Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Rock particles protect asphalt from deterioration by ultraviolet rays and provide attractive coloring medium; coloring roofing granules involves crushing and screening selected rock to specified size, mixing granules with pigments, clay, and sodium silicate solution, and firing at temperature necessary to produce insoluble coating.
Rock particles protect asphalt from deterioration by ultraviolet rays and provide attractive coloring medium; coloring roofing granules involves crushing and screening selected rock to specified size, mixing granules with pigments, clay, and sodium silicate solution, and firing at temperature necessary to produce insoluble coating.
Manufacturing roofing granules
Am Cer Soc -- Bul
Weaver, L.W. (Autor:in)
1961
3 pages
Report
Englisch
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| Engineering Index Backfile | 1944
| Engineering Index Backfile | 1935