He maha ngā painga o te muka karāhe, pērā i te kaha me te mama, te ātete ki te waikura, te ātete ki te pāmahana teitei, me te pai o te mahi ārai hiko. Ko tētahi o ngā rauemi hiato e whakamahia whānuitia ana. I taua wā anō, ko Haina hoki te kaihanga muka karāhe nui rawa atu o te ao.
1. He aha te muka karāhe?
He rauemi kore-whakarewa kore-waro te muka karāhe, he tino pai te mahi. He kohuke tūturu me te silica hei rauemi matua, e tāpirihia ana he rauemi mata kohuke waikura whakarewa motuhake. I muri i te whakaranu ōrite, ka rewa i te pāmahana teitei, ā, ka rere te karāhe rewa i roto i te pūwero turuturu. , i raro i te mahi a te kaha kukume tere-teitei, ka kumea, ka whakamatao tere, ka whakapakeke hei muka tino angiangi tonu.
Ko te whānui o te muka muka kotahi mai i te torutoru maikorona ki te rua tekau maikorona, he rite ki te 1/20-1/5 o te makawe. Ko ia paihere o ngā miro muka he rau, he mano rānei ngā muka kotahi.
Ngā āhuatanga taketake o te muka karāhe:
He āhua porotaka te āhua, he maeneene te mata, he porowhita katoa te wāhanga whakawhiti, ā, he kaha te kaha o te wāhanga whakawhiti porowhita ki te pikau kawenga; he iti te ātete ki te hau me te wai, engari he iti te kaha piri o te muka nā te mata maeneene, kāore e pai mō te whakakotahitanga ki te kapia; ko te matotoru i te nuinga o te wā kei roto i te 2.50-2.70 g/cm3, ko te nuinga kei runga i te hanganga karāhe; he teitei ake te kaha kume i ētahi atu muka taiao me ngā muka hangai; he iti rawa te roa o te rauemi pakarukaru i te whati; he pai ake te ātete ki te wai me te waikawa, engari he iti te ātete ki te kawakore. He rerekētanga.
2. Te Whakarōpūtanga omukakarāhe
Mai i te whakarōpūtanga roa, ka taea te wehewehe ki te muka karāhe tonu, te muka karāhe poto (muka karāhe roa pumau) me te muka karāhe roa (LFT).
3. Te whakamahinga o te muka karāhe
He kaha te kaha kume o te muka karāhe, he ngāwari te whakarerekētanga, he kore mura, he ātete matū, he iti te mimiti wai, ā, he pai te mahi tukatuka. He whānuitia te whakamahinga i roto i ngā mara maha.
E whā ngā wāhanga o te muka karāhe o tāwāhi e ai ki te whakamahinga o te hua: ngā rauemi whakapakari mō ngā kirihou whakamahana whakakaha, ngā rauemi whakapakari muka karāhe mō ngā kirihou whakamahana, ngā rauemi whakapakari sima gypsum, ngā rauemi kakahu muka karāhe, e 70-75% o ēnei rauemi whakapakari, e 25-30% ngā rauemi kakahu muka karāhe. Mai i te tirohanga o te tono mō te hekenga, e 38% te nui o ngā hanganga (tae atu ki ngā paipa, te tango tote wai, te whakamahana me te ārai wai o te whare, te tiaki wai, me ētahi atu), e 27-28% te nui o ngā waka (ngā waka tere, ngā motuka, te tereina tere, me ētahi atu), ā, e 17% te nui o ngā hikohiko.
Hei whakarāpopototanga, ko ngā mara tono o te muka karāhe ko te kawe waka, ngā rauemi hanga, te ahumahi hiko, te ahumahi mīhini, te ahumahi hinu matū, te ahurea whakangahau me te hangarau tiaki whenua.
Wā tuku: Pipiri-20-2022
