Zotsatira za hydroxyethyl cellulose ether pa hydration oyambirira a CSA simenti

Zotsatira zahydroxyethyl cellulose (HEC)ndi mkulu kapena wotsika m'malo hydroxyethyl methyl cellulose (H HMEC, L HEMC) pa oyambirira hydration ndondomeko ndi hydration mankhwala a sulfoaluminate (CSA) simenti anaphunzira. Zotsatira zinawonetsa kuti zosiyana za L-HEMC zikhoza kulimbikitsa kusungunuka kwa simenti ya CSA mu 45.0 min ~ 10.0 h. Ma etha onse atatu a cellulose adachedwetsa kusungunuka kwa simenti ndikusintha gawo la CSA koyamba, kenako kulimbikitsa kutulutsa mkati mwa 2.0 ~ 10.0 h. Kuyamba kwa gulu la methyl kunalimbikitsa kulimbikitsa mphamvu ya hydroxyethyl cellulose ether pa hydration ya CSA simenti, ndipo L HEMC inali ndi mphamvu yolimbikitsa kwambiri; Zotsatira za cellulose etha ndi m'malo osiyanasiyana ndi madigiri a m'malo pa mankhwala hydration mkati 12.0 h pamaso hydration ndi osiyana kwambiri. HEMC ili ndi mphamvu yolimbikitsira pazinthu za hydration kuposa HEC. L HEMC yosinthidwa CSA simenti slurry imapanga calcium-vanadite kwambiri ndi aluminium chingamu pa 2.0 ndi 4.0 h ya hydration.
Mawu ofunika: simenti ya sulfoaluminate; Cellulose ether; Wolowa m'malo; Digiri ya m'malo; Njira ya hydration; Hydration mankhwala

Simenti ya Sulfoaluminate (CSA) yokhala ndi anhydrous calcium sulfoaluminate (C4A3) ndi boheme (C2S) monga mchere waukulu wa clinker uli ndi ubwino woumitsa mofulumira komanso mphamvu zoyamba, anti-freezing ndi anti-permeability, alkalinity yochepa, komanso kutentha pang'ono kupanga, ndi kugaya kosavuta kwa clinker. Amagwiritsidwa ntchito kwambiri pokonza mwachangu, anti-permeability ndi ntchito zina. Cellulose ether (CE) imagwiritsidwa ntchito kwambiri pakusintha matope chifukwa chosunga madzi komanso kukhuthala. CSA simenti hydration reaction ndi yovuta, nthawi yophunzitsira ndi yaifupi kwambiri, nthawi yothamangitsira imakhala yamitundu yambiri, ndipo ma hydration ake amatha kutengera kusakaniza ndi kuchiritsa kutentha. Zhang et al. adapeza kuti HEMC imatha kutalikitsa nthawi yoyambira ya simenti ya CSA ndikupanga nsonga yayikulu ya hydration kutentha kutulutsa. Sun Zhenping et al. anapeza kuti zotsatira za kuyamwa kwa madzi za HEMC zinakhudza hydration oyambirira a simenti slurry. Wu Kai et al. ankakhulupirira kuti kutsekemera kofooka kwa HEMC pamwamba pa simenti ya CSA sikunali kokwanira kukhudza kutentha kwa kutentha kwa simenti hydration. Zotsatira za kafukufuku pa zotsatira za HEMC pa CSA simenti hydration sizinali zofanana, zomwe zingayambitsidwe ndi zigawo zosiyana za simenti zogwiritsidwa ntchito. Wan et al. anapeza kuti kusungirako madzi kwa HEMC kunali bwino kuposa hydroxyethyl cellulose (HEC), ndi kukhuthala kwamphamvu ndi kugwedezeka kwapamwamba kwa dzenje la HEMC-modified CSA simenti slurry ndi digiri yapamwamba yolowa m'malo inali yaikulu. Li Jian et al. anayang'anitsitsa kusintha koyambirira kwa kutentha kwa mkati kwa HEMC-modified CSA simenti matope pansi pa madzimadzi osasunthika ndipo anapeza kuti chikoka cha HEMC ndi madigiri osiyana olowa m'malo anali osiyana.
