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Idivayisi ye-Manual Liquid Limit

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Idivayisi ye-Manual Liquid Limit

I-Manual Liquid Limit Device (Casagrande) isetshenziselwa ukunquma umswakama lapho inhlabathi yobumba idlula khona isuka kupulasitiki iye esimweni esiwuketshezi.Amadivayisi aqukethe i-crank elungisekayo kanye ne-cam mechanism, ikhawunta yokushaywa kanye nenkomishi yethusi ekhishwayo efakwe kusisekelo.

Imitha yomkhawulo we-liquid yohlobo lwesitsha isetshenziswa ukukala umkhawulo owuketshezi enhlabathini.Kuyimpahla esetshenziselwa ukuklama nokwakha ukuze kuhlukaniswe izinhlobo zenhlabathi, ukubala ukungaguquguquki kwemvelo kanye nenkomba yepulasitiki.

Inqubo yokuhlola

1. Faka isampula yomhlabathi esitsheni esihwamukayo, engeza u-15 kuya ku-20 ml wamanzi acwecwe, ugovuze ngokuphindaphindiwe futhi uxove ngommese wokulungisa inhlabathi kuze kuxutshwe kahle, bese ufaka u-1 kuya ku-3 ml wamanzi isikhathi ngasinye, futhi uhlanganise kahle. ngokwendlela engenhla.konke.

2. Uma inhlabathi ixubene namanzi anele ukuze ifinyelele ukuvumelana, kufana nokudinga ukwehla izikhathi ezingu-30 kuya kwezingu-35 ukuze kuhlanganiswe.Beka ingxenye yokunamathisela kobumba esitsheni esingenhla lapho isidlo sithinta ipuleti elingezansi.Sebenzisa ummese wokulungisa inhlabathi ukuze ucindezele inhlabathi enamathisele esimweni esithile, qaphela ukuyicindezela izikhathi ezimbalwa ngangokunokwenzeka, futhi uvimbele amabhamuza ukuba angaxutshwa enhlabathini enamathiselwe.Sebenzisa ummese olungisa inhlabathi ukuze ubushelelezi ingaphezulu lenhlabathi enamathiselwe, futhi ingxenye ewugqinsi yenhlabathi enamathelayo ingu-1 cm ubukhulu.Umhlabathi oweqile ubuyiselwa esitsheni esihwamukayo, futhi inhlabathi enamathiselwe esitsheni igaywa ngobubanzi nge-groover evela kumlandeli we-cam.I-slot echazwe kahle, echazwe kahle iyakhiwa.Ukuze uvimbele unqenqema lwe-groove ukuthi lungadabuki noma inhlabathi enamathiselwe inhlabathi ishelela esitsheni, okungenani imivimbo eyisithupha ukusuka phambili ukuya emuva nangemuva kuya phambili ivunyelwe ukuthatha indawo yomsele owodwa, futhi ukushaya ngakunye kuya kujula kancane kancane kuze kube okokugcina.Ukuxhumana okubalulekile phansi kwesitsha kufanele kufakwe amaphuzu izikhathi ezimbalwa ngangokunokwenzeka.

3. Vula isibambo se-crank F ngesivinini esingama-revolution angu-2 ngomzuzwana ukuze wenze ipuleti lenhlabathi likhuphuke liphinde liwe kuze kube yilapho izingxenye ezimbili zenhlabathi enamathiselayo zithinta phansi emseleni cishe ngo-1/2 intshi (12.7 mm).Rekhoda inani lamahithi adingekayo kubude obuyi-1/2 intshi yokuxhumana okungaphansi kwe-groove.

4. Sika ucezu lwenhlabathi nge-slot kusuka ohlangothini lwenhlabathi kuya ohlangothini, ububanzi balo obulingana nobubanzi bommese wokusika umhlabathi, kufaka phakathi inhlabathi endaweni evaliwe, uyibeke ebhokisini lokukala elifanele, yikale uyihlanganise.Qopha.Bhaka ngesisindo esingaguquki ku-230°±9°F (110°±5°).Ngokushesha ngemva kokupholisa nangaphambi kokumunca emanzini adsorbed, kala.Qopha ukuncipha kwesisindo ngemva kokoma njengesisindo samanzi.

5. Hambisa inhlabathi esele esitsheni uyiyise esitsheni esihwamukayo.Geza futhi womise isitsha kanye ne-groover, bese ulayisha kabusha isitsha ngokuhlolwa okulandelayo.

6. Sebenzisa inhlabathi egudluzwe endishini ehwamukayo ukuze ungeze amanzi ukuze ukhuphule ukugeleza komhlabathi, futhi wenze okungenani izivivinyo ezimbili ezengeziwe ngokwale ndlela engenhla.Inhloso ukuthola amasampula omhlabathi wokungaguquguquki okuhlukile, futhi inani lamaconsi adingekayo ukwenza amalunga enhlabathi enamathelayo ageleze ndawonye lingaphezu noma lingaphansi kwezikhathi ezingama-25.Inani lamaconsi atholiwe kufanele libe phakathi kuka-15 no-35 izikhathi, futhi isampula yomhlabathi ihlale yenziwa kusukela esimweni esomile kuya esimweni esimanzi ekuhlolweni.

7. Ukubala

a Bala inani lamanzi WN enhlabathini, evezwa njengephesenti lesisindo senhlabathi eyomile;

WN=(isisindo samanzi×isisindo senhlabathi eyomile)×100

8. Dweba ijika lokugeleza kwepulasitiki

Hlela 'ijika lokugeleza kwepulasitiki' ephepheni le-semi-logarithmic;limelela ubuhlobo phakathi kokuqukethwe kwamanzi kanye nenani lamaconsi esitsha.Thatha okuqukethwe kwamanzi njenge-abscissa futhi usebenzise isikali sezibalo, futhi usebenzise inombolo yokuwa njenge-ordinate futhi usebenzise isikali se-logarithmic.Ijika lokugeleza kwepulasitiki liwumugqa oqondile, okufanele udlule amaphuzu amathathu noma ngaphezulu okuhlola ngangokunokwenzeka.

9. Umkhawulo wamanzi

Ejini lokugeleza, okuqukethwe kwamanzi ngamaconsi angu-25 kwathathwa njengomkhawulo we-liquid wenhlabathi, futhi inani lahlanganiswa laba inani eliphelele.

i-liquid umkhawulo wemishini

Imishini yaselabhorethri usimende ukhonkolo5Imininingwane yokuxhumana


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