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Whāriki Ngira muka parata ātete pāmahana teitei mō te whakamarumaru wera me te oro
He muka ngira paratati
Ko te muka basalt ngira-wiri, e mōhiotia ana ko te papanga kore-whatu muka basalt, he momo rauemi kore-whatu i hangaia mai i ngā muka basalt tonu e honoa ana mā te miihini, e werohia ana rānei mā te ngira. He rauemi maha-whakamahinga me te whānuitanga o ngā whakamahinga nā ōna āhuatanga ahurei.
Āhuatanga Hua
1. Kaha Teitei: He kaha teitei te kume o te muka parata i werohia ki te ngira, e whakarato ana i ngā āhuatanga miihini me te hanganga pai rawa atu.
2. Ātete Ahi: He tino ātete ahi ngā muka o te papare, ā, he pai te huruhuru ngira mō ngā mahi e hiahia ana kia tiakina te ahi.
3. Ārai Wera: He pai ngā āhuatanga ārai wera o te muka ngira o te muka parata, e ātete ana ki te wera me te pumau o te pāmahana.
4. Ātete Matū: He ātete ngā muka o te papare ki ngā matū maha, ā, he pai te huruhuru ngira mō ngā mahi i roto i ngā taiao waikura.
5. Mimi Oro: He āhuatanga mimiti oro te muka parata i werohia ki te ngira, ā, he mea whai hua mō ngā mahi whakaiti haruru.
2. Ātete Ahi: He tino ātete ahi ngā muka o te papare, ā, he pai te huruhuru ngira mō ngā mahi e hiahia ana kia tiakina te ahi.
3. Ārai Wera: He pai ngā āhuatanga ārai wera o te muka ngira o te muka parata, e ātete ana ki te wera me te pumau o te pāmahana.
4. Ātete Matū: He ātete ngā muka o te papare ki ngā matū maha, ā, he pai te huruhuru ngira mō ngā mahi i roto i ngā taiao waikura.
5. Mimi Oro: He āhuatanga mimiti oro te muka parata i werohia ki te ngira, ā, he mea whai hua mō ngā mahi whakaiti haruru.
Whakatakotoranga Hua
| Matotoru (mm) | Whānui (mm) | Te Matotoru o te Papatipu (g/cm3) | Te Matotoru o te Rohe (g/m2) | Te roa o te rōra (mita) |
| 6 | 1000 | 100-200 | 500 | 40 |
| 8 | 1000 | 140-200 | 750 | 30 |
| 10 | 1000 | 140-200 | 950 | 30 |
| 25 | 1000 | 140-200 | 1750 | 20 |
Te tono hua
Ka taea te whakamahi whānuitia i roto i te ārai haruru, te mimiti haruru, te mimiti ru, te aukati mura, te tātari, te tiaki wera me ētahi atu mara.
1. Pūnaha tātari me te purenga hau matatau
2. ngā pūnaha tātari, ngongo-oro, ārai-wera me te ngongo-ru i roto i te umanga hikohiko
3. pūnaha tātari hau me te paoa paitini me te kino i roto i te umanga matū
4. Pūwero waea pūkoro
5. ngā pūnaha whakamahana me te ārai i te hau mō ngā kaipuke me ngā poti.
