Mmetụta nke hydroxyethyl cellulose ether na mmalite hydration nke ciment CSA

Mmetụta nkehydroxyethyl cellulose (HEC)na elu ma ọ bụ dị ala dochie hydroxyethyl methyl cellulose (H HMEC, L HEMC) na mmalite hydration usoro na hydration ngwaahịa nke sulfoaluminate (CSA) ciment a mụrụ. Nsonaazụ gosiri na ọdịnaya dị iche iche nke L-HEMC nwere ike ịkwalite hydration nke ciment CSA na 45.0 min ~ 10.0 h. All cellulose ethers atọ na-egbu oge hydration nke cement dissolution na mgbanwe ogbo nke CSA mbụ, na mgbe ahụ kwalite hydration n'ime 2.0 ~ 10.0 h. Ntinye nke otu methyl kwalitere mmetụta nkwalite nke hydroxyethyl cellulose ether na hydration nke ciment CSA, na L HEMC nwere mmetụta kachasị ike na-akwalite; Mmetụta nke cellulose ether nwere ihe dị iche iche na ogo nke nnọchi na ngwaahịa hydration n'ime awa 12.0 tupu hydration dị nnọọ iche. HEMC nwere mmetụta nkwalite siri ike na ngwaahịa hydration karịa HEC. L HEMC gbanwere CSA cement slurry na-arụpụta calcium-vanadite na aluminom chịngọm na 2.0 na 4.0 h nke hydration.
Isi okwu: sulfoaluminate ciment; cellulose ether; Onye nnọchi anya; Ọkwa nke nnọchi; Usoro hydration; Ngwaahịa hydration

Sulfoaluminate (CSA) ciment na anhydrous calcium sulfoaluminate (C4A3) na boheme (C2S) dị ka isi clinker ịnweta bụ na uru nke ngwa ngwa hardening na mmalite ike, mgbochi kefriza na mgbochi permeability, ala alkalinity, na obere okpomọkụ oriri na. mmepụta usoro, na mfe egweri nke clinker. A na-eji ya n'ọtụtụ ebe na nrụzi ngwa ngwa, mgbochi permeability na ọrụ ndị ọzọ. A na-eji cellulose ether (CE) eme ihe n'ọtụtụ ebe n'ịgbanwe ngwa agha n'ihi na ọ na-ejigide mmiri na ihe na-eme ka ọ sie ike. CSA cement hydration mmeghachi omume dị mgbagwoju anya, oge ntinye dị mkpụmkpụ, oge osooso bụ multi-stage, na hydration ya dị mfe na mmetụta nke admixture na ọgwụgwọ okpomọkụ. Zhang et al. chọpụtara na HEMC nwere ike ịgbatị oge ntinye nke hydration nke ciment CSA ma mee ka ọnụ ọgụgụ kasị elu nke hydration okpomọkụ hapụ lag. Sun Zhenping et al. chọpụtara na mmetụta nnabata mmiri HEMC na-emetụta mmalite hydration nke ciment slurry. Wu Kai et al. kwenyere na mgbasa ozi na-adịghị ike nke HEMC n'elu ciment CSA ezughi oke iji metụta ọnụego mwepụta okpomọkụ nke ciment hydration. Nsonaazụ nyocha na mmetụta HEMC na hydration ciment CSA abụghị otu, nke nwere ike ibute site na akụkụ dị iche iche nke ciment clinker eji. Wan et al. chọpụtara na njide mmiri nke HEMC dị mma karịa nke hydroxyethyl cellulose (HEC), na viscosity dị ike na esemokwu elu nke oghere oghere nke HEMC-gbanwetụrụ CSA cement slurry nwere ogo nnọchi elu dị elu. Li Jian et al. Nyochaa mgbanwe mgbanwe okpomọkụ dị n'ime ụlọ nke HEMC-gbanwetụrụ CSA simenti n'okpuru mmiri edobere ma chọpụta na mmetụta HEMC nwere ogo dị iche iche nke nnọchi dị iche.
