Articles
Numerical Assessment of Effects of Strain Rate on the Critical State of Crushable Sand
Author(s) S.K. Das* S.K. Verma* A. Das* Abstract This study highlights the effects of strain rate on the critical state (CS) response of crushable sand. A set of drained triaxial tests is simulated using the discrete element method (DEM) to understand the rate...
Assessing the Undrained Strength Cross-anisotropy of Three Tailings Types
Author(s) D. Reid* R. Fanni† A. Fourie* Abstract The cross-anisotropic nature of soil strength has been studied and documented for decades, including the increased propensity for cross-anisotropy in layered materials. However, current engineering practice for...
Improving Microbially Induced Calcium Carbonate Precipitation Effects by Nacre Extractions
Author(s) X. Xu* H. Guo* M. Li† H. Fu† Abstract In microbially induced calcium carbonate precipitation (MICP) process, it is the precipitated calcium carbonate that cements loose sand particles together to improve their mechanical properties. Seashell nacre...
Site Response Analysis of Liquefiable Soil Employing Continuous Wavelet Transforms
Author(s) D. Chavan* T.G. Sitharam* P. Anbazhagan Abstract Propagation of the earthquake motion towards the ground surface alters both the acceleration and frequency content of the motion. Acceleration–time record and Fourier amplitude spectrum of the motion...
How Digital Engineering is Improved Project Delivery
Episode Info Jacobs senior associate director and practice group lead for intelligent asset management Steve Yule and Collins Engineers director of unmanned aircraft systems, artificial intelligence and reality modelling Barritt Lovelace join NCE editor Claire Smith...
Effects of Sulfate and Sulfuric Acid on Efficiency of Geopolymers as Concrete Repair Materials
Author(s) Rayed Alyousef, Ahmed Abdel Khalek Ebid, Ghasan Fahim Huseien, Hossein Mohammadhosseini, Hisham Alabduljabbar, Shek Poi Ngian and Abdeliazim Mustafa Mohamed Abstract Various geopolymer mortars (GPMs) as concrete repairing materials have become...
State of the Art Review of Reinforcement Strategies and Technologies for 3D Printing of Concrete
Author(s) Zhengyu Wu, ORCID,Ali M. Memari and Jose P. Duarte Abstract This state of the art review paper aims to discuss the results of a literature survey on possible ways to reinforce printed concrete based on existing reinforcement strategies. Just as...
Resilient Posttensioned Bridge Bent with Buckling Restrained Brace
Author(s) Ijan Dangol, S.M.ASCE; and Chris P. Pantelides, M.ASCE Abstract A new method for building seismically resilient bridges is investigated using Accelerated Bridge Construction (ABC) technologies. A hybrid two-column bridge bent with posttensioned...
Experimental Investigation of Postearthquake Vertical Load-Carrying Capacity of Scoured Reinforced Concrete Pile Group Bridge Foundations
Author(s) Lianxu Zhou; Michele Barbato, F.ASCE; and Aijun Ye Abstract Scouring of pile group foundations is a common phenomenon for cross-river bridges and can produce significant damage in earthquake-prone regions. This study experimentally investigated the...