Indlela ye-Celsulose Ether iyalibalisa i-hydration cement hydration

I-Cellulose Afers isetshenziswa kakhulu embonini yezokwakha njengezengezo ezintweni ezisekelwa ngukhonkolo ngenxa yamandla abo okulawula i-Rheology, ngcono ukusebenza. Isicelo esisodwa esibalulekile se-cellulose i-Teshers ibambezele i-pement hydration. Lokhu kubambezeleka ku-hydration kubalulekile ezimweni lapho kudingeka khona izikhathi zokubeka izilungiselelo, njengokuthi ekuhambeni kwesimo sezulu esishisayo noma lapho uhambisa ukhonkolo amabanga amade. Ukuqonda indlela ngemuva kwendlela yokuphuza i-cellulose iThember Pement Hydration ibalulekile ekwakheni ukusetshenziswa kwawo kwizicelo zokwakha.

ISINGENISO KWESITOLO SAMAHHALA
Ngaphambi kokuphuza ngendlela ye-cellulose iThember ukubambezela i-hydration cement hydration, kubalulekile ukuqonda inqubo ye-hydration yosekhulile uqobo. Usimende uyisithako esibalulekile ngokhonkolo, futhi i-hydration yayo ukusabela okuyinkimbinkimbi kwamakhemikhali okubandakanya ukuhlangana kwamanzi ngezinhlayiya zensimbi, okuholela ekwakhiweni kwezinto eziqinile neziqinile.

Lapho amanzi efakwa ku-celte, ukusabela okuhlukahlukene kwamakhemikhali kwenzeka, ngokuyinhloko kubandakanya i-hydrate ye-compless yamasimende, njenge-trialcium bulication (C3S), i-dilycium silicate (C2S), ne-tetracalcium alumino-ferrite (C4AF) (C4AF) (C4AF). Lokhu kusabela kukhiqiza i-gelrate ye-calcium buliate hydrate (Csh), i-calcium hydroxide (ch), nezinye izinhlanganisela, ezinikela kumandla nokuqina kokhonkolo.

Indima ye-Cellulose I-Tesher ekubambezeleni i-hydration
I-Cellulose Tashers, enjenge-methyl cellulose (MC), i-Hydroxyethyl cellulose (HPMC), kanye ne-Hydroxypropyl methylcellulose (HPMC), zivame ukusetshenziswa njengama-polymer ancibilikisa amanzi ezintweni ezisetshenziswayo zikasimende. Lezi izengezo zisebenzisana nezinhlayiya zamanzi kanye nosimende, zakha ifilimu evikelayo ezungeze amasimu. Ukubambezeleka kwe-Cement Hydration okubangelwa izipho ze-cellulose kungabikwa ezihlathini eziningana:

Ukugcinwa kwamanzi: Abathengisi beCellulose banomthamo ophakeme wokugcina amanzi ngenxa yemvelo yabo ye-hydrophilic nekhono lokukha izixazululo ze-viscous. Uma ungezwe kuma-Cenmenticial mixtures, angagcina inani elithile lamanzi, anciphise ukutholakala kwamanzi okusabela kosimende we-hydration. Lo mkhawulo wokutholakala kwamanzi wehlisa inqubo ye-hydration, ukunweba isikhathi sokhonkolo.

Isithiyo esingokomzimba: I-Cellulose Tashers yakha umgoqo ongokomzimba ozungeze izinhlayiya, evimbela ukufinyelela kwamanzi endaweni esosimende. Lesi sivimbelo sinciphisa ngempumelelo izinga lokungena kwamanzi libe izinhlayiya zokonga, ngaleyo ndlela linciphise ukusabela kwe-hydration. Ngenxa yalokhu, inqubo ye-hydration ephelele iyabambezeleka, okuholela ezikhathini zokubeka isikhathi eside.

