Ma cellulose Etere Viscosity Change pa pulasitala wa simenti

Kunenepa ndikofunikira kwambiri kusinthika kwa cellulose ether pazida zopangira simenti. Zotsatira za cellulose ether okhutira, kuthamanga kwa viscometer kasinthasintha ndi kutentha pakusintha kwama cellulose ether simenti yosinthidwa.pulasitala anaphunziridwa. Zotsatira zikuwonetsa kuti kukhuthala kwa simentipulasitala kumawonjezeka mosalekeza ndi kuchuluka kwa cellulose ether zili, ndi mamasukidwe akayendedwe a cellulose ether solution ndi simenti.pulasitala ali ndi "composite superposition effect"; pseudoplasticity ya cellulose ether simenti yosinthidwapulasitala ndi otsika kuposa simenti yeniyenipulasitala, ndi mamasukidwe akayendedwe Kutsitsa liwiro kasinthasintha wa chida, kapena kutsitsa mamasukidwe akayendedwe a cellulose etere kusinthidwa simenti.pulasitala, kapena kutsika kwa cellulose ether, m'pamenenso pseudoplasticity ya cellulose ether yosinthidwa simenti.pulasitala; Ndi ophatikizana zotsatira za hydration, ndi mamasukidwe akayendedwe a mapadi etere kusinthidwa simentipulasitala zidzawonjezeka kapena kuchepa. Mitundu yosiyanasiyana ya etha ya cellulose imakhala ndi kusintha kosiyana kwa kukhuthala kwa simenti yosinthidwapulasitala.

Mawu ofunikira: cellulose ether; simentipulasitala; mamasukidwe akayendedwe

0,Mawu Oyamba

Ma cellulose ethers nthawi zambiri amagwiritsidwa ntchito ngati zosungira madzi komanso zokometsera pazinthu zopangidwa ndi simenti. Malinga ndi olowa m'malo osiyanasiyana, ma cellulose ether omwe amagwiritsidwa ntchito muzinthu zopangidwa ndi simenti nthawi zambiri amaphatikiza methyl cellulose (MC), hydroxyethyl cellulose (HEC), hydroxyethyl methyl cellulose Ether (Hydroxyethyl methyl cellulose, HEMC) ndi hydroxypropyl methyl cellulose (Hydroxypropyl methylMC cellulose), mwa omwe HPMC ndi HEMC ndi omwe amagwiritsidwa ntchito kwambiri.

Kunenepa ndikofunikira kwambiri kusinthika kwa cellulose ether pazida zopangira simenti. Ma cellulose ether amatha kupatsa matope onyezimira ndi mamasukidwe abwino kwambiri, kukulitsa luso lolumikizana pakati pa matope onyowa ndi gawo loyambira, ndikuwongolera magwiridwe antchito a matope a anti-sag. Itha kuonjezeranso mphamvu ya homogeneity ndi anti-kubalalitsidwa kwa zinthu zatsopano zosakanikirana za simenti, ndikuletsa kutayika, tsankho komanso kutulutsa magazi kwamatope ndi konkriti.

Kukhuthala kwa cellulose ether pazida zopangira simenti zitha kuyesedwa mochulukira ndi mtundu wa rheological wa zida zopangira simenti. Zida zopangira simenti nthawi zambiri zimatengedwa ngati Bingham fluid, ndiko kuti, pamene kumeta ubweya wothira kupanikizika r kumakhala kochepa kusiyana ndi zokolola r0, zinthuzo zimakhalabe mu mawonekedwe ake oyambirira ndipo sizikuyenda; pamene kumeta ubweya wa ubweya kupitirira kupanikizika kwa zokolola r0, chinthucho chimalowa mkati mwake, ndipo kumeta ubweya wa ubweya Kupsyinjika r kumakhala ndi mgwirizano wofanana ndi y, ndiko kuti, r = r0 + f.·y, pomwe f ndi kukhuthala kwa pulasitiki. Ma cellulose ethers nthawi zambiri amawonjezera kupsinjika kwa zokolola komanso kukhuthala kwa pulasitiki kwa zinthu zopangidwa ndi simenti, komabe, kutsika kwa mlingo kumabweretsa kupsinjika kwa zokolola komanso kukhuthala kwa pulasitiki, makamaka chifukwa cha mphamvu ya mpweya wa cellulose ethers. Kafukufuku wa Patural akuwonetsa kuti kulemera kwa maselo a cellulose ether kumawonjezeka, kupsinjika kwa zokolola za simenti.pulasitala amachepetsa, ndipo kugwirizana kumawonjezeka.

