Rock Products

APR 2019

Rock Products is the aggregates industry's leading source for market analysis and technology solutions, delivering critical content focusing on aggregates-processing equipment; operational efficiencies; management best practices; comprehensive market

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20 • ROCK products • April 2019 Market Composite E ach year, the U.S. Geological Survey releases its Mineral Commodity Summaries report. Published on an annual basis, this report provides industry data for more than 90 individual minerals and materials. For the Rock Products Market Composite, we took data from six commodity segments – crushed stone, construction sand and gravel, industrial sand, cement, lime and gypsum – and combined it to calculate a market tonnage total. For 2018, The Rock Products Market Composite is 2.616 bil- lion tons of material produced. That is compared to 2.448 billion tons of material produced in 2017, an approximate 6 percent increase. Here is market data by commodity segment: Crushed Stone In 2018, 1.40 billion tons of crushed stone valued at more than $16.6 billion was produced by an estimated 1,465 companies operating 3,710 quarries and 176 sales and (or) distribution yards in 50 states, an increase of 3 percent com- pared with that of 2017. Leading states were, in descending order of production, Texas, Pennsylvania, Florida, North Carolina, Ohio, Missouri, Georgia, Virginia, Tennessee and Illinois, which together accounted for more than one-half of the total crushed stone output. Of the total domestic crushed stone produced in 2018, about 68 percent was limestone and dolomite; 15 percent, granite; 6 percent, traprock; 5 percent, miscellaneous stone; 4 per- cent, sandstone and quartzite; and the remaining 2 percent was divided, in descending order of tonnage, among marble, volcanic cinder and scoria, calcareous marl, slate, and shell. It is estimated that of the 1.5 billion tons of crushed stone consumed in the United States in 2018, 75 percent was used as construction material, mostly for road construction and maintenance; 13 percent for cement manufacturing; 7 per- cent for lime manufacturing; 3 percent for other chemical, special, and miscellaneous uses and products; and 2 percent for agricultural uses. Construction Sand and Gravel Construction sand and gravel production was about 970 million tons in 2018, an increase of 8 percent compared with that of 2017. Demand for construction sand and gravel increased in 2018 because of growth in the private and public construction markets, especially after this segment was flat during the past 2 years. Commercial and heavy-industrial construction activity, infrastructure funding, new single-fam- ily housing unit starts, and weather affect growth in sand and gravel production and consumption. Long-term increases in construction aggregates demand will be influenced by activity in the public and private con- struction sectors, as well as by construction work related to security measures being implemented around the nation. The underlying factors that would support a rise in prices of construction sand and gravel are expected to be present in The Rock Products Market Composite We Analyzed the Cumulative Production of the Major Nonmetallic Minerals Segments in 2018 and Compared it to 2017. By Mark S. Kuhar

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