Umphumela we-hydroxyethyl cellulose ether ekufakweni kwamanzi kwangaphambi kwesikhathi kukasimende we-CSA

Imiphumela yei-hydroxyethyl cellulose (HEC)kanye nokushintshwa okuphezulu noma okuphansi kwe-hydroxyethyl methyl cellulose (H HMEC, L HEMC) kunqubo yokuqala ye-hydration kanye nemikhiqizo ye-hydration ye-sulfoaluminate (CSA) samende yafundwa. Imiphumela yabonisa ukuthi okuqukethwe okuhlukile kwe-L‑HEMC kungakhuthaza ukugeleza kukasimende we-CSA ku-45.0 min~10.0 h. Wonke ama-cellulose ether amathathu abambezeleka ukuchithwa kukasimende nesigaba soshintsho se-CSA kuqala, futhi athuthukisa ukugeleza kwamanzi phakathi kwamahora angu-2.0~10.0. Ukwethulwa kweqembu le-methyl kuthuthukise umphumela wokukhuthaza we-hydroxyethyl cellulose ether ku-hydration ye-CSA usimende, futhi i-L HEMC ibe nomthelela onamandla kakhulu wokukhuthaza; Umphumela we-cellulose ether enezinto ezihlukile kanye namadigri okushintsha emikhiqizweni ye-hydration phakathi kwamahora angu-12.0 ngaphambi kokufakwa kwamanzi kuhluke kakhulu. I-HEMC inomphumela onamandla wokukhuthaza emikhiqizweni ye-hydration kune-HEC. L HEMC modified CSA Cement slurry ikhiqiza i-calcium-vanadite eningi kakhulu ne-aluminium gum ku-2.0 kanye ne-4.0 h ye-hydration.
Amagama angukhiye: usimende we-sulfoaluminate; I-cellulose ether; Okubambele; Izinga lokushintsha; Inqubo yokukhipha amanzi; Umkhiqizo we-Hydration

Usimende we-Sulfoaluminate (CSA) one-anhydrous calcium sulfoaluminate (C4A3) kanye ne-boheme (C2S) njengeminerali eyinhloko ye-clinker inezinzuzo zokuqiniswa okusheshayo namandla okuqala, ukulwa nokuqhwa nokunqanda ukungena, i-alkalinity ephansi, kanye nokusetshenziswa kokushisa okuphansi endaweni. inqubo yokukhiqiza, ngokugaya kalula kwe-clinker. Isetshenziswa kabanzi ekulungiseni ukushesha, ukulwa nokungena kwamanzi namanye amaphrojekthi. I-Cellulose ether (CE) isetshenziswa kakhulu ekuguquleni udaka ngenxa yezindawo zayo ezigcina amanzi nokujiya. I-CSA Cement hydration reaction iyinkimbinkimbi, isikhathi sokungeniswa sifushane kakhulu, isikhathi sokusheshisa sinezigaba eziningi, futhi i-hydration yayo ingathonywa yi-admixture kanye nokushisa okuphulukisayo. UZhang et al. ithole ukuthi i-HEMC ingandisa isikhathi sokungeniswa kwe-hydration ye-CSA usimende futhi yenze ukuphakama okuyinhloko kwe-hydration heat release lag. Sun Zhenping et al. ithole ukuthi umphumela wokumunca amanzi we-HEMC uthinte ukukhishwa kwangaphambi kwesikhathi kwe-cement slurry. Wu Kai et al. bakholelwa ukuthi i-adsorption ebuthakathaka ye-HEMC ebusweni be-samente ye-CSA yayinganele ukuthi ithinte izinga lokukhululwa kokushisa kwe-cement hydration. Imiphumela yocwaningo ngomphumela we-HEMC ku-CSA usimende hydration yayingeyona iyunifomu, okungenzeka kubangelwe izingxenye ezahlukene ze-cement clinker ezisetshenzisiwe. Wan et al. ithole ukuthi ukugcinwa kwamanzi kwe-HEMC kwakungcono kune-hydroxyethyl cellulose (HEC), futhi i-viscosity eguquguqukayo kanye nokucindezeleka kwendawo yesisombululo sembobo ye-HEMC-modified CSA Cement slurry ene-high substitution degree yayinkulu. U-Li Jian et al. iqaphe izinguquko zokushisa zangaphakathi zangaphakathi ze-HEMC-modified CSA ze-cement mortars ngaphansi kwe-fluidity engaguquki futhi yathola ukuthi ithonya le-HEMC elinamazinga ahlukene okufaka esikhundleni lalihlukile.
