Cellulose Ether Viscosity Change na plasta dabere na ciment

Ịba ụba bụ mmetụta mgbanwe dị mkpa nke cellulose ether na ihe ndị dabeere na ciment. Mmetụta nke ọdịnaya ether cellulose, viscometer ntụgharị ọsọ na okpomọkụ na viscosity mgbanwe nke cellulose ether gbanwetụrụ simenti.plasta dabere a mụrụ ya. Nsonaazụ na-egosi na viscosity nke cimentplasta dabere na-abawanye na-aga n'ihu na mmụba nke cellulose ether ọdịnaya, na viscosity nke cellulose ether ngwọta na ciment.plasta dabere nwere "mkpokọta superposition mmetụta"; pseudoplasticity nke cellulose ether gbanwere cimentplasta dabere dị ala karịa nke simenti dị ọchaplasta dabere, na viscosity Na-ebelata ọsọ ntụgharị nke ngwa, ma ọ bụ na-ebelata viscosity nke cellulose ether gbanwetụrụ simenti.plasta dabere, ma ọ bụ ala ọdịnaya nke cellulose ether, ka doro anya na pseudoplasticity nke cellulose ether gbanwetụrụ simenti.plasta dabere; Site na ngwakọta nke hydration, viscosity nke cellulose ether gbanwere cimentplasta dabere ga-abawanye ma ọ bụ ibelata. Ụdị cellulose ether dị iche iche nwere mgbanwe dị iche iche na viscosity nke ciment gbanwereplasta dabere.

Isi okwu: cellulose ether; simentiplasta dabere; viscosity

0,Okwu mmalite

A na-ejikarị ethers cellulose eme ihe dị ka ihe na-ejigide mmiri na ihe ndị na-esi ísì ụtọ maka ihe ndị dabeere na ciment. Dị ka ihe dị iche iche dị iche iche si dị, cellulose ethers eji na ciment ihe n'ozuzu gụnyere methyl cellulose (MC), hydroxyethyl cellulose (HEC), hydroxyethyl methyl cellulose Ether (Hydroxyethyl methyl cellulose, HEMC) na hydroxypropyl methyl cellulose (Hydroxypropyl methyl), cellulose, HPMC. N'ime ndị HPMC na HEMC bụ ndị a na-ejikarị eme ihe.

Ịba ụba bụ mmetụta mgbanwe dị mkpa nke cellulose ether na ihe ndị dabeere na ciment. Cellulose ether nwere ike inye ngwa agha mmiri mmiri na viscosity mara mma, na-abawanye ike njikọ dị n'etiti ngwa mmiri mmiri na oyi akwa, ma melite arụmọrụ mgbochi sag nke ngwa agha ahụ. Ọ nwekwara ike dịkwuo homogeneity na mgbochi mgbasa ikike nke ọhụrụ agwakọta simenti ihe dabeere, na-egbochi delamination, segregation na ọbara ọgbụgba nke ngwa agha na ihe.

Enwere ike nyochaa mmetụta siri ike nke cellulose ether na ihe ndị dabeere na ciment site n'ụdị reological nke ihe ndị dabeere na ciment. A na-ewerekarị ihe ndị sitere na ciment dị ka mmiri mmiri Bingham, ya bụ, mgbe nrụgide shear r na-arụ ọrụ r dị ala karịa mkpụrụ nrụgide r0, ihe ahụ na-anọgide n'ụdị mbụ ya na ọ dịghị eruba; mgbe nrụgide shear r gafere oke mkpụrụ r0, ihe ahụ na-enwe nrụrụ mmiri, na nrụgide siri ike Nchegbu r nwere njikọ kwụ ọtọ na ọnụọgụ y, ya bụ, r=r0+f.·y, ebe f bụ viscosity plastik. Cellulose ethers n'ozuzu na-abawanye nrụgide mkpụrụ na viscosity rọba nke ihe ndị sitere na ciment, Otú ọ dị, obere doses na-eduga n'ịbelata nrụgide mkpụrụ na viscosity plastik, tumadi n'ihi mmetụta ikuku nke cellulose ethers. Nnyocha nke Patural na-egosi na ịdị arọ nke cellulose ether na-abawanye, nrụgide mkpụrụ nke cimentplasta dabere na-ebelata, na agbanwe agbanwe na-abawanye.

