Manual Liquid Limit Chipangizo

Manual Liquid Limit Chipangizo

Manual Liquid Limit Device (Casagrande) amagwiritsidwa ntchito kudziwa chinyezi chomwe dothi limadutsa kuchokera ku pulasitiki kupita ku madzi.Zipangizozi zimakhala ndi makina osinthika a crank ndi cam, chowongolera chowombera ndi kapu yamkuwa yochotseka yoyikidwa pansi.

Dish mtundu wa madzi malire mita ntchito kuyeza madzi malire a nthaka.Ndi zida zomwe zimagwiritsidwa ntchito popanga ndi kupanga kuti zigawike mitundu ya dothi, kuwerengera kusasinthika kwachilengedwe ndi index ya pulasitiki.

Njira yoyesera

1. Ikani chitsanzo cha dothi mu mbale ya nthunzi, onjezerani 15 mpaka 20 ml ya madzi osungunuka, gwedezani mobwerezabwereza ndikuukanda ndi mpeni wowongolera nthaka mpaka mutasakanizidwa bwino, kenaka yikani 1 mpaka 3 ml ya madzi nthawi iliyonse, ndikusakaniza bwino. malinga ndi njira yomwe ili pamwambayi.zonse.

2. Dothi likasakanizidwa ndi madzi okwanira kuti ligwirizane, ndizofanana ndi kugwetsa maulendo 30 mpaka 35 kuti muphatikize.Ikani gawo la phala ladongo mu mbale pamwamba pomwe mbale imakhudza pansi.Gwiritsani ntchito mpeni wosinthira dothi pokanikizira phala la dothi kuti likhale lofanana, tcherani khutu pokanikizira kangapo momwe mungathere, ndikuteteza kuti matuza asasakanizidwe munthaka.Gwiritsani ntchito mpeni wosinthira dothi kuti muzitha kusalaza pamwamba pa phala, ndipo gawo lokhuthala kwambiri la dothi ndi 1 cm wokhuthala.Dothi lowonjezera limabwezeretsedwa ku mbale yotulutsa nthunzi, ndipo phala la dothi mu mbaleyo limaphwanyidwa m'mimba mwake ndi groover kuchokera kwa wotsatira cam.Malo odziwika bwino, ofotokozedwa bwino amapangidwa.Pofuna kupewa m'mphepete mwa poyambira kung'ambika kapena phala la dothi likutsetsereka m'mbale, zikwapu zosachepera zisanu ndi chimodzi kuchokera kutsogolo kupita kumbuyo ndi kumbuyo kupita kutsogolo zimaloledwa kulowa m'malo amodzi, ndipo sitiroko iliyonse imakula pang'onopang'ono mpaka nthawi yomaliza.Kulumikizana kwakukulu ndi pansi pa mbale kuyenera kuwerengedwa kangapo momwe mungathere.

3. Tembenuzani chogwiririra F pa liwiro la kuzungulira kawiri pa sekondi iliyonse kuti mbale ya dothi ikwere ndi kutsika mpaka magawo awiri a dothi akhudze pansi pa poyambira pafupifupi 1/2 inchi (12.7 mm).Jambulani kuchuluka kwa kugunda komwe kumafunikira kuti mugwirizane ndi 1/2 inchi kutalika kwa groove pansi.

4. Dulani chidutswa cha dothi chofanana ndi kagawo kuchokera kumbali ya nthaka kupita kumbali, yomwe m'lifupi mwake imakhala yofanana ndi m'lifupi mwake ndi mpeni wodula nthaka, kuphatikizapo dothi lotsekedwa, ndikuyikeni mubokosi loyenera lolemera; yesani ndi kuphatikiza.Lembani.Kuwotcha mpaka kulemera kosalekeza pa 230 ° ± 9 ° F (110 ° ± 5 °).Mwamsanga pambuyo kuzirala ndi pamaso kuyamwa mu adsorbed madzi, kulemera.Lembani kuwonda mutatha kuyanika ngati kulemera kwa madzi.

5. Sunthani zotsalira za dothi mu mbale kupita ku nthunzi.Tsukani ndi kupukuta mbale ndi groover, ndikuyikanso mbale kuti muyesenso.

6. Gwiritsani ntchito dothi lomwe lasunthidwa m'mbale yomwe imatuluka nthunzi kuti muwonjezere madzi kuti nthaka ikhale yamadzimadzi, ndipo yeseraninso kawiri motsatira njira yomwe ili pamwambayi.Cholinga chake ndikupeza zitsanzo za dothi zosakanikirana mosiyanasiyana, ndipo kuchuluka kwa madontho ofunikira kuti mfundo za dothi zidutse pamodzi zimapitilira kapena kuchepera ka 25.Chiwerengero cha madontho omwe akupezeka ayenera kukhala pakati pa 15 ndi 35 nthawi, ndipo zitsanzo za nthaka nthawi zonse zimachokera kumalo owuma kupita kumalo onyowa poyesedwa.

7. Kuwerengera

a Kuwerengera kuchuluka kwa madzi munthaka WN, kufotokozedwa ngati kuchuluka kwa kulemera kwa nthaka youma;

WN=(kulemera kwamadzi×kulemera kwa nthaka youma)×100

8. Jambulani pulasitiki yolowera pamapindikira

Konzani 'pulasitiki yokhotakhota' pa pepala la semi-logarithmic;imayimira mgwirizano pakati pa madzi ndi chiwerengero cha madontho a mbale.Tengani madzi ngati abscissa ndikugwiritsa ntchito sikelo ya masamu, ndipo gwiritsani ntchito kuchuluka kwa mathithi monga ordinatere ndikugwiritsa ntchito sikelo ya logarithmic.Mphepete mwa pulasitiki yothamanga ndi mzere wowongoka, womwe uyenera kudutsa m'mayeso atatu kapena kuposa momwe mungathere.

9. Malire amadzimadzi

Pamayendedwe othamanga, madzi omwe ali pa madontho 25 amatengedwa ngati malire amadzimadzi a nthaka, ndipo mtengowo unazunguliridwa ndi chiwerengero.

---

Zam'mbuyo: Laminar otaya Benchi Yoyera

Ena: 200TON Manual Concrete Block Compressive Strength Testing Machine

---