Kodwa-ke, ucwaningo lokuqhathanisa emiphumeleni ye-CE enezindawo ezihlukile kanye namadigri okushintsha ekufakweni kokuqala kukasimende we-CSA akwanele. Kuleli phepha, imiphumela ye-hydroxyethyl cellulose ether enokuqukethwe okuhlukile, amaqembu angena esikhundleni kanye namadigri okushintsha ekufakweni kokuqala kukasimende we-CSA kwafundwa. Umthetho wokukhishwa kokushisa kwe-hydration kasimende we-CSA oshintshiwe we-12h one-hydroxyethyl cellulose ether wahlaziywa ngokugcizelela, futhi imikhiqizo yokufakwa kwamanzi yahlaziywa ngokomthamo.

1. Hlola
1.1 Izinto ezingavuthiwe
Usimende usimende we-CSA oqina ngokushesha webanga elingu-42.5, isikhathi sokumisa sokuqala nesokugcina singamaminithi angu-28 namaminithi angu-50, ngokulandelana. Ukwakheka kwayo kwamakhemikhali nokwakheka kwamaminerali (ingxenyana yobuningi, isilinganiso somthamo kanye nesilinganiso sikasimende samanzi okukhulunywe ngaso kuleli phepha kuyingxenyana enkulu noma isilinganiso sobukhulu) isishintshi se-CE sihlanganisa ama-3 hydroxyethyl cellulose ether ane-viscosity efanayo: I-Hydroxyethyl cellulose (HEC), izinga eliphezulu lokushintsha i-hydroxyethyl i-methyl cellulose (H HEMC), idigri ephansi yokufaka esikhundleni se-hydroxyethyl methyl fibrin (L HEMC), i-viscosity ye-32, 37, 36 Pa · s, izinga lokushintshwa kwe-2.5, 1.9, 1.6 ukuxuba amanzi emanzini akhishwe.
1.2 Isilinganiso senhlanganisela
Isilinganiso esilungisiwe sikasimende samanzi esingu-0.54, okuqukethwe kwe-L HEMC (okuqukethwe kwalesi sihloko kubalwa ngekhwalithi yodaka lwamanzi) wL=0%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, HEC kanye H Okuqukethwe kwe-HEMC okungu-0.5%. Kuleli phepha: L HEMC 0.1 wL=0.1% L HEMC shintsha usimende we-CSA, njalonjalo; I-CSA iyisimende ehlanzekile ye-CSA; I-HEC modified CSA usimende, L HEMC modified CSA usimende, H HEMC modified CSA usimende zibizwa ngokulandelana HCSA, LHCSA, HHCSA.
1.3 Indlela yokuhlola
I-isothermal micrometer eneziteshi eziyisishiyagalombili enobubanzi obungama-600 mW yasetshenziswa ukuhlola ukushisa kwe-hydration. Ngaphambi kokuhlolwa, ithuluzi lalizinziswe kokuthi (20±2) ℃ kanye nomswakama ohlobene no-RH= (60±5) % ku-6.0~8.0 h. I-CSA usimende, i-CE kanye namanzi okuxutshwa kwakuxutshwe ngokwesilinganiso sokuxuba futhi ukuxuba kukagesi kwenziwa i-1min ngesivinini se-600 r / min. Masinyane kala (10.0±0.1) g slurry ku-ampoule, faka i-ampoule ensimbini bese uqala ukuhlolwa kwesikhathi. Izinga lokushisa le-hydration lalingu-20 ℃, futhi idatha yayirekhodwa njalo ngemizuzu engu-1, futhi ukuhlolwa kwahlala kwaze kwaba ngu-12.0h.
