I-mortar iyinto ebalulekile yokwakha esetshenziswa kumaphrojekthi okwakha amakhulu namancane. Ngokuvamile yakhiwa usimende, isihlabathi namanzi kanye nezinye izithasiselo. Kodwa-ke, ngokuthuthuka kobuchwepheshe, kuye kwaziswa izithasiselo eziningi ukuthuthukisa amandla okubopha, ukuguquguquka kanye nokumelana namanzi kwe-mortar.
Esinye sezingeniso zakamuva emhlabeni wezithasiselo ze-mortar ukusetshenziswa kwama-polymers okubopha. Ama-polymers okubopha ayizinto zokwenziwa ezithuthukisa amandla e-bond of mortars. Afakwa ku-mortar ngesikhathi sokuxuba futhi asabela ne-samente ukuze akhe i-bond eqinile. Ukusetshenziswa kwama-polymers okubopha kuye kwabonakala kuthuthukisa izakhiwo ze-mortars, okwenza zikwazi ukumelana nokuqhekeka nokungena kwamanzi.
Esinye isithasiselo esiye sathandwa eminyakeni yamuva nje yi-redispersible polymer powder (RDP). I-RDP iyi-polymer esetshenziselwa ukuthuthukisa izakhiwo ze-mortar. Yenziwe ngengxube yama-resin e-polymer ahlanganiswa ne-cement powder, amanzi nezinye izithasiselo. I-RDP iya ngokuya ithandwa ngenxa yokuguquguquka kwayo kanye nezakhiwo zayo ezihlukile.
Enye yezinzuzo eziyinhloko zokusebenzisa i-RDP ku-mortar yikhono layo lokukhulisa ukuguquguquka komkhiqizo oqediwe. Lesi sici sibaluleke kakhulu ezindaweni lapho izakhiwo zivame ukuzamazama komhlaba nezinye izinhlobo zezinhlekelele zemvelo. Izitini ezenziwe nge-RDP ziye zafakazelwa ukuthi ziqinile, ziguquguquka futhi azikwazi ukuqhekeka ngaphansi kwengcindezi. Ngaphezu kwalokho, i-RDP ingathuthukisa ukumelana namanzi, okwenza ibe yisithasiselo esiwusizo ezindaweni ezinemvula enkulu.
Ngaphezu kokuthuthukisa ukuguquguquka nokumelana namanzi, i-RDP iphinde ithuthukise ukusebenza kahle kwe-mortar. Iqinisekisa ukuthi i-mortar isakazeka futhi ihlale ngokulinganayo, okwenza ukwakhiwa kube lula kubakhi. Lokhu kuwusizo ikakhulukazi lapho kwakhiwe izindonga, phansi, nezinye izindawo ezidinga ukuqeda okufanayo. I-RDP iphinde inciphise inani lamanzi adingekayo ngesikhathi senqubo yokuxuba, okuholela ekutheni i-mortar ihlangane kakhulu futhi ibe nezimbobo ezimbalwa.
Ukusetshenziswa kwezithasiselo ze-mortar ezifana nama-polymers okubopha kanye ne-polymer powders e-redispersible kushintsha kakhulu imboni yokwakha. Izithasiselo eziqukethe lezi zithasiselo ziqinile, ziguquguquka kakhudlwana futhi zimelana kakhulu namanzi, okuqinisekisa isakhiwo esiqinile nesihlala isikhathi eside. Kufanele kuqashelwe ukuthi lezi zithasiselo kumele zisetshenziswe ngezilinganiso ezifanele. Izilinganiso ezinconywe umenzi kumele zilandelwe ukuze kugwenywe ukuthinta ikhwalithi ye-mortar.
Imboni yokwakha ishintsha njalo futhi ukuthuthuka okuhlukahlukene ezintweni zokwakha kuyajabulisa. Ukusetshenziswa kwezithasiselo ezitsheni, njenge-polymers ezibophayo kanye ne-polymer powders eziphinde zihlakazeke, kuyisinyathelo esifanele ukuqinisekisa isakhiwo esiqinile nesiqinile. Lezi zithasiselo ziqinisekisa ukuthi isakhiwo singamelana nezinhlekelele zemvelo, izikhukhula nezinye izinto ezingalimaza ubuqotho baso. Ngakho-ke, le ntuthuko kumele yamukelwe futhi isetshenziswe ukwakha izakhiwo ezingcono neziqinile esikhathini esizayo.
Isikhathi sokuthunyelwe: Okthoba-16-2023