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A Unique Relationship Determining Strength of Silty/Clayey Soils - Portland Cement Mixes

Consoli, NC; Ferreira, PMV; Tang, CC; Marques, S; Festugato, L; Corte, MB; (2016) A Unique Relationship Determining Strength of Silty/Clayey Soils - Portland Cement Mixes. Soils and Foundations , 56 (6) pp. 1082-1088. 10.1016/j.sandf.2016.11.011. Green open access

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Abstract

This technical note advances the understanding of the key parameters controlling unconfined compressive strength (qu) of artificially cemented silty/clayey soils by considering distinct moisture contents, distinct specimen porosities (η), different Portland cement contents and any curing time periods. The qu values of the specimens moulded for each curing period were normalized (i.e. divided) by the qu attained by a specimen with a specific porosity/cement ratio. A unique relationship was found, establishing the relationship between strength for artificially cemented silty/clayey soils considering all porosities, Portland cement amounts, moisture contents and curing periods studied. From a practical viewpoint, this means that, at limit, carrying out only one unconfined compression test with a silty/clayey soil specimen, moulded with a specific Portland cement amount, a specific porosity and moisture content and cured for a given time period, allows the determination of a general relationship equation that controls the strength for an entire range of porosities and cement contents, reducing considerably the amount of moulded specimens and reducing projects development cost and time.

Type: Article
Title: A Unique Relationship Determining Strength of Silty/Clayey Soils - Portland Cement Mixes
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.sandf.2016.11.011
Publisher version: http://dx.doi.org/10.1016/j.sandf.2016.11.011
Language: English
Additional information: This manuscript version is made available under a Creative Commons Attribution Non-commercial Non-derivative 4.0 International license (CC BY-NC-ND 4.0). This license allows you to share, copy, distribute and transmit the work for personal and non-commercial use providing author and publisher attribution is clearly stated. Further details about CC BY licenses are available at https://creativecommons.org/licenses/. Access may be initially restricted by the publisher.
Keywords: Normalization, porosity, Portland cement, strength, fine grained soils, porosity/cement ratio
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1521063
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