Udaka luyimpahla yokwakha ebalulekile esetshenziswa kumaphrojekthi wokwakha amakhulu namancane.Ngokuvamile kuhlanganisa usimende, isihlabathi namanzi kanye nezinye izithasiselo.Kodwa-ke, ngokuthuthuka kobuchwepheshe, izithasiselo eziningi ziye zethulwa ukuze kuthuthukiswe amandla okubopha, ukuguquguquka nokuphikiswa kwamanzi kodaka.
Esinye sezethulo zakamuva emhlabeni wezithasiselo zodaka ukusetshenziswa kwama-polymers abophayo.Ama-polymers e-binder ayizinto zokwenziwa ezithuthukisa amandla esibopho sodaka.Zengezwa odakeni ngesikhathi sokuxutshwa bese zisabela ngosimende ukuze zenze isibopho esiqinile.Ukusetshenziswa kwama-polymers abophezelayo kuye kwaboniswa ukuthuthukisa izakhiwo zemishini ye-mortars, okwenza ukuthi imelane kakhulu nokuqhekeka nokungena kwamanzi.
Esinye isithako esiye saduma eminyakeni yamuva i-polymer powder ephinda ihlakazeka (RDP).I-RDP iyi-polymer esetshenziselwa ukuthuthukisa izakhiwo zodaka.Yenziwe ngengxube yezinhlaka ze-polymer ezibuye zixutshwe nempushana kasimende, amanzi nezinye izithasiselo.I-RDP iya ngokuya iduma ngenxa yokuguquguquka kwayo kanye nezakhiwo ezihlukile.
Enye yezinzuzo eziyinhloko zokusebenzisa i-RDP odakeni amandla ayo okwandisa ukuguquguquka komkhiqizo ophelile.Lesi sici sibaluleke kakhulu ezindaweni lapho izakhiwo zithandwa khona ukuzamazama komhlaba nezinye izinhlobo zezinhlekelele zemvelo.Izinsimbi ezenziwe nge-RDP ziye zafakazelwa ukuthi zihlala isikhathi eside, ziguquguquka futhi azijwayele ukuqhekeka ngaphansi kwengcindezi.Ukwengeza, i-RDP ingathuthukisa ukumelana namanzi, iyenze ibe isithako esiwusizo ezindaweni ezinemvula ephezulu.
Ngaphezu kokuthuthukisa ukuguquguquka nokungazweli kwamanzi, i-RDP iphinde ithuthukise ukusebenza kodaka.Iqinisekisa ukuthi udaka luyasakazeka futhi lubekwe ngokulinganayo, okwenza ukwakhiwa kube lula kubakhi.Lokhu kubaluleke kakhulu lapho kwakhiwa izindonga, phansi, nezinye izindawo ezidinga ukuphela okufanayo.I-RDP iphinde yehlise inani lamanzi adingekayo ngesikhathi sokuxutshwa, okuholela ekutheni kube nodaka oluhlangene olunezikhala ezimbalwa.
Ukusetshenziswa kwezithasiselo zodaka njengama-polymers abophayo kanye nezimpushana ze-polymer ezihlakazeka kabusha kuguqula imboni yezokwakha.Ama-mortar aqukethe lezi zithasiselo anamandla, aguquguquka kakhulu futhi amelana kakhulu namanzi, aqinisekisa isakhiwo esihlala isikhathi eside futhi esihlala isikhathi eside.Kumele kuqashelwe ukuthi lezi zithako kufanele zisetshenziswe ngezilinganiso ezifanele.Izilinganiso ezituswe umenzi kufanele zilandelwe ukuze kugwenywe ukuthikameza ikhwalithi yodaka.
Imboni yezokwakha ihlezi ishintsha futhi ukuthuthukiswa okuhlukahlukene kwezinto zokwakha kuyajabulisa.Ukusetshenziswa kwezithasiselo odakeni, njengama-polymers abophayo kanye nezimpushana ze-polymer ezihlakazeka kabusha, kuyisinyathelo esisendleleni efanele ukuze kuqinisekiswe isakhiwo esihlala isikhathi eside futhi esiqinile.Lezi zengezo ziqinisekisa ukuthi lesi sakhiwo singakwazi ukumelana nezinhlekelele zemvelo, izikhukhula nezinye izici ezingaphazamisa ubuqotho baso.Ngakho-ke, le nqubekelaphambili kumele yamukelwe futhi isetshenziselwe ukwakha izakhiwo ezingcono neziqinile esikhathini esizayo.
Isikhathi sokuthumela: Oct-16-2023