Kukhuthala kwa simentipulasitala ndi index yofunikira yowunika momwe cellulose ether imakulirira pazinthu zopangidwa ndi simenti. Zolemba zina zafufuza lamulo losintha mamasukidwe a cellulose ether solution, komabe pali kusowa kwa kafukufuku wofunikira pa zotsatira za cellulose ether pakusintha kwa viscosity kwa simenti.pulasitala. Pa nthawi yomweyi, molingana ndi mitundu yosiyanasiyana ya olowa m'malo, pali mitundu yambiri ya ma cellulose ethers. Zotsatira zamitundu yosiyanasiyana ndi ma viscosities a cellulose ethers pakusintha kwa simentipulasitala mamasukidwe akayendedwe amakhalanso nkhani yokhudzidwa kwambiri pakugwiritsa ntchito ma cellulose ethers. Ntchitoyi imagwiritsa ntchito viscometer yozungulira kuti iphunzire kusintha kwa viscosity ya cellulose etere kusinthidwa simenti slurries amitundu yosiyanasiyana ndi mamasukidwe akayendedwe pansi osiyana poly-phulusa ratios, liwiro kasinthasintha ndi kutentha.

1. Yesani

1.1 Zopangira

(1) Ma cellulose ether. Mitundu isanu ndi umodzi ya etha ya cellulose yomwe imagwiritsidwa ntchito kwambiri m'dziko langa idasankhidwa, kuphatikiza mtundu umodzi wa MC, mtundu umodzi wa HEC, mitundu iwiri ya HPMC ndi mitundu iwiri ya HEMC. zosiyana. The mamasukidwe akayendedwe a cellulose ether anayesedwa ndi NDJ-1B rotational viscometer (Shanghai Changji Company), ndende ya yankho mayeso anali 1.0% kapena 2.0%, kutentha anali 20°C, ndipo liwiro lozungulira linali 12r / min.

(2) Simenti. Simenti wamba ya Portland yopangidwa ndi Wuhan Huaxin Cement Co., Ltd. ili ndi mawonekedwe a P.·O 42.5 (GB 175-2007).

1.2 Viscosity kuyeza njira ya cellulose ether solution

Tengani chitsanzo cha cellulose ether chamtundu womwe watchulidwa ndikuwonjezera ku beaker yamagalasi 250mL, kenaka yikani 250g madzi otentha pafupifupi 90.°C; kusonkhezera mokwanira ndi galasi ndodo kuti mapadi etere kupanga yunifolomu kubalalitsidwa dongosolo mu madzi otentha, ndipo nthawi yomweyo kuika beaker Kuziziritsa mu mlengalenga. Pamene yankho likuyamba kutulutsa mamasukidwe akayendedwe ndipo silidzabweranso, siyani kuyambitsa nthawi yomweyo; pamene yankho litakhazikika mumlengalenga mpaka mtundu uli yunifolomu, ikani beaker mu kutentha kosalekeza kwa madzi osambira, ndikusunga kutentha kwa kutentha komwe kumatchulidwa. Cholakwika ndi± 0.1°C; pambuyo pa 2h (kuwerengedwa kuchokera ku nthawi yolumikizana ndi cellulose ether ndi madzi otentha), yesani kutentha kwapakati pa yankho ndi thermometer. Production) rotor anaikapo yankho la kuya kwapadera, atayima kwa 5min, kuyeza mamasukidwe ake akayendedwe.

