Phello ea hydroxyethyl cellulose ether ho hydration ea pele ea samente ea CSA

Liphello tsahydroxyethyl cellulose (HEC)le sebaka se phahameng kapa se tlaase sa hydroxyethyl methyl cellulose (H HMEC, L HEMC) mabapi le mokhoa oa pele oa hydration le lihlahisoa tsa hydration tsa samente ea sulfoaluminate (CSA) li ile tsa ithutoa. Liphetho li bonts'itse hore litaba tse fapaneng tsa L-HEMC li ka khothaletsa hydration ea samente ea CSA ka 45.0 min ~ 10.0 h. Li-ether tse tharo tsa cellulose li ile tsa liehisa metsi a ho qhibiliha ha samente le mohato oa phetoho ea CSA pele, 'me tsa khothalletsa metsi ka hare ho 2.0 ~ 10.0 h. Ho kenyelletsoa ha sehlopha sa methyl ho ile ha ntlafatsa phello ea ts'ebetso ea hydroxyethyl cellulose ether ho hydration ea samente ea CSA, 'me L HEMC e ne e e-na le phello e matla ka ho fetisisa ea ho khothalletsa; Phello ea cellulose ether e nang le li-substituents le likhato tse fapaneng tsa ho fetola lihlahisoa tsa hydration ka hare ho 12.0 h pele hydration e fapane haholo. HEMC e na le tšusumetso e matla ho lihlahisoa tsa hydration ho feta HEC. L HEMC e fetotsoeng CSA samente slurry e hlahisa calcium-vanadite le aluminium gum ka ho fetisisa ho 2.0 le 4.0 h ea hydration.
Mantsoe a bohlokoa: samente ea sulfoaluminate; Cellulose ether; Moemedi; Tekanyo ea ho nka sebaka; Ts'ebetso ea hydration; Sehlahisoa sa Hydration

Samente ea Sulfoaluminate (CSA) e nang le anhydrous calcium sulfoaluminate (C4A3) le boheme (C2S) joalo ka merafo e ka sehloohong ea clinker e na le melemo ea ho thatafala ka potlako le matla a pele, anti-hatsetsi le anti-permeability, alkalinity e tlase, le tšebeliso e tlase ea mocheso mokhoa oa tlhahiso, ka ho sila habonolo ha clinker. E sebelisoa haholo ho lokisa ka potlako, anti-permeability le merero e meng. Cellulose ether (CE) e sebelisoa haholo ho fetola seretse ka lebaka la thepa ea eona ea ho boloka metsi le ho teteaneng. CSA samente hydration reaction e rarahane, nako ea induction e khutšoanyane haholo, nako ea ho potlakisa ke mekhahlelo e mengata, 'me hydration ea eona e ka ba le tšusumetso ea motsoako le mocheso o folisang. Zhang et al. e fumane hore HEMC e ka lelefatsa nako ea ho kenngoa ha hydration ea samente ea CSA le ho etsa tlhōrō e kholo ea hydration heat release lag. Sun Zhenping et al. e fumane hore phello ea ho kenngoa ha metsi ea HEMC e ile ea ama metsi a pele a hydration ea samente slurry. Wu Kai et al. o ne a lumela hore adsorption e fokolang ea HEMC holim'a samente ea CSA e ne e sa lekana ho ama tekanyo ea ho lokolloa ha mocheso oa samente hydration. Liphetho tsa lipatlisiso mabapi le phello ea HEMC ho CSA samente hydration e ne e sa tšoane, e ka 'nang ea bakoa ke likarolo tse fapaneng tsa clinker ea samente e sebelisoang. Wan et al. o fumane hore ho boloka metsi a HEMC ho ne ho le molemo ho feta hydroxyethyl cellulose (HEC), le viscosity e matla le tsitsipano ea holim'a sekoti sa HEMC-modified CSA samente slurry e nang le tekanyo e phahameng ea substitution e ne e le kholoanyane. Li Jian et al. e ile ea hlahloba liphetoho tsa pele tsa mocheso oa ka hare oa liretse tsa samente tsa HEMC-modified CSA tlas'a metsi a tsitsitseng 'me ea fumana hore tšusumetso ea HEMC e nang le likhato tse fapaneng tsa ho fetola li fapane.
