Igrout esekelwe kumkhiqizo we-cement

Izinto ezisekelwe kwi-cement zibalulekile emkhakheni wokwakhiwa kwezakhiwo eziyindlwana ezijulile nasezobunjiniyela bejometri, zisebenza njengezinto ezibalulekile ekuzinziseni umhlaba, ukufaka izikhala, nokuqinisekisa ubuqotho bezakhiwo ezahlukene. Lezi zihlanganisi, ezivame ukuba nePortland cement, amanzi, nezithasiselo ezahlukene, zakha umkhiqizo ophilayo, osebenziseka kalula oza uqina ngokuhamba kwesikhathi ukuze ulethe ukweseka okuqinile nokuhlala isikhathi eside kumasistimu ezisekelo. Izakhamizi ze-grout ezisekelwe kwi-cement zingalungiswa ukuze zihlangabezane nezidingo ezithile zephrojekthi, zikwenza kube izixazululo eziguquguqukayo kweziningi zokusebenza. Ekwakheni izisekelo ezijulile, ama-grout asekelwe kwi-cement asetshenziswa kakhulu ekufakweni nasekulungiseni ama-pile, ukubeka izisekelo, kanye nokuzinzisa umhlabathi. Lapho efakwa emhlabathini, lawa ma-grout afaka izikhala nezikhala, ephucula kakhulu amandla okuphatha umthwalo wombono kanye nokuthuthukisa ukuzinza kokwakhiwa. Lokhu kubaluleke kakhulu ezindaweni zasemadolobheni lapho izakhiwo ezikhona zingase zidinge ukuqiniswa noma lapho k dealing nezimo zomhlabathi ezinzima. Ngaphezu kokusebenza kwamagama ajwayelekile, ama-grout asekelwe kwi-cement asebenzelwa futhi ezinqubweni zokuthuthukisa umhlaba, njenge-mixing ye-soil-cement kanye ne-jet grouting, okuthuthukisa izakhiwo zezimali zomhlabathi nokwakha isisekelo esithembekile sokwakhiwa. Izincazelo ezijwayelekile zama-grout asekelwe kwi-cement zifaka amandla okucindezela, ukuhamba, nezikhathi zokubeka, okwehlukahlukana kuncike kuhlelo oluthile kanye nosizo oluhlose. Kwesinye isikhathi, lawa ma-grout akhombisa amandla okucindezela aqukethe ukusuka ku-2,500 psi kuya phezulu kwe-10,000 psi, kuye ngalezo zidingo zephrojekthi. Ukuhamba kwe-grout kubalulekile ukuze kufakwe kahle; ngakho-ke, izakhiwo ze-rheological kumele zihlolwe ngokucophelela. Ngaphezu kwalokho, izinto ezifana ne-shrinkage, permeability, kanye nokumelana nokuhlaselwa kwemichiza zibalulekile uma kukhethwa i-grout efanele yokusebenza ethile. Lapho kukhethiwe ama-grout asekelwe kwi-cement, izikhombandlela ezithile zidinga ukuba zikhethwe. Uhlelo oluthile—noma kukhona ukufaka izisekelo, i-pile grouting, noma ukuzinzisa umhlaba—kuza nomthelela omkhulu ekukhetheni ukuhlanganiswa kwalolu hlobo lwe-grout. Izici ezifana nezimo zemvelo, kuhlanganise nezinga lokushisa nomswakama, kufanele zicatshangelwe, njengoba lokhu kungase kuthinte izikhathi zokubola nokuthuthukiswa kwamandla. Ngaphezu kwalokho, ukuqonda izakhiwo zomhlabathi esizeni sephrojekthi kubalulekile, njengoba izinhlobo zomhlaba ezahlukene zingase zisebenzisane ne-grout ngezindlela ezihlukile, kuthinta ukusebenza kokugcina. Emkhakheni ongena emnqamulweni wokwakhiwa kwezakhiwo ezijulile nezobunjiniyela bejometri, ukuba nethuba lokuthola ama-grout asekelwe kwi-cement asezingeni eliphezulu kungaba nomthelela omkhulu empumelelweni yephrojekthi. Nokho, khangela noma uthenga, ukuvuma lezi zinto ezivela kumphakeli owaziwayo kuqinisekisa ukuthi abaklami banezixazululo ezithembekile ezidingekayo ukuze bahlangabezane nezinselelo ezinzima zokwakha. Ngokuhlanganisa ama-grout asendaweni ye-cement athuthukile ezinqubweni zabo, ochwepheshe embonini bangathuthukisa ukusebenza nosuku lokuphila kwamaphrojekthi abo, ekugcineni kuholela emiphumeleni yokwakhiwa ephephile, enza kahle.