1.3 Muyezo wa viscosity wa cellulose ether simenti yosinthidwapulasitala

Kuyesako kusanachitike, sungani zopangira zonse pa kutentha komwe kwatchulidwa, kuyeza kuchuluka kwa cellulose ether ndi simenti, sakanizani bwino, ndikuwonjezera madzi apampopi pa kutentha komwe kwatchulidwa mu beaker ya galasi ya 250mL yokhala ndi simenti yamadzi ya 0,65; Kenako onjezerani ufa wouma mu beaker ndikudikirira kwa mphindi zitatu Sakanizani bwino ndi ndodo yagalasi nthawi 300, ikani rotor ya viscometer yozungulira (mtundu wa NDJ-1B, wopangidwa ndi Shanghai Changji Geological Instrument Co., Ltd.) yankho lakuya kwapadera, ndi kuyeza mamasukidwe akayendedwe ake atayima kwa mphindi 2. Pofuna kupewa chikoka cha simenti hydration kutentha pa mamasukidwe akayendedwe mayeso a simentipulasitala momwe ndingathere, kukhuthala kwa cellulose ether kusinthidwa simentipulasitala iyenera kuyesedwa pamene simenti ikukumana ndi madzi kwa mphindi zisanu.

2. Zotsatira ndi kusanthula

2.1 Zotsatira za cellulose ether

Kuchuluka kwa cellulose ether pano kukutanthauza kuchuluka kwa cellulose ether ku simenti, ndiko kuti, chiŵerengero cha polyash. Kuchokera ku chikoka cha P2, E2 ndi H1 mitundu itatu ya ma cellulose ethers pakusintha makulidwe a simenti.pulasitala pa Mlingo wosiyanasiyana (0.1%, 0,3%, 0.6% ndi 0.9%), zitha kuwoneka kuti kuwonjezera pa cellulose ether, kukhuthala kwa simentipulasitala Viscosity imawonjezeka; kuchuluka kwa cellulose ether kumawonjezeka, kukhuthala kwa simentipulasitala kumawonjezeka mosalekeza, ndi osiyanasiyana kuwonjezeka mamasukidwe akayendedwe a simentipulasitala imakhalanso yokulirapo.

Pamene chiŵerengero cha madzi-simenti ndi 0,65 ndi cellulose ether zili ndi 0,6%, poganizira madzi omwe amagwiritsidwa ntchito ndi hydration yoyamba ya simenti, kuchuluka kwa cellulose ether wachibale ndi madzi ndi pafupifupi 1%. Pamene ndende ndi 1%, njira zamadzimadzi za P2, E2 ndi H1 The viscosities ndi 4990mPa.·S, 5070 mPa·S ndi 5250mPa·s motero; pamene chiŵerengero cha madzi-simenti ndi 0,65, kukhuthala kwa simenti koyerapulasitala ndi 836 mpa·S. Komabe, ma viscosities a P2, E2 ndi H1 atatu a cellulose etha osinthidwa simenti ndi 13800mPa.·S, 12900mPa·S ndi 12700mPa·s motero. Mwachiwonekere, kukhuthala kwa cellulose ether kusinthidwa simentipulasitala si mamasukidwe akayendedwe a cellulose ether solution ndi Kuwonjezera kosavuta kwa mamasukidwe akayendedwe a simenti yoyera.pulasitala ndi wamkulu kwambiri kuposa kuchuluka kwa ma viscosities awiri, ndiko kuti, kukhuthala kwa ma cellulose ether solution ndi mamasukidwe a simenti.pulasitala kukhala ndi "composite superposition effect". Kukhuthala kwa ma cellulose ether solution kumachokera ku hydrophilicity yamphamvu yamagulu a hydroxyl ndi zomangira za etere mu mamolekyu a cellulose etha ndi mawonekedwe atatu amtundu wa maukonde opangidwa ndi mamolekyu a cellulose ether mu yankho; kukhuthala kwa simenti yoyerapulasitala amachokera ku maukonde opangidwa pakati pa simenti hydration mankhwala kapangidwe. Popeza polima ndi simenti hydration mankhwala nthawi zambiri kupanga interpenetrating maukonde dongosolo, mu mapadi etere kusinthidwa simenti.pulasitala, mawonekedwe atatu amtundu wa maukonde a cellulose ether ndi maukonde a zinthu za simenti ya simenti amalumikizana, ndipo ma molekyulu a cellulose ether Adsorption ndi zinthu za simenti ya simenti palimodzi amapanga "composite superposition effect", yomwe imawonjezera kukhuthala konse kwa simenti.pulasitala; popeza molekyulu imodzi ya cellulose etere imatha kuluka ndi mamolekyu angapo a cellulose ether ndi zinthu za simenti ya simenti, chifukwa chake, pakuwonjezeka kwa cellulose ether okhutira, kachulukidwe kapangidwe ka maukonde kumawonjezera kuposa kuchuluka kwa ma cellulose ether mamolekyulu, ndi kukhuthala kwa simenti.pulasitala kumawonjezeka mosalekeza; Komanso, hydration mofulumira simenti ayenera kuchitapo mbali ya madzi. , zomwe zili zofanana ndi kuonjezera kuchuluka kwa cellulose ether, zomwe ndi chifukwa cha kuwonjezeka kwakukulu kwa kukhuthala kwa simenti.pulasitala.