Ukuhlaziywa kwe-Thermogravimetric (TG): Udaka lukasimende lwalungiswa ngokuya nge-ISO 9597-2008 Cement — Izindlela zokuhlola — Ukunqunywa kokubeka isikhathi nomsindo. I-slurry kasimende exubile yafakwa esikhunjini sokuhlola esingu-20 mm×20 mm×20 mm, futhi ngemva kokudlidliza okwenziwa izikhathi ezingu-10, yafakwa ngaphansi kuka-(20±2) ℃ kanye ne-RH= (60±5)% ukuze iphulukiswe. Amasampula akhishwe eneminyaka engu-t=2.0, 4.0 no-12.0 h, ngokulandelana. Ngemva kokukhipha ungqimba olungaphezulu lwesampula (≥1 mm), lwaphuka lwaba izingcezu ezincane futhi lucwiliswe kutshwala be-isopropyl. I-Isopropyl alcohol yashintshwa njalo nge-1d ngezinsuku eziyi-7 ezilandelanayo ukuze kuqinisekiswe ukumiswa okuphelele kokusabela kwe-hydration, futhi yomiswa ku-40 ℃ ukuze kube nesisindo esiqhubekayo. Kala (75±2) mg amasampula ku-crucible, shisisa amasampula ukusuka ku-30℃ ukuya ku-1000℃ ngezinga lokushisa elingu-20 ℃/min emkhathini we-nitrogen ngaphansi kwesimo se-adiabatic. Ukubola okushisayo kwemikhiqizo ye-CSA simende ye-hydration ikakhulukazi kwenzeka ku-50~550℃, futhi okuqukethwe kwamanzi ahlanganiswe ngamakhemikhali kungatholwa ngokubala izinga lokulahlekelwa okukhulu kwamasampuli ngaphakathi kwalolu hlu. I-AFt ilahlekelwe amanzi angamakristalu angu-20 futhi i-AH3 yalahlekelwa amanzi ayikristalu angu-3 ngesikhathi sokubola okushisayo ku-50-180 ℃. Okuqukethwe komkhiqizo ngamunye we-hydration kungabalwa ngokuya ngejika le-TG.

2. Imiphumela kanye nengxoxo
2.1 Ukuhlaziywa kwenqubo ye-hydration
2.1.1 Umthelela wokuqukethwe kwe-CE kunqubo ye-hydration
Ngokuya nge-hydration kanye namajika e-exothermic wokuqukethwe okuhlukile kwe-L HEMC elungisiwe udaka lukasimende lwe-CSA, kukhona iziqongo ezi-4 ze-exothermic ku-hydration kanye namajika e-exothermic we-CSA Cement slurry (wL=0%). Inqubo ye-hydration ingahlukaniswa ngesigaba sokuchithwa (0~15.0min), isigaba sokuguqulwa (15.0 ~ 45.0min) nesigaba sokusheshisa (45.0min) ~ 54.0min), isigaba sokunciphisa (54.0min~2.0h), isigaba sokulingana esiguqukayo ( 2.0~4.0h), isigaba sokusheshisa kabusha (4.0~5.0h), isigaba sokuphinda ugijime (5.0~10.0h) nesigaba sokuzinzisa (10.0h~). Ku-15.0min ngaphambi kwe-hydration, amaminerali kasimende ancibilika ngokushesha, futhi i-hydration yokuqala neyesibili ifinyelela iziqongo ze-exothermic kulesi sigaba futhi i-15.0-45.0 min ihambisana nokwakhiwa kwesigaba se-metastable AFt kanye nokuguqulwa kwayo ku-monosulfide calcium aluminate hydrate (AFm), ngokulandelana. Isiqongo sesithathu se-exothermal ku-54.0min we-hydration sasetshenziswa ukuhlukanisa izigaba zokusheshisa nokuncishiswa kwe-hydration, futhi amazinga okukhiqiza e-AFt kanye ne-AH3 athatha lokhu njengendawo yokuguquguquka, ukusuka ku-boom kuye ekuncipheni, bese engena esigabeni sokulingana esishintshayo esithatha amahora angu-2.0. . Lapho i-hydration ingu-4.0h, i-hydration iphinde yangena esigabeni sokusheshisa, i-C4A3 iwukuqedwa okusheshayo kanye nesizukulwane semikhiqizo ye-hydration, futhi ngo-5.0h, kwavela inani eliphakeme lokushisa kwe-hydration exothermic, labe selingena esigabeni sokunciphisa futhi. Ukukhipha amanzi kuzinzile ngemva kwehora le-10.0.
