Improving the relationship between water intake and loss capacity of granite residual soil and contact Angle

Improving the relationship between water intake and loss capacity of granite residual soil and contact Angle | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 17 March 2025 V1 Latest version Share on Improving the relationship between water intake and loss capacity of granite residual soil and contact Angle Authors : Yin-Lei Sun , qingru Du [email protected] , Zheng-Ping Xiao , Xin-Long Zhu , Xin-Sheng Zhang , and Xian-Wei Zhang 0000-0002-0283-4493 Authors Info & Affiliations https://doi.org/10.22541/au.174221291.14533389/v1 163 views 92 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract Granite residual soils are highly sensitive to water, leading to softening and disintegration that poses serious risks to engineering geosafety. Traditional soil improvement methods focus on structural modifications, overlooking the crucial role of surface properties in hydraulic transport. This study introduces Octadecylamine (ODA) as a surface modifier, which alters the surface contact angle of the soil without affecting its internal structure. We explored the relationship between water ingress/egress capacity and contact angle using various tests (contact angle, water droplet infiltration, SWCC, water loss, SEM, disintegration). Results show that ODA increases the contact angle as water and ODA content rise, transitioning the soil from hydrophilic to hydrophobic. The soil-water characteristic curve analysis indicates that hydrophobicity reduces the soil’s water-holding capacity and decreases the hysteresis loop area. Additionally, the water loss and disintegration tests reveal enhanced evaporation and disintegration rates with increased contact angle, improving water stability. SEM analysis shows that the soil’s pore structure remains unchanged, confirming that the performance improvement is due to surface property changes, not structural alterations. This study presents a novel surface modification technique for mitigating the risks of granite residual soil, offering valuable insights for engineering protection. Supplementary Material File (image.pdf) Download 4.00 MB File (manuscript file.docx) Download 7.36 MB File (table.pdf) Download 221.30 KB Information & Authors Information Version history V1 Version 1 17 March 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords contact angle disintegration granite residual soil improvement mechanism water absorption-desorption capacity Authors Affiliations Yin-Lei Sun Yunnan University View all articles by this author qingru Du [email protected] Yunnan University View all articles by this author Zheng-Ping Xiao Yunnan University View all articles by this author Xin-Long Zhu Tongji Architectural Design Group co Ltd View all articles by this author Xin-Sheng Zhang Yunnan University View all articles by this author Xian-Wei Zhang 0000-0002-0283-4493 Chinese Academy of Sciences Wuhan Institute of Rock and Soil Mechanics View all articles by this author Metrics & Citations Metrics Article Usage 163 views 92 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Yin-Lei Sun, qingru Du, Zheng-Ping Xiao, et al. Improving the relationship between water intake and loss capacity of granite residual soil and contact Angle. Authorea . 17 March 2025. DOI: https://doi.org/10.22541/au.174221291.14533389/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . Format Please select one from the list RIS (ProCite, Reference Manager) EndNote BibTex Medlars RefWorks Direct import Tips for downloading citations document.getElementById('citMgrHelpLink').addEventListener('click', function() { popupHelp(this.href); return false; }); $(".js__slcInclude").on("change", function(e){ if ($(this).val() == 'refworks') $('#direct').prop("checked", false); $('#direct').prop("disabled", ($(this).val() == 'refworks')); }); View Options View options PDF View PDF Figures Tables Media Share Share Share article link Copy Link Copied! Copying failed. 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