Otú ọ dị, ọmụmụ ihe atụnyere mmetụta nke CE na ihe dị iche iche na ogo nke nnọchi na mmalite hydration nke ciment CSA ezughị. N'ime akwụkwọ a, a na-amụ mmetụta nke hydroxyethyl cellulose ether nwere ọdịnaya dị iche iche, ndị nnọchiteanya na ogo nke nnọchi na mmalite hydration nke ciment CSA. A na-enyocha nke ọma iwu ntọhapụ okpomọkụ hydration nke 12h gbanwere CSA cement na hydroxyethyl cellulose ether, na-enyochakwa ngwaahịa hydration nke ọma.

1. Nwale
1.1 Akụrụngwa
Simenti bụ 42.5 ọkwa siri ike ngwa ngwa CSA ciment, oge mbụ na nke ikpeazụ bụ 28 min na 50 min, n'otu n'otu. Ngwakọta kemịkalụ ya na ihe mejupụtara mineral (irighiri uka, usoro onunu na mmiri-ciment nke a kpọtụrụ aha n'akwụkwọ a bụ akụkụ nke oke ma ọ bụ oke oke) modifier CE gụnyere 3 hydroxyethyl cellulose ethers nwere viscosity yiri ya: Hydroxyethyl cellulose (HEC), ogo dị elu nke nnọchi hydroxyethyl. methyl cellulose (H HEMC), ogo dị ala nke nnọchi hydroxyethyl methyl fibrin (L HEMC), viscosity nke 32, 37, 36 Pa·s, ogo nnọchi nke 2.5, 1.9, 1.6 ịgwakọta mmiri maka mmiri deionized.
Ngwakọta ngwakọta 1.2
Akwụsịghị mmiri-ciment ruru 0.54, ọdịnaya nke L HEMC (a na-agbakọ ọdịnaya nke isiokwu a site na àgwà nke apịtị mmiri) wL = 0%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, HEC na H HEMC ọdịnaya nke 0.5%. N'akwụkwọ a: L HEMC 0.1 wL = 0.1% L HEMC gbanwere ciment CSA, na ihe ndị ọzọ; CSA bụ ciment CSA dị ọcha; HEC gbanwere CSA ciment, L HEMC gbanwere CSA ciment, H HEMC gbanwere CSA ciment ka a na-akpọkwa HCSA, LHCSA, HHCSA.
1.3 Usoro ule
A na-eji micrometer isothermal chanel asatọ nwere oke nha 600mW iji nwalee okpomọkụ nke hydration. Tupu ule ahụ, a kwadoro ngwá ọrụ ahụ na (20± 2) ℃ na iru mmiri RH = (60± 5)% maka 6.0 ~ 8.0 h. A na-agwakọta simenti CSA, CE na mmiri na-agwakọta dị ka ngwakọta ahụ si dị na ngwakọta eletrik e mere maka 1min na ọsọ nke 600 r / min. Ngwa ngwa tụọ (10.0± 0.1) g slurry n'ime ampoule, tinye ampoule n'ime ngwa wee malite ule oge. Okpomọkụ hydration dị 20 ℃, ma dekọọ data ahụ kwa nkeji 1, ule ahụ wee ruo 12.0h.