Umthelela wokuqukethwe kwe-L HEMC ku-CSA Cement hydration dissolutionfuthi isigaba sokuguqulwa sihlukile: lapho okuqukethwe kwe-L HEMC kuphansi, i-L HEMC eguquliwe i-CSA usimende inamathisele i-peak yesibili yokukhishwa kokushisa kwe-hydration ivele kancane ngaphambili, izinga lokukhululwa kokushisa kanye nenani eliphakeme lokukhishwa kokushisa liphakeme kakhulu kune-CSA ehlanzekile yokunamathisela usimende; Ngokukhuphuka kokuqukethwe kwe-L HEMC, izinga lokukhishwa kokushisa kwe-L HEMC eguqule udaka lukasimende lwe-CSA lehla kancane kancane, futhi lehla kunodaka oluhlanzekile lukasimende lwe-CSA. Inombolo yeziqongo ze-exothermic ku-hydration exothermic curve ye-L HEMC 0.1 iyafana naleyo yokunamathisela usimende we-CSA emsulwa, kodwa iziqongo ze-3rd ne-4th hydration exothermic zithuthukele ku-42.0min no-2.3h, ngokulandelana, futhi uma ziqhathaniswa no-33.5 no-9.0. mW/g yokunamathisela usimende okumsulwa kwe-CSA, iziqongo zazo ezishisayo zikhushulwa zaba ngu-36.9 no-10.5 mW/g, ngokulandelana. Lokhu kubonisa ukuthi i-0.1% L HEMC isheshisa futhi ithuthukise ukugeleza kwamanzi kwe-L HEMC eguquliwe ye-CSA usimende esigabeni esihambelanayo. Futhi okuqukethwe kwe-L HEMC kungu-0.2% ~ 0.5%, i-L HEMC eguqule ukusheshisa kukasimende ye-CSA kanye nesiteji sokunciphisa ijubane kuhlanganiswe kancane kancane, okungukuthi, ukuphakama kwesine kwe-exothermic kusengaphambili futhi kuhlanganiswe nokuphakama kwesithathu kwe-exothermic, maphakathi nesigaba sebhalansi esiguqukayo asisabonakali. , L HEMC ku-CSA cement hydration promotion effect ibaluleke kakhulu.