The viscosity nke cimentplasta dabere bụ ihe ndeksi dị mkpa iji nyochaa mmetụta mgbochi nke cellulose ether na ihe ndị sitere na ciment. Ụfọdụ akwụkwọ enyochala iwu mgbanwe viscosity nke cellulose ether solution, ma a ka nwere enweghị nchọpụta dị mkpa na mmetụta nke cellulose ether na mgbanwe viscosity nke ciment.plasta dabere. N'otu oge ahụ, dị ka ụdị dị iche iche nke nnọchi anya, e nwere ọtụtụ ụdị cellulose ethers. Mmetụta nke ụdị dị iche iche na viscosities nke cellulose ethers na mgbanwe nke cimentplasta dabere viscosity bụkwa ihe na-echegbu onwe ya n'iji cellulose ethers eme ihe. Ọrụ a na-eji viscometer rotational iji mụọ mgbanwe viscosity nke cellulose ether gbanwetụrụ ciment slurries nke ụdị dị iche iche na viscosities n'okpuru dị iche iche poly-ash ratios, rotational ọsọ na okpomọkụ.

1. Nnwale

1.1 Akụrụngwa

(1) Cellulose ether. Ahọpụtara ụdị cellulose ethers isii nke a na-ejikarị na obodo m, gụnyere 1 ụdị MC, 1 ụdị HEC, ụdị HPMC 2 na ụdị HEMC abụọ, n'ime nke viscosities nke ụdị HPMC abụọ na ụdị HEMC abụọ bụ ihe doro anya. dị iche. A nwalere viscosity nke cellulose ether site na NDJ-1B rotational viscometer (Shanghai Changji Company), ntinye nke ngwọta ule bụ 1.0% ma ọ bụ 2.0%, okpomọkụ bụ 20.°C, na ntụgharị ntụgharị bụ 12r/min.

(2) Simenti. Simenti Portland nkịtị nke Wuhan Huaxin Cement Co., Ltd mepụtara nwere nkọwapụta nke P·O 42.5 (GB 175-2007).

1.2 Usoro nha viscosity nke ngwọta cellulose ether

Were ihe nlele cellulose ether nke àgwà a kapịrị ọnụ ma tinye ya na iko iko 250ml, wee tinye 250g nke mmiri ọkụ na ihe dịka 90.°C; kpalite nke ọma na mkpanaka iko iji mee ka cellulose ether mepụta usoro mgbasa ozi edo edo na mmiri ọkụ, ma n'otu oge ahụ tinye beaker Cool na ikuku. Mgbe ngwọta na-amalite ịmepụta viscosity ma ọ gaghị ebute ọzọ, kwụsị ịkpali ozugbo; mgbe a na-eme ka ihe ngwọta ahụ dị mma na ikuku ruo mgbe agba dị otu, tinye beaker na mmiri mmiri na-ekpo ọkụ na-ekpo ọkụ mgbe niile, ma debe okpomọkụ na okpomọkụ a kapịrị ọnụ. Njehie ahụ bụ± 0.1°C; mgbe 2h (gbakọọ site na oge kọntaktị nke cellulose ether na mmiri ọkụ), tụọ okpomọkụ nke etiti ngwọta na temometa. Mmepụta) etinyere rotor n'ime ngwọta ruo omimi akọwapụtara, mgbe ọ kwụsịrị 5min, tụọ viscosity ya.

1.3 Ntụ viscosity nke cellulose ether gbanwetụrụplasta dabere

Tupu nnwale ahụ, debe akụrụngwa niile na ọnọdụ okpomọkụ a kapịrị ọnụ, tụọ uka a kapịrị ọnụ nke cellulose ether na ciment, gwakọta ha nke ọma, gbakwunye mmiri mgbata na okpomọkụ a kapịrị ọnụ n'ime iko iko 250mL nwere oke ciment nke 0.65; wee tinye ntụ ntụ akọrọ n'ime beaker wee chere maka nkeji 3, kpalite nke ọma na mkpanaka iko maka oge 300, tinye rotor nke viscometer rotational (ụdị NDJ-1B, nke Shanghai Changji Geological Instrument Co., Ltd.) mepụtara. ngwọta na a kpọmkwem omimi, na-atụle ya viscosity mgbe guzo maka 2 nkeji. Iji zere mmetụta nke ciment hydration okpomọkụ na viscosity ule nke cimentplasta dabere dị ka o kwere mee, viscosity nke cellulose ether gbanwere cimentplasta dabere a ga-anwale mgbe ciment na-ejikọta mmiri maka nkeji 5.