Nyocha Thermogravimetric (TG): A kwadebere slurry ciment dị ka TS ISO 9597-2008 ciment - Ụzọ nnwale - Mkpebi ịtọ oge na ịdị mma. The agwakọta ciment slurry e tinyere n'ime ule ebu nke 20 mm × 20 mm × 20 mm, na mgbe wuru vibration maka 10 ugboro, ọ enịm n'okpuru (20 ± 2) ℃ na RH = (60 ± 5)% maka ọgwụgwọ. E wepụrụ ihe nlele ahụ na afọ t=2.0, 4.0 na 12.0 h, n'otu n'otu. Mgbe o wepụsịrị oyi akwa nke ihe nlele (≥1 mm), a na-agbaji ya n'ime obere iberibe ma tinye ya na mmanya isopropyl. A na-edochi mmanya isopropyl ọ bụla 1d maka ụbọchị 7 sochirinụ iji hụ na nkwusioru nke mmeghachi omume hydration zuru oke, ma kpọọ nkụ na 40 ℃ na ịdị arọ mgbe niile. Were (75± 2) mg samples n'ime crucible, kpoo ihe nlele site na 30 ℃ ruo 1000 ℃ na ọnụego okpomọkụ nke 20 ℃ / min na ikuku nitrogen n'okpuru ọnọdụ adiabatic. The thermal decomposition nke CSA ciment hydration ngwaahịa tumadi emee na 50 ~ 550 ℃, na ọdịnaya nke chemically agbụ mmiri nwere ike nweta site ịgbakọ uka ọnwụ ọnụego nke samples n'ime nke a nso. AFt tụfuru mmiri kristal 20 na AH3 tụfuru mmiri kristal 3 n'oge ire ere ọkụ na 50-180 ℃. Enwere ike gbakọọ ọdịnaya nke ngwaahịa hydration ọ bụla dabere na usoro TG.

2. Nsonaazụ na mkparịta ụka
2.1 Nyocha nke usoro hydration
2.1.1 Mmetụta nke ọdịnaya CE na usoro hydration
Dị ka hydration na exothermic curves nke dị iche iche ọdịnaya L HEMC gbanwere CSA ciment slurry, e nwere 4 exothermic ọnụ ọnụ na hydration na exothermic curves nke dị ọcha CSA ciment slurry (wL = 0%). Enwere ike kewaa usoro hydration n'ime ogbo mgbasa (0 ~ 15.0min), ogbo mgbanwe (15.0 ~ 45.0min) na osooso ogbo (45.0min) ~ 54.0min), deceleration ogbo (54.0min ~ 2.0h), ike nha nhata ogbo (15.0 ~ 45.0min). 2.0 ~ 4.0h), reacceleration ogbo (4.0 ~ 5.0h), redeceleration ogbo (5.0 ~ 10.0h) na stabilization ogbo (10.0h ~). Na 15.0min tupu hydration, mineral ciment gbazere ngwa ngwa, na nke mbụ na nke abụọ hydration exothermic ọnụ ọgụgụ nke a ogbo na 15.0-45.0 min kwekọrọ na e guzobere metastable frasi AFt na ya mgbanwe na monosulfide calcium aluminate hydrate (AFm), n'otu n'otu. A na-eji ọnụ ọgụgụ kasị elu nke atọ dị na 54.0min nke hydration kewaa hydration acceleration na deceleration nkebi, na ọnụ ọgụgụ ọgbọ nke AFt na AH3 weere nke a dị ka ihe ntụgharị uche, site na ọganihu ka ọ daa, wee banye n'usoro nha nha na-adịru 2.0 h. . Mgbe hydration bụ 4.0h, hydration ọzọ banye ogbo nke osooso, C4A3 bụ ngwa ngwa mgbasa na ọgbọ nke hydration ngwaahịa, na na 5.0h, a ọnụ ọgụgụ kasị elu nke hydration exothermic okpomọkụ pụtara, wee banye ogbo nke deceleration ọzọ. hydration kwụsiri ike mgbe ihe dị ka elekere 10.0 gachara.