I-L HEMC ikhuthaze ngokuphawulekayo ukugeleza kukasimende we-CSA ku-45.0 min~10.0 h. Ku-45.0min ~ 5.0h, i-0.1%L i-HEMC inomphumela omncane ku-hydration ye-CSA usimende, kodwa uma okuqukethwe kwe-L HEMC kukhuphuka ku-0.2% ~ 0.5%, umphumela awubalulekile. Lokhu kuhluke ngokuphelele kumphumela we-CE ku-hydration kasimende wasePortland. Ucwaningo lwezincwadi lubonise ukuthi i-CE equkethe inani elikhulu lamaqembu e-hydroxyl ku-molecule izokhangiswa ebusweni bezinhlayiya zikasimende nemikhiqizo ye-hydration ngenxa yokusebenzisana kwe-acid-base, ngaleyo ndlela ibambezeleke ukugeleza kokuqala kukasimende wase-Portland, futhi kuqina i-adsorption, kusobala kakhulu ukubambezeleka. Kodwa-ke, kwatholakala ezincwadini ukuthi umthamo we-adsorption we-CE endaweni ye-AFt wawubuthakathaka kunalowo wejeli ye-calcium silicate hydrate (C‑S‑H), i-Ca (OH) 2 kanye ne-calcium aluminate hydrate surface, kuyilapho amandla okukhangisa I-HEMC ezinhlayiyeni zikasimende ze-CSA nayo yaba buthaka kunaleyo ezinhlayiyeni zikasimende zasePortland. Ngaphezu kwalokho, i-athomu yomoya-mpilo ku-molecule ye-CE ingalungisa amanzi amahhala ngendlela ye-hydrogen bond njengamanzi adsorbed, iguqule isimo samanzi ahwamukayo ku-slurry kasimende, bese ithinta ukugeleza kukasimende. Kodwa-ke, i-adsorption ebuthakathaka kanye nokumuncwa kwamanzi kwe-CE kuzoba buthaka kancane kancane ngokwandiswa kwesikhathi se-hydration. Ngemva kwesikhathi esithile, amanzi adsorbed azokhululwa futhi aqhubeke asabele ngezinhlayiya ze-samente ezingenamanzi. Ngaphezu kwalokho, umphumela wokwenzeka we-CE ungahlinzeka ngendawo ende yemikhiqizo ye-hydration. Lokhu kungase kube isizathu esenza i-L HEMC ikhuthaze i-CSA usimende hydration ngemva kwe-45.0 min hydration.
2.1.2 Umthelela we-CE esikhundleni kanye neziqu zayo enqubweni ye-hydration
Ingabonakala kumajika okukhishwa kokushisa kwe-hydration kwama-slurries e-CSA ashintshiwe amathathu e-CE. Uma kuqhathaniswa ne-L HEMC, amajika esilinganiso sokukhishwa kokushisa kwe-hydration we-HEC kanye ne-H HEMC eshintshiwe ye-CSA slurries nawo aneziqongo ezine zokukhishwa kokushisa kwe-hydration. Zonke lezi zintathu ze-CE zinemiphumela ebambezelekile ezigabeni zokuchithwa nokuguqulwa kwe-CSA cement hydration, futhi i-HEC ne-H HEMC zinemiphumela yokubambezeleka enamandla, ibambezele ukuvela kwesigaba esisheshayo se-hydration. Ukwengezwa kwe-HEC ne-H‑HEMC kubambezele kancane ukuphakama kwe-3rd hydration exothermic, kuthuthukiswe kakhulu i-4th hydration exothermic peak, futhi kwandise inani eliphakeme le-4th hydration exothermic peak. Sengiphetha, ukukhishwa kokushisa kwe-hydration kwama-slurries e-CSA ashintshiwe amathathu e-CE kukhulu kunalawo ama-slurries e-CSA ahlanzekile esikhathini sokugeleza samahora angu-2.0~10.0, okubonisa ukuthi ama-CE amathathu wonke akhuthaza ukugeleza kukasimende we-CSA kulesi sigaba. Esikhathini se-hydration esingu-2.0 ~ 5.0 h, ukukhululwa kokushisa kwe-hydration kwe-L HEMC modified CSA usimende inkulu kakhulu, futhi i-H HEMC kanye ne-HEC ingeyesibili, okubonisa ukuthi umphumela wokuphromotha wokufaka esikhundleni okuphansi kwe-HEMC ekufakweni kukasimende we-CSA kunamandla. . Umphumela we-catalytic we-HEMC wawunamandla kunalowo we-HEC, okubonisa ukuthi ukwethulwa kweqembu le-methyl kuthuthukise umphumela we-catalytic we-CE ku-hydration ye-CSA simende. Isakhiwo samakhemikhali se-CE sinethonya elikhulu ekukhangiseni kwayo ebusweni bezinhlayiya zikasimende, ikakhulukazi izinga lokushintshwa kanye nohlobo lokushintshwa.
