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LAMPIRAN J.1<br />

KEGUNAAN BAHAN TANAH LIAT DALAM BADAN KERAMIK<br />

Bahan Kegunaan<br />

Kaolin Sumber pewarna<br />

putih, tahan<br />

terhadap<br />

temperature tinggi<br />

Ball clay Penambah<br />

plastisitas<br />

Fire clay Pengisi, sumber<br />

pewarna, sumber<br />

butiran, bahan<br />

pengeras/penguat<br />

Earthenware Sumber pewarna,<br />

bahan pengisi<br />

Bentonite Penambah<br />

plastisitas<br />

Pewarna<br />

(Iron,<br />

Ilminite)<br />

Flux<br />

(feldspar)<br />

Flint<br />

(kwarsa)<br />

Persentase<br />

Earthenware Stoneware Porselin<br />

0 – 20 0 – 30 10 – 50<br />

0 – 30 0 – 30 0 - 30<br />

0 – 20 0 – 35 -<br />

0 – 80 0 – 40 -<br />

0 – 5 0 – 5 0 – 5<br />

Sumber pewarna,<br />

pembuat tekstur 0 – 10 0 – 10 -<br />

Bahan pengkaca<br />

Bahan pengeras<br />

dan penguat<br />

Grog (pasir) Bahan pengeras<br />

dan penguat,<br />

pembuat pori-pori<br />

badan <strong>keramik</strong><br />

(sumber: John W. Conrad)<br />

0 – 30 0 – 20 10 – 30<br />

0 – 25 0 – 20 20 – 25<br />

0 – 10 0 – 15 0 – 5

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