Komabe, kafukufuku woyerekeza pa zotsatira za CE ndi zolowa m'malo osiyanasiyana ndi madigiri olowa m'malo pa hydration yoyambirira ya simenti ya CSA sikokwanira. Papepalali, zotsatira za hydroxyethyl cellulose ether ndi zosiyana, magulu olowa m'malo ndi madigiri olowa m'malo pa hydration oyambirira a simenti ya CSA adaphunzira. Lamulo lotulutsa kutentha kwa hydration la simenti ya 12h yosinthidwa CSA yokhala ndi hydroxyethyl cellulose ether idawunikidwa mozama, ndipo zinthu za hydration zidawunikidwa mochulukira.

1. Mayeso
1.1 Zida Zopangira
Simenti ndi simenti ya 42.5 yolimba msanga ya CSA, nthawi yoyamba komanso yomaliza yokhazikitsa ndi 28 min ndi 50 min, motsatana. Kapangidwe kake ka mankhwala ndi kaphatikizidwe ka mchere (kagawo kakang'ono, mlingo ndi chiŵerengero cha simenti yamadzi chomwe chatchulidwa mu pepalali ndi kagawo kakang'ono kapena chiŵerengero cha misa) chosinthira CE chimaphatikizapo 3 hydroxyethyl cellulose ethers ndi kukhuthala kofanana: Hydroxyethyl cellulose (HEC), high degree of substitution hydroxyethyl methyl cellulose (H HEMC), otsika digiri ya m'malo hydroxyethyl methyl fibrin (L HEMC), mamasukidwe akayendedwe a 32, 37, 36 Pa · s, digiri ya m'malo 2.5, 1.9, 1.6 kusakaniza madzi kwa deionized madzi.
1.2 Mix chiŵerengero
Kukhazikika kwa simenti yamadzi ya 0.54, zomwe zili mu L HEMC (zomwe zili m'nkhaniyi zimawerengedwa ndi khalidwe lamatope a madzi) wL = 0%, 0.1%, 0.2%, 0.3%, 0.4%, 0.5%, HEC ndi H HEMC zili ndi 0.5%. Mu pepala ili: L HEMC 0.1 wL = 0.1% L HEMC kusintha CSA simenti, ndi zina zotero; CSA ndi simenti yoyera ya CSA; HEC yosinthidwa CSA simenti, L HEMC yosinthidwa CSA simenti, H HEMC yosinthidwa CSA simenti imatchedwa HCSA, LHCSA, HHCSA.
1.3 Njira yoyesera
Makina asanu ndi atatu a isothermal micrometer okhala ndi kuchuluka kwa 600 mW adagwiritsidwa ntchito kuyesa kutentha kwa hydration. Asanayesedwe, chidacho chidakhazikika pa (20 ± 2) ℃ ndi chinyezi wachibale RH = (60 ± 5)% kwa 6.0 ~ 8.0 h. Simenti ya CSA, CE ndi madzi osakaniza adasakanizidwa molingana ndi chiŵerengero chosakaniza ndi kusakaniza kwa magetsi kunachitidwa kwa 1min pa liwiro la 600 r / min. Nthawi yomweyo yesani (10.0±0.1) g slurry mu ampoule, ikani ampoule mu chida ndikuyamba kuyesa nthawi. Kutentha kwa hydration kunali 20 ℃, ndipo deta inalembedwa mphindi 1 iliyonse, ndipo kuyesako kunatha mpaka 12.0h.
