{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,20]],"date-time":"2026-02-20T19:53:42Z","timestamp":1771617222950,"version":"3.50.1"},"reference-count":49,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2023,4,11]],"date-time":"2023-04-11T00:00:00Z","timestamp":1681171200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"FCT\/MCTES","award":["TDC\/ECI-CON\/28382\/2017"],"award-info":[{"award-number":["TDC\/ECI-CON\/28382\/2017"]}]},{"name":"FCT\/MCTES","award":["UIDB\/04029\/2020"],"award-info":[{"award-number":["UIDB\/04029\/2020"]}]},{"name":"FCT\/MCTES","award":["LA\/P\/0112\/2020"],"award-info":[{"award-number":["LA\/P\/0112\/2020"]}]},{"name":"R&amp;D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE)","award":["TDC\/ECI-CON\/28382\/2017"],"award-info":[{"award-number":["TDC\/ECI-CON\/28382\/2017"]}]},{"name":"R&amp;D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE)","award":["UIDB\/04029\/2020"],"award-info":[{"award-number":["UIDB\/04029\/2020"]}]},{"name":"R&amp;D Unit Institute for Sustainability and Innovation in Structural Engineering (ISISE)","award":["LA\/P\/0112\/2020"],"award-info":[{"award-number":["LA\/P\/0112\/2020"]}]},{"DOI":"10.13039\/501100001871","name":"Associate Laboratory Advanced Production and Intelligent Systems ARISE","doi-asserted-by":"publisher","award":["TDC\/ECI-CON\/28382\/2017"],"award-info":[{"award-number":["TDC\/ECI-CON\/28382\/2017"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Associate Laboratory Advanced Production and Intelligent Systems ARISE","doi-asserted-by":"publisher","award":["UIDB\/04029\/2020"],"award-info":[{"award-number":["UIDB\/04029\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001871","name":"Associate Laboratory Advanced Production and Intelligent Systems ARISE","doi-asserted-by":"publisher","award":["LA\/P\/0112\/2020"],"award-info":[{"award-number":["LA\/P\/0112\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Applied Sciences"],"abstract":"<jats:p>The aim of this paper is to study the effect of the organic matter (OM) content on the effectiveness of the soil stabilization process using the biopolymer xanthan gum. Five different artificial soils with an organic matter content in the range of 1.5 to 7.7% are subjected to unconfined compressive strength (UCS) and oedometer tests to evaluate their strength, stiffness and compressibility, respectively. These results are complemented by an analysis of SEM images. The results from the UCS tests show a positive effect of the stabilization process in terms of strength and stiffness in a range of an OM content of 1.5 to 5.5%, but a detrimental effect for a higher OM content (7.7%) is observed. Due to the hydration of the biopolymer\u2019s hydrogels, the compressibility tends to increase in specimens stabilized with xanthan gum. This effect is amplified for higher OM contents. The results of oedometer tests also show that the stabilization with xanthan gum brings about a significant decrease in the coefficient of consolidation, inducing an increase in the primary consolidation time.<\/jats:p>","DOI":"10.3390\/app13084787","type":"journal-article","created":{"date-parts":[[2023,4,12]],"date-time":"2023-04-12T02:08:11Z","timestamp":1681265291000},"page":"4787","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Effect of the Organic Matter Content on the Mechanical Properties of Soils Stabilized with Xanthan Gum"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8515-8664","authenticated-orcid":false,"given":"Paulo J. Venda","family":"Oliveira","sequence":"first","affiliation":[{"name":"Department of Civil Engineering, ISISE, ARISE, University of Coimbra, 3030-788 Coimbra, Portugal"}]},{"given":"Maria J. F. C. C.","family":"Reis","sequence":"additional","affiliation":[{"name":"Department of Civil Engineering, University of Coimbra, 3030-788 Coimbra, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2023,4,11]]},"reference":[{"key":"ref_1","unstructured":"IPCC (2022). Climate Change 2022\u2014Mitigation of Climate Change, IPCC AR6 WG III. Working Group III Contribution to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Chang, I., Im, J., and Cho, G.C. (2016). Introduction of microbial biopolymers in soil treatment for future environmentally-friendly and sustainable geotechnical engineering. Sustainability, 8.","DOI":"10.3390\/su8030251"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1073","DOI":"10.1007\/s10064-014-0621-9","article-title":"Stiffness parameters of municipal solid waste","volume":"73","author":"Gomes","year":"2014","journal-title":"Bull. Eng. Geol. 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