Isithiyo esiqinile se-CE sihlukile ngezinto ezihlukile. I-HEC ine-hydroxyethyl kuphela kuchungechunge oluseceleni, elincane kune-HEMC equkethe i-methyl group. Ngakho-ke, i-HEC inomphumela we-adsorption onamandla kakhulu ezinhlayiyeni zikasimende ze-CSA kanye nomthelela omkhulu ekuphenduleni kokuxhumana phakathi kwezinhlayiya zikasimende namanzi, ngakho-ke inomphumela wokulibaziseka osobala kakhulu ekuphakameni kwesithathu kwe-hydration exothermic. Ukumuncwa kwamanzi kwe-HEMC ngokushintshwa okuphezulu kunamandla kakhulu kunalokho kwe-HEMC ngokufaka esikhundleni okuphansi. Ngenxa yalokho, amanzi amahhala ahilelekile ekuphenduleni kwe-hydration phakathi kwezakhiwo ezi-flocculated ayancishiswa, okunomthelela omkhulu ekufakweni kokuqala kukasimende we-CSA oguquliwe. Ngenxa yalokhu, ukuphakama kwe-hydrothermal yesithathu kuyabambezeleka. Ama-HEMC afaka esikhundleni aphansi anomunca amanzi abuthakathaka kanye nesikhathi esifushane sesenzo, okuholela ekukhululweni kwamanzi e-adsorbent kanye nokugeleza okwengeziwe kwenani elikhulu lezinhlayiya zikasimende ezingenamanzi. I-adsorption ebuthakathaka kanye nokumuncwa kwamanzi kunemiphumela ehlukile yokubambezeleka ku-hydration dissolution kanye nesigaba soshintsho sikasimende we-CSA, okuholela kumehluko ekukhuthazeni ukugeleza kukasimende esigabeni sakamuva se-CE.
2.2 Ukuhlaziywa kwemikhiqizo ye-hydration
2.2.1 Umthelela wokuqukethwe kwe-CE emikhiqizweni ye-hydration
Shintsha ijika le-TG DTG le-CSA amanzi aludaka ngokuqukethwe okuhlukile kwe-L HEMC; Okuqukethwe emanzini ahlanganiswe amakhemikhali ww nemikhiqizo ye-hydration AFt ne-AH3 wAFt kanye ne-wAH3 kubalwe ngokuvumelana namajika e-TG. Imiphumela ebaliwe ibonise ukuthi amajika e-DTG okunamathisela usimende okumsulwa kwe-CSA abonise iziqongo ezintathu ku-50~180 ℃, 230~300 ℃ kanye no-642~975 ℃. Ihambisana ne-AFt, AH3 kanye nokubola kwe-dolomite, ngokulandelanayo. Ku-hydration 2.0 h, amajika e-TG we-L HEMC eguquliwe i-CSA slurry ahlukile. Uma ukusabela kwe-hydration kufinyelela ku-12.0 h, awukho umehluko obalulekile kumajika. Ku-2.0h hydration, okuqukethwe kwamanzi okubopha amakhemikhali okungu-wL=0%, 0.1%, 0.5% L HEMC modified CSA Cement paste kwaba ngu-14.9%, 16.2%, 17.0%, kanye nokuqukethwe kwe-AFt kungu-32.8%, 35.2%, 36.7%, ngokulandelana. Okuqukethwe kwe-AH3 kwakungu-3.1%, 3.5% no-3.7%, ngokulandelana, okubonisa ukuthi ukufakwa kwe-L HEMC kuthuthukisa i-hydration degree ye-cement slurry hydration ye-2.0 h, futhi kwandise ukukhiqizwa kwemikhiqizo ye-hydration AFt ne-AH3, okungukuthi, ithuthukiswe. ukufakwa kwe-hydration ye-CSA Cement. Lokhu kungase kube ngenxa yokuthi i-HEMC iqukethe kokubili i-hydrophobic group methyl kanye ne-hydrophilic group hydroxyethyl, enomsebenzi ophezulu ongaphezulu futhi inganciphisa kakhulu ukungezwani okungaphezulu kwesigaba soketshezi ku-slurry kasimende. Ngesikhathi esifanayo, kunomphumela wokufaka umoya ukuze kube lula ukukhiqizwa kwemikhiqizo ye-cement hydration. Ku-12.0 h wokufakwa kwamanzi, i-AFt kanye ne-AH3 okuqukethwe ku-L HEMC okuguquliwe usimende we-CSA slurry kanye nodaka oluhlanzekile lukasimende lwe-CSA alunawo umehluko omkhulu.
