Abstract:
Indasitiri yekuvaka inoita basa rinokosha mukuumba nyika yemazuva ano, ndeipi simendi ndiyo yekutanga chivakwa chivakwa. Kwemakore, vatsvagiri uye mainjiniya akapfuurira kutsvaga nzira dzekuvandudza kunaka uye kuita kwesimendi. Mumwe anokurudzira avenue anosanganisira kuwedzera kwekuwedzera, idzo calcium fomu rave mutambi anozivikanwa.
Suma:
SEENT chiitiko chakakosha chekuvaka uye zvinoda kuenderera mberi kugadzirisa kwekusangana nekuchinja kwediri yeindasitiri. Kuwedzera kwekuwedzera kwakaratidza kuve zano rekubudirira rekuvandudza kwakasiyana siyana kwesimendi. Calcium fomu, yakagadzirwa yakagadzirwa nekuita kwecalcium oxide uye mafomu acid, yakakwezva kutarisisa kune mukana wayo wekuvandudza zvinhu zve simende. Chinyorwa ichi chinovavarira kusimbisa nzira dzenzira iyo calcium yakaomesesa inokanganisa hunhu uye kushanda.
Calcium fomu yemakemikari zvinhu:
Asati amutswa mumhedzisiro yecalcium yakaumbwa pa cement, inokosha kuti inzwisise kemik yemakemikari yekuwedzera uku. Calcium fomu ndeye chena crystalline poda nemakemikari formula ca (HCOO) 2. Iyo inonzi mvura-ine manyoro uye ine hygroscopic zvivakwa. Iyo yakasarudzika musanganiswa wecalcium uye gadzira ions inopa chaiyo yakatarwa zvivakwa, zvichiita kuti zviite zvakaringana zvekushandisa, kusanganisira kuvandudzwa kwesimendi.
Michina:
Kubatanidzwa kweCalcium kuumba mumidziyo yemasimendi kunounza mashandiro akati wandei anopa mukugadzirisa kwekuita. Imwe nzira huru inosanganisira yakawedzera simenti hydration. Calcium gadzira zviito secetalyst, inosimudzira kuumbwa kwe hydrate senge calcium silteum hydrate (csh) neEttringe. Izvi zvinokonzeresa mhedzisiro yekukurumidza kugara nguva uye kuwedzera yekutanga simba rekusimbisa.
Uyezve, calcium fomu inogadzira zviitiko sepaiti yenyongororo ye hydrate yakakunda, ichikanganisa microdhi yeiyo coment matrix. Uku kugadziridzwa kunoguma ne denser uye yakawanda yunifomu yekuparadzira, ichibatsira kuvandudza kusimba uye kuderedza kufungidzira.
Pamusoro pezvo, calcium fomu inotora chikamu mune iyo pozzolantic maitiro, painoita necalcium hydroxide kuumba imwe csh gel. Kuita uku hakuiti chete kuti uwedzere kusimudzira asiwo kunoderedza njodzi yekunonoka ettrinde forumbation (def), chiitiko chinogona kukanganisa kusimba kwenguva refu.
Kuvandudzwa kweMhando yeComent:
Kutanga Simba Resimba:
Kugona kweCalcium fomu yekufambisa hydration yakashandura mukuvandudzwa kwakakosha mukutanga kusimba kwesimba. Izvi zvakakosha kuitira mabasa ekuvaka uko simba rinoda kuwanikwa nekukurumidza. Iyo yakakwirisa nguva yekumisikidzwa yakakurudzirwa neCalcium fomu inogona kuguma nekukurumidza fomu yekubvisa uye kukurumidza kufambira mberi kwekuvaka.
Yakavandudzwa Durability:
Calcium fomu inowedzerwa kuti ichinje hutachiona hwechisimba, zvichikonzera mune zvimwe zvinhu zvinogara. Iyo yakawedzerwa dentity uye yunifomu yekugovera hydrate inopa kuwedzera kuramba kurwisa kwemakemikari, free-thaw matanda, uye kupfeka. Naizvozvo, chimiro chemument chakabatwa necalcium fomu inoratidza hupenyu hwebasa refu.