Mmetụta nke ọdịnaya L HEMC na CSA cement hydration dissolutionna ntọghata ogbo dị iche iche: mgbe L HEMC ọdịnaya dị ala, L HEMC gbanwetụrụ CSA ciment mado nke abụọ hydration okpomọkụ ntọhapụ elu pụtara ubé na mbụ, okpomọkụ ntọhapụ ọnụego na okpomọkụ ntọhapụ ọnụ ahịa bụ budata elu karịa ọcha CSA ciment mado; Site na mmụba nke ọdịnaya L HEMC, ọnụego ntọhapụ okpomọkụ nke L HEMC gbanwere CSA cement slurry ji nwayọọ nwayọọ na-ebelata, ma dị ala karịa slurry ciment CSA dị ọcha. Ọnụ ọgụgụ nke exothermic ọnụ ọgụgụ dị elu na hydration exothermic curve nke L HEMC 0.1 bụ otu ihe ahụ dị ọcha CSA cement mado, ma 3rd na 4th hydration exothermic ọnụ ọgụgụ kasị elu na 42.0min na 2.3h, n'otu n'otu, ma jiri ya tụnyere 33.5 na 9.0. mW/g nke CSA ciment tapawa dị ọcha, a na-abawanye elu ha exothermic ruo 36.9 na 10.5 mW/g, n'otu n'otu. Nke a na-egosi na 0.1% L HEMC na-eme ngwa ngwa ma na-akwalite hydration nke L HEMC gbanwetụrụ CSA simenti na ọkwa kwekọrọ. Na L HEMC ọdịnaya bụ 0.2% ~ 0.5%, L HEMC gbanwetụrụ CSA ciment osooso na deceleration ogbo ji nwayọọ nwayọọ na-ejikọta, ya bụ, nke anọ exothermic elu n'ihu na jikọtara ya na nke atọ exothermic elu, n'etiti nke ike itule ogbo agaghịkwa apụta. , L HEMC na CSA ciment hydration nkwalite mmetụta dị ịrịba ama karị.
L HEMC kwalitere hydration nke ciment CSA na 45.0 min ~ 10.0 h. Na 45.0min ~ 5.0h, 0.1% L HEMC nwere obere mmetụta na hydration nke CSA ciment, ma mgbe ọdịnaya nke L HEMC na-abawanye na 0.2% ~ 0.5%, mmetụta adịghị mkpa. Nke a dị nnọọ iche na mmetụta CE na hydration nke simenti Portland. Ọmụmụ akwụkwọ egosila na CE nke nwere ọnụ ọgụgụ dị ukwuu nke hydroxyl dị na molecule ga-adaba n'elu akụkụ ciment na ngwaahịa hydration n'ihi mmekọrịta acid-base, si otú a na-egbu oge mmalite hydration nke Portland ciment, na ike adsorption. nke doro anya na igbu oge. Otú ọ dị, achọpụtara n'akwụkwọ ndị ahụ na ike adsorption nke CE n'elu AFt adịghị ike karịa nke calcium silicate hydrate (C-S-H) gel, Ca (OH) 2 na calcium aluminate hydrate elu, ebe ikike adsorption nke HEMC dị na simenti CSA dịkwa ike karịa nke ahụ na simenti Portland. Na mgbakwunye, ikuku oxygen dị na molekul CE nwere ike idozi mmiri efu n'ụdị nke njikọ hydrogen dị ka mmiri a na-ekpo ọkụ, gbanwee ọnọdụ mmiri na-ekpo ọkụ na cement slurry, wee metụta hydration ciment. Agbanyeghị, nnabata adịghị ike na mmịnye mmiri nke CE ga-eji nwayọọ nwayọọ na-ebelata site na ịgbatị oge hydration. Mgbe oge ụfọdụ gasịrị, a ga-ahapụ mmiri a na-ekpo ọkụ ma meghachi omume na akụkụ ciment na-adịghị edozi. Ọzọkwa, mmetụta mmalite nke CE nwekwara ike inye ohere dị ogologo maka ngwaahịa hydration. Nke a nwere ike ịbụ ihe kpatara L HEMC ji akwalite hydration ciment CSA mgbe 45.0 min hydration gasịrị.
