Proceedings of the second forum on geology of industrial minerals: March 31 and April 1, 1966

详细信息   推荐本文 |

• 主题词：Symposium on Geology of Cement Raw Materials
• 责任者：Indiana University.
• 责任方式：Written
• 出版者：Indiana Univ.
• 出版年：1900
• 出版地：Bloomington, Indiana
• 出版日期：1900/1/1 0:00:00
• 分类号：433
• 语言：English

摘要

Cement is one of those basic commodities Americans take for granted as they do air and water, The raw materials required for its manufacture are largely common rocks, limestone and shale, and it would seem that geological skills are unnecessary to find new reserves. Perhaps only the most casual knowledge of geology would have been adequate to keep the cement plants operating at capacity for the indefinite future if cement technology and world population had leveled off in 1940.