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{"id":1889,"date":"2023-12-02T03:27:42","date_gmt":"2023-12-01T20:27:42","guid":{"rendered":"http:\/\/www.tneutron.net\/blogs\/porositas\/"},"modified":"2023-12-01T10:28:56","modified_gmt":"2023-12-01T03:28:56","slug":"porositas","status":"publish","type":"post","link":"https:\/\/www.tneutron.net\/blogs\/porositas\/","title":{"rendered":"Porositas"},"content":{"rendered":"
\n

Sifat poros tanah liat merupakan sifat penyerapan air oleh badan benda keramik atau bisa dikatakan tingkat kepadatan badan benda keramik setelah dibakar. Sifat porositas sangat penting karena dengan adanya sifat ini akan memungkinkan penguapan air pembentuk maupun air selaput keluar pada waktu proses pengeringan dan pembakaran. Dalam poses pengglasiran sifat ini juga berpengaruh terhadap penyerapan bahan glasir pada benda keramik sehingga akan memiliki daya rekat sebelum proses pembakaran glasir dilaksanakan.<\/p>\n

Sifat porositas sangat dipengaruhi oleh kasar dan halusnya partikel-partikel tanah liat yang membentuk badan keramik. Tanah liat mengandung partikel- partikel pembentuk tanah yang terdiri dan partikel halus dan partikel kasar. Perbandingan dan besar butir dalam tanah sangat mempengaruhi sifat tanah tersebut.<\/p>\n

Tanah liat plastis pada umumnya mengandung partikel yang lebih halus sehingga susut kering dan susut bakarnya akan tinggi dan hal ini juga berpengaruh terhadap porositasnya, tanah liat plastis cenderung memiliki sifat porositas yang rendah, sebailknya tanah liat yang kurang plastis susut kering dan susut bakarnya rendah sehingga porositasnya tinggi<\/p>\n

Tanah liat harus cukup porous, agar:<\/p>\n<\/div>\n