I-Cellulose ether sisongezelelo esiqhelekileyo kwizixhobo zokwakha, esisetyenziselwa ukuphucula ukusebenza kolwakhiwo kunye neempawu zoomatshini ze-mortar. Ubunzima bungenye yeempawu ezibalulekileyo ze-cellulose ether, ebhekisa kulwabiwo lwayo lobungakanani bezinto ezincinci.
Iimpawu kunye nokusetyenziswa kwe-cellulose ether
I-Cellulose ether ibandakanya ikakhulu i-hydroxypropyl methylcellulose (HPMC), i-hydroxyethyl cellulose (HEC), njl. Imisebenzi yabo ephambili ekwakheni i-mortar iquka:
Ukugcinwa kwamanzi: ngokunciphisa umphunga wamanzi, ukwandisa ixesha lokufuma kwesamente, kunye nokuphucula amandla e-mortar.
Ukuqina: Ukwandisa ukutyeba kwesamente kunye nokuphucula ukusebenza kolwakhiwo.
Ukuphucula ukumelana nokuqhekeka: Ipropati yokugcina amanzi ye-cellulose ether inceda ukulawula ukushwabana kwesamente, ngaloo ndlela inciphisa ukwenzeka kokuqhekeka kwi-mortar.
Ubunono be-cellulose ether buchaphazela ukusasazeka kwayo, ukunyibilika kwayo kunye nokusebenza kakuhle kwi-mortar, ngaloo ndlela kuchaphazela ukusebenza kwayo iyonke.
Isiphumo sokuqina kwe-cellulose ether kumandla e-mortar singahlalutywa kwezi nkalo zilandelayo:
1. Izinga lokunyibilika kunye nokusasazeka
Izinga lokunyibilika kwe-cellulose ether emanzini linxulumene ngokusondeleyo nokuqina kwayo. Amasuntswana e-cellulose ether anobuncinci obuphezulu anyibilika lula emanzini, ngaloo ndlela enze ukusasazeka okufanayo ngokukhawuleza. Olu lwabiwo olufanayo lunokuqinisekisa ukugcinwa kwamanzi okuzinzileyo kunye nokuqina kwenkqubo yonke ye-mortar, lukhuthaze inkqubela efanayo yempendulo ye-samente hydration, kwaye luphucule amandla okuqala e-mortar.
2. Umthamo wokugcina amanzi
Ubunzima be-cellulose ether buchaphazela ukusebenza kwayo kokugcinwa kwamanzi. Amasuntswana e-cellulose ether anobunzima obuphezulu anika indawo enkulu yomphezulu othile, ngaloo ndlela enza izakhiwo ezincinci ezigcina amanzi kwi-mortar. Ezi micropores zinokugcina amanzi ngempumelelo, zandise ixesha lokuphendula nge-samente hydration, zikhuthaze ukwakheka kweemveliso ze-hydration, kwaye ngaloo ndlela zonyuse amandla e-mortar.
3. Ukudibanisa ujongano
Ngenxa yokusasazeka kwazo kakuhle, amasuntswana e-cellulose ether anobunono obuphezulu anokwenza umaleko wokubopha ofanayo phakathi kodaka kunye ne-aggregate, kwaye aphucule ukudibana kodaka. Esi siphumo sinceda udaka lugcine i-plasticity entle kwinqanaba lokuqala, lunciphise ukwenzeka kokuqhekeka kokuncipha, kwaye ngaloo ndlela luphucule amandla apheleleyo.
4. Ukukhuthazwa kokufunxwa kwesamente
Ngexesha lenkqubo yokufunxa isamente, ukwenziwa kweemveliso zokufunxa kufuna amanzi athile. I-cellulose ether enobunono obuphezulu inokwenza iimeko zokufunxa ezifanayo kwi-mortar, iphephe ingxaki yokungoneli okanye ukufuma okugqithisileyo kwendawo, iqinisekise inkqubela epheleleyo yempendulo yokufunxa, ngaloo ndlela iphucule amandla e-mortar.
Uphononongo lovavanyo kunye nohlalutyo lweziphumo
Ukuze kuqinisekiswe impembelelo yokuqina kwe-cellulose ether kumandla e-mortar, ezinye izifundo zovavanyo zilungise ukuqina kwe-cellulose ether zaza zavavanya iipropati zayo zoomatshini ze-mortar phantsi kwemilinganiselo eyahlukeneyo.