2. Nsonaazụ na nyocha

2.1 Mmetụta nke cellulose ether ọdịnaya

Ọnụ ọgụgụ nke cellulose ether ebe a na-ezo aka na oke nke cellulose ether na ciment, ya bụ, oke polyash. Site na mmetụta nke P2, E2 na H1 atọ ụdị cellulose ethers na viscosity mgbanwe nke ciment.plasta dabere na usoro dị iche iche (0.1%, 0.3%, 0.6% na 0.9%), enwere ike ịhụ na mgbe agbakwunyere cellulose ether, viscosity nke ciment.plasta dabere Viscosity na-abawanye; ka ọnụọgụ cellulose ether na-abawanye, viscosity nke cimentplasta dabere na-abawanye na-aga n'ihu, na ọnụọgụ nke mmụba na viscosity nke cimentplasta dabere na-aghọkwa ibu.

Mgbe mmiri-ciment ruru 0.65 na cellulose ether ọdịnaya bụ 0.6%, na-atụle mmiri na-eri site na mmalite hydration nke ciment, ịta nke cellulose ether metụtara mmiri bụ banyere 1%. Mgbe itinye uche bụ 1%, ihe ngwọta mmiri P2, E2 na H1 Viscosities bụ 4990mPa.·S, 5070mPa·S na 5250mPa·s n'otu n'otu; mgbe mmiri-ciment ruru 0.65, viscosity nke simenti dị ọchaplasta dabere bụ 836mPa·S. Otú ọ dị, viscosities nke P2, E2 na H1 atọ cellulose ether gbanwetụrụ ciment slurries bụ 13800mPa.·S, 12900mPa·S na 12700mPa·s n'otu n'otu. N'ụzọ doro anya, viscosity nke cellulose ether gbanwetụrụ cimentplasta dabere abụghị viscosity nke cellulose ether ngwọta na Mgbakwunye dị mfe nke viscosity nke ciment dị ọcha.plasta dabere dị nnọọ ukwuu karịa nchikota nke viscosities abụọ, ya bụ, viscosity nke cellulose ether ngwọta na viscosity nke ciment.plasta dabere nwere "mkpokọta superposition mmetụta". The viscosity nke cellulose ether ngwọta na-abịa site na ike hydrophilicity nke hydroxyl otu na ether bond na cellulose ether molekul na atọ akụkụ netwọk Ọdịdị nke e guzobere cellulose ether molekul na ngwọta; viscosity nke ciment dị ọchaplasta dabere na-abịa site na netwọk kpụrụ n'etiti ciment hydration ngwaahịa Ọdịdị. Ebe ọ bụ na ngwaahịa hydration polymer na ciment na-etolitekarị usoro netwọkụ na-emekọrịta ihe, na cellulose ether gbanwere ciment.plasta dabere, usoro netwọk akụkụ atọ nke cellulose ether na usoro netwọk nke ciment hydration ngwaahịa na-ejikọta ọnụ, na cellulose ether molecules Adsorption na ciment hydration ngwaahịa ọnụ na-emepụta "mkpokọta superposition mmetụta", nke budata na-abawanye n'ozuzu viscosity nke ciment.plasta dabere; ebe ọ bụ na otu cellulose ether molecule nwere ike imekọ ọnụ na ọtụtụ cellulose ether molecules na ciment hydration ngwaahịa, Ya mere, na mmụba nke cellulose ether ọdịnaya, njupụta nke netwọk Ọdịdị na-abawanye karịa mmụba nke cellulose ether molekul, na viscosity nke ciment.plasta dabere na-abawanye na-aga n'ihu; na mgbakwunye, ngwa ngwa hydration nke ciment kwesịrị imeghachi akụkụ nke mmiri. , nke kwekọrọ na ịba ụba nke cellulose ether, nke bụkwa ihe kpatara mmụba dị ịrịba ama na viscosity nke ciment.plasta dabere.

