Ceramics is one of the oldest crafts in the face of the earth. This can be witnessed in the discovery of archaeological objects embedded in the ground. One type of the objects that are found objects such as ceramic containers: jars, drinking utensils, tools and other offerings; in addition to the discovery of objects-made of stone and metal. Forms are ...
Read More »Clay Structure
Comparison of large granules and granular clay particles will affect plasticity, dry strength, shrinkage, porosity, and the character of the object after being burned. Fine structure (plastic): clay Coarse structure (not plastic): sand Comparison of clay (clay), soil sediment (silt) and sand (sand) can be seen in the figure below. Figure 6.17. Comparison between clay, soil sediments, and sand ...
Read More »Drawing Ornaments Traditional and Classic
History shows that human life perkembnagan art of reasoning is in line with the development of the view of human life. This is evidenced by the hereditary cultural heritage, including the ornamnen art or decorative art that is able to live and thrive in the community and provide benefits to human life. Art is an expression of feeling ornaments are ...
Read More »Pengujian Plastisitas Clay Body
Pengujian plastisitas tanah liat bertujuan untuk mengetahui sifat fisik tanah liat. Plastisitas atau sifat plastis adalah suatu sifat tanah liat yang mampu mempertahankan bentuk akhir walaupun proses pembentukan telah selesai. Dengan kata lain, tanah liat tersebut mempunyai sifat dapat dibentuk dengan teknik manual maupun masinal dengan menggunakan daya pembentuk, bila tenaga pembentuk dihentikan, bentuk akhir masih dapat bertahan. Tingkat plastisitas ...
Read More »History of Ceramics
Ceramic is a product of the oldest crafts in recorded human civilization and culture. According to history, ceramics are well known by people in East Africa 2.6 million years ago (Paleolithic Age). But the development of ceramic spread in almost all regions of the world just happened at the time of the Neolithic or approximately 15 thousand to 10 thousand ...
Read More »Menggunakan Bahan Kimia Yang Aman
a. Membaca label pembungkus dan mengikuti petunjuknya. b. Pastikan bahwa pembungkus itu tidak bocor atau rusak. c. Pastikan bahwa label pada pembungkus benar. d. Pastikan bahwa botol yang dipakai adalah benar e. Petugas harus memakai alat pelindung seperti masker, sarung tangan, kaca mata debu bila perlu. f. Jangan mencampur bahan kimia. g. Ammoniak tidak boleh dicampur dengan chlorine. h. Multi ...
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