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Page 86 of 123 ROCK products • August 2018 • 85 Aggregates Industry Almanac Agg Industry Market Report Aggregates Materials Industry results in Q1 2018 showed decreases in volume compared to the same period in 2017 for cement (0.7 percent) and crushed stone (2.3 percent), while sand & gravel volume increased (6.5 percent). Additionally, ready-mix concrete and asphalt both experienced increases in prices when compared to the prior-year period. Cement 4 • Portland cement consumption [16.8 million metric tons (Mt)] decreased by 0.7 percent in Q1 2018 compared to Q1 2017. •  The average net selling price per ton for Martin Marietta and Eagle Materials in Q1 was $107.90, an increase of 0.4 percent over the prior quarter and a 3.4 percent increase over the same period in 2017. Source: US Geological Survey

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