Leha ho le joalo, boithuto ba papiso mabapi le litlamorao tsa CE tse nang le li-substitute tse fapaneng le li-degree tsa substitution ho hydration ea pele ea samente ea CSA ha ea lekana. Ka pampiri ena, liphello tsa hydroxyethyl cellulose ether e nang le likahare tse fapaneng, lihlopha tse ling le likhato tsa ho kenya sebaka sa pele ho hydration ea samente ea CSA li ile tsa ithutoa. Molao oa ho lokolla mocheso oa hydration oa 12h o fetotsoeng samente ea CSA e nang le hydroxyethyl cellulose ether e ile ea hlahlojoa ka matla, 'me lihlahisoa tsa hydration li ile tsa hlahlojoa ka bongata.

1. Teko
1.1 Lisebelisoa tse tala
Samente ke 42.5 grade e thatafatsa CSA samente, nako ea pele le ea ho qetela ea ho beha ke 28 min le 50 min, ka ho latellana. Sebopeho sa eona sa lik'hemik'hale le sebopeho sa liminerale (karolo ea boima, tekanyo ea litekanyetso le samente ea metsi e boletsoeng pampiring ena ke karolo ea boima kapa tekanyo ea boima) modifier CE e kenyelletsa 3 hydroxyethyl cellulose ethers tse nang le viscosity e tšoanang: Hydroxyethyl cellulose (HEC), boemo bo phahameng ba substitution hydroxyethyl. methyl cellulose (H HEMC), tekanyo e tlaase ea substitution hydroxyethyl methyl fibrin (L HEMC), viscosity ea 32, 37, 36 Pa · s, tekanyo ea ho kenya sebaka sa 2.5, 1.9, 1.6 ho kopanya metsi bakeng sa metsi a deionized.
1.2 Motsoako karo-karolelano
Tekanyo e tsitsitseng ea samente ea metsi ea 0.54, litaba tsa L HEMC (litaba tsa sehlooho sena li baloa ka boleng ba seretse sa metsi) wL = 0%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, HEC le Likahare tsa H HEMC tsa 0.5%. Ka pampiri ena: L HEMC 0.1 wL = 0.1% L HEMC fetola CSA samente, joalo-joalo; CSA ke samente e hloekileng ea CSA; samente e fetotsoeng ea CSA, L HEMC e fetotsoeng samente ea CSA, samente ea CSA e fetotsoeng ea H HEMC li bitsoa HCSA, LHCSA, HHCSA.
1.3 Mokhoa oa teko
Ho ile ha sebelisoa micrometer ea isothermal e nang le likanale tse robeli e nang le tekanyo ea 600 mW ho leka mocheso oa metsi. Pele ho tlhahlobo, sesebelisoa se ne se tsitsitse ho (20 ± 2) ℃ le mongobo o lekanyelitsoeng RH = (60 ± 5)% bakeng sa 6.0 ~ 8.0 h. CSA samente, CE le ho kopanya metsi li ne li tsoakane ho latela motsoako oa motsoako le ho kopanya motlakase ho ne ho etsoa bakeng sa 1min ka lebelo la 600 r / min. Hang-hang lekanya (10.0±0.1) g slurry ka har'a ampoule, kenya ampoule ka har'a sesebelisoa ebe u qala tlhahlobo ea nako. Thempereichara ea hydration e ne e le 20 ℃, 'me data e ne e ngotsoe metsotso e meng le e meng e 1,' me teko e ile ea nka ho fihlela 12.0h.
