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ÌṢERÉ
ÀYÍKÁ
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REVERSE ENGINEERING
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ÀWỌN OHUN WÍWỌ̀
Grog from Fired Clay
Grog is clay that has already been fired and then crushed. Mixed into raw clay it opens the body, cuts shrinkage and cracking, and lets steam out as the piece dries and fires, which is why crucibles, kiln bricks and big pots are full of it. It is made by firing lumps of the same refractory clay, or by crushing broken unglazed pots.
Olùbẹ̀rẹ̀
A day, plus a kiln firing
Ìlànà
1
1
Make lumps
Make lumps
Wedge refractory clay into fist-sized lumps and let them dry completely.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Amọ̀ Tí Ń Fara Da Iná10 kg
Omi1 lítàÀwọn irinṣẹ́ tí a nílò:
Ìgbá àdàpọ̀2
2
Fire them
Fire them
Fire the dry lumps in the kiln, raising the heat slowly at first so they do not burst.
Àwọn irinṣẹ́ tí a nílò:
Ìléru Ìsun
Pirómítà
Ohun èlò inú ààrò seramiki3
3
Crush
Crush
Put the cold lumps in a sack and break them with the sledgehammer; finish small pieces in the mortar. Wear a dust mask and glasses.
Àwọn irinṣẹ́ tí a nílò:
Àpò ọ̀gbọ̀ rẹ́gẹdẹ
Òòlù ńlá
Odó àti Ọmọ Odó
Ìbòjú Eruku
Gíláàsì ààbò4
4
Sieve into sizes
Sieve into sizes
Sieve through the graded sieves and keep each size apart: coarse grog for bricks, fine grog for crucibles and thin pots. Re-crush what is too big.
Àwọn irinṣẹ́ tí a nílò:
Àkójọ ajọ̀ (ihò onípele)Ìbòjú Eruku5
5
Store dry
Store dry
Store each size in its own lidded bucket, labelled with the clay and firing it came from.
Àwọn irinṣẹ́ tí a nílò:
Garawa irin pẹ̀lú ìbòÀwọn irinṣẹ́ tó nílò
11- Àyè
- Àyè
- Àyè
- Àyè
- Àyè
- Àyè
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