2.1.2 Mmetụta nke ihe nnọchi CE na ogo ya na usoro hydration
Enwere ike ịhụ ya site na akụkụ ntọhapụ okpomọkụ nke hydration nke CSA slurries atọ gbanwere CE. Tụnyere L HEMC, hydration okpomọkụ ntọhapụ ọnụego curves nke HEC na H HEMC gbanwetụrụ CSA slurries nwekwara anọ hydration okpomọkụ tọhapụ elu. All nke CE atọ nwere egbu oge mmetụta na mgbasa na ntughari nkebi nke CSA cement hydration, na HEC na H HEMC nwere ike na-egbu oge mmetụta, na-egbu oge mpụta nke accelerated hydration ogbo. Mgbakwunye nke HEC na H-HEMC na-egbu oge 3rd hydration exothermic ọnụ ọgụgụ kasị elu, budata elu nke 4th hydration exothermic peak, ma mụbaa ọnụ ọgụgụ kasị elu nke 4th hydration exothermic peak. N'ikpeazụ, hydration okpomọkụ ntọhapụ nke atọ CE gbanwetụrụ CSA slurries karịrị nke dị ọcha CSA slurries na hydration oge nke 2.0 ~ 10.0 h, na-egosi na atọ CE niile na-akwalite hydration nke CSA simenti n'oge a. Na hydration oge nke 2.0 ~ 5.0 h, hydration okpomọkụ ntọhapụ nke L HEMC gbanwetụrụ CSA ciment bụ ndị kasị ibu, na H HEMC na HEC bụ nke abụọ, na-egosi na nkwalite mmetụta nke ala nnọchi HEMC na hydration nke CSA ciment bụ ike. . Mmetụta catalytic nke HEMC siri ike karịa nke HEC, na-egosi na iwebata otu methyl kwalitere mmetụta catalytic CE na hydration nke ciment CSA. Usoro kemịkalụ CE nwere mmetụta dị ukwuu na ntinye ya n'elu akụkụ ciment, ọkachasị ogo nnọchi na ụdị nnọchi.
Ihe mgbochi siri ike nke CE dị iche na ihe mgbakwunye dị iche iche. HEC nwere naanị hydroxyethyl n'agbụ akụkụ, nke pere mpe karịa HEMC nwere otu methyl. Ya mere, HEC nwere mmetụta mgbasa ozi kachasị ike na CSA cement particles na mmetụta kachasị na mmeghachi omume kọntaktị n'etiti cement cement na mmiri, n'ihi ya, ọ na-enwe mmetụta igbu oge na nke atọ hydration exothermic elu. Ntinye mmiri nke HEMC na ngbanwe dị elu dị ike karịa nke HEMC nwere obere nnọchi. N'ihi ya, mmiri efu na-etinye aka na mmeghachi omume hydration n'etiti ihe owuwu flocculated na-ebelata, nke nwere mmetụta dị ukwuu na hydration mbụ nke ciment CSA gbanwere. N'ihi nke a, ọnụ ọgụgụ hydrothermal nke atọ na-egbu oge. Mgbanwe dị ala HEMC nwere mmiri na-adịghị ike na obere oge ime ihe, na-ebute ntọhapụ mbụ nke mmiri adsorbent na hydration ọzọ nke ọnụ ọgụgụ dị ukwuu nke cement na-adịghị edozi. Adsorption na-adịghị ike na mmịnye mmiri nwere mmetụta dị iche iche na-egbu oge na mgbasa hydration na mgbanwe mgbanwe nke ciment CSA, na-ebute ọdịiche dị na nkwalite nke ciment hydration na njedebe nke CE.
