Izinto ezichaphazela i-Cellulose Ether kwi-Cement Mortar

I-cellulose ethers idlala indima ebalulekileyo ekuphembeleleni iipropati zodaka lwesamente, ezichaphazela ukusebenza kwayo, ukunamathela, ukugcinwa kwamanzi, kunye namandla omatshini. Izinto ezininzi zinokuchaphazela ukusebenza kwe-cellulose ethers kudaka lwesamente:

1. Ukubunjwa kweMichiza: Ukwakhiwa kweekhemikhali ze-cellulose ethers, kubandakanywa iqondo lokutshintshwa (DS) kunye nohlobo lwamaqela asebenzayo (umzekelo, i-methyl, i-ethyl, i-hydroxypropyl), ichaphazela kakhulu ukuziphatha kwabo kwi-cement mortar. I-DS ephezulu kunye neentlobo ezithile zamaqela asebenzayo zinokuphucula ukugcinwa kwamanzi, ukunamathela, kunye neempawu zokuqina.
2. Ubungakanani beNgxelo kunye noSasazo: Ubungakanani beengqungquthela kunye nokusabalalisa i-cellulose ethers kunokuchaphazela ukuchithwa kwabo kunye nokusebenzisana kunye neengqungquthela zesamente. Iinqununu ezintle ezinokusabalalisa okufanayo zivame ukusabalalisa ngokufanelekileyo kwi-matrix yodaka, ekhokelela ekuphuculeni ukugcinwa kwamanzi kunye nokusebenza.
3. Umthamo: Umthamo we-cellulose ethers kwimixube yodaka lwesamente ichaphazela ngokuthe ngqo ukusebenza kwabo. Amanqanaba edosi afanelekileyo amiselwa ngokusekelwe kwizinto ezifana nokusebenza okunqwenelekayo, iimfuno zokugcina amanzi, kunye namandla omatshini. Ukugqithiswa kwedosi kunokukhokelela ekutyebeni okugqithisileyo okanye ekubambezelekeni kwexesha lokumisela.
4. Inkqubo yokuxuba: Inkqubo yokuxuba, kubandakanywa ixesha lokuxuba, isantya sokuxuba, kunye nomyalelo wokongezwa kwezithako, kunokuchaphazela ukusabalalisa kunye ne-hydration ye-cellulose ethers kwi-sement mortar. Ukuxuba okufanelekileyo kuqinisekisa ukuhanjiswa okufanayo kwe-cellulose ethers kulo lonke i-matrix yodaka, ukuphucula ukusebenza kwabo ekuphuculeni ukusebenza kunye nokubambelela.
5. Ukubunjwa kwe-Cement: Uhlobo kunye nokubunjwa kwe-cement esetyenziswe kwi-formulation ye-mortar inokuchaphazela ukuhambelana nokusebenza kwe-cellulose ethers. Iindidi ezahlukeneyo zesamente (umzekelo, isamente yasePortland, isamente edityanisiweyo) inokubonisa iindlela ezahlukeneyo zokusebenzisana kunye ne-cellulose ethers, iipropati ezineempembelelo ezifana nokubeka ixesha, uphuhliso lwamandla kunye nokuqina.
6. Iipropati ezidityanisiweyo: Iipropati ze-aggregates (umzekelo, ubungakanani bamasuntswana, imilo, ukuthungwa komphezulu) zinokuphembelela ukusebenza kwee-ether ze-cellulose kudaka. Ii-aggregates ezinemigangatho erhabaxa okanye iimilo ezingaqhelekanga zinokubonelela ngonxibelelwano olungcono ngoomatshini kunye ne-cellulose ethers, okomeleza ukuncamathela kunye nokudityaniswa kodaka.
7. Iimeko zokusingqongileyo: Izinto ezisingqongileyo ezifana neqondo lokushisa, ukufuma, kunye neemeko zokunyanga zinokuchaphazela ukuhanjiswa kunye nokusebenza kwe-cellulose ethers kwi-cement mortar. Ubushushu obugqithisileyo okanye amaqondo okufuma angatshintsha ixesha lokumisela, ukusebenza, kunye neempawu zomatshini zodaka oluqulethe i-cellulose ethers.
8. Ukongezwa kwezinye izongezo: Ubukho bezinye izongezo, ezifana ne-superplasticizers, i-air-entraining agents, okanye i-accelerators esetyenzisiweyo, inokusebenzisana ne-cellulose ethers kunye nefuthe ekusebenzeni kwabo kwi-cement mortar. Uvavanyo lokuhambelana kufuneka luqhutywe ukuvavanya i-synergistic okanye impembelelo echasayo yokudibanisa i-cellulose ethers kunye nezinye izongezo.

ukuqonda imiba ephembelelayo ye-cellulose ethers kudaka lwesamente kubalulekile ekuphuculeni ukwakheka kodaka kunye nokuphumeza iipropathi ezinqwenelekayo ezinjengokuphuculwa kokusebenza, ukugcinwa kwamanzi, kunye namandla oomatshini. Ukuqhuba uphononongo olucokisekileyo kunye neemvavanyo kunokunceda ukuchonga ezona mveliso zifanelekileyo ze-cellulose ether kunye namanqanaba edosi kwizicelo ezithile zodaka.