Cov tshauv ya thiab Cenospheres

Cov tshauv ya, ib yam khoom seem los ntawm cov chaw tsim hluav taws xob thermal uas siv thee hlawv, yog ib yam khoom siv pozzolanic uas paub tias yog ib qho khoom muaj nqis uas tuaj yeem ntxiv rau cov ntaub ntawv tsim kho kom tsim cov cementitious compounds thaum sib cuag nrog dej. Cov Cenospheres, cov khoom me me uas muaj cov duab kheej kheej uas feem ntau yog hom qhib qhov hauv qhov xwm txheej, yog ib qho ntawm cov khoom siv tseem ceeb tshaj plaws lossis cov khoom lag luam uas sib xyaw nrog cov tshauv ya. Qhov no yog vim muaj cov yam ntxwv tshwj xeeb ntawm cenospheres, xws li lub teeb yuag, kev ntws zoo, kev tsis sib haum xeeb ntawm cov tshuaj lom neeg, kev rwb thaiv tsev zoo, lub zog compressive siab, thiab kev ua kom sov tsawg, uas ua rau lawv siv dav hauv ntau daim ntawv thov kev lag luam. Cenospheres tau dhau los ua cov khoom siv uas xav tau heev ua cov khoom sau lossis cov khoom ntxiv hauv ntau daim ntawv thov tshwj xeeb, xws li hauv cov cement sib dua, cov khoom sib xyaw polymeric, cov rotors nres tsheb, thiab cov npog sib txawv, cov khoom siv cav diesel mullite-coated, thiab kev tiv thaiv hluav taws xob thiab kev nqus hluav taws xob. Cov ntawv thov rau cenospheres ua cov khoom siv tsim kho tau pom, xws li hauv cov khoom sib xyaw thermal rwb thaiv tsev sib dua, cov khoom siv suab nrov nrog cenosphere-reinforced cement thiab asphalt concrete, thiab cov khoom sib xyaw sib dua. Tsis ntev los no nws tau tshaj tawm tias cenospheres siv ua cov khoom ntxiv lossis cov khoom sau hauv polymer concrete matrix rau kev tsim cov kab sib xyaw thiab cov chaw pw tsheb ciav hlau sib xyaw. Nrog lawv cov spherical thiab hollow morphology, cenospheres muaj kev cia siab tshwj xeeb, nrog rau kev tiv thaiv siab rau kev tawg.
Qhov ceev ntawm cov cenospheres sib txawv ntawm 0.2 g / cc txog 2.6 g / cc. Qhov muaj cov khoom qis qis (Cov txheej txheem uas twb muaj lawm ntawm kev sib cais cenosphere tau muab faib ua ob pawg: kev sib cais ntub thiab kev sib cais qhuav. Lub tshuab sib cais ntub yog raws li qhov sib txawv ntawm qhov ceev ntawm cov khoom khov thiab cov kua nruab nrab: nrog rau cov txheej txheem no, cenospheres tuaj yeem rov qab tau los ntawm cov tshauv ya los ntawm kev sib cais ntawm lub ntiajteb txawj nqus-txoj kev sib cais ntawm lub dab dej. Qhov ua tau zoo ntawm kev sib cais ntub yog raws li qhov ntuj tsim ntawm cenospheres hauv nruab nrab, qhov kev sib sau ua ke ntawm cov khoom noj, qhov saum npoo ntawm cov khoom, thiab porosity ntawm cov khoom, thiab cov voj voog kho kom zoo. Txawm li cas los xij, qhov ua tau zoo yog txwv los ntawm kev cuam tshuam ntawm cov khoom ntom ntom ntawm cov tshauv ya, uas tiv thaiv cov khoom sib dua li dej kom tsis txhob khiav tawm ntawm qhov sib sau ua ke, yog li ntawd cuam tshuam kev nce ntawm cov khoom sib dua mus rau saum npoo. Qhov zoo ntawm txoj kev sib cais ntub yog lub peev xwm ntawm kev tau txais cov cenospheres qis qis, tsis muaj qhov tsis zoo ncaj qha los ntawm cov txheej txheem sib cais: txawm li cas los xij, qhov muaj av thiab dej yog qhov txhawj xeeb loj rau kev tsim khoom loj. Lwm qhov teeb meem yog qhov teeb meem ntawm kev yaj cov khoom phom sij rau hauv cov dej. Ib qho tsis zoo ntxiv yog qhov xav tau rau ib kauj ruam ziab ntxiv ua ntej siv ntxiv. Hauv cov nqe lus ntawm cov khoom zoo (tshwj xeeb tshaj yog rau cov tshauv ya hauv chav kawm C uas muaj cov calcium ntau), cov siv lead ua rau ntawm qhov chaw ntawm cov khoom me me thiab tom qab ntawd ua kom tawv thaum lub sijhawm ziab, yog li ntawd txwv tsis pub siv rau lwm yam kev siv. Kev sib cais qhuav yog lwm txoj hauv kev uas tsom mus rau kev kov yeej cov teeb meem ntawm kev sib cais ntub. Nrog rau txoj kev no, cov tshuaj lom neeg tseem tsis hloov pauv. Tsis tas li ntawd, tsis tas yuav tsum muaj theem ziab, yog li zam kev siv hluav taws xob: txawm li cas los xij, txoj kev no xav tau cov thev naus laus zis siab heev uas cuam tshuam nrog kev sib cais pneumatic, xws li lub tshuab cais cua, kom cais cov khoom me me tau zoo. Kev faib cua yog ib qho kev ua haujlwm uas cais cov khoom me me uas tawg raws li lawv qhov sib txawv ntawm qhov loj me, cov duab geometric, thiab qhov ceev hauv cov cua.