Structural performance of alkali-activated soil ash versus soil cement

S Rios, N Cristelo, A Viana da Fonseca… - Journal of materials in …, 2016 - ascelibrary.org
Alkaline activation of fly ash (FA) was used to improve the mechanical performance of a silty
sand, considering this new material as a replacement for soil-cement applications, namely …

Optimum material ratio for improving the performance of cement-mixed soils

TA Pham, J Koseki, D Dias - Transportation Geotechnics, 2021 - Elsevier
The cement-mixed soils technique is an efficient solution to improve the ground
geomechanical properties in infrastructures and construction projects. This paper presents a …

Experimental study on artificial cemented sand prepared with ordinary Portland cement with different contents

D Li, X Liu, X Liu - Materials, 2015 - mdpi.com
Artificial cemented sand test samples were prepared by using ordinary Portland cement
(OPC) as the cementing agent. Through uniaxial compression tests and consolidated …

Calibration and experimental validation of a dynamic model of the train-track system at a culvert transition zone

C Alves Ribeiro, R Calçada… - Structure and Infrastructure …, 2018 - Taylor & Francis
This article describes the calibration and experimental validation of the dynamic model of
the train-track system at a culvert transition zone. The dynamic analyses were performed …

Getting high-quality samples in 'sensitive'soils for advanced laboratory tests

A Viana da Fonseca, J Pineda - Innovative Infrastructure Solutions, 2017 - Springer
Laboratory tests are well recognized as highly appropriate for defining the engineering
properties of geomaterials, in terms of constitutive law parameters for modeling geotechnical …

Silty sand stabilized with different binders

S Rios, AV da Fonseca, SS Bangaru - Procedia engineering, 2016 - Elsevier
The paper presents results of unconfined compression strength and seismic wave
measurements during curing on a silty sand stabilized with three type of binders …

Improved laboratory techniques for advanced geotechnical characterization towards matching in situ properties

A Viana da Fonseca, C Ferreira… - Deformation …, 2015 - ebooks.iospress.nl
Laboratory tests are well recognized as highly appropriate for defining the engineering
properties of geomaterials, in terms of constitutive law parameters for modeling geotechnical …

Evolution of the optimum ultrasonic testing frequency of alkali-activated soil–ash

C Ferreira, S Rios, N Cristelo… - Géotechnique …, 2021 - icevirtuallibrary.com
Monitoring the curing process of mixtures produced by soil, fly ash and alkaline solution can
be effectively performed by ultrasonic measurements of compression and shear wave …

An approach to derive strength parameters of residual soils from DMT results

N Cruz, C Rodrigues, AJPV Da Fonseca - 2014 - repositorio-aberto.up.pt
Residual soils show a specific mechanical behaviour classified as on-conventional when
compared with sedimentary transported soils, since the presence of a cemented matrix plays …

Shear wave velocities to monitor curing evolution of soils treated with alkali activated binders

S Rios, I Caetano, C Pinheiro… - E3S Web of …, 2024 - e3s-conferences.org
The use of alkali activated binders for soil improvement has been significantly increased in
the past decade indicating a significant interest in the use of alternative low carbon binders …