Tlhahlobo ea Thermogravimetric (TG): Cement slurry e lokiselitsoe ho latela ISO 9597-2008 Cement - Mekhoa ea liteko - Boikemisetso ba ho beha nako le ho utloahala. Seretse sa samente se tsoakiloeng se ile sa kenngoa foromong ea teko ea 20 mm×20 mm×20 mm, 'me ka mor'a ho sisinyeha ha maiketsetso ka makhetlo a 10, se ile sa behoa tlas'a (20±2) ℃ le RH= (60±5)% bakeng sa ho phekola. Mehlala e ile ea ntšoa ka lilemo tsa t=2.0, 4.0 le 12.0 h, ka ho latellana. Ka mor'a ho tlosa lera le ka holimo la sampole (≥1 mm), e ile ea robeha likotoana tse nyane ebe e kolobisoa ka joala ba isopropyl. Joala ba Isopropyl bo ile ba nkeloa sebaka ke 1d e 'ngoe le e' ngoe bakeng sa matsatsi a 7 a latellanang ho netefatsa ho emisoa ka botlalo ha karabelo ea hydration, mme e omisitsoe ho 40 ℃ ho boima bo sa feleng. Beha lisampole (75±2) mg ka har'a crucible, futhumatsa lisampole ho tloha ho 30 ℃ ho ea ho 1000 ℃ ka sekhahla sa mocheso oa 20 ℃/min sebakeng sa naetrojene tlas'a boemo ba adiabatic. Ho bola ha mocheso oa lihlahisoa tsa CSA samente hydration haholo-holo ho etsahala ho 50 ~ 550 ℃, 'me likahare tsa metsi a kentsoeng ke lik'hemik'hale li ka fumanoa ka ho bala sekhahla sa tahlehelo ea boima ba lisampole ka har'a mefuta ena. AFt e ile ea lahleheloa ke metsi a 20 a kristale mme AH3 ea lahleheloa ke metsi a 3 a kristale nakong ea ho bola ha mocheso ho 50-180 ℃. Likahare tsa sehlahisoa se seng le se seng sa hydration li ka baloa ho latela TG curve.

2. Liphetho le lipuisano
2.1 Tlhahlobo ea ts'ebetso ea hydration
2.1.1 Tšusumetso ea litaba tsa CE ts'ebetsong ea hydration
Ho ea ka hydration le exothermic curves ea litaba tse fapaneng L HEMC fetotsoeng CSA samente slurry, ho na le 4 exothermic litlhōrō holim'a hydration le exothermic curves tsa pure CSA samente slurry (wL=0%). Ts'ebetso ea hydration e ka aroloa ka sethala sa ho qhibiliha (0 ~ 15.0min), sethala sa phetoho (15.0 ~ 45.0min) le sethala sa ho potlakisa (45.0min) ~ 54.0min), sethala sa deceleration (54.0min ~ 2.0h), sethala sa tekano e matla ( 2.0 ~ 4.0h), mohato oa ho tsosolosa (4.0 ~ 5.0h), mohato oa ho tsosolosa (5.0 ~ 10.0h) le sethaleng sa botsitso (10.0h ~). Ka 15.0min pele ho hydration, diminerale samente qhibiliha ka potlako, 'me ea pele le ea bobeli hydration litlhōrō exothermic sethaleng sena le 15.0-45.0 min e tsamaisanang le ho thehoa ha metastable phase AFt le phetoho ea eona ho monosulfide calcium aluminate hydrate (AFm), ka ho latellana. Tlhōrō ea boraro ea exothermal ho 54.0min ea hydration e ne e sebelisetsoa ho arola mekhahlelo ea ho potlakisa metsi le ho fokotseha, 'me litekanyetso tsa moloko oa AFt le AH3 li ile tsa nka sena e le ntlha ea inflection, ho tloha boom ho ea ho fokotseha,' me ka mor'a moo ea kena boemong bo matla ba tekano bo tšoarellang 2.0 h. . Ha hydration e ne e le 4.0h, hydration e boetse e kena sethaleng sa ho potlakisa, C4A3 ke ho qhibiliha ka potlako le ho hlahisa lihlahisoa tsa hydration, 'me ka 5.0h, ho ile ha hlaha tlhōrō ea mocheso oa hydration exothermic, ebe o kena sethaleng sa ho fokotseha hape. Hydration e tsitsitse kamora hoo e ka bang 10.0h.
