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

Edy Tonnizam Mohamad; Mohd Firdaus Md Dan@Azlan; Azizan Abd. Aziz; Olumorin Michael Maiye; Maybelle Liang

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

机译：含水量对热带风化页岩强度和各向异性指数的影响

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

机译：Moisturecontentisoneofthemostimportantfactorsandapowerfulmechanismmanipulatingtheengineeringpropertiesofrockonitsphysicalandmechanicalproperties.Thisissuebecomesmoresignificantinshaleasitpossessesfinelaminationstructureswhichtendtosplitunevenly，paralleltotheweaknessplane.Itbecomesmoreseverewhentherockmaterialissubjectedtohigherweatheringprocess.Thispaperaimstoinvestigatetheeffectofmoistureonthestrength，andanisotropyindex，IA（50）offreshtohighlyweatheredshalecollectedatAyerHitam，柔，Malaysia.Atotalof96samplesrepresentingvariousweatheringgradesweretestedforthispurpose.Thesamplesweretestedatvaryingmoisturebyimmersingtheminwateratdifferentdurationoftime.Theresultsrevealedthatthereisasignificantrelationshipamongweatheringgrades，moistureabsorption，strengthandanisotropyindexofshale.Themoistureabsorptionisdependentontheclaymineralspresentintherockmaterialwhichindirectlyaffectsthestrength.However，theresultshowsauniquepatternontherangeofanisotropyindexforvariousweatheringgrades.Shalewithhighermo isture含量和风化等级显示更高的各向异性指数范围。

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《The electronic journal of geotechnical engineering》 |2013年第2013期|共页
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Edy Tonnizam Mohamad; Mohd Firdaus Md Dan@Azlan; Azizan Abd. Aziz; Olumorin Michael Maiye; Maybelle Liang;
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The Effect of Moisture Content on the Strength and Anisotropy Index of Tropically Weathered Shale

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