2.2.2 Umthelela wabasekeli be-CE namadigri abo okushintsha emikhiqizweni ye-hydration
Ijika le-TG DTG le-CSA Cement slurry lilungiswe ngama-CE amathathu (okuqukethwe kwe-CE kungu-0.5%); Imiphumela yokubala ehambisanayo ye-ww, i-wFt kanye ne-wAH3 imi kanje: ku-hydration 2.0 no-4.0 h, amajika e-TG ama-slurries kasimende ahlukene ahluke kakhulu. Lapho ukugeleza kwamanzi kufinyelela ku-12.0 h, amajika e-TG ama-slurries kasimende ahlukene awanawo umehluko obalulekile. Ku-2.0 h hydration, okuqukethwe kwamanzi aboshwe ngamakhemikhali we-CSA simende slurry kanye ne-HEC, L HEMC, H HEMC eguquliwe i-CSA slurry ye-cement ingu-14.9%, 15.2%, 17.0%, 14.1%, ngokulandelana. Ngo-4.0 h we-hydration, ijika le-TG le-CSA esiludaka lukasimende lehle kancane. Idigri ye-hydration yama-slurries e-CSA ashintshiwe amathathu e-CE yayinkulu kunaleyo yama-slurries e-CSA ahlanzekile, futhi okuqukethwe kwamanzi ahlanganiswe ngamakhemikhali e-HEMC eshintshiwe ye-CSA slurries kwakukukhulu kunaleyo ye-HEC modified CSA slurries. L I-HEMC eguquliwe i-CSA yamakhemikhali ebopha ngamakhemikhali abopha usimende enodaka inkulu kakhulu. Sengiphetha, i-CE enama-substitute ahlukene namadigri okushintsha inomehluko omkhulu emikhiqizweni yokuqala ye-hydration kasimende we-CSA, futhi i-L‑HEMC inomphumela omkhulu wokuphromotha ekwakhiweni kwemikhiqizo ye-hydration. Ngo-12.0 h hydration, awubanga khona umehluko omkhulu phakathi kwezinga lokulahlekelwa okukhulu kwe-CE modified CSA slurps ye-CSA kanye ne-pure CSA Cement slurps, eyayihambisana nemiphumela yokukhululwa kokushisa, okubonisa ukuthi i-CE ithinte kakhulu kuphela ukugeleza kwamanzi. CSA usimende phakathi 12.0 h.