I-REVERACE ADSIDSPRENT: Abathengisi beCellulose bangakwazi i-adsorb ebusweni bezinhlayiya zensimbi ngokusebenzisa ukusebenzisana ngokomzimba okufana ne-hydrogen bonding kanye ne-van der Waals Forces. Le adsorption inciphisa indawo engaphezulu etholakalayo yokusebenzisana kwamanzi, kuvimbela ukusungulwa kanye nokuthuthuka kokuphendula kwe-hydration. Ngenxa yalokho, ukubambezeleka ku-Cement Hydration kuyabonakala.

Ukuxhumana nge-calcium ion: Abathengisi beCellulose bangasebenzisana ne-calcium ion ekhishwe ngesikhathi sokushisa ngosimende. Lokhu kusebenzisana kungaholela ekwakhekeni kwezakhiwo noma imvula yosawoti we-calcium, okuthi enye yehlise ukutholakala kwama-calcium ions ngokubamba iqhaza ekuphenduleni kwe-hydration. Lokhu kuphazamiseka ngenqubo yokushintshaniswa kwe-Ion kunomthelela ekubambezelweni ku-yment hydration.

Izici ezithonya ukubambezeleka ku-hydration
Izici eziningana zinomthelela ezingeni lokuthi u-cellulose uThembele ukubambezela i-hydration yesimende:

Thayipha kanye nokuhlushwa kwezimpi ze-cellulose: izinhlobo ezahlukene ze-cellulose i-Telsose Ibonisa amazinga ahlukahlukene wokubambezeleka kokulibaziseka kwe-cydration. Ngaphezu kwalokho, ukugcwaliseka kwe-cellulose izithathekisa emhlanganweni oqinisekisiwe kudlala indima ebalulekile ekunqumeni ukubambezeleka kokubambezeleka. Ukugxila okuphezulu ngokuvamile kuholela ekubambezelweni okwengeziwe.

Ubungako bezinhlayiyana kanye nokusatshalaliswa: ubukhulu bezinhlayiyana kanye nokusatshalaliswa kwezinhlangano ze-cellulose kuthinta ukusakazeka kwawo ku-caterance caste. Izinhlayiya ezincane zivame ukusabalalisa ngokulinganayo, zakha ifilimu elide lizungeze izinhlayiya zokwenza usimende futhi zisebenzisa ukubambezeleka okukhulu ku-hydration.

Ukushisa kanye nomswakama ohlobene: izimo zezemvelo, ezinjengokushisa kanye nomswakama ohlobene, zithonya izinga lokuhwamuka kwamanzi kanye ne-hydration yamanzi. Amazinga okushisa aphezulu kanye nomswakama ophansi ophansi usheshisa zombili izinqubo, ngenkathi amazinga okushisa aphansi kanye nomswakama ophakeme ophakeme uthanda ukubambezeleka ku-hydration okubangelwa iziphothuli ze-cellulose.

Hlanganisa ingxenye kanye nokwakheka: I-Quimpic Ingxenye ephelele kanye nokwakheka kwengxube kakhonkolo, kufaka phakathi uhlobo lwesimende, indawo ehlanganisiwe, nokuba khona kwamanye ama-admixtures, kungathinta ukusebenza kwezimali ze-cellulose ekubambezeleni i-hydration. Ukwenza kahle ukwakheka okuxubile kubalulekile ekufezekiseni isikhathi sokusebenza osifunayo.

I-Cellulose Talers ukubambezela i-hydration yesimende ngokusebenzisa izindlela ezahlukahlukene, kufaka phakathi ukugcinwa kwamanzi, ukwakheka kwezithiyo zomzimba, ama-adsorption angaphezulu, kanye nokuxhumana ne-calcium ions. Lezi zithangezo zidlala indima ebalulekile ekulawuleni isikhathi nokusebenza kwezinto zokwenziwa kosimende, ikakhulukazi kuzinhlelo zokusebenza lapho kudingeka khona izikhathi zokubeka. Ukuqonda izindlela ezingemuva kokubambezeleka kwe-hydration okubangelwa izithambisi ze-cellulose kubalulekile ekusetshenzisweni kwazo okusebenzayo emisebenzini yokwakha kanye nokuthuthukiswa kokusebenza kokhonkolo okuphezulu.