Ebe ọ bụ na ether cellulose na cimentplasta dabere nwere "mkpokọta superposition mmetụta" na viscosity, n'okpuru otu cellulose ether ọdịnaya na mmiri-ciment ratio ọnọdụ, viscosity nke cellulose ether gbanwetụrụ simenti.plasta dabere nwere ọdịiche pụtara ìhè mgbe ntinye uche bụ 2% Ihe dị iche iche viscosity abụghị nnukwu, dịka ọmụmaatụ, viscosities nke P2 na E2 bụ 48000mPa.·s na 36700mPa·s karị na aqueous ngwọta na ịta nke 2%. S, ọdịiche ahụ abụghị ihe doro anya; viscosities nke E1 na E2 na 2% aqueous ngwọta bụ 12300mPa·S na 36700mPa·s otu, ihe dị iche bụ nnọọ nnukwu, ma viscosities nke ha gbanwetụrụ ciment mado bụ 9800mPa.·S na 12900mPa n'otu n'otu·S, a na-ebelata ihe dị iche iche nke ukwuu, yabụ mgbe ị na-ahọrọ cellulose ether na injinia, ọ dịghị mkpa ịchụso viscosity cellulose dị elu. Ọzọkwa, na ngwa injinia bara uru, ntinye nke cellulose ether metụtara mmiri na-adịkarị ala. Dịka ọmụmaatụ, na ngwa ngwa plasta nkịtị, mmiri-ciment ruru na-abụkarị ihe dịka 0.65, ọdịnaya nke cellulose ether bụ 0.2% ruo 0.6%. Ntụnye mmiri dị n'etiti 0.3% na 1%.

A pụkwara ịhụ ya site na ule nyocha na ụdị cellulose ethers dị iche iche nwere mmetụta dị iche iche na viscosity nke ciment.plasta dabere. Mgbe itinye uche bụ 1%, viscosities nke P2, E2 na H1 ụdị atọ nke cellulose ether aqueous ngwọta bụ 4990mPa.·s, 5070mPa·S na 5250mPa·S n'otu n'otu, viscosity nke ngwọta H1 bụ nke kachasị elu, ma viscosity nke P2, E2 na H1 atọ ụdị cellulose ether Viscosities nke ether-gbanwetụrụ slurries ciment bụ 13800mPa.·S, 12900mPa·S na 12700mPa·S n'otu n'otu, na viscosity nke ciment slurries H1 gbanwere bụ nke kacha ala. Nke a bụ n'ihi na ethers cellulose na-enwekarị mmetụta nke igbu oge hydration ciment. N'ime ụdị atọ nke cellulose ethers, HEC, HPMC na HEMC, HEC nwere ike kachasị ike igbu oge ciment hydration. Ya mere, na H1 gbanwere cimentplasta dabere, n'ihi hydration ciment dị nwayọọ, usoro netwọk nke ngwaahịa hydration ciment na-amalite nwayọọ nwayọọ, na viscosity bụ nke kasị ala.

2.2 Mmetụta nke ntụgharị ntụgharị

Site na mmetụta nke ntụgharị ntụgharị nke viscometer na viscosity nke ciment dị ọchaplasta dabere na cellulose ether gbanwetụrụ simentiplasta dabere, enwere ike ịhụ na ka ntụgharị ntụgharị na-abawanye, viscosity nke cellulose ether gbanwere ciment.plasta dabere na simenti dị ọchaplasta dabere na-ebelata n'ọkwa dị iche iche, ya bụ, ha niile nwere ihe onwunwe nke ịkpụ ntutu ma bụrụ nke mmiri mmiri pseudoplastic. Ọnụ ọgụgụ ntụgharị dị ntakịrị, nke ukwuu na-ebelata viscosity nke ciment niileplasta dabere na ntụgharị ntụgharị, ya bụ, ka o doro anya na pseudoplasticity nke cimentplasta dabere. Site na mmụba nke ntụgharị ntụgharị, ntụgharị nke viscosity na-ebelata nke cimentplasta dabere nke nta nke nta na-aghọ ire ụtọ, na pseudoplasticity na-ada mbà. Tụnyere ciment dị ọchaplasta dabere, pseudoplasticity nke cellulose ether gbanwere cimentplasta dabere adịghị ike, ya bụ, ntinye nke cellulose ether na-ebelata pseudoplasticity nke ciment.plasta dabere.

