The world continues to use more and more cement each year, and North America is ahead of the curve when it comes to cement consumption growth. A new report from the Portland Cement Association had good news for aggregate producers: Global ...
A geologist’s primer on issues uncovered throughout his 40-year career. by Bill Langer ag-ri-geyt (noun) — Particles of rock or inorganic manufactured material which when brought together in a bound or unbound condition form part or whole of a building or civil ...
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