Kusanthula kwa Thermogravimetric (TG): Cement slurry idakonzedwa molingana ndi ISO 9597-2008 Cement - Njira zoyesera - Kutsimikiza kwa nthawi komanso kumveka bwino. Wosakaniza simenti slurry anayikidwa mu nkhungu mayeso 20 mm × 20 mm × 20 mm, ndipo pambuyo kugwedera yokumba kwa nthawi 10, anaikidwa pansi (20 ± 2) ℃ ndi RH = (60 ± 5)% kuchiritsa. Zitsanzo zidatengedwa pazaka za t = 2.0, 4.0 ndi 12.0 h, motsatana. Pambuyo pochotsa pamwamba pa chitsanzo (≥1 mm), idathyoledwa kukhala tiziduswa tating'ono ndikuviikidwa mu mowa wa isopropyl. Mowa wa Isopropyl udasinthidwa 1d iliyonse kwa masiku 7 motsatizana kuti kuwonetsetsa kuyimitsidwa kwathunthu kwa hydration reaction, ndikuwumitsa pa 40 ℃ mpaka kulemera kosalekeza. Kulemera (75 ± 2) mg zitsanzo mu crucible, kutentha zitsanzo kuchokera 30 ℃ mpaka 1000 ℃ pa kutentha mlingo wa 20 ℃/mphindi mu nayitrogeni chikhalidwe pansi adiabatic chikhalidwe. Kuwola kwamafuta a CSA simenti hydration mankhwala makamaka kumachitika pa 50 ~ 550 ℃, ndipo zili m'madzi omangidwa ndi mankhwala akhoza kuwapeza powerengera kutayika kwa misa ya zitsanzo mkati mwa izi. AFt idataya madzi 20 a crystalline ndipo AH3 idataya madzi a crystalline 3 pakuwola kwa kutentha pa 50-180 ℃. Zomwe zili mumtundu uliwonse wa hydration zitha kuwerengedwa motengera TG curve.

2. Zotsatira ndi zokambirana
2.1 Kusanthula kwa hydration process
2.1.1 Mphamvu ya zomwe zili mu CE pamayendedwe a hydration
Malinga ndi ma hydration ndi ma exothermic mapindikidwe azinthu zosiyanasiyana L HEMC zosinthidwa CSA simenti slurry, pali nsonga 4 zamphamvu za hydration ndi ma exothermic mapindikidwe a CSA simenti slurry (wL = 0%). The hydration ndondomeko akhoza kugawidwa mu Kutha siteji (0 ~ 15.0min), kusintha siteji (15.0 ~ 45.0min) ndi mathamangitsidwe siteji (45.0min) ~ 54.0min), deceleration siteji (54.0min ~ 2.0h), zazikulu mgwirizano siteji ( 2.0 ~ 4.0h), recceleration stage (4.0 ~ 5.0h), redeceleration stage (5.0 ~ 10.0h) ndi stabilization stage (10.0h~). Mu 15.0min pamaso hydration, simenti mchere kusungunuka mofulumira, ndipo woyamba ndi wachiwiri hydration exothermic nsonga mu siteji iyi ndi 15.0-45.0 mphindi n'zogwirizana ndi mapangidwe metastable gawo AFt ndi kusintha kwake kwa monosulfide kashiamu aluminate hydrate (AFm), motero. Pachimake chachitatu cha exothermal pa 54.0min ya hydration idagwiritsidwa ntchito kugawa magawo a hydration mathamangitsidwe ndi ma deceleration, ndipo mibadwo ya AFt ndi AH3 idatenga izi ngati malo osinthira, kuyambira pakutsika mpaka kutsika, kenako ndikulowa mugawo lokhazikika la 2.0 h. . Pamene hydration anali 4.0h, hydration kachiwiri analowa siteji ya mathamangitsidwe, C4A3 ndi kuvunda mofulumira ndi m'badwo wa mankhwala hydration, ndipo pa 5.0h, nsonga ya hydration kutentha exothermic anaonekera, ndiyeno analowanso siteji deceleration kachiwiri. Hydration idakhazikika pambuyo pa 10.0h.