Kungase futhi kubonakale ukuthi i-AFt kanye ne-AH3 yamandla aphakeme wesici se-L HEMC eguquliwe i-CSA slurry yiwona amakhulu kunawo wonke ekufakweni kwe-hydration 2.0 kanye no-4.0 h. Okuqukethwe kwe-AFt kwe-pure CSA slurry kanye ne-HEC, L HEMC, H HEMC modified CSA slurry bekungu-32.8%, 33.3%, 36.7% no-31.0%, ngokulandelana, ku-2.0h hydration. Okuqukethwe kwe-AH3 kwakungu-3.1%, 3.0%, 3.6% no-2.7%, ngokulandelana. Ku-4.0 h we-hydration, okuqukethwe kwe-AFt bekungu-34.9%, 37.1%, 41.5% no-39.4%, futhi okuqukethwe kwe-AH3 kube ngu-3.3%, 3.5%, 4.1% no-3.6%, ngokulandelana. Kungabonakala ukuthi i-L HEMC inomphumela onamandla kakhulu wokugqugquzela ekwakhiweni kwemikhiqizo ye-hydration ye-CSA simende, futhi umphumela wokukhuthaza we-HEMC unamandla kunalowo we-HEC. Uma kuqhathaniswa ne-L-HEMC, i-H-HEMC ithuthukise i-viscosity eguquguqukayo yesisombululo se-pore ngokuphawulekayo, ngaleyo ndlela ithinte ukuthuthwa kwamanzi, okubangele ukwehla kwezinga lokungena kwe-slurry, futhi kuthinte ukukhiqizwa komkhiqizo we-hydration ngalesi sikhathi. Uma kuqhathaniswa nama-HEMCs, umphumela wokubopha i-hydrogen kuma-molecule we-HEC ubonakala kakhudlwana, futhi umphumela wokumuncwa kwamanzi unamandla futhi uhlala isikhathi eside. Ngalesi sikhathi, umphumela wokumuncwa kwamanzi womabili ama-HEMC athatha indawo ephezulu kanye nama-HEMC athatha indawo ephansi awusabonakali. Ngaphezu kwalokho, i-CE yakha "i-loop evaliwe" yokuthutha kwamanzi endaweni encane ngaphakathi kwe-slurry kasimende, futhi amanzi akhishwe kancane yi-CE angaqhubeka nokusabela ngokuqondile nezinhlayiya zikasimende ezizungezile. Ngo-12.0 h we-hydration, imiphumela ye-CE ku-AFt kanye ne-AH3 yokukhiqizwa kwe-CSA usimende slurry yayingasabalulekile.

3. Isiphetho
(1) I-hydration ye-sulfoaluminate (CSA) sludge ku-45.0 min ~ 10.0 h ingakhuthazwa ngesilinganiso esihlukile se-hydroxyethyl methyl fibrin (L HEMC).
(2) I-Hydroxyethyl cellulose (HEC), i-high substitution hydroxyethyl methyl cellulose (H HEMC), L HEMC HEMC, lawa ma-hydroxyethyl cellulose ether (CE) abambezele isigaba sokuhlakazeka nesokuguqulwa kwe-CSA usimende hydration, futhi akhuthaze ukugeleza kwe-2.0 ~ 10.0 ihora.
(3) Ukwethulwa kwe-methyl ku-hydroxyethyl CE kungathuthukisa kakhulu umphumela wayo wokukhuthaza ekufakweni kwe-CSA usimende ku-2.0 ~ 5.0 h, futhi umphumela wokuphromotha we-L HEMC ku-hydration ye-CSA usimende unamandla kune-H HEMC.
(4) Uma okuqukethwe kwe-CE kungu-0.5%, inani le-AFt ne-AH3 elikhiqizwe yi-L HEMC eguqule i-CSA slurry ku-hydration 2.0 kanye ne-4.0 h liphakeme kakhulu, futhi umphumela wokukhuthaza ukugeleza kwamanzi ubaluleke kakhulu; I-H HEMC kanye ne-HEC eguquliwe ye-CSA slurries ikhiqize okuqukethwe okuphezulu kwe-AFt ne-AH3 kune-slurries emsulwa ye-CSA kuphela emahoreni angu-4.0 wokugeleza kwamanzi. Ngo-12.0 h we-hydration, imiphumela ye-3 CE emikhiqizweni ye-hydration kasimende we-CSA yayingasabalulekile.