Tšusumetso ea litaba tsa L HEMC ho CSA samente hydration dissolution'me sethala sa ho sokoloha se fapane: ha L HEMC e le tlaase, L HEMC e fetotsoe CSA samente peista ea bobeli hydration mocheso tokollo tlhōrō e ile ea hlaha hanyenyane pejana, mocheso tokollo ea mocheso le mocheso tokollo tlhōrō tlhōrō e phahameng haholo ho feta e hloekileng CSA samente peista; Ka keketseho ea litaba tsa L HEMC, sekhahla sa ho lokolloa ha mocheso oa L HEMC se fetotsoeng CSA samente slurry se ile sa fokotseha butle-butle, 'me sa fokotseha ho feta seretse se hloekileng sa samente sa CSA. Palo ea litlhōrō tsa exothermic ka har'a hydration exothermic curve ea L HEMC 0.1 e tšoana le ea sekontiri sa samente sa CSA e hloekileng, empa litlhōrō tsa 3rd le 4th hydration exothermic li tsoetse pele ho 42.0min le 2.3h, ka ho latellana, 'me li bapisoa le 33.5 le 9.0. mW/g ea peista ea samente e hloekileng ea CSA, litlhōrō tsa tsona tse exothermic li eketsoa ho 36.9 le 10.5 mW/g, ka ho latellana. Sena se bontša hore 0.1% L HEMC e potlakisa le ho matlafatsa metsi a samente ea L HEMC e fetotsoeng ea CSA sethaleng se lumellanang. Le L HEMC dikahare ke 0.2% ~ 0.5%, L HEMC fetotsoeng CSA samente potlakisa le deceleration sethaleng butle-butle kopantswe, ke hore, ea bone tlhōrō exothermic esale pele 'me ho kopantswe le tlhōrō ea boraro exothermic, bohareng ba dynamic balance sethaleng ha e sa hlaha. , L HEMC ka CSA cement hydration promotion effect ke ea bohlokoa haholo.
L HEMC e khothalelitse haholo ho phalla ha samente ea CSA ka 45.0 min ~ 10.0 h. Ka 45.0min ~ 5.0h, 0.1% L HEMC ha e na phello e fokolang ho hydration ea samente ea CSA, empa ha litaba tsa L HEMC li eketseha ho 0.2% ~ 0.5%, phello ha e bohlokoa. Sena se fapane ka ho felletseng le phello ea CE ho hydration ea samente ea Portland. Lithuto tsa lingoliloeng li bonts'itse hore CE e nang le palo e kholo ea lihlopha tsa hydroxyl ka molek'hule e tla khabisoa ka holim'a likaroloana tsa samente le lihlahisoa tsa hydration ka lebaka la tšebelisano-'moho ea acid, ka hona e liehisa hydration ea pele ea samente ea Portland, 'me adsorption e matla haholo. tieho e totobetseng haholoanyane. Leha ho le joalo, ho ile ha fumanoa libukeng hore matla a adsorption a CE holim'a AFt a ne a fokola ho feta a calcium silicate hydrate (C‑S-H) gel, Ca (OH) 2 le calcium aluminate hydrate surface, ha matla a adsorption HEMC ka likaroloana tsa samente tsa CSA le eona e ne e fokola ho feta ea likaroloana tsa samente tsa Portland. Ntle le moo, athomo ea oksijene ho molek'hule ea CE e ka lokisa metsi a mahala ka mokhoa oa bond ea hydrogen e le metsi a adsorbed, ea fetola boemo ba metsi a mouoane ka har'a slurry ea samente, ebe e ama hydration ea samente. Leha ho le joalo, adsorption e fokolang le ho monya metsi ha CE ho tla fokola butle butle ka ho atolosoa ha nako ea hydration. Ka mor'a nako e itseng, metsi a adsorbed a tla lokolloa 'me a tsoele pele ho itšoara ka likaroloana tsa samente tse se nang metsi. Ho feta moo, phello e hlahang ea CE e ka fana ka sebaka se selelele bakeng sa lihlahisoa tsa hydration. Sena e ka 'na ea e-ba lebaka leo ka lona L HEMC e khothalletsang CSA samente hydration ka mor'a 45.0 min hydration.
