Inkundla yegwadle iyinkundla eyenziwe ngegwadle. Yakhiwe ngetshe elivuthayo, igwadle ilitshe eliqinile, elicwebezelayo. Ekuqaleni yakhiwe i-feldspar, i-quartz, ne-granite, ihlanganiswe nenye noma ngaphezulu amaminerali amnyama, wonke ahlelwe ngendlela efanayo.
I-Granite ngokuyinhloko yakhiwe i-quartz, i-feldspar, ne-mica. I-Feldspar yenza ama-40% -60%, kanti i-quartz ngama-20% -40%. Umbala wayo uncike ohlotsheni kanye nenani lalezi zingxenye. I-Granite iyidwala elicwebezele ngokugcwele. I-granite yekhwalithi ephezulu inezinhlamvu ezinhle futhi ezifanayo, isakhiwo esiminyene, okuqukethwe okuphezulu kwe-quartz, kanye ne-feldspar sheen ekhanyayo.
I-Granite inokuqukethwe okuphezulu kwe-silica, okuyenza ibe idwala eline-asidi. Amanye ama-granite aqukethe amanani okulandela ama-elementi akhipha imisebe, ngakho-ke lezi zinhlobo zegwadle kufanele zigwenywe ukuze zisetshenziswe endlini. I-Granite inesakhiwo esiminyene, ukuthungwa okuqinile, futhi imelana nama-asidi, ama-alkali, nesimo sezulu, okuyenza ifanelekele ukusetshenziswa isikhathi eside ngaphandle. I-Granite inezici ezilandelayo:
1. I-Granite inesakhiwo esiminyene, amandla acindezelayo aphezulu, ukumuncwa kwamanzi aphansi, ubulukhuni obuphezulu bendawo, ukuqina okuhle kwamakhemikhali, nokuqina okuqinile, kodwa ukumelana nomlilo okubi.
2. I-Granite inesakhiwo se-granular esinezinhlamvu ezinhle, eziphakathi, noma eziqinile, noma isakhiwo se-porphyritic. Izinhlamvu zayo zifana futhi zilungile, zinezikhala ezincane (i-porosity ngokuvamile i-0.3% kuya ku-0.7%), ukumuncwa kwamanzi okuphansi (imvamisa i-0.15% kuya ku-0.46%), kanye nokumelana nesithwathwa okuhle.
3. I-Granite iqinile, inobulukhuni be-Mohs obungu-6 kanye nokuminyana okusuka ku-2.63 g/cm³ kuya ku-2.75 Ububanzi be-g/(cm³) bunamandla okucindezela angu-100-300 MPa, negwadle elicijile elifinyelela ngaphezu kuka-300 MPa. Amandla ayo aguquguqukayo ngokuvamile aphakathi kuka-10 no-30 MPa.
Okwesine, i-granite inezinga eliphezulu lokukhiqiza, iyavumelana namasu ahlukahlukene okucubungula, futhi inezici ezinhle kakhulu zokuhlanganisa ama-slab. Ngaphezu kwalokho, i-granite ayinciphisi kalula, okwenza ifanelekele izinjongo zokuhlobisa ngaphandle.
Ukugcina isiteji semabula (i-marble slab) kudinga ukunquma ukubekezelelana nokugcinwa kwezidingo zeplatifomu yamanje yemabula, kanye nokunquma ukuthi indawo yokusebenza iqukethe imigodi. Uma ipulatifomu yemabula inemigodi emincane ebusweni bayo, kufanele ibuyiselwe efektri ukuze icutshungulwe. Uma ukunemba kushintshile kuphela, ukulungiswa kufanele kwenziwe endaweni yokusetshenziswa. Ngemva kwesikhathi eside, ukusetshenziswa njalo, iplatifomu yemabula izoba Uma inkundla yemabula isicaba kakhulu, iphutha lokunemba lizokhula kancane kancane, okuholela ekunembeni okunganembile. Kulokhu, kudinga ukulungiswa.
Izinyathelo zokunakekela izinkundla zemabula:
1. Hlola ukunemba kweplathifomu yemabula bese unquma iphutha layo lamanje.
2. Gaya inkundla yemabula usebenzisa iziqhumane namathuluzi okugaya ukuze ufinyelele izinga elidingekayo.
3. Ukugaya okwesibili kwe-semi-fine yesikhulumi semabula ngemva kokugaya okungalungile ukususa imihuzuko ejulile futhi kufinyelele izinga elidingekayo.
4. Gaya indawo yokusebenza yesikhulumi semabula ukuze ufinyelele ukunemba okudingekayo.
5. Hlola ukunemba kwenkundla yemabula ngemva kokupholishwa, futhi futhi ngemva kwesikhathi esithile.
Isikhathi sokuthumela: Sep-01-2025