Deredza kufungidzira:
Chimwe chezvinhu zvakakosha zvinokanganisa kujairwa kwekongiri ndiko kufungidzira kwayo. Calcium fomu inoderedza kubvumirana nekukanganisa chimiro chePore cheSetement Matrix. Kuumbwa kweiyo dense matrix ine fures pores inogumira iyo inokonzeresa iyo mvura uye zvinhu zvehasha, nekudaro uchisimudzira kuramba kwavo kuderera.
Kuderedza yeAlkali Silica Reaction (ASR):
Zvidzidzo zvakawana kuti Calcium fomu inogona kuderedza njodzi yeAlkali-silica reaction, chiitiko chinokuvadza chinogona kukonzera kuzvimba kweGel uye kupaza kongiri. Nekukanganisa chimiro chePore uye chemakemikari emakemikari weiyo simende slurry, calcium fomu inobatsira inobatsira kudzikisira mukana wekukuvara kweASR-kwakabatana.
Kuzviita Kwekuita:
Yakavandudzwa Machina:
Mhedzisiro yeCalcium inoumbika paiyo hydration ine hydrate yakanaka pakubata kwejongwe nyowani. Yakakwirisa yakatarwa nguva uye yakawedzera hydration kinetics inobatsira kuvandudza maitiro ekuyerera, kufambisa kuiswa uye kuenzanisa kongiri. Izvi zvinobatsira zvakanyanya uko kurererwa kwekuiswa kuri kutsoropodza.
Tembiricha Control:
Iko kushandiswa kwe calcium kwakaumba mune simende kunobatsira kudzikisira mhedzisiro yekupisa kwakanyanya panguva yekuporesa. Kukurudzira kuseta nguva kunokonzeresa muCalcium fomu kunogona kukurumidza kukurumidza kukura uye kuderedza kusakwana kwekongiri kune tembireti kune zvinetso zvine chekuita nekuparadza.
Sustineability kufunga:
Calcium fomu ine zvivakwa zvinosangana nezvinangwa zvekusimbisa zveindasitiri yekuvaka. Yayo pozzocalanculation yekuona inobata mashandisirwo emarara, uye kukanganisika kwaro pane kujairwa uye kuwanda kunobatsira pakudzora kwezvakatipamhama zvine chekuita nekutsiva zvimisikidzwa.
Zvinonetsa uye kufunga:
Nepo mabhenefiti ekubatanidza calcium akaomesesa mumasimende akajeka, matambudziko angangoita uye zvisingakwanisi kufungwa nezvazvo. Izvi zvinogona kusanganisira kuwedzera mutengo, zvinogona kutaurirana nezvimwe zvisanganiswa, uye kudikanwa kwekunyatso chenjera dosage control kuti udzivise zvakaipa. Pamusoro pezvo, kushanda kwenguva refu uye kusakwana kwecalcium fomu-yakarapwa kongiri pasi pemamiriro ezvinhu epamhepo anodzivirira nekudzokorora uye zvidzidzo zvemunda.
Mukupedzisa:
Kusanganisira calcium kwakaumba kuita simende iri nzira yekuvimbisa yekuvandudza kunaka uye kuita kwezvinhu izvi zvakakosha zvekuvaka. Kuburikidza neicho chimiro chayo chemuitiro chemuitiro, calcium fomu inowedzera hydration, inopa microction ruzivo uye inopa huwandu hwenzvimbo dzinodiwa, kusanganisira kutanga kusimba kwesimba, kusimba kwekuvandudza uye kuderedzwa kwekushayiwa. Sezvo indasitiri yekuvaka ichiramba ichishanduka, basa rekuzvidzwa senge calcium rakaumbwa muzvivakwa zvekusimbisa zvinhu zvinogona kunge zvichikosha. Kuwedzera kutsvagisa uye zvinoshanda zvinoshanda hazvizivikanwe zvichiratidza kuzere kwakakwana uye kwakakwana kushandiswa kweCalcium kuumbwa, kuchiva nzira yekuwedzera zvinhu zvinopesana uye zvakarongeka.
Kutumira Nguva: Dec-05-2023