2.2 Nyocha nke ngwaahịa hydration
2.2.1 Mmetụta nke ọdịnaya CE na ngwaahịa hydration
Gbanwee usoro TG DTG nke CSA mmiri slurry site na ọdịnaya dị iche iche nke L HEMC; A gbakọrọ ọdịnaya nke mmiri kemịkalụ ww na ngwaahịa hydration AFt na AH3 wAFt na wAH3 dịka akụkụ TG siri dị. The gbakọọ pụta gosiri na DTG akụkụ nke dị ọcha CSA ciment mado gosiri atọ kasị elu na 50 ~ 180 ℃, 230 ~ 300 ℃ na 642 ~ 975 ℃. Na-adaba na AFt, AH3 na emebi dolomite, n'otu n'otu. Na hydration 2.0 h, akụkụ TG nke L HEMC gbanwere CSA slurry dị iche. Mgbe mmeghachi omume hydration ruru awa 12.0, ọ nweghị nnukwu ọdịiche dị na akụkụ ahụ. Na 2.0h hydration, kemịkalụ na-ejikọta mmiri nke wL = 0%, 0.1%, 0.5% L HEMC gbanwere CSA cement paste bụ 14.9%, 16.2%, 17.0%, na AFt ọdịnaya bụ 32.8%, 35.2%, 36.7%, n'otu n'otu. Ọdịnaya nke AH3 bụ 3.1%, 3.5% na 3.7%, n'otu n'otu, na-egosi na incorporation nke L HEMC mere ka hydration ogo nke ciment slurry hydration maka 2.0 h, na ụba mmepụta nke hydration ngwaahịa AFt na AH3, ya bụ, kwalitere. hydration nke CSA ciment. Nke a nwere ike ịbụ n'ihi na HEMC nwere ma hydrophobic otu methyl na hydrophilic otu hydroxyethyl, nke nwere elu elu ọrụ na nwere ike budata ibelata elu erughị ala nke mmiri mmiri mmiri na ciment slurry. N'otu oge ahụ, ọ na-enwe mmetụta nke ntinye ikuku iji kwado ọgbọ nke ngwaahịa hydration ciment. Na 12.0 h nke hydration, AFt na AH3 ọdịnaya na L HEMC gbanwere CSA cement slurry na CSA cement slurry dị ọcha enweghị nnukwu ọdịiche.
2.2.2 Mmetụta nke ndị nnọchi CE na ogo ngbanwe ha na ngwaahịa hydration
Usoro TG DTG nke CSA cement slurry megharịrị site na CE atọ (ọdịnaya nke CE bụ 0.5%); Ihe ngụkọ kwekọrọ na ww, wAFt na wAH3 bụ ndị a: na hydration 2.0 na 4.0 h, TG curves nke dị iche iche ciment slurries dị nnọọ iche. Mgbe hydration ruru 12.0 h, TG curves nke ciment slurries dị iche iche enweghị nnukwu ọdịiche. Na hydration 2.0 h, mmiri kemịkalụ kemịkalụ nke dị ọcha CSA cement slurry na HEC, L HEMC, H HEMC gbanwere CSA cement slurry bụ 14.9%, 15.2%, 17.0%, 14.1%, n'otu n'otu. Na elekere 4.0 nke hydration, usoro TG nke cement cement CSA dị ọcha belatara nke kacha nta. Ogo hydration nke CE atọ gbanwere CSA slurries karịrị nke CSA slurries dị ọcha, na ọdịnaya nke mmiri kemịkalụ nke HEMC gbanwere CSA slurries karịrị nke HEC gbanwere CSA slurries. L HEMC gbanwere CSA cement slurry chemical na-ejikọta ọdịnaya mmiri bụ nke kachasị ukwuu. N'ikpeazụ, CE na ihe dị iche iche na ogo nke nnọchi nwere nnukwu ọdịiche na ngwaahịa hydration mbụ nke ciment CSA, na L-HEMC nwere mmetụta nkwalite kachasị na nhazi ngwaahịa hydration. Na hydration 12.0 h, ọ nweghị nnukwu ọdịiche dị n'etiti ọnụ ọgụgụ mfu nke oke nha atọ CE gbanwere CSA ciment slurps na nke CSA cement slurps dị ọcha, bụ nke dabara na nsonaazụ ntọhapụ okpomọkụ, na-egosi na CE naanị emetụta hydration nke CSA simenti n'ime awa 12.0.