2.1.2 Tšusumetso ea sebaka sa CE le degree ea eona ho hydration process
E ka bonoa ho tsoa ho li-curve tsa hydration tse lokollang mocheso oa li-slurries tse tharo tse fetotsoeng tsa CSA. Ha ho bapisoa le L HEMC, li-curve tsa hydration heat release rate tsa HEC le H HEMC modified CSA slurries le tsona li na le litlhōrō tse 'nè tsa ho lokolla mocheso oa hydration. Kaofela ha tse tharo tsa CE li na le liphello tse liehang ka mekhahlelo ea ho qhibiliha le ho fetoha ha CSA samente hydration, 'me HEC le H HEMC li na le liphello tse matla tsa ho lieha ho lieha, ho lieha ho hlaha ha mohato o potlakileng oa hydration. Ho eketsoa ha HEC le H-HEMC hanyenyane ho liehile tlhōrō ea 3rd hydration exothermic tlhōrō, e tsoetseng pele haholo ea 4th hydration exothermic peak, 'me ea eketsa tlhōrō ea 4th hydration exothermic peak. Qetellong, tlhahiso ea mocheso oa hydration ea li-slurries tse tharo tse fetotsoeng tsa CSA e kholo ho feta ea li-slurries tse hloekileng tsa CSA nakong ea hydration ea 2.0 ~ 10.0 h, e leng se bontšang hore CE tse tharo kaofela li khothalletsa ho kenngoa ha samente ea CSA mothating ona. Nakong ea hydration ea 2.0 ~ 5.0 h, tlhahiso ea mocheso oa hydration ea L HEMC e fetotsoeng sa samente ea CSA ke eona e kholo ka ho fetisisa, 'me H HEMC le HEC ke tsa bobeli, tse bontšang hore ts'ebetso ea ts'ebetso ea phallo e tlaase ea HEMC holim'a hydration ea samente ea CSA e matla haholo. . Phello e matla ea HEMC e ne e le matla ho feta ea HEC, e bontšang hore ho kenyelletsoa ha sehlopha sa methyl ho ile ha ntlafatsa phello ea catalytic ea CE ho hydration ea samente ea CSA. Sebopeho sa lik'hemik'hale tsa CE se na le tšusumetso e kholo ho adsorption ea eona holim'a likaroloana tsa samente, haholo-holo tekanyo ea ho kenya sebaka le mofuta oa sebaka.
Tšitiso ea steric ea CE e fapane le tse ling tse fapaneng. HEC e na le hydroxyethyl feela ka lehlakoreng la ketane, e nyane ho feta HEMC e nang le sehlopha sa methyl. Ka hona, HEC e na le phello e matla ka ho fetisisa ea adsorption ho likaroloana tsa samente tsa CSA le tšusumetso e kholo ka ho fetisisa mabapi le karabelo ea ho kopana pakeng tsa likaroloana tsa samente le metsi, kahoo e na le phello e hlakileng ka ho fetisisa ea ho lieha ho fihla tlhorong ea boraro ea hydration exothermic. Ho monngoa ha metsi ha HEMC ka ho nkela sebaka se phahameng ho matla haholo ho feta HEMC e nang le sebaka se tlase. Ka lebaka leo, metsi a mahala a amehang karabelong ea hydration lipakeng tsa meaho ea flocculated e fokotsehile, e nang le tšusumetso e kholo ho hydration ea pele ea samente e fetotsoeng ea CSA. Ka lebaka lena, tlhōrō ea boraro ea hydrothermal e lieha. Li-HEMC tse nkelang sebaka se tlaase li na le metsi a fokolang a ho kenngoa ha metsi le nako e khutšoanyane ea ketso, e leng se fellang ka ho lokolloa ha metsi a adsorbent pele ho nako le ho phalla ho eketsehileng ha palo e kholo ea likaroloana tsa samente tse se nang metsi. Phapang e fokolang le ho monya metsi ho na le litlamorao tse fapaneng tsa morao-rao molemong oa ho qhibiliha le phetoho ea samente ea CSA, e leng se bakang phapano ho phahamisong ea hydration ea samente qetellong ea CE.