Popeza mapadi ether ndi simentipulasitala kukhala ndi "composite superposition effect" mu mamasukidwe akayendedwe, pansi pa zomwe zili mu cellulose ether ndi mikhalidwe ya simenti yamadzi, kukhuthala kwa cellulose ether simenti yosinthidwa.pulasitala ndi kusiyana koonekeratu pamene ndende ndi 2% Kusiyana mamasukidwe akayendedwe si kwakukulu, mwachitsanzo, ma viscosities a P2 ndi E2 ndi 48000mPa·s ndi 36700mPa·s motero mu njira yamadzimadzi yokhala ndi ndende ya 2%. S, kusiyana si koonekeratu; ma viscosities a E1 ndi E2 mu 2% yankho lamadzi ndi 12300mPa·S ndi 36700mPa·s motero, kusiyana kwake ndi kwakukulu kwambiri, koma ma viscosities a simenti yawo yosinthidwa ndi 9800mPa.·S ndi 12900mPa motsatana·S, kusiyana kwachepetsedwa kwambiri, kotero posankha cellulose ether mu uinjiniya, sikoyenera kutsata kukhuthala kwambiri kwa cellulose ether. Komanso, mu ntchito za uinjiniya, kuchuluka kwa cellulose ether pokhudzana ndi madzi nthawi zambiri kumakhala kotsika. Mwachitsanzo, mumatope opaka pulasitala, chiŵerengero cha simenti yamadzi nthawi zambiri chimakhala pafupifupi 0,65, ndipo zomwe zili mu cellulose ether ndi 0,2% mpaka 0,6%. Kuchuluka kwa madzi kuli pakati pa 0.3% ndi 1%.