Chikoka cha L HEMC zomwe zili pa CSA simenti hydration dissolutionndi kutembenuka siteji ndi osiyana: pamene L HEMC okhutira ndi otsika, L HEMC kusinthidwa CSA simenti phala yachiwiri hydration kutentha kumasulidwa pachimake anaonekera pang'ono poyambirira, kutentha kutulutsa kutentha ndi kutentha kumasulidwa nsonga mtengo ndi apamwamba kwambiri kuposa koyera CSA simenti phala; Ndi kuwonjezeka kwa zinthu za L HEMC, kutentha kwa kutentha kwa L HEMC kusinthidwa CSA simenti slurry pang'onopang'ono kunachepa, ndi kutsika kuposa slurry yoyera ya CSA simenti. Chiwerengero cha nsonga za exothermic mu hydration exothermic curve ya L HEMC 0.1 ndi yofanana ndi yoyera ya CSA simenti, koma nsonga za 3 ndi 4 za hydration exothermic zimapita ku 42.0min ndi 2.3h, motsatana, ndikuyerekeza ndi 33.5 ndi 9.0. mW/g wa phala koyera CSA simenti, nsonga zawo exothermic amachulukitsidwa mpaka 36.9 ndi 10.5 mW/g, motero. Izi zikuwonetsa kuti 0.1% L HEMC imafulumizitsa ndi kupititsa patsogolo hydration ya L HEMC yosinthidwa simenti ya CSA pa siteji yofanana. Ndipo L HEMC okhutira ndi 0.2% ~ 0.5%, L HEMC kusinthidwa CSA simenti mathamangitsidwe ndi deceleration siteji pang'onopang'ono pamodzi, ndiko kuti, wachinayi exothermic pachimake pasadakhale ndi pamodzi ndi wachitatu exothermic pachimake, pakati pa zazikulu bwino bwino siteji salinso kuonekera. , L HEMC pa CSA simenti hydration promotion effect ndi yofunika kwambiri.
L HEMC idalimbikitsa kwambiri hydration ya simenti ya CSA mu 45.0 min ~ 10.0 h. Mu 45.0min ~ 5.0h, 0.1% L HEMC imakhala ndi zotsatira zochepa pa hydration ya simenti ya CSA, koma pamene zomwe zili mu L HEMC zikuwonjezeka kufika ku 0.2% ~ 0.5%, zotsatira zake sizofunika. Izi ndizosiyana kwambiri ndi zotsatira za CE pa hydration ya simenti ya Portland. Literature maphunziro asonyeza kuti CE munali chiwerengero chachikulu cha magulu hydroxyl mu molekyulu adzakhala adsorbed padziko particles simenti ndi mankhwala hydration chifukwa asidi-m'munsi mogwirizana, motero kuchedwa hydration oyambirira a Portland simenti, ndi mphamvu mawawa; kuchedwa koonekeratu. Komabe, zinapezeka m'mabuku kuti mphamvu yotsatsa ya CE pa AFt pamwamba inali yocheperapo kuposa ya calcium silicate hydrate (C-S-H) gel, Ca (OH) 2 ndi calcium aluminate hydrate pamwamba, pomwe mphamvu yotsatsa HEMC pa CSA simenti particles inalinso yofooka kuposa ya Portland simenti particles. Kuphatikiza apo, atomu ya okosijeni pa molekyulu ya CE imatha kukonza madzi aulere m'mawonekedwe a haidrojeni chomangira ngati madzi adsorbed, kusintha mawonekedwe amadzi osunthika mumatope a simenti, ndiyeno kukhudza hydration ya simenti. Komabe, kutengeka kofooka ndi kuyamwa kwa madzi kwa CE kudzachepa pang'onopang'ono ndikuwonjezera nthawi ya hydration. Patapita nthawi, madzi adsorbed adzamasulidwa ndi zina anachita ndi unhydrated simenti particles. Kuphatikiza apo, zotsatira za CE zitha kuperekanso malo otalikirapo pazinthu zama hydration. Izi zikhoza kukhala chifukwa chake L HEMC imalimbikitsa CSA simenti hydration pambuyo pa 45.0 min hydration.