2.2 Tlhahlobo ea lihlahisoa tsa hydration
2.2.1 Tšusumetso ea litaba tsa CE ho lihlahisoa tsa hydration
Fetola TG DTG curve ea CSA metsi slurry ka litaba tse fapaneng tsa L HEMC; Likahare tsa metsi a tlanngoeng ke lik'hemik'hale ww le lihlahisoa tsa hydration AFt le AH3 wAFt le wAH3 li baloa ho latela li-curve tsa TG. Liphetho tse baliloeng li bontšitse hore li-curve tsa DTG tsa pente ea samente e hloekileng ea CSA li bonts'itse litlhoro tse tharo ho 50 ~ 180 ℃, 230 ~ 300 ℃ le 642 ~ 975 ℃. E tsamaellana le AFt, AH3 le decomposition ea dolomite, ka ho latellana. Ka hydration 2.0 h, TG curves ea L HEMC modified CSA slurry a fapane. Ha karabelo ea hydration e fihla ho 12.0 h, ha ho na phapang e kholo ho li-curve. Ka 2.0h hydration, lik'hemik'hale tse tlamang metsi ka metsi a wL = 0%, 0.1%, 0.5% L HEMC e fetotsoeng CSA pente ea samente e ne e le 14.9%, 16.2%, 17.0%, le AFt content e ne e le 32.8%, 35.2%, 36.7%. ka ho latellana. Litaba tsa AH3 e ne e le 3.1%, 3.5% le 3.7%, ka ho latellana, ho bontša hore ho kenngoa ha L HEMC ho ntlafalitse tekanyo ea hydration ea samente slurry hydration bakeng sa 2.0 h, le ho eketsa tlhahiso ea lihlahisoa tsa hydration AFt le AH3, ke hore, e khothaletsoa. hydration ea samente ea CSA. Sena se ka 'na sa e-ba hobane HEMC e na le lihlopha tse peli tsa hydrophobic methyl le hydrophilic group hydroxyethyl, e nang le ts'ebetso e phahameng ea holim'a metsi 'me e ka fokotsa haholo tsitsipano ea holim'a metsi a slurry ea samente. Ka nako e ts'oanang, e na le phello ea ho kenya moea ho thusa ho hlahisa lihlahisoa tsa samente tsa hydration. Ka 12.0 h of hydration, AFt le AH3 content L HEMC modified CSA samente slurry le pure CSA samente slurry ne se se na phapang e khōlō.
2.2.2 Tšusumetso ea li-substitute tsa CE le likhato tsa tsona tsa ho fetola lihlahisoa tsa hydration
TG DTG curve ea CSA samente slurry e fetotsoeng ke CE tse tharo (litaba tsa CE ke 0.5%); Liphetho tse tsamaellanang tsa lipalo tsa ww, wAFt le wAH3 ke tse latelang: ho hydration 2.0 le 4.0 h, TG curves ea li-slurries tse fapaneng tsa samente li fapane haholo. Ha hydration e fihla ho 12.0 h, li-curve tsa TG tsa li-slurries tse fapaneng tsa samente ha li na phapang e kholo. Ka 2.0 h hydration, lik'hemik'hale tse nang le lik'hemik'hale tsa metsi tse hloekileng tsa CSA samente slurry le HEC, L HEMC, H HEMC e fetotsoeng CSA samente slurry ke 14.9%, 15.2%, 17.0%, 14.1%, ka ho latellana. Ka 4.0 h of hydration, TG curve ea pure CSA samente slurry e fokotsehile hanyane. Tekanyo ea hydration ea li-slurries tse tharo tsa CE tse fetotsoeng tsa CSA e ne e le kholo ho feta ea li-slurries tse hloekileng tsa CSA, 'me likahare tsa metsi a tlanngoeng ke lik'hemik'hale a HEMC e fetotsoeng CSA slurries e ne e le kholo ho feta ea HEC e fetotsoeng CSA slurries. L HEMC e fetotsoeng CSA samente seretse se tlamang lik'hemik'hale tsa metsi ke tsona tse kholo ka ho fetisisa. Qetellong, CE e nang le li-substitute le li-degree tsa substitution e na le phapang e kholo lihlahisoa tsa pele tsa hydration tsa samente ea CSA, 'me L-HEMC e na le tšusumetso e kholo ka ho fetisisa ea ho thehoa ha lihlahisoa tsa hydration. Ka 12.0 h hydration, ho ne ho se na phapang e kholo pakeng tsa sekhahla sa tahlehelo ea boima ba li-slurps tse tharo tsa CSA tse fetotsoeng tsa CSA le tsa samente tse hloekileng tsa CSA, tse neng li lumellana le liphello tsa ho lokolloa ha mocheso, tse bontšang hore CE e ile ea ama metsi a mangata haholo. CSA samente ka hare ho 12.0 h.
