Ukuhlaziywa kokuqina nokuqina kwesisekelo se-granite.

 

I-Granite, itshe lemvelo elisetshenziswa kakhulu, lidume ngokuhlala isikhathi eside nokuzinza, okwenza kube ukukhetha okuhle kwezicelo ezihlukahlukene zokwakha. Ukuhlaziywa kokuqina nokuzinza kwezisekelo zegwadle kubalulekile ekuqondeni ukusebenza kwazo ngaphansi kwezimo zemvelo ezihlukene kanye nemithwalo.

I-Granite iyidwala elivutha umlilo elakhiwe ngokuyinhloko i-quartz, i-feldspar, ne-mica, elinomthelela emandleni ayo angavamile kanye nokumelana nesimo sezulu. Lapho kuhlaziywa ukuqina kwezisekelo zegwadle, kunezici ezimbalwa ezisebenzayo, okuhlanganisa ukwakheka kwamaminerali, i-porosity, kanye nokuba khona kwemifantu noma ukuphuka. Lezi zici zinquma ukuthi igwadle lingamelana kahle kangakanani nezinqubo zesimo sezulu esingokoqobo namakhemikhali, njengemijikelezo yokuqhwaza, imvula eneasidi, nokuhuzuka.

Ukuhlaziywa kokuqina kugxile emandleni egwadle okugcina ubuqotho besakhiwo ngaphansi kwemithwalo ehlukahlukene, okuhlanganisa amandla amile naguqukayo. Lokhu kubaluleke kakhulu ekusetshenzisweni okufana nokwakhiwa komgwaqo, lapho izisekelo ze-granite zisebenza njengezingqimba eziyisisekelo. Onjiniyela bavame ukwenza izivivinyo ukuze bahlole amandla acindezelayo, amandla okugunda, kanye nemodulus yokunwebeka kwegwadle, baqinisekise ukuthi ingakwazi ukusekela isisindo sezimoto futhi imelane nokuguga ngokuhamba kwesikhathi.

Ngaphezu kwalokho, umthelela wemvelo ezisekelweni ze-granite kufanele ubhekwe. Izinto ezinjengokushintshashintsha kwezinga lokushisa, amazinga omswakama, nokuchayeka kumakhemikhali kungathinta ukusebenza kwesikhathi eside kwegwadle. Ukunakekelwa okuvamile nokuqapha kungasiza ukunciphisa izinkinga ezingaba khona, kuqinisekiswe ukuthi izisekelo zegwadle zihlala zizinzile futhi zihlala isikhathi eside kuyo yonke impilo yazo.

Sengiphetha, ukuhlaziywa kokuqina nokuzinza kwezisekelo ze-granite kubalulekile ukuze kuqinisekiswe ukusebenza kahle kwazo kumaphrojekthi wokwakha. Ngokuqonda izakhiwo zegwadle kanye nezici ezithonya ukusebenza kwayo, onjiniyela bangenza izinqumo ezinolwazi ezithuthukisa impilo ende nokuthembeka kwezakhiwo ezakhiwe phezu kwezisekelo zegwadle.