Udongwe oluxutywe nomxube owomileyo ludongwe olugqityiweyo olwenziwe ngezinto ezidityanisiweyo zesamente, ii-aggregates, izizalisi, kunye nezinye izongezo ezisebenzayo ngomlinganiselo ofanelekileyo kumzi-mveliso. Ngexesha lokwakha, lungasetyenziswa ngokongeza amanzi kunye nokuxuba. Ukuze kuhlangatyezwane nokusebenza okwahlukeneyo kokwakha kunye neemfuno zokuqina, udongwe oluxutywe nomxube owomileyo ludla ngokufuna ukongezwa kwezongezo ezininzi, apho ii-cellulose ethers zizezinye zezona zongezo ze-polymer ezibalulekileyo kwindalo.
1. Uhlu lwezithako eziqhelekileyo ze-Dry-mix mortar
1.1. Izinto zokugcina amanzi
Imizekelo eqhelekileyo ibandakanyai-hydroxypropyl methylcellulose (HPMC),i-hydroxyethyl methylcellulose (HEMC)kunyei-hydroxyethyl cellulose (HEC).
Imisebenzi ephambili: Ukuphucula ukugcinwa kwamanzi kwi-mortar, ukuthintela ukopha, ukwandisa ixesha lokuvula, kunye nokuphucula ukuhambelana kunye ne-thixotropy ngexesha lokwakha.
1.2. Izithinteli kunye nezikhawulezisi
Izinto ezithintela ubushushu (ezifana ne-citric acid kunye ne-tartaric acid) ziyalibazisa ukuseta kwaye zifanelekile ukwakhiwa okushushu kakhulu okanye ukusetyenziswa okukhulu. Izinto ezikhawulezisa ubushushu (ezifana ne-chloride salts kunye ne-aluminium salts) ziyakhawulezisa ukuseta kunye nokuqina kumaqondo obushushu aphantsi.
1.3. Iiarhente zoQeqesho loMoya
Ii-lignin sulfonates kunye ne-alkyl sulfonates ezisetyenziswa kakhulu. Ziphucula ukusebenza kakuhle kwe-mortar, ukumelana ne-frost, kunye nokugeleza kokusetyenziswa kwayo ngokungenisa amaqamza amancinci.
1.4. Izinto Zokunciphisa Amanzi
Ngokuyintloko, ezisekelwe kwi-naphthalene kunye ne-polycarboxylic acid, zinciphisa ukusetyenziswa kwamanzi kwaye ziphucula amandla kunye noxinano lwe-mortar.
1.5. Umgubo wePolymer ophinda unyibilike (RDP)
Iphucula ukuguquguquka kwesamente, ukunamathela, kunye nokumelana nokuqhekeka. Isetyenziswa kakhulu kwi-adhesives zethayile, iinkqubo zokukhusela udonga lwangaphandle, kunye nee-mortar zokulungisa.
1.6. Ezinye izongezo ezisebenzayo
Ibandakanya izinto ezithintela ukubola, izinto ezigxotha amanzi, iipowders ezithintela amanzi, kunye ne-starch ethers eziqinisayo. Ezi zongezo zikhethwa ngokusekelwe kwindlela ecetywayo yokusetyenziswa kwe-mortar.
2. Indlela yokusebenza kwe-Cellulose Ethers kwi-Dry-Mix Mortars
Ii-cellulose ethers ziluhlobo lwee-polymers ezinyibilikayo emanzini ezisetyenziswa kakhulu kwiinkqubo ezahlukeneyo ze-dry-mix mortar. Iindlela zayo eziphambili zokusebenza ziquka:
2.1. Ukugcinwa kwamanzi
Iimolekyuli ze-cellulose ether zifunxa kwaye zivalele emanzini axutyiweyo, zinciphisa ukulahleka kwawo kwi-substrate nasemoyeni, ziqinisekisa ixesha elaneleyo lokufuma kwezinto eziqinisa isamente, ngaloo ndlela ziphucula amandla e-mortar.
