Manual Liquid Limit Chishandiso

Manual Liquid Limit Chishandiso

Manual Liquid Limit Chishandiso (Casagrande) anoshandiswa kuona iyo inonyorova iyo ivhu rinopfuura kubva papurasitiki kusvika kumvura. Midziyo yacho ine gadziriso yekugadzirisa uye cam mechanism, kuputika kopul uye kapu inobviswa yerwendo inogadziriswa pachigadziko.

Iyo yekudyira-mhando yemhando yemugumo mita inoshandiswa kuyera muganho wemvura yevhu. Icho chishandiso chinoshandiswa pakugadzirwa uye kuvaka kuitira kuti vasiye marudzi ivhu, kuverenga zvisikwa zvakasikwa uye epurasitiki index.

Kuedza maitiro

1 zvese.

2. Kana idzo ivhu risina kuvhenganiswa nemvura yakakwana kuti isvike kuenderana, yakaenzana kuti ida kudonhedza nguva makumi matatu kusvika ku33 kusvika ku3 35 kusvika ku13 kusvika ku33 kusvika ku33 kusvika. Isa chikamu chevhu ivhu paste mundiro pamusoro payo chikafu chinobata ndiro yepazasi. Shandisa ivhu rekugadzirisa banga kudzvinyirira ivhu paste mune imwe chimiro, teerera nekuzvimanikidza kashoma sezvazvinogona, uye kudzivirira maruva kuti arege kusanganiswa muvhu. Shandisa banga rekugadzirisa renje kuti utsinye pamusoro peiyo ivhu pasita, uye chikamu chakakora chevhu chivharo chiri 1 cm gobvu. Ivhu rakawandisa rinodzoserwa kunzvimbo yekuvhiyiwa, uye iyo ivhu pasteti yakabviswa mumugove wedhishi neyekupedzisira kubva ku cam muteveri we cam muteveri. Sitiro-yakatsanangurwa, yakatsanangurwa slot inoumbwa. Kuti udzivise iyo Groove Great kubva pakubvaruka kana iyo ivhu pasteti inotsvedza mudanga, dzinosvika nhanhatu kubva kumberi kuti ubve kumashure kuti idzorere imwe groove, uye kurohwa kwega kwega kwakadzika zvishoma nezvishoma kusvika panguva yekupedzisira. Kukurukurirana kwakakosha nezasi kweiyo ndiro kunofanirwa kunge kwakanyorerwa nguva shoma sezvinobvira.

3 Rekodha nhamba yeHits inodiwa kune 1/2 inch kureba kweiyo groove yepasi kutaurirana.

4 Rekodhi. Bika kune uremu hwese pa230 ° ± 9 ° F (110 ° ± 5 °). Pakarepo mushure mekutonhora uye asati amuyirira mumvura adsorbed, inorema. Rekodha uremu kurasikirwa mushure mekuoma semvura huremu.

5. Fambisa iyo yakasara ivhu zvinhu mundiro kune ndiro inovhevha. Geza uye pakaomesa ndiro uye groover, uye kudzoreredza ndiro yekuedza kunotevera.

6. Shandisa ivhu zvinyorwa zvakatamisirwa kune chikafu chinopinda kuti uwedzere mvura kuti uwedzere kutsvaira kwevhu, uye ita zvinowanzoitika zvinoenderana nenzira iri pamusoro. Chinangwa ndechekuwana ivhu samples dzevakasiyana kusarudzika, uye huwandu hwemadonhwe hunodiwa kuti huveke majoini esitte inoyerera pamwe chete inopfuura kana isingasviki 25 times. Huwandu hwemadonhwe hwakawanikwa hunofanirwa kunge uri pakati pemakore gumi nemashanu kusvika makumi manomwe nemashanu, uye sampuli yeiyo inogara ichiitwa kubva kune yakaoma mamiriro kune iyo yakanyorova mamiriro muyedzo.

7. Kuverenga

kuverenga kwemvura yeWn yevhu, inoratidzwa sepesenti yeiyo yakaoma ivhu huremu;

WN = (WEVIRE WEVIRE

8. Dhirowa purasitiki kuyerera curve

Ronga 'plastiki kuyerera curve' pane imwe-logarithmic pepa; Iyo inomiririra hukama pakati pezviri zvemvura uye huwandu hwemakwenzi anodonhedza. Tora iyo yemukati zvemvura seAbscissa uye shandisa chiyero chemasvomhu, uye shandisa iyo nhamba yekudonha seyekudonha sedanho uye shandisa iyo logarithmic chiyero. Iyo yepurasitiki inoyerera curve mutsara yakatwasuka, iyo inofanira kupfuura nepakati-matatu kana anopfuura ekuyedza mapoinzi kusvika sezvinobvira.

9. Liquid muganho

PaCurve inoyerera, iyo yemvura mumadonhwe 25 madonhwe akatorwa seyemvura yemvura yevhu, uye kukosha kwakakomberedzwa kune iyo nhamba.

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