2.1.2 Chikoka cha CE cholowa m'malo ndi digiri yake pamayendedwe a hydration
Itha kuwoneka kuchokera ku hydration kutentha kutulutsa ma curve atatu CE osinthidwa CSA slurries. Poyerekeza ndi L HEMC, ma hydration heat release rate curves of HEC ndi H HEMC modified CSA slurries alinso ndi nsonga zinayi zotulutsa kutentha kwa hydration. Zonse zitatuzi za CE zachedwetsa zotsatira za kusungunuka ndi kutembenuka kwa CSA simenti hydration, ndipo HEC ndi H HEMC ali ndi zotsatira zochedwa kwambiri, zomwe zimachedwetsa kutuluka kwa siteji yofulumira ya hydration. Kuwonjezeredwa kwa HEC ndi H-HEMC kunachedwetsa pang'ono nsonga ya 3rd hydration exothermic pachimake, patsogolo kwambiri pa 4th hydration exothermic peak, ndikuwonjezera nsonga ya 4th hydration exothermic peak. Pomaliza, kutentha kwa hydration kwa ma slurries atatu a CE osinthidwa a CSA ndikokulirapo kuposa ma slurries oyera a CSA munthawi ya 2.0 ~ 10.0 h, kuwonetsa kuti ma CE atatu onse amalimbikitsa kuthira kwa simenti ya CSA pakadali pano. Mu nthawi ya hydration ya 2.0 ~ 5.0 h, kutentha kwa hydration kwa L HEMC yosinthidwa CSA simenti ndi yaikulu kwambiri, ndipo H HEMC ndi HEC ndi yachiwiri, kusonyeza kuti kupititsa patsogolo kutsika kwa HEMC pa hydration ya CSA simenti ndi yamphamvu. . Zotsatira za HEMC zinali zamphamvu kuposa za HEC, kusonyeza kuti kuyambitsidwa kwa gulu la methyl kunalimbikitsa mphamvu ya CE pa hydration ya CSA simenti. Kapangidwe kakemidwe ka CE kumakhudza kwambiri kutsatsa kwake pamwamba pa tinthu tating'ono ta simenti, makamaka kuchuluka kwa m'malo ndi mtundu wa zolowa m'malo.
Cholepheretsa cholimba cha CE ndi chosiyana ndi zolowa m'malo osiyanasiyana. HEC ili ndi hydroxyethyl yokha mu unyolo wam'mbali, womwe ndi wocheperako kuposa HEMC wokhala ndi gulu la methyl. Choncho, HEC ali amphamvu adsorption zotsatira pa CSA simenti particles ndi chikoka chachikulu pa kukhudzana anachita pakati particles simenti ndi madzi, choncho ali kwambiri zoonekeratu kuchedwa zotsatira pa lachitatu hydration exothermic pachimake. Mayamwidwe amadzi a HEMC okhala ndi m'malo mwapamwamba ndi amphamvu kwambiri kuposa a HEMC omwe ali ndi m'malo ochepa. Chotsatira chake, madzi aulere omwe amakhudzidwa ndi hydration reaction pakati pazigawo za flocculated amachepetsedwa, zomwe zimakhudza kwambiri hydration yoyamba ya simenti yosinthidwa ya CSA. Chifukwa cha izi, nsonga yachitatu ya hydrothermal imachedwa. Ma HEMC olowa m'malo otsika amakhala ndi mayamwidwe ofooka amadzi komanso nthawi yayifupi yochitapo kanthu, zomwe zimapangitsa kuti madzi asungunuke msanga komanso kuthirira madzi ambiri a simenti osatulutsidwa. Mayamwidwe ofooka komanso kuyamwa kwamadzi kumakhala ndi zotsatira zochedwetsa mosiyanasiyana pakutha kwa hydration ndikusintha gawo la simenti ya CSA, zomwe zimapangitsa kusiyana pakukweza simenti hydration kumapeto kwa CE.
