journal of Geotechnical and Geoenvironmental Engineering

Abstract Probability distribution models (PDMs) of variables are cornerstones in the performance-based earthquake engineering framework. For liquefiable ground in earthquake-prone regions, the liquefiable layer often is sandwiched between nonliquefiable layers. However, PDMs for thicknesses of these soil layers, particularly the nonliquefiable crust and the liquefiable layer, are not yet well established. To fill this gap,…

Flexural Strengthening of Two-Way RC Slabs with Cut Openings Using Textile-Reinforced Mortar Composites | Journal of Composites for Construction

Abstract This paper presents an experimental investigation on the application of textile-reinforced mortar (TRM) layers as a means of increasing the flexural capacity of two-way reinforced concrete (RC) slabs with cut openings. The investigated parameters included the number of TRM layers (one versus two layers), the textile type (two carbon fiber textiles with different weight…

Gerald Anderson Reacts To Julia Barretto’s New Selfies

Gerald Anderson’s Reaction To Julia Barretto’s New Selfies GERALD ANDERSON – Fil-Am actor and businessman Gerald Anderson left a comment on girlfriend Julia Barretto’s new selfies. Filipina actress and vlogger Julia Barretto is one of the most promising actresses in the Philippines. She’s the daughter of celebrities Dennis Padilla and Marjorie Barretto. Julia is the…

Numerical Modeling Approach for Steel Catenary Riser Behavior at Touchdown Zone | Journal of Geotechnical and Geoenvironmental Engineering

Senior Geotechnical Engineer, Fugro GeoConsulting, 58 Mounts Bay Rd., Perth, WA 6000, Australia; formerly, Research Associate, Centre for Offshore Foundation Systems, Oceans Graduate School, Univ. of Western Australia, Perth, WA 6009, Australia. Email: [email protected] Source link

P-Wave Velocity and Energy Evolution Process of Concrete in Uniaxial Loading–Unloading Tests | Journal of Materials in Civil Engineering

Abstract P-wave velocity ( Vp ) is a significant parameter in characterizing the physical and mechanical properties of rock. The Vp of rock under different stress conditions will vary greatly. This study investigated the transformation of Vp under a single load and unload condition. Six concrete specimens were used. The unload level was 0 (uniaxial…

Shear Behavior of Brick Masonry Walls Strengthened with Textile-Reinforced Concrete | Journal of Composites for Construction

Abstract In this study, in-plane shear tests were performed on 20 masonry wall specimens. The research factors considered included the length, height, thickness, fiber material, and number of textile-reinforced concrete (TRC) layers of the specimens. The failure modes, shear strength, pseudoductility, and energy dissipation of masonry walls under the influence of different factors studied were…

BEEAs Day 4: The Winners

Day Four of the British Engineering Excellence Awards has seen new winners announced. They are: Start-Up of the Year: Archangel Lightworks Young Design Engineer of the Year: Mohammed Tahir of PRFI Archangel Lightworks is a specialist in the design, manufacture, repair and calibration of load cells and load monitoring equipment. The judges called it: “Boldly…