The Effect of Moisture Content on the Strength and Anisotropy Index of Tropically Weathered Shale

Electronic journal of geotechnical engineering

Olumorin Michael Maiye²  Mohd Firdaus Md Dan@Azlan⁴  Maybelle Liang⁵  Edy Tonnizam Mohamad³  Azizan Abd. Aziz¹ 

[1] Assoc. Prof. Ir. At Department of Infrastructure and GeomaticFaculty of Civil Engineering and Envionment; Universiti Tun Hussein Onn Malaysia,Johor; [e-mail];Postgraduate Student at Department of Geotechnics and Transportation; Faculty of Civil Engineering; Universiti Teknologi Malaysia, Skudai, Johor;Assoc. Prof., Dr. atDepartment of Geotechnics and TransportationFaculty of Civil Engineering; Universiti Teknologi Malaysia, Skudai, [e-mail];Postgraduate Student at Department of Infrastructure and GeomaticFaculty of Civil Engineering and Envionment; Universiti Tun Hussein Onn Malaysia,Johor; [e-mail];Postgraduate Student at Department of Geotechnics and TransportationFaculty of Civil Engineering; Universiti Teknologi Malaysia, Skudai, [e-mail]

关键词: Moisture content;    tropically weathered shale;    strength;    anisotropy;   

DOI  :  

来源: Oklahoma State University

【 摘 要 】

Moisturecontentisoneofthemostimportantfactorsandapowerfulmechanismmanipulatingtheengineeringpropertiesofrockonitsphysicalandmechanicalproperties.Thisissuebecomesmoresignificantinshaleasitpossessesfinelaminationstructureswhichtendtosplitunevenly,paralleltotheweaknessplane.Itbecomesmoreseverewhentherockmaterialissubjectedtohigherweatheringprocess.Thispaperaimstoinvestigatetheeffectofmoistureonthestrength,andanisotropyindex,Ia(50)offreshtohighlyweatheredshalecollectedatAyerHitam,Johor,Malaysia.Atotalof96samplesrepresentingvariousweatheringgradesweretestedforthispurpose.Thesamplesweretestedatvaryingmoisturebyimmersingtheminwateratdifferentdurationoftime.Theresultsrevealedthatthereisasignificantrelationshipamongweatheringgrades,moistureabsorption,strengthandanisotropyindexofshale.Themoistureabsorptionisdependentontheclaymineralspresentintherockmaterialwhichindirectlyaffectsthestrength.However,theresultshowsauniquepatternontherangeofanisotropyindexforvariousweatheringgrades.Shalewithhighermoisturecontentandweatheringgradeexhibitshigherrangeofanisotropyindex.

【 授权许可】

Unknown