Site na mmetụta nke ntụgharị ntụgharị na viscosity nke cimentplasta dabere n'okpuru cellulose ether dị iche iche na viscosities, ọ nwere ike mara na cimentplasta dabere gbanwetụrụ na cellulose ethers dị iche iche nwere ike pseudoplastic dị iche iche, na obere viscosity nke cellulose ether, otú ahụ ka viscosity nke ciment gbanwere.plasta dabere. Ihe doro anya na pseudoplasticity nke cimentplasta dabere bụ; pseudoplasticity nke ciment gbanwetụrụplasta dabere enweghị ọdịiche doro anya na ụdị cellulose ethers dị iche iche nwere viscosities yiri ya. Site na P2, E2 na H1 ụdị cellulose ether atọ gbanwereplasta dabere na usoro onunu ogwu dị iche iche (0.1%, 0.3%, 0.6% na 0.9%), mmetụta nke ọsọ ntụgharị na viscosity nwere ike mara, P2, E2 na H1 ụdị atọ nke eriri cement slurries gbanwetụrụ na larịị ether nwere otu nsonaazụ ule. : mgbe ọnụọgụ cellulose ether dị iche, pseudoplasticity ha dị iche. Ka ọnụ ọgụgụ cellulose ether dị ntakịrị, otú ahụ ka pseudoplasticity nke simenti gbanwere.plasta dabere.

Mgbe simenti na-ejikọta na mmiri, akụkụ ciment nke dị n'elu na-eme ka mmiri dị ngwa ngwa, na ngwaahịa hydration (karịsịa CSH gel) na-etolite usoro agglomeration. Mgbe enwere ike ịkwanye ntụziaka na ngwọta, usoro agglomeration ga-emepe, nke mere na n'akụkụ ntụziaka nke ike na-agba ọsọ na-ebelata, si otú ahụ na-egosipụta ihe onwunwe nke ncha. Cellulose ether bụ ụdị macromolecule nwere usoro asymmetric. Mgbe ngwọta ahụ ka dị, mkpụrụ ndụ cellulose ether nwere ike inwe ụzọ dị iche iche. Mgbe enwere ike ịkwanye ntụzịaka na ngwọta, ogologo yinye nke molekul ga-atụgharị wee gaa. A na-ebelata ntụzịaka nke ike ịkwa ahụ, na-eme ka mbelata na-eguzogide mmiri na-asọ asọ, ma gosipụtakwa ihe onwunwe nke ncha. E jiri ya tụnyere ngwaahịa hydration ciment, molekul cellulose ether na-agbanwe ma nwee ikike nchekwa ụfọdụ maka ike ịkwa akwa. Ya mere, jiri ya tụnyere ciment dị ọchaplasta dabere, pseudoplasticity nke cellulose ether gbanwere cimentplasta dabere na-esiwanye ike, na, ka viscosity ma ọ bụ ọdịnaya nke cellulose ether na-abawanye, mmetụta ntinye nke cellulose ether molecules na ike shear na-apụta ìhè karị. Plasticity na-aghọ adịghị ike.

2.3 Mmetụta nke okpomọkụ

Site na mmetụta mgbanwe okpomọkụ (20°C, 27°C na 35°C) na viscosity nke cellulose ether gbanwetụrụ cimentplasta dabere, enwere ike ịhụ na mgbe ọdịnaya nke cellulose ether bụ 0.6%, ka okpomọkụ na-abawanye, ciment dị ọcha.plasta dabere na M1 Viscosity nke ciment a gbanwereplasta dabere mụbara, na viscosity nke cellulose ether ndị ọzọ gbanwere cimentplasta dabere belatara, ma mbelata ahụ adịghị nnukwu, na viscosity nke H1 gbanwere cimentplasta dabere belatara nke ukwuu. Dị ka simenti E2 gbanwereplasta dabere na-echegbu onwe ya, mgbe ọnụọgụ polyash bụ 0.6%, viscosity nke cimentplasta dabere na-ebelata na mmụba nke okpomọkụ, na mgbe polyash ruru 0.3%, viscosity nke ciment.plasta dabere na-abawanye na mmụba nke okpomọkụ.

N'ikwu okwu n'ozuzu, n'ihi mbelata nke ike mmekọrịta intermolecular, viscosity nke mmiri ahụ ga-ebelata na mmụba nke okpomọkụ, nke bụ maka ngwọta cellulose ether. Otú ọ dị, ka okpomọkụ na-ebili, na oge kọntaktị n'etiti ciment na mmiri na-abawanye, ọsọ nke ciment hydration ga-adịwanye ngwa ngwa, na ogo nke hydration ga-abawanye, ya mere viscosity nke ciment dị ọcha.plasta dabere ga-abawanye kama.

