The Clays of Wisconsin And Their Uses No. 15
The Clays of Wisconsin And Their Uses No. 15
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The wet-molded bricklets in burn- ing behaved as foUows: 168 THE VLAT8 OF WISCONSIN.
The clay shows a tendency to crack badly in air drying and even in burning and on this account it was worked with diflSculty if used alone and molded either by the stiff or soft-mud process.
It bums steel hard at cone 05 and is of low fusibility. If it is used for brick making it should be worked preferably on a stiff- mud machine, and even then it should be burned to a tempera- ture of not less than cone 05.
J...udging from the bricks that are to be seen in some of the old buildings in Superior the clay when formerly used was prob- ably not burned at as high a temperature even as cone 010.
The chemical analysis of the material gave: Silica(SiO,) 54.36 Alumina (Al.Oj) . . . 13.40 Ferric oxide (Pe.Oj) 7 . 97 Lime(CaO) 3.50 Magnesia (MgO) 1.23 Potash (K,0) 2 16 Soda(NaaO) 1.53 Titanic acid (TiO,) 07 Loss on ignition 16.17 Total 100.39 Total flaxes 36.30 Discussion of physical tests of red-burning surface clays.
What to read after The Clays of Wisconsin And Their Uses No. 15?
You can find similar books in the "Read Also" column, or choose other free books by Ries, Heinrich, 1871-1951 to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The wet-molded bricklets in burn- ing behaved as foUows: 168 THE VLAT8 OF WISCONSIN.
The clay shows a tendency to crack badly in air drying and even in burning and on this account it was worked with diflSculty if used alone and molded either by the stiff or soft-mud process.
It bums steel hard at cone 05 and is of low fusibility. If it is used for brick making it should be worked preferably on a stiff- mud machine, and even then it should be burned to a tempera- ture of not less than cone 05.
J...udging from the bricks that are to be seen in some of the old buildings in Superior the clay when formerly used was prob- ably not burned at as high a temperature even as cone 010.
The chemical analysis of the material gave: Silica(SiO,) 54.36 Alumina (Al.Oj) . . . 13.40 Ferric oxide (Pe.Oj) 7 . 97 Lime(CaO) 3.50 Magnesia (MgO) 1.23 Potash (K,0) 2 16 Soda(NaaO) 1.53 Titanic acid (TiO,) 07 Loss on ignition 16.17 Total 100.39 Total flaxes 36.30 Discussion of physical tests of red-burning surface clays.
What to read after The Clays of Wisconsin And Their Uses No. 15?
You can find similar books in the "Read Also" column, or choose other free books by Ries, Heinrich, 1871-1951 to read onlineMoreLess
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