I-Methyl Hydroxyethyl Cellulose (MHEC), i-cellulose ether eqhelekileyo kwizixhobo zokwakha, isetyenziswa kakhulu kwi-dry-mix mortars, kwi-tile adhesives, kwi-putty powders, nakwi-thermal insulation mortars ngenxa yokuba ityebile, igcina amanzi, kwaye iphucula ukusebenza kwayo. Iinjineli ezininzi zixhalabile ngombuzo obalulekileyo xa zisebenzisa i-MHEC: Ithini idosi ecetyiswayo ye-MHEC kwi-samente mortar?
1. Uluhlu olucetyiswayo lweMilinganiselo ye-MHEC kwi-Cement Mortar
Ngokwesiqhelo, izinga lokongezwa kwe-MHEC kwi-samente mortar liphantsi kakhulu, kodwa linokuphucula kakhulu ukusebenza kwe-mortar. Ngokusekelwe kumava oshishino kunye nedatha yobugcisa, idosi ecetyiswayo ngokubanzi yile:
Udaka oluqhelekileyo lwesamente: malunga ne-0.2‰–0.6‰ (oko kukuthi, iigram ezingama-200–600 ngetoni nganye yomgubo owomileyo).
Udaka olufakelweyo kunye nodaka olufakelweyo: luhlala luphakathi kwe-0.3‰–0.5‰.
Ii-insulation mortar okanye ii-mortars ezikhethekileyo: iidosi eziphezulu kancinci, malunga ne-0.4‰–0.7‰, zinokufuneka. I-tile adhesive okanye i-motar esebenza kakhulu: Idosi inganyuswa iye kwi-0.6‰–1.0‰ njengoko kufuneka, kodwa ayidluli kwi-1%.
Kufuneka kuqatshelwe ukuba idosi ye-MHEC ecetyiswayo ayiloxabiso limiselweyo kwaye ichaphazeleka zizinto ezifana nokwakheka kwesamente, uhlobo lwesamente, ubuncinci bokugcwalisa, ubushushu obungqongileyo kunye nokufuma. Ke ngoko, kwimveliso yokwenyani, idosi efanelekileyo idla ngokugqitywa ngovavanyo lovavanyo.
2. Izinto Ezichaphazela Idosi Ecetyiswayo
2.1. Uhlobo lwesamente kunye nomlinganiselo
Umsebenzi kunye nokuqina kwesamente, kunye nomxholo wezinto ezixutyiweyo (ezifana nothuthu oluphumayo kunye nomgubo weminerali), zonke ezi zinto zichaphazela umlinganiselo ofanelekileyo we-MHEC. Iimortars ezinomsebenzi ophezulu kunye nokusetyenziswa kwamanzi amaninzi zihlala zifuna i-cellulose ether engaphezulu ukuze zibonelele ngokugcinwa kwamanzi.
2.2. Iipropati zeSand kunye neFiller
Ukusasazwa kobukhulu besanti kunye nokucoleka kwayo kunefuthe elikhulu kwimfuno yamanzi. Isanti okanye iimortars ezincinci ezinezihluzo ezilula zihlala zifuna umthamo owandisiweyo we-MHEC ukuze kugcinwe ulungelelwano olufanelekileyo kunye nokusebenza kakuhle.
2.3. Indawo yoKwakha
Kwiindawo ezinobushushu obuphezulu, ukufuma okuphantsi, okanye umoya onamandla, ukufuma kwe-mortar kuyaphela ngokukhawuleza, nto leyo ebangela ukuba kubekho i-MHEC dosage eyongezelelweyo ukuze kugcinwe ukugcinwa kwamanzi kwaye kwandiswe ixesha lokuvula.
2.4. Ukusebenza okujoliswe kuko
Ukuba ukugcinwa kwamanzi kunye nokumelana nokuwa kubalulekile, umthamo unganyuswa ngokulinganisela.
Ukuba ukusebenza kakuhle yeyona nto iphambili, idosi ephantsi iya kwanela.
Kwizicelo ezinomgangatho omncinci (ezifana nezincamathelisi zethayile), ukunyusa ngokufanelekileyo umthamo we-MHEC kubaluleke kakhulu.
3. Iziphumo ze-MHEC kwiMortar
Ukongezwa okunengqiqo kwe-MHEC kunokuphucula kakhulu iipropati ze-mortar, kuquka:
3.1. Ukugcinwa Kwamanzi Okuphuculweyo
I-cellulose ether yenza isisombululo esifanayo nesiqinileyo kwi-mortar, esivalela umswakama ngempumelelo kwaye sithintele ukufuma okungaphelelanga kwesamente, ngaloo ndlela sonyusa amandla.
3.2. Ukuphuculwa Kokusebenza Nokusebenza
Udaka luba bushelelezi kwaye lube mhle, nto leyo eyenza kube lula ukusasazeka, ukuyifaka, kunye nokuxinana ngexesha lokwakha, nto leyo enciphisa ukopha kunye nokwahlukana.
3.3. Ukunamathela Okuphuculweyo kunye Nokumelana Nokuwohloka
Ngexesha lokwakhiwa ngokuthe nkqo, i-mortar ayinakukwazi ukugoba kwaye yenza unxibelelwano oluhle ne-substrate, i-masonry, okanye umphezulu webhodi yokukhusela.
3.4. Ixesha Elivulekileyo Elide
I-MHEC inciphisa izinga lokuphuma kwamanzi kwi-mortar, ivumela abasebenzi bokwakha ixesha elingakumbi lokuziqhelanisa nokuphucula ukusebenza kakuhle kolwakhiwo.
3.5. Ukusebenza kakuhle kweMortar iyonke okuphuculweyo
Oku kuquka ukumelana neentanda, ukuqina, kunye nomgangatho womphezulu, ukuqinisekisa ukuba i-mortar inamandla kwaye izinzile emva kokuqina.
4. Iingcebiso zokusetyenziswa
Vavanya Ngaphambi Kokunyuswa Kwemithamo: Ngenxa yoluhlu olubanzi lweendlela zokuxuba, kucetyiswa ukuba kwenziwe uvavanyo lwelabhoratri ukuze kuchongwe idosi efanelekileyo.
Kuphephe Ukusetyenziswa Ngokugqithisileyo: Ukongezwa kwe-MHEC ngokugqithisileyo kunokubangela ukuba i-mortar ibe krakra kakhulu, nto leyo eyenza kube nzima ukuyisebenzisa kwaye ichaphazele namandla ayo.
Qinisekisa ukusasazeka okufanayo: Ngexesha lokuxuba okomileyo, qiniseka ukuba i-MHEC ixutywe kakuhle nesanti kunye nesamente ukuthintela ukuxinana.
Idosi ecetyiswayo ye-MHECKwisigqubuthelo sesamente sidla ngokuba phakathi kwe-0.2‰ kunye ne-0.6‰, kunye nezigqubuthelo ezikhethekileyo ezivumela ukonyuka okufanelekileyo ukuya kwi-0.7‰ ukuya kwi-1.0‰. Umlinganiselo othile kufuneka uphuculwe ngokusekelwe kuhlobo lwesigqubuthelo, iimpawu zezinto eziluhlaza, kunye nendawo yokwakha. Ukusetyenziswa ngokufanelekileyo kwe-MHEC akugcini nje ngokuphucula ukugcinwa kwamanzi kwesigqubuthelo, ukusebenza kakuhle, kunye nokusebenza kokwakha, kodwa kuphucula kakhulu amandla okubopha kunye nokuqina. Sisithako esibalulekileyo kwiifomyula zokwakha zanamhlanje.
Ixesha leposi: Agasti-20-2025