Na cellulose ether gbanwetụrụ cimentplasta dabere, cellulose ether ga-adsorbed n'elu ciment hydration ngwaahịa, si otú na-egbochi ciment hydration, ma dị iche iche na iche iche nke cellulose ethers nwere dị iche iche ikike igbochi ciment hydration, MC (dị ka M1) nwere ike na-adịghị ike igbochi ciment hydration. na ka okpomọkụ na-abawanye, ọnụ ọgụgụ hydration nke cimentplasta dabere ka na-agba ọsọ ngwa ngwa, ka okpomọkụ na-abawanye, viscosity Ọ na-adịkarị elu; HEC, HPMC na HEMC nwere ike igbochi ciment hydration nke ukwuu, ka okpomọkụ na-abawanye, ọnụ ọgụgụ hydration nke ciment.plasta dabere na-eji nwayọọ nwayọọ, ka okpomọkụ na-abawanye, HEC, HPMC na HEMC gbanwetụrụ simenti The viscosity nkeplasta dabere (0.6% polyash ratio) na-ebelata n'ozuzu, na n'ihi na ike nke HEC na-egbu oge ciment hydration dị ukwuu karịa nke HPMC na HEMC, mgbanwe nke cellulose ether na okpomọkụ mgbanwe (20).°C, 27°C na 35°C) Viscosity nke simenti H1 gbanwereplasta dabere belatara nke ukwuu site na mmụba nke okpomọkụ. Otú ọ dị, hydration ciment ka na-adị mgbe okpomọkụ dị elu, ya mere ogo nke mbelata nke cellulose ether gbanwere ciment.plasta dabere na mmụba nke okpomọkụ adịghị anya. Dị ka simenti E2 gbanwereplasta dabere na-echegbu onwe ya, mgbe usoro onunu ogwu dị elu (ọnụọgụ ash bụ 0.6%), mmetụta nke igbochi hydration ciment doro anya, na viscosity na-ebelata na mmụba nke okpomọkụ; mgbe usoro onunu ogwu dị ala (ọnụọgụ ash bụ 0.3%), mmetụta nke igbochi hydration ciment abụghị ihe doro anya, na viscosity na-abawanye na mmụba nke okpomọkụ.

3. Nkwubi okwu

(1) Site na mmụba na-aga n'ihu nke ọdịnaya ether cellulose, viscosity na viscosity na-abawanye ọnụego ciment.plasta dabere nọgide na-abawanye. Ọdịdị netwọk molekụla nke cellulose ether na usoro netwọkụ nke ngwaahịa hydration ciment na-ejikọta ọnụ, na hydration mbụ nke ciment na-abawanye ụba nke cellulose ether, nke mere na viscosity nke cellulose ether ngwọta na ciment.plasta dabere nwere "mkpokọta superposition mmetụta", ya bụ, cellulose ether The viscosity nke simenti gbanwetụrụplasta dabere dị ukwuu karịa nchikota nke viscosities ha dị iche iche. Tụnyere HPMC na HEMC gbanwere ciment slurries, HEC gbanwere ciment slurries nwere obere viscosity ule ụkpụrụ n'ihi nwayọọ nwayọọ mmepe hydration.

(2) Ma cellulose ether gbanwere cimentplasta dabere na simenti dị ọchaplasta dabere nwere ihe onwunwe nke shiee thinning ma ọ bụ pseudoplasticity; pseudoplasticity nke cellulose ether gbanwere cimentplasta dabere dị ala karịa nke simenti dị ọchaplasta dabere; na-ebelata ọnụego ntụgharị, ma ọ bụ cellulose Na-ebelata viscosity nke simenti ether emezigharịrịplasta dabere, ma ọ bụ na ọdịnaya nke cellulose ether dị ala, ka a na-apụta ìhè karị na pseudoplasticity nke cellulose ether-modified cementplasta dabere.

(3) Ka okpomọkụ na-aga n'ihu na-ebili, ọsọ na ogo nke hydration ciment na-abawanye, nke mere na viscosity nke ciment dị ọcha.plasta dabere nke nta nke nta na-abawanye. N'ihi ụdị dị iche iche na ọnụ ọgụgụ cellulose ethers nwere ikike dị iche iche iji gbochie hydration ciment, viscosity nke ciment na-agbanwe agbanwe na-agbanwe na okpomọkụ.