2.2 Kusanthula kwazinthu za hydration
2.2.1 Mphamvu ya zinthu za CE pazinthu za hydration
Kusintha TG DTG pamapindikira a CSA madzi slurry ndi zosiyanasiyana zili L HEMC; Zomwe zili m'madzi omangidwa ndi mankhwala a ww ndi zinthu za hydration AFt ndi AH3 wAFt ndi wAH3 zidawerengedwa molingana ndi ma curve a TG. Zotsatira zowerengera zidawonetsa kuti ma curve a DTG a phala loyera la CSA adawonetsa nsonga zitatu pa 50 ~ 180 ℃, 230 ~ 300 ℃ ndi 642 ~ 975 ℃. Zogwirizana ndi AFt, AH3 ndi kuwonongeka kwa dolomite, motsatana. Pa hydration 2.0 h, TG zokhotakhota za L HEMC zosinthidwa CSA slurry ndizosiyana. Pamene hydration reaction ifika pa 12.0 h, palibe kusiyana kwakukulu mu ma curve. Pa 2.0h hydration, mankhwala omwe amamanga madzi a wL = 0%, 0.1%, 0.5% L HEMC yosinthidwa CSA simenti phala anali 14.9%, 16.2%, 17.0%, ndi AFt zili 32.8%, 35.2%, 36.7%. motsatira. Zomwe zili mu AH3 zinali 3.1%, 3.5% ndi 3.7%, motero, kusonyeza kuti kuphatikizidwa kwa L HEMC kunapititsa patsogolo hydration digiri ya simenti slurry hydration kwa 2.0 h, ndikuwonjezera kupanga hydration mankhwala AFt ndi AH3, ndiko kuti, kulimbikitsa hydration wa CSA simenti. Izi zikhoza kukhala chifukwa HEMC ili ndi gulu la hydrophobic methyl ndi hydrophilic gulu la hydroxyethyl, lomwe liri ndi ntchito yapamwamba kwambiri ndipo lingathe kuchepetsa kwambiri kuthamanga kwa madzi mu slurry ya simenti. Nthawi yomweyo, zimakhala ndi zotsatira za kulowetsa mpweya kuti zithandizire kupanga zinthu za simenti ya hydration. Pa 12.0 h ya hydration, AFt ndi AH3 zomwe zili mu L HEMC zosinthidwa CSA simenti slurry ndi koyera CSA simenti slurry analibe kusiyana kwakukulu.
2.2.2 Chikoka cha zolowa m'malo za CE ndi madigiri awo olowa m'malo pazinthu za hydration
Mkhope wa TG DTG wa CSA slurry simenti wosinthidwa ndi atatu CE (zomwe zili mu CE ndi 0.5%); Zotsatira zowerengera zofananira za ww, wAFt ndi wAH3 ndi izi: pa hydration 2.0 ndi 4.0 h, ma curve a TG a ma slurries a simenti osiyanasiyana amasiyana kwambiri. Ma hydration akafika pa 12.0 h, ma curve a TG amitundu yosiyanasiyana ya simenti alibe kusiyana kwakukulu. Pa 2.0 h hydration, madzi omangidwa ndi mankhwala a CSA simenti slurry ndi HEC, L HEMC, H HEMC yosinthidwa CSA simenti slurry ndi 14.9%, 15.2%, 17.0%, 14.1%, motero. Pa 4.0 h of hydration, curve ya TG ya slurry yoyera ya CSA simenti idatsika pang'ono. Digiri ya hydration ya atatu CE kusinthidwa CSA slurries anali wamkulu kuposa wa woyera CSA slurries, ndipo zili m'madzi omangika mankhwala HEMC kusinthidwa CSA slurries anali wamkulu kuposa HEC kusinthidwa CSA slurries. L HEMC kusinthidwa CSA simenti slurry mankhwala omanga madzi zili waukulu kwambiri. Pomaliza, CE yokhala ndi zolowa m'malo osiyanasiyana ndi ma degree olowa m'malo imakhala ndi kusiyana kwakukulu pazinthu zoyambira za hydration za simenti ya CSA, ndipo L-HEMC ili ndi kulimbikitsa kwakukulu pakupanga zinthu za hydration. Pa 12.0 h hydration, panalibe kusiyana kwakukulu pakati pa kutayika kwakukulu kwa atatu CE kusinthidwa CSA simenti slurps ndi wangwiro CSA simenti slurps, zomwe zinali zogwirizana ndi kuchulukana kutentha kutulutsa zotsatira, kusonyeza kuti CE anangokhudza kwambiri hydration wa CSA simenti mkati mwa 12.0 h.