Zitha kuwonekanso kuchokera ku zotsatira zoyesa kuti mitundu yosiyanasiyana ya ma cellulose ethers imakhala ndi zotsatira zosiyana pa kukhuthala kwa simenti.pulasitala. Pamene ndende ndi 1%, ma viscosities a P2, E2 ndi H1 mitundu itatu ya mayankho amadzimadzi a cellulose etha ndi 4990mPa.·s, 5070 mPa·S ndi 5250mPa·S motero, mamasukidwe akayendedwe a H1 yankho ndi apamwamba kwambiri, koma mamasukidwe akayendedwe a P2, E2 ndi H1 mitundu itatu ya mapadi etero The viscosities wa etha-zosinthidwa slurries simenti anali 13800mPa.·S, 12900mPa·S ndi 12700mPa·S motero, ndi mamasukidwe akayendedwe a H1 kusinthidwa simenti slurries anali otsika. Izi zili choncho chifukwa ma cellulose ethers nthawi zambiri amakhala ndi zotsatira zochedwetsa kuthira kwa simenti. Pakati pa mitundu itatu ya ma cellulose ethers, HEC, HPMC ndi HEMC, HEC ili ndi mphamvu yamphamvu kwambiri yochepetsera simenti ya simenti. Choncho, mu H1 kusinthidwa simentipulasitala, chifukwa cha pang'onopang'ono simenti hydration, maukonde dongosolo simenti hydration mankhwala akukula pang'onopang'ono, ndi mamasukidwe akayendedwe ndi otsikitsitsa.

2.2 Zotsatira za kasinthasintha

Kuchokera ku chikoka cha kasinthasintha liwiro viscometer pa mamasukidwe akayendedwe a simenti koyerapulasitala ndi cellulose ether simenti yosinthidwapulasitala, zikhoza kuwoneka kuti pamene liwiro lozungulira likuwonjezeka, kukhuthala kwa cellulose ether simenti yosinthidwa.pulasitala ndi simenti yoyerapulasitala amachepetsa ku madigiri osiyanasiyana , ndiko kuti, onse ali ndi katundu wa kumeta ubweya wa ubweya ndipo ndi a pseudoplastic fluid. Zing'onozing'ono zozungulira, zimachepetsera kukhuthala kwa simenti yonsepulasitala ndi kuchuluka kwa kasinthasintha, ndiko kuti, m'pamenenso pseudoplasticity ya simenti imawonekerapulasitala. Ndi kuchuluka kwa kasinthasintha, kupindika kwa viscosity kutsika kwa simentipulasitala pang'onopang'ono imakhala yosalala, ndipo pseudoplasticity imafooka. Poyerekeza ndi simenti yoyerapulasitala, pseudoplasticity ya cellulose ether yosinthidwa simentipulasitala ndi chofooka, ndiko kuti, kuphatikizika kwa cellulose ether kumachepetsa pseudoplasticity ya simenti.pulasitala.

Kuchokera ku chikoka cha kasinthasintha liwiro pa mamasukidwe akayendedwe a simentipulasitala pansi pamitundu yosiyanasiyana ya cellulose ether ndi viscosities, zitha kudziwika kuti simentipulasitala kusinthidwa ndi ma cellulose ethers osiyanasiyana amakhala ndi mphamvu yosiyana ya pseudoplastic, ndipo kucheperako kukhuthala kwa cellulose ether, kumapangitsanso kukhuthala kwa simenti yosinthidwa.pulasitala. Chodziwika kwambiri ndi pseudoplasticity ya simentipulasitala ndi; pseudoplasticity ya simenti yosinthidwapulasitala alibe kusiyana koonekeratu ndi mitundu yosiyanasiyana ya ma cellulose ether okhala ndi ma viscosities ofanana. Kuchokera ku P2, E2 ndi H1 mitundu itatu ya cellulose ether yosinthidwa simentipulasitala mu mlingo wosiyana (0.1%, 0.3%, 0.6% ndi 0.9%), chikoka cha kasinthasintha liwiro pa mamasukidwe akayendedwe akhoza kudziwika, P2, E2 ndi H1 mitundu itatu ya CHIKWANGWANI Simenti slurries kusinthidwa ndi plain ether ali ndi zotsatira zofanana mayeso : pamene kuchuluka kwa cellulose ether ndi kosiyana, pseudoplasticity yawo ndi yosiyana. Kuchepa kwa cellulose ether, kumapangitsanso pseudoplasticity ya simenti yosinthidwa.pulasitala.