Enwere ike ịhụ na AFt na AH3 njirimara kachasị elu nke L HEMC gbanwere CSA slurry bụ nke kachasị na hydration 2.0 na 4.0 h. AFt ọdịnaya nke dị ọcha CSA slurry na HEC, L HEMC, H HEMC gbanwere CSA slurry bụ 32.8%, 33.3%, 36.7% na 31.0%, n'otu n'otu, na 2.0h hydration. Ọdịnaya AH3 bụ 3.1%, 3.0%, 3.6% na 2.7%, n'otu n'otu. Na 4.0 h nke hydration, ọdịnaya AFt bụ 34.9%, 37.1%, 41.5% na 39.4%, na AH3 ọdịnaya bụ 3.3%, 3.5%, 4.1% na 3.6%, n'otu n'otu. Enwere ike ịhụ na L HEMC nwere mmetụta kachasị ike na-akwalite mmepụta nke ngwaahịa hydration nke ciment CSA, na nkwalite nkwalite HEMC dị ike karịa nke HEC. E jiri ya tụnyere L-HEMC, H-HEMC kwalitere viscosity siri ike nke ngwọta pore nke ọma, si otú a na-emetụta ụgbọ njem mmiri, na-ebute mbelata nke ntinye ntinye slurry, ma na-emetụta mmepụta ngwaahịa hydration n'oge a. E jiri ya tụnyere HEMC, mmetụta njikọ nke hydrogen na HEC molecules pụtara ìhè karị, na mmetụta mmịpụta mmiri na-esiwanye ike ma na-adịte aka. N'oge a, mmetụta mmịpụta mmiri nke ma elu-anọchi HEMC na obere nnọchi HEMC adịkwaghị anya. Tụkwasị na nke ahụ, CE na-emepụta "loop mechiri emechi" nke mbufe mmiri na mpaghara micro-n'ime ciment slurry, na mmiri nke CE wepụtara nwayọọ nwayọọ nwere ike imeghachi omume ozugbo na irighiri ciment gbara ya gburugburu. Na 12.0 h nke hydration, mmetụta CE na mmepụta AFt na AH3 nke CSA cement slurry adịkwaghị mkpa.

3. Nkwubi okwu
(1) Enwere ike ịkwalite hydration nke sulfoaluminate (CSA) sludge na 45.0 min ~ 10.0 h na usoro dị iche iche nke obere hydroxyethyl methyl fibrin (L HEMC).
(2) Hydroxyethyl cellulose (HEC), nnukwu nnọchi hydroxyethyl methyl cellulose (H HEMC), L HEMC HEMC, ndị a atọ hydroxyethyl cellulose ether (CE) egbula oge mgbasa na ntughari ogbo nke CSA ciment hydration, na kwalite hydration nke 2.0 ~ 10.0 h.
(3) Iwebata methyl na hydroxyethyl CE nwere ike ịkwalite mmetụta nkwalite ya na hydration nke ciment CSA na 2.0 ~ 5.0 h, na nkwalite nkwalite nke L HEMC na hydration nke CSA ciment siri ike karịa H HEMC.
(4) Mgbe ọdịnaya nke CE bụ 0.5%, ọnụọgụ AFt na AH3 nke L HEMC gbanwere CSA slurry na hydration 2.0 na 4.0 h bụ nke kachasị elu, na mmetụta nke ịkwalite hydration bụ ihe kachasị mkpa; H HEMC na HEC gbanwere CSA slurries mepụtara ọdịnaya AFt na AH3 dị elu karịa CSA slurries dị ọcha naanị na 4.0 h nke hydration. Na 12.0 h nke hydration, mmetụta nke 3 CE na ngwaahịa hydration nke ciment CSA adịkwaghị mkpa.