Zitha kuwonekanso kuti AFt ndi AH3 nsonga yapamwamba yamphamvu ya L HEMC yosinthidwa CSA slurry ndi yayikulu kwambiri pa hydration 2.0 ndi 4.0 h. AFt zili ndi CSA slurry yoyera ndi HEC, L HEMC, H HEMC yosinthidwa CSA slurry inali 32.8%, 33.3%, 36.7% ndi 31.0%, motero, pa 2.0h hydration. Zomwe zili mu AH3 zinali 3.1%, 3.0%, 3.6% ndi 2.7%, motero. Pa 4.0 h ya hydration, AFt zili 34.9%, 37.1%, 41.5% ndi 39.4%, ndipo AH3 zili 3.3%, 3.5%, 4.1% ndi 3.6%, motero. Zitha kuwoneka kuti L HEMC ili ndi mphamvu yolimbikitsa kwambiri pakupanga zinthu za hydration za simenti ya CSA, ndipo zotsatira zolimbikitsa za HEMC zimakhala zamphamvu kuposa za HEC. Poyerekeza ndi L-HEMC, H-HEMC inathandiza kwambiri kusinthasintha kwa kayendedwe ka pore, motero kumakhudza kayendedwe ka madzi, zomwe zimapangitsa kuchepa kwa slurry kulowa, komanso kukhudza kupanga mankhwala a hydration panthawiyi. Poyerekeza ndi HEMCs, mphamvu ya haidrojeni yolumikizana ndi mamolekyu a HEC imawonekera kwambiri, ndipo kuyamwa kwamadzi kumakhala kwamphamvu komanso kotalika. Panthawiyi, kuyamwa kwa madzi kwa ma HEMC onse olowa m'malo mwa HEMC ndi ma HEMC ocheperako sikukuwonekeranso. Kuphatikiza apo, CE imapanga "chizungulire" choyendera madzi mu micro-zone mkati mwa slurry ya simenti, ndipo madzi otulutsidwa pang'onopang'ono ndi CE amatha kuchitapo kanthu mwachindunji ndi tinthu tating'ono ta simenti. Pa 12.0 h ya hydration, zotsatira za CE pa AFt ndi AH3 kupanga CSA simenti slurry sizinali zofunikira.

3. Mapeto
(1) The hydration ya sulfoaluminate (CSA) sludge mu 45.0 min ~ 10.0 h ikhoza kulimbikitsidwa ndi mlingo wosiyana wa hydroxyethyl methyl fibrin (L HEMC).
(2) Hydroxyethyl cellulose (HEC), high substitution hydroxyethyl methyl cellulose (H HEMC), L HEMC HEMC, atatuwa hydroxyethyl cellulose ether (CE) achedwetsa kusungunuka ndi kutembenuka kwa CSA simenti hydration, ndikulimbikitsa hydration 2.0 ~ 10.0h ku.
(3) Kukhazikitsidwa kwa methyl mu hydroxyethyl CE kumatha kupititsa patsogolo kwambiri kupititsa patsogolo kwa simenti ya CSA mu 2.0 ~ 5.0 h, ndipo kulimbikitsa kwa L HEMC pa hydration ya CSA simenti ndi yamphamvu kuposa H HEMC.
(4) Pamene zomwe zili mu CE ndi 0.5%, kuchuluka kwa AFt ndi AH3 kopangidwa ndi L HEMC kusinthidwa CSA slurry pa hydration 2.0 ndi 4.0 h ndipamwamba kwambiri, ndipo zotsatira za kulimbikitsa hydration ndizofunika kwambiri; H HEMC ndi HEC zosinthidwa za CSA slurries zinapanga AFt ndi AH3 zapamwamba kuposa zonyansa za CSA zokhazokha pa 4.0 h ya hydration. Pa 12.0 h ya hydration, zotsatira za 3 CE pazinthu za hydration za simenti ya CSA sizinali zofunikiranso.