Pambuyo simenti ndi kukhudzana ndi madzi, ndi particles simenti pamwamba mofulumira hydrated, ndi mankhwala hydration (makamaka CSH gel osakaniza) kupanga agglomeration dongosolo. Pamene pali mphamvu yometa ubweya wowongolera mu yankho, dongosolo la agglomeration lidzatsegulidwa, kotero kuti motsatira njira ya kukameta ubweya wa ubweya Kukana kwamayendedwe kumachepetsedwa, potero kuwonetsa katundu wa kumeta ubweya wa ubweya. Cellulose ether ndi mtundu wa macromolecule wokhala ndi mawonekedwe asymmetric. Njira ikadalipo, mamolekyu a cellulose ether amatha kukhala ndi mawonekedwe osiyanasiyana. Pamene pali mphamvu yometa ubweya wolunjika mu yankho, unyolo wautali wa molekyulu udzatembenuka ndikupita. Kuwongolera kwa mphamvu yakumeta ubweya kumachepetsedwa, zomwe zimapangitsa kuchepa kwa kukana kwakuyenda, komanso kuwonetsa katundu wa kumeta ubweya wa ubweya. Poyerekeza ndi zinthu za simenti za hydration, ma cellulose ether mamolekyu amatha kusinthasintha ndipo amakhala ndi mphamvu yotchinga ya mphamvu yakumeta ubweya. Choncho, poyerekeza ndi koyera simentipulasitala, pseudoplasticity ya cellulose ether yosinthidwa simentipulasitala ndi ofooka, ndipo, pamene mamasukidwe akayendedwe kapena zomwe zili mu cellulose ether zikuchulukirachulukira, kubisalira kwa ma cellulose ether mamolekyu pa mphamvu yakumeta ubweya kumawonekera kwambiri. Pulasitiki imakhala yofooka.

2.3 Mphamvu ya kutentha

Chifukwa cha kusintha kwa kutentha (20°c, 27°c ndi 35°C) pa mamasukidwe akayendedwe a mapalo etere kusinthidwa simentipulasitala, zikhoza kuwoneka kuti pamene zomwe zili mu cellulose ether ndi 0.6%, pamene kutentha kumawonjezeka, simenti yabwino.pulasitala ndi M1 Kukhuthala kwa simenti yosinthidwapulasitala kuchuluka, ndi mamasukidwe akayendedwe ena mapalo etere kusinthidwa simentipulasitala utachepa, koma kuchepa sanali lalikulu, ndi mamasukidwe akayendedwe a H1 kusinthidwa simentipulasitala zachepa kwambiri. Kufikira E2 yosinthidwa simentipulasitala ndi nkhawa, pamene chiŵerengero cha polyash ndi 0,6%, kukhuthala kwa simentipulasitala amachepetsa ndi kuwonjezeka kwa kutentha, ndipo pamene polyash chiŵerengero ndi 0.3%, mamasukidwe akayendedwe a simenti.pulasitala kumawonjezeka ndi kuwonjezeka kwa kutentha.

Nthawi zambiri, chifukwa cha kuchepa kwa mphamvu yolumikizana ndi ma intermolecular, kukhuthala kwamadzimadzi kumachepa ndi kuwonjezeka kwa kutentha, zomwe zimatengera yankho la cellulose ether. Komabe, pamene kutentha kumakwera, ndipo nthawi yolumikizana pakati pa simenti ndi madzi ikuwonjezeka, kuthamanga kwa simenti kumathamanga kwambiri, ndipo mlingo wa hydration udzawonjezeka, kotero kukhuthala kwa simenti koyera.pulasitala adzawonjezeka m'malo mwake.

