I-Methyl Hydroxyethyl Cellulose (MHEC), i-cellulose ether evamile ezintweni zokwakha, isetshenziswa kabanzi kuma-mortar axutshwe okomile, kuma-adhesive ethayela, kuma-putty powder, kanye nama-mortar okushisa ngenxa yokuqina kwawo, ukugcinwa kwamanzi, kanye nezakhiwo zokuthuthukisa ukusebenza. Onjiniyela abaningi bakhathazekile ngombuzo obalulekile lapho besebenzisa i-MHEC: Iyini i-MHEC enconyiwe ku-mortar yesamente?
1. Ububanzi Bomthamo Onconywayo we-MHEC ku-Cement Mortar
Ngokuvamile, izinga lokwengeza i-MHEC ku-cement mortar liphansi kakhulu, kodwa lingathuthukisa kakhulu ukusebenza kwe-mortar. Ngokusekelwe kokuhlangenwe nakho kwemboni kanye nedatha yobuchwepheshe, umthamo onconywayo ngokuvamile uwukuthi:
Udaka olujwayelekile lwesimende: cishe 0.2‰–0.6‰ (okungukuthi, amagremu angu-200–600 ngethani lempuphu eyomile).
Ukufaka iplasta yodaka kanye nodaka lokwakha: ngokuvamile kuphakathi kuka-0.3‰–0.5‰.
Udaka lokufaka ugesi noma odaka olukhethekile: kungadingeka imithamo ephezulu kancane, cishe engu-0.4‰–0.7‰,. I-tile adhesive noma udaka olusebenza kahle: Imithamo ingandiswa ibe cishe ngu-0.6‰–1.0‰ njengoba kudingeka, kodwa ayivamile ukudlula u-1%.
Kufanele kuqashelwe ukuthi umthamo we-MHEC onconywayo awulona inani elinqunyiwe futhi uthintwa yizici ezifana nokwakheka kwe-mortar, uhlobo lwesimende, ubuncane bokugcwalisa, izinga lokushisa elizungezile kanye nomswakama. Ngakho-ke, ekukhiqizweni kwangempela, umthamo ofanele uvame ukunqunywa ngokuhlolwa kokuhlola.
2. Izici Ezithinta Isilinganiso Esinconywayo
2.1. Uhlobo Lwesimende kanye Nesilinganiso
Umsebenzi kanye nobuncane besimende, kanye nokuqukethwe kwezingxube (njengomlotha ompunga kanye nempuphu yamaminerali), konke kuthinta isilinganiso se-MHEC esifanele. Ama-mortar anomsebenzi ophezulu kanye nokusetshenziswa kwamanzi amaningi ngokuvamile adinga i-cellulose ether eningi ukuze ahlinzeke ngokugcinwa kwamanzi.
2.2. Izakhiwo Zesihlabathi Nokugcwalisa
Ukusatshalaliswa kobukhulu bezinhlayiya zesihlabathi kanye nokucwebezela kuthinta kakhulu isidingo samanzi. Isihlabathi noma izingcezu ezincane eziqukethe izigcwalisi ezilula zivame ukudinga umthamo owengeziwe we-MHEC ukuze kugcinwe ukuhambisana nokusebenza okufanele.
2.3. Indawo Yokwakha
Ezindaweni zokushisa okuphezulu, umswakama ophansi, noma umoya onamandla, umswakama we-mortar uyanyamalala ngokushesha, okudinga umthamo owengeziwe we-MHEC ukuze kulondolozwe ukugcinwa kwamanzi futhi kwandiswe isikhathi sokuvula.
2.4. Ukusebenza Okuqondiwe
Uma ukugcinwa kwamanzi kanye nokumelana nokuwa kubalulekile, umthamo ungandiswa ngokulinganisela.
Uma ukusebenza kahle kuyindaba eyinhloko, umthamo ophansi uzokwanela.
Ngokusebenzisa izinto ezingqimba ezincane (njengezinto zokunamathisela amathayili), ukwandisa umthamo we-MHEC ngendlela efanele kubaluleke kakhulu.
3. Imiphumela ye-MHEC ku-Mortar
Ukwengezwa okunengqondo kwe-MHEC kungathuthukisa kakhulu izakhiwo ze-mortar, okuhlanganisa:
3.1. Ukugcinwa Kwamanzi Okuthuthukisiwe
I-cellulose ether yakha isixazululo esifanayo, esiqinile ku-mortar, esivalela umswakama ngempumelelo futhi sivimbele ukumuncwa okungaphelele kwesimende, ngaleyo ndlela sandise amandla.
3.2. Ukuthuthukiswa Kokusebenza Nokusebenza Kahle
Udaka luba bushelelezi futhi lube luhle, okwenza kube lula ukusabalalisa, ukufaka, nokunamathelana ngesikhathi sokwakha, kunciphisa ukopha kanye nokuhlukaniswa.
3.3. Ukunamathela Okuthuthukisiwe Nokumelana Nokuwohloka
Ngesikhathi sokwakhiwa okuqondile, udaka alukwazi ukugoba futhi lwakha isibopho esihle nesisekelo, udonga, noma ibhodi lokufaka izinto zokushisa.
3.4. Isikhathi Eside Sokuvula
I-MHEC yehlisa izinga lokuhwamuka kwamanzi ku-mortar, ivumela izisebenzi zokwakha isikhathi esengeziwe sokuzivumelanisa nokuthuthukisa ukusebenza kahle kokwakha.
3.5. Ukusebenza Okuthuthukisiwe Kokubumba Okuphelele
Lokhu kuhlanganisa ukumelana nokuqhekeka, ukuqina, kanye nekhwalithi yobuso, ukuqinisekisa ukuthi i-mortar inamandla futhi izinzile ngemva kokuqina.
4. Izincomo Zokusetshenziswa
Hlola Ngaphambi Kokukala: Ngenxa yobubanzi bezindlela zokwenziwa, kunconywa ukwenza izivivinyo zelebhu ukuze kutholakale umthamo ofanele.
Gwema Ukusetshenziswa Ngokweqile: Ukwengeza i-MHEC ngokweqile kungabangela ukuthi udoti ube lukhuni kakhulu, okwenza kube nzima ukuwusebenzisa futhi kuthinte ngisho namandla.
Qinisekisa Ukuhlakazeka Okufanayo: Ngesikhathi sokuxuba okomile, qiniseka ukuthi i-MHEC ixutshwe kahle nesihlabathi kanye nesamente ukuvimbela ukuqhekeka.
Isilinganiso esinconywayo se-MHECKu-samente mortar ngokuvamile iphakathi kuka-0.2 no-0.6, kanti ama-mortar akhethekile avumela ukwanda okufanele kube ngu-0.7 kuya ku-1.0. Isilinganiso esithile kufanele silungiselelwe ngokusekelwe ohlotsheni lwe-samente, izakhiwo zezinto zokusetshenziswa, kanye nendawo yokwakha. Ukusetshenziswa kahle kwe-MHEC akugcini nje ngokuthuthukisa ukugcinwa kwamanzi kwe-samente, ukusebenza kahle, kanye nokusebenza kokwakha, kodwa futhi kuthuthukisa kakhulu amandla okubopha kanye nokuqina. Kuyisithasiselo esibalulekile ekwakhiweni kwe-samente yokwakha yesimanje.
Isikhathi sokuthunyelwe: Agasti-20-2025