2.2. Ulawulo lokutyeba kunye ne-Rheology
Ii-cellulose ethers zenza isisombululo esiqinileyo emanzini, ziphucula ukuqina okumanzi kunye nokunamathela kwe-mortar, okwenza ukuba ingatyibiliki lula (ukumelana nokuhla) xa isetyenziswa kwiindawo ezithe nkqo. Ngaphezu koko, ii-cellulose ethers ezikumgangatho ophezulu zibonisa i-thixotropy egqwesileyo, nto leyo enceda ukuthambisa kunye nokulungisa i-calendar.
2.3. Ukuphuculwa Kokusebenza
Isiphumo sokusebenzisana kokugcinwa kwamanzi kunye neempawu ze-rheological ziqinisekisa ixesha elide elisebenzisekayo kunye nokuziva okuthambileyo kwe-mortar, kunciphisa ukudinwa ngexesha lokufaka.
2.4. Uzinzo oluPhucukileyo
Ukunciphisa ukwahlulwahlulwa kunye nokopha kwegazi kwezinto ezihlanganisiweyo kunye nezinto ezisebenzisa isamente kuphucula ukufana kwesamente kunye nokuzinza komgangatho wolwakhiwo.
3. Ukusetyenziswa kweCellulose Ethers kwiiMortars ezahlukeneyo zeDry-Mix
3.1. I-Masonry Mortar kunye ne-Plaster Mortar
Kufuneka amanzi amaninzi agcinwe kakuhle kwaye kube lula ukusebenza. Ii-cellulose ethers zinokunciphisa ukuqhekeka nokuqhekeka, kwaye ziphucule ukunamathela.
3.2. Isincamathelisi sethayile
Kufuneka iipropati ezintle kakhulu zokulwa nokuwa kunye nexesha elide lokuvula. Ii-cellulose ethers ziqinisekisa ukuba iithayile azityibiliki emva kokusetyenziswa kwaye zivumela ixesha elaneleyo lokulungisa.
3.3. I-mortar eZilinganisayo
Kufuneka ulwelo oluphezulu kunye nokuzinza. Khetha i-cellulose ether ene-viscosity ephantsi kunye nokugcinwa kwamanzi okuphezulu ukuze uphephe ukopha kunye nokwahlukana.
3.4. I-mortar yeNkqubo yokuGcina i-Insulation yangaphandle (EIFS)
Ukugcinwa kwamanzi kuchaphazela ngokuthe ngqo ukunamathelana phakathi kwebhodi yokukhusela kunye nodaka. Ii-ether ze-cellulose zinokuqinisekisa umgangatho ofanayo ngexesha lokusetyenziswa okukhulu.
4. Izinto ekufuneka ziqwalaselwe xa ukhetha okanye wongeza
Ukukhetha i-Viscosity: I-Viscosity ephezulu inika ukugcinwa kwamanzi okuqinileyo kodwa inokunciphisa ukusebenza; i-viscosity ephantsi inika ulwelo oluhle kodwa ithambekele ekopheni. Uhlengahlengiso kufuneka lwenziwe ngokusekelwe kwifom ethile. Ubungakanani bokongeza: Ngokwesiqhelo yi-0.1% ukuya kwi-0.5% yobunzima bezinto ezisimende. Ukongezwa okugqithisileyo kunokuchaphazela amandla kunye nexesha lokomisa.
Ukusasazeka: Kufuneka ukusasazeka ngokupheleleyo ngexesha lokuxuba okomileyo ukuze kuthintelwe ukuxinana emva kokongeza amanzi.
Ukuphucula ukusebenza kwe-dry-mix mortar kufuna inkqubo yokongeza eyomeleleyo, kwayei-cellulose etherluguquko oluphambili kule nkqubo. Ayiqinisekisi nje kuphela ukugcinwa kwamanzi kunye nokusebenza kakuhle kwe-mortar, kodwa ikwachaphazela ngokungathanga ngqo amandla e-bond, ukuqina, kunye nomgangatho womphezulu. Ngenxa yokwanda kweemfuno zokwakha kunye nokwamkelwa ngokubanzi kweengcamango zokonga amandla kunye nokusingqongileyo, ukusetyenziswa kwe-cellulose ether kwi-mortar eyomileyo kuya kuba nokwahluka ngakumbi kwaye kucocwe.
Ixesha leposi: Agasti-15-2025