Mu cellulose ether simenti yosinthidwapulasitala, mapadi efa adzakhala adsorbed pamwamba mankhwala simenti hydration, potero kuletsa simenti hydration, koma mitundu yosiyanasiyana ndi kuchuluka kwa mapadi ethers ndi luso loletsa kuletsa simenti hydration, MC (monga M1) ali ndi mphamvu ofooka ziletsa simenti hydration, ndipo pamene kutentha kumawonjezeka, mlingo wa hydration wa simentipulasitala akadali mofulumira, kotero kutentha kumawonjezeka, kukhuthala kumawonjezeka; HEC, HPMC ndi HEMC zitha kuletsa kwambiri simenti hydration, pamene kutentha kumawonjezeka, ndi hydration mlingo wa simenti.pulasitala ndi pang'onopang'ono, kotero kutentha kumawonjezeka, HEC, HPMC ndi HEMC kusinthidwa simenti The mamasukidwe akayendedwe apulasitala (0.6% polyash chiŵerengero) kawirikawiri yafupika, ndipo chifukwa mphamvu HEC kuchedwetsa simenti hydration ndi wamkulu kuposa HPMC ndi HEMC, kusintha mapadi ether mu kutentha kusintha (20°c, 27°c ndi 35°C) Kukhuthala kwa simenti ya H1 yosinthidwapulasitala kutsika kwambiri ndi kuwonjezeka kwa kutentha. Komabe, simenti hydration ikadalipo pamene kutentha ndi apamwamba, kotero mlingo wa kuchepetsa mapadi etere kusinthidwa simenti.pulasitala ndi kuwonjezeka kutentha si zoonekeratu. Kufikira E2 yosinthidwa simentipulasitala nkhawa, pamene mlingo ndi mkulu (chiŵerengero phulusa ndi 0,6%), zotsatira zoletsa simenti hydration n'zoonekeratu, ndi mamasukidwe akayendedwe amachepetsa ndi kuwonjezeka kutentha; pamene mlingo uli wochepa (chiŵerengero cha phulusa ndi 0,3%), zotsatira za kulepheretsa simenti hydration sizidziwikiratu, ndipo mamasukidwe akayendedwe amawonjezeka ndi kuwonjezeka kwa kutentha.

3. Mapeto

(1) Ndi kuchuluka kosalekeza kwa cellulose ether, kukhuthala ndi mamasukidwe akayendedwe kumawonjezera simenti.pulasitala pitirizani kuwonjezeka. The maselo maukonde dongosolo mapadi efa ndi dongosolo maukonde wa mankhwala simenti hydration ndi zopiringizika, ndi hydration koyamba simenti mwachindunji kumawonjezera ndende ya mapadi etere, kuti mamasukidwe akayendedwe a mapadi etero njira ndi simenti.pulasitala ali ndi "composite superposition effect", ndiko kuti, cellulose ether The viscosity ya simenti yosinthidwapulasitala ndi zazikulu kuposa kuchuluka kwa ma viscosities awo. Poyerekeza ndi HPMC ndi HEMC kusinthidwa simenti slurries, HEC kusinthidwa simenti slurries ali ndi otsika kukhuthala kukhuthala kuyesedwa kwamtengo chifukwa cha pang'onopang'ono hydration chitukuko.

(2) Onse a cellulose ether osinthidwa simentipulasitala ndi simenti yoyerapulasitala kukhala ndi katundu wometa ubweya wa ubweya kapena pseudoplasticity; pseudoplasticity ya cellulose ether simenti yosinthidwapulasitala ndi otsika kuposa simenti yeniyenipulasitala; kutsika kwa kasinthasintha, kapena cellulose Kuchepetsa kukhuthala kwa simenti yosinthidwa etherpulasitala, kapena kutsika kwa cellulose ether, m'pamenenso pseudoplasticity ya cellulose ether-modified simenti imawonekera.pulasitala.

(3) Pamene kutentha kukupitiriza kukwera, liwiro ndi digiri ya simenti hydration kuwonjezeka, kotero kuti mamasukidwe akayendedwe a simenti koyera.pulasitala pang'onopang'ono kumawonjezeka. Chifukwa cha mitundu yosiyanasiyana komanso kuchuluka kwa ma cellulose ethers ali ndi kuthekera kosiyanasiyana kuletsa simenti ya hydration, kukhuthala kwa phala losinthidwa simenti kumasiyanasiyana ndi kutentha.