Results 51 to 60 of about 1,132 (183)

State of the Practice − Sub‐Aqueous In‐Situ Solidification for Contaminated Sediment Remediation

Remediation Journal, Volume 36, Issue 4, Autumn 2026.
ABSTRACT In‐situ solidification (ISS) has emerged as a cost‐effective and versatile technology for sediment remediation, particularly for addressing contamination at greater sediment depths. This paper evaluates ISS in the context of conventional sediment remediation approaches, highlighting its advantages, design and implementation considerations, and
Michael W. Sabulis, Ryan S. Sheaffer, Rory Kilkenny, Ben Gezon, Paul C. Jansen, Tony Moran, Julia Farr, Jule Carr, Grant Wallace   +8 more
wiley   +1 more source

Performance of cement-stabilized weak subgrade for highway embankment construction in Southeast Nigeria

International Journal of Geo-Engineering, 2022
Soils with poor shear strength and high compressibility underlie the wetlands of southern Nigeria. They are susceptible to intolerable settlements and account for greater than 60% of the soils in the region.
Chukwuka Ifediniru, Nnamdi E. Ekeocha
doaj   +1 more source

Behavior of Soil Subgrade Strength with Saturation

, 2022
The traffic volume counts to be carried and the strength of the subgrade soil are used to design the different levels of pavement that must be placed over it. The strength of the subgrade is commonly expressed as a ratio known as the California Bearing Ratio, abbreviated as CBR. When the subgrade is weaker, thicker layers are required, whereas when the
openaire   +1 more source

Polyampholyte polymer as a stabiliser for subgrade soil

International Journal of Pavement Engineering, 2016
AbstractThis study evaluates the potential of selected ionic polymers to act as pavement subgrade binders. Investigations were based on their relative performance with a Qatari soil which was selected as typical of a pavement subgrade to be found in the Middle East and North African region.
Rodriguez, Ana K., Ayyavu, Chandramohan, Iyengar, Srinath R., Bazzi, Hassan S., Masad, Eyad, Little, Dallas, Hanley, Howard J. M.   +6 more
openaire   +2 more sources

Mix Proportion of Fly Ash Concrete Based on the Strength Contribution Ratio

JAPAN ARCHITECTURAL REVIEW, Volume 9, Issue 1, January–December 2026.
ABSTRACT This study aims to expand the use of fly ash concrete (FAC). Based on an experimental investigation of k values or the contribution of FA addition to the strength of ordinary Portland cement or Portland blast‐furnace slag cement type B, we propose and validate an environmentally friendly mix design for FAC.
Kenji Nishikigi, Yasuhiro Dosho, Phuong Dao Thi, Naoto Kondo   +3 more
wiley   +1 more source

Evaluation of Lightweight Soil as a Subgrade Material

Journal of the Korean Society of Road Engineers, 2013
PURPOSES : It is to evaluate lightweight soil as a subgrade material based on mechanical tests and calculation of pavement performance. METHODS : In this research, various contents of cement and air foam are used to make lightweight soil using wasted dredged soil.
Dae-Wook Park, Viet Hai Vo
openaire   +2 more sources

Impact of Alignment Parameters on Train Dynamics and Structure Vibration in Curved Floating Slab Tracks

Engineering Reports, Volume 8, Issue 1, January 2026.
This study investigates the impact of alignment parameters on train dynamic responses and structural vibrations in floating slab tracks during curved train operations, utilizing a mathematical model to predict and evaluate driving safety and structural vibration behavior.
Wei Yuan, Jian Xie, Chuanzhen Zang, Xuyou Long   +3 more
wiley   +1 more source

Photovoltaic‐Assisted Energy Optimization for High‐Speed Train Performance in South Africa Intercity Electric Rail Corridors

The Journal of Engineering, Volume 2026, Issue 1, January/December 2026.
ABSTRACT Decarbonizing the intercity rail in sub‐Saharan Africa requires the use of energy architectures that go beyond traditional grid reliance at the expense of traction performance. This paper introduces a novel photovoltaic (PV)‐assisted hybrid traction topology for a 42 km Pretoria–Sandton rail corridor in South Africa, where between‐rail PV ...
Chinedu T. Obe, Nnamdi I. Nwulu
wiley   +1 more source

Influence of Asphalt Emulsion Stabilization on Pavement Structural Behavior and Life Cycle Assessment (LCA)

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
Assessing pavement sustainability requires jointly evaluating structural performance and environmental impacts, yet these dimensions are often analyzed separately. This study proposes an integrated framework combining mechanistic–empirical pavement design and life cycle assessment (LCA) to quantify the structural–environmental trade‐off associated with
Alexandre Simas de Medeiros, Marina Donato, Marcelino Aurélio Vieira da Silva, Shikha Binwal   +3 more
wiley   +1 more source

Comparative analysis of volume change behavior of expansive road subgrades stabilized with waste paper sludge

Scientific Reports
Expansive soils have a high tendency for volume change in case of fluctuations in moisture content, potentially causing significant damage to light structures, particularly road pavements. This paper investigates the influence of waste paper sludge ( $$\:
Muhammed TANYILDIZI, İslam GÖKALP, Abdülhakim ZEYBEK, Volkan Emre UZ   +3 more
doaj   +1 more source