Ubungangamsha kunye nokuzinza kolwakhiwo olusetyenziswa ngoomatshini bodaka lokutyabeka zizinto eziphambili kuphuhliso, kunye ne-cellulose ether, njengondoqo wokudibanisa udaka lokutyabeka, idlala indima engenakubuyiselwa.Iselulosi etherineempawu zogcino lwamanzi aphezulu kunye nepropathi elungileyo yokusonga, kwaye ifaneleke ngokukodwa umatshiniukwakhiwayodaka lokutyabeka.
Izinga lokugcinwa kwamanzi odaka lokutyabeka
Izinga lokugcinwa kwamanzi lokutyabeka udaka luyinto eyandayo xa i-viscosity ye-cellulose ether isuka kwi-50,000 ukuya kwi-100,000, kwaye iyindlela ehlayo xa isuka kwi-100,000 ukuya kwi-200,000, ngelixa izinga lokugcinwa kwamanzi kwi-cellulose ether yokutshiza ngomatshini lifikelele. ngaphezulu kwama-93%.Okukhona uphezulu izinga logcino lwamanzi kudaka, kokukhona kunokwenzeka ukuba udaka lunokopha.Ngexesha lovavanyo lokutshiza ngomatshini wokutshiza ngodaka, kwafunyaniswa ukuba xa izinga lokugcinwa kwamanzi kwi-ether yeselulosi lingaphantsi kwama-92%, udaka luthande ukopha emva kokuba lubekwe kangangexesha elithile, kwaye, ekuqaleni kokutshiza. , kulula ngakumbi ukuvala umbhobho.Ke ngoko, xa ulungiselela udaka lokutyabeka olulungele ulwakhiwo olungoomatshini, kufuneka sikhethe i-cellulose ether ephezuluukugcinwa kwamanziizinga.
Ukutyabeka udaka 2h ukulahleka kokuhambelana
Ngokweemfuno ze-GB/T25181-2010 “I-Ready Mixed Mortar”, imfuno yokulahleka kweeyure ezimbini yodaka oluqhelekileyo lokutyabeka lungaphantsi kwama-30%.Uvavanyo lwelahleko lwe-2h lwenziwa kunye ne-viscosities ye-50,000, i-100,000, i-150,000, kunye ne-200,000.Ingabonwa ukuba njengoko i-viscosity ye-cellulose ether ikhula, ixabiso lelahleko le-2h lokuhambelana kwe-mortar liya kuncipha ngokuthe ngcembe.Nangona kunjalo, ngexesha lokutshiza kwangempela, kwafunyaniswa ukuba ngexesha lonyango lokulinganisa kamva, ngenxa yokuba i-viscosity ye-cellulose ether iphezulu kakhulu, ukudibanisa phakathi komdaka kunye ne-trowel kuya kuba kukhulu, okungahambelani nokwakhiwa.Ngoko ke, kwimeko yokuqinisekisa ukuba i-mortar ayihlali kwaye ayifuni, iphantsi kwexabiso le-viscosity ye-cellulose ether, ingcono.
Ukuvulwa kodaka lokutyabekaixesha
Emva kweukutyabeka udakaitshizwe eludongeni, ngenxa yokufunxwa kwamanzi kwi-substrate eludongeni kunye nokunyuka komphunga wokufuma kwindawo yodaka, udaka luya kwenza amandla athile ngexesha elifutshane, eliya kuchaphazela ukwakhiwa komgangatho olandelayo, ngoko ke kuyimfuneko ukuhlalutya ixesha lokumisela udaka.Ixabiso le-viscosity ye-cellulose ether ikuluhlu lwe-100,000 ukuya kwi-200,000, ixesha lokumisela alitshintshi kakhulu, kwaye libuye libe nokulungelelaniswa okuthile kunye nezinga lokugcinwa kwamanzi, oko kukuthi, ukuphakama kokugcinwa kwamanzi, ixesha elide. ixesha lokumisa udaka.
Ubumanzi bodaka lokutyabeka
Ilahleko yezixhobo zokutshiza inento eninzi yokwenza nodaka lodaka lokutyabeka.Ngaphantsi komlinganiselo ofanayo we-water-material, i-viscosity ephezulu ye-cellulose ether, iyancipha ixabiso le-fluidity yodaka.Oko kukuthi, ukuphakama kwe-viscosity ye-cellulose ether, ngakumbi ukuchasana kodaka kwaye kukhulu ukuguga kunye nokukrazula kwisixhobo.Ke ngoko, ukwakhiwa ngoomatshini bodaka lokutyabeka, i-viscosity esezantsi ye-cellulose ether ingcono.
Ukumelana ne-Sag yodaka lokutyabeka
Emva kokuba udaka lokutyabeka lutshizwe eludongeni, ukuba ukuxhathisa sag yeudakaakulunganga, udaka luya kugrumba okanye lutyibilike, luchaphazele ngokunzulu ukuthambeka kodaka, okuya kubangela ingxaki enkulu kulwakhiwo lwamva.Ke ngoko, udaka olulungileyo kufuneka lube ne-thixotropy egqwesileyo kunye nokumelana ne-sag.Uvavanyo lwafumanisa ukuba emva kokuba i-cellulose ether ene-viscosity ye-50,000 kunye ne-100,000 yakhiwe ngokuthe nkqo, iithayile zaya ngqo phantsi, ngelixa i-cellulose ether ene-viscosity ye-150,000 kunye ne-200,000 ayizange ihambe.I-engile isamiswa ngokuthe nkqo, kwaye akukho kutyibilika kuyakwenzeka.
Amandla odaka lokutyabeka
Kusetyenziswa i-50 000, 100 000, 150 000, 200 000, kunye ne-250 000 ye-cellulose ethers ukulungiselela iisampulu zodaka lokutyabeka ukuze kwakhiwe oomatshini, kwafunyaniswa ukuba ngokunyuka kwe-viscosity ye-cellulose ether, ixabiso lamandla lokutyabeka udaka liyancipha.Oku kungenxa yokuba i-cellulose ether yenza isisombululo esiphezulu se-viscosity emanzini, kwaye inani elikhulu leebhubhu zomoya ezizinzileyo ziya kuqaliswa ngexesha lokuxuba udaka.Emva kokuba i-samente iqina, la maqamza omoya aya kwenza inani elikhulu le-voids, ngaloo ndlela ukunciphisa ixabiso lamandla omdaka.Ngoko ke, udaka lokutyabeka olulungele ukwakhiwa komatshini kufuneka lukwazi ukuhlangabezana nexabiso lamandla elifunekayo kuyilo, kwaye i-ether ye-cellulose efanelekileyo kufuneka ikhethwe.
Ukulungelelaniswa kwezixhobo zoomatshini bomntu yeyona nto iphambili kulwakhiwo olungoomatshini, kwaye umgangatho wodaka ngowona ubalulekileyo.Kuphela ngokusebenzisa i-ether ye-cellulose efanelekileyo inokuthi iipropati zodaka zihlangabezane neemfuno zokutshiza ngomatshini.
Ixesha lokuposa: Jul-21-2023