Hape ho ka bonoa hore AFt le AH3 tšobotsi e phahameng ea matla a L HEMC e fetotsoeng CSA slurry ke tse kholo ka ho fetisisa ho hydration 2.0 le 4.0 h. AFt content ea pure CSA slurry le HEC, L HEMC, H HEMC e fetotsoeng CSA slurry e ne e le 32.8%, 33.3%, 36.7% le 31.0%, ka ho latellana, ho 2.0h hydration. Likahare tsa AH3 e ne e le 3.1%, 3.0%, 3.6% le 2.7%, ka ho latellana. Ka 4.0 h ea hydration, litaba tsa AFt e ne e le 34.9%, 37.1%, 41.5% le 39.4%, 'me AH3 e ne e le 3.3%, 3.5%, 4.1% le 3.6%, ka ho latellana. Ho ka bonoa hore L HEMC e na le ts'ebetso e matla ka ho fetisisa ea ho khothalletsa ho thehoa ha lihlahisoa tsa hydration tsa samente ea CSA, 'me phello e khothalletsang ea HEMC e matla ho feta ea HEC. Ha e bapisoa le L-HEMC, H-HEMC e ntlafalitse viscosity e matla ea tharollo ea pore haholo, kahoo e ama lipalangoang tsa metsi, e leng se fellang ka ho fokotseha ha sekhahla sa ho kenella ha slurry, le ho ama tlhahiso ea sehlahisoa sa hydration ka nako ena. Ha ho bapisoa le li-HEMC, phello ea hydrogen bonding ka limolek'hule tsa HEC e totobetse haholoanyane, 'me phello ea ho monya metsi e matla ebile e tšoarella nako e telele. Ka nako ena, phello ea ho monya metsi ea li-HEMC tse peli tse phahameng le li-HEMC tse tlaase ha li sa totobala. Ntle le moo, CE e theha "loop e koetsoeng" ea lipalangoang tsa metsi sebakeng se senyenyane ka har'a slurry ea samente, mme metsi a lokollotsoeng butle ke CE a ka sebetsana ka kotloloho le likaroloana tsa samente tse potolohileng. Ka 12.0 h ea hydration, liphello tsa CE ho AFt le AH3 tlhahiso ea CSA samente slurry e ne e se e se ea bohlokoa.

3. Qetello
(1) The hydration ea sulfoaluminate (CSA) sludge ka 45.0 min ~ 10.0 h e ka khothalletsoa ka tekanyo e fapaneng ea hydroxyethyl methyl fibrin (L HEMC).
(2) Hydroxyethyl cellulose (HEC), high substitution hydroxyethyl methyl cellulose (H HEMC), L HEMC HEMC, tsena tse tharo tsa hydroxyethyl cellulose ether (CE) li liehile ho qhala le ho fetola boemo ba CSA samente hydration, le ho khothalletsa ho phalla ha 2.0 ~ 10.0 h.
(3) Kenyelletso ea methyl ho hydroxyethyl CE e ka ntlafatsa haholo phello ea eona ea ts'ebetso ho hydration ea samente ea CSA ka 2.0 ~ 5.0 h, 'me phello ea ts'ebetso ea L HEMC ho hydration ea samente ea CSA e matla ho feta H HEMC.
(4) Ha litaba tsa CE li le 0.5%, palo ea AFt le AH3 e hlahisoang ke L HEMC e fetotsoeng CSA slurry ka hydration 2.0 le 4.0 h ke eona e phahameng ka ho fetisisa, 'me phello ea ho khothalletsa metsi ke eona ea bohlokoa ka ho fetisisa; H HEMC le HEC e fetotsoeng CSA slurries e hlahisitse litaba tse phahameng tsa AFt le AH3 ho feta li-slurries tse hloekileng tsa CSA feela ka 4.0 h ea hydration. Ka 12.0 h ea hydration, litlamorao tsa 3 CE ho lihlahisoa tsa hydration tsa samente ea CSA li ne li se li le bohlokoa.