Uyilo lovavanyo
Olu vavanyo ludla ngokusebenzisa iisampulu ze-cellulose ether ze-fineness ezahlukeneyo kwaye zongezwe kwi-samente mortar ngokulandelanayo. Ngokulawula ezinye izinto eziguquguqukayo (ezifana nomlinganiselo wamanzi-wesamente, umlinganiselo we-aggregate, ixesha lokuxuba, njl.njl.), kuphela umlinganiselo we-cellulose ether otshintshwayo. Emva koko kwenziwa uthotho lweemvavanyo zamandla, kubandakanya amandla oxinzelelo kunye namandla okuguquguquka.
Iziphumo zovavanyo zihlala zibonisa:
Iisampulu ze-cellulose ether ezinobunono obuphezulu zinokuphucula kakhulu amandla okuxinwa kunye namandla okugoba kwesamente kwinqanaba lokuqala (njengeentsuku ezi-3 kunye neentsuku ezi-7).
Njengoko ixesha lokunyanga liqhubeka (njengeentsuku ezingama-28), i-cellulose ether enobunono obuphezulu inokuqhubeka nokubonelela ngokugcinwa kwamanzi okuhle kunye nokubopha, ibonise ukukhula okuzinzileyo kwamandla.
Umzekelo, kuvavanyo, amandla okucinezela e-cellulose ethers anobunono obuyi-80 mesh, i-100 mesh, kunye ne-120 mesh kwiintsuku ezingama-28 yayiyi-25 MPa, i-28 MPa, kunye ne-30 MPa, ngokulandelelana. Oku kubonisa ukuba okukhona ubunono be-cellulose ether buphezulu, kokukhona amandla okucinezela e-mortar aba maninzi.
Ukusetyenziswa okusebenzayo kokulungiswa kobunono be-cellulose ether
1. Lungisa ngokwemeko yokwakha
Xa kusakhiwa kwindawo eyomileyo okanye phantsi kweemeko zobushushu obuphezulu, i-cellulose ether enobunono obuphezulu inokukhethwa ukuphucula ukugcinwa kwamanzi kwi-mortar nokunciphisa ukulahleka kwamandla okubangelwa kukufuma kwamanzi.
2. Sebenzisa nezinye izongezo
I-cellulose ether enobunono obuphezulu ingasetyenziswa kunye nezinye izongezo (ezifana nezinciphisi zamanzi kunye neearhente zokungenisa umoya) ukuphucula ukusebenza kwe-mortar. Umzekelo, ukusetyenziswa kwe-water reducers kunokunciphisa umlinganiselo wamanzi nesamente kwaye kwandise uxinano lwe-mortar, ngelixa i-cellulose ether inika ukugcinwa kwamanzi kunye nemiphumo yokuqinisa. Ukudibana kwezi zimbini kunokuphucula kakhulu amandla e-mortar.
3. Ukuphucula inkqubo yokwakha
Ngexesha lenkqubo yokwakha, kuyimfuneko ukuqinisekisa ukuba i-cellulose ether inyibilikisiwe ngokupheleleyo kwaye isasazekile. Oku kunokufezekiswa ngokwandisa ixesha lokuxuba okanye ukusebenzisa izixhobo ezifanelekileyo zokuxuba ukuqinisekisa ukuba inzuzo yobuchule be-cellulose ether isetyenziswa ngokupheleleyo.
Ukuqina kwe-cellulose ether kunempembelelo ebalulekileyo kumandla e-mortar. I-cellulose ether enokuqina okuphezulu ingadlala indima engcono yokugcina amanzi, ukuqina nokuphucula ukubopha kwe-interface, kwaye iphucule amandla okuqala kunye neepropati zoomatshini ze-mortar ezihlala ixesha elide. Kwizicelo ezisebenzayo, ukuqina kwe-cellulose ether kufuneka kukhethwe ngokufanelekileyo kwaye kusetyenziswe ngokweemeko ezithile zokwakha kunye neemfuno zokuphucula ukusebenza kwe-mortar kunye nokuphucula umgangatho weprojekthi.
Ixesha leposi: Juni-24-2024