Hoʻokaʻawale ʻia nā brick alumina kiʻekiʻe e ka maʻiʻo alumina i: Papa III (Al₂O₃: 48–65%), Papa II (Al₂O₃: 65–75%), Papa I (Al₂O₃: 75–80%), a me ka Papa Kūikawā (Al₂O₃ like me 80 a i ʻole%) like.
Hoʻokaʻawale ʻia lākou e ke ʻano o ka kiln i hoʻohana ʻia i loko o: nā pōhaku alumina kiʻekiʻe -paʻa paʻa no nā kiln sima, nā pōhaku lepo haʻahaʻa-kiʻekiʻe-alumina no nā kapuahi wela, a me nā pōhaku lepo phosphate-kiʻekiʻe-alumina no nā kiln rotary, zinc oxide (hoʻohana ʻia no ka hana ʻana i nā ceramsite).
Ma muli o ke ʻano a me nā ana, loaʻa iā lākou nā pōhaku -ʻano pahi, koʻi-a me ke ʻano wili-a me nā pōhaku kiʻekiʻe -alumina skew a me nā pōhaku heleuma.
Hoʻokomo pū ʻia nā ʻano i nā pōhaku maʻamau, nā pōhaku ʻano, a me nā pōhaku ʻano kūikawā.