Rock Products

AUG 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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54 • ROCK products • August 2019 Aggregates Industry Almanac Aggregates Production alphabetical order, Alabama, Kentucky, Missouri, Ohio and Texas. Major markets for lime were, in descending order of con- sumption, steelmaking, chemical and industrial applications (such as the manufacture of fertilizer, glass, paper and pulp, and precipitated calcium carbonate, and in sugar refining), flue gas treatment, construction, water treatment, and non- ferrous mining. Gypsum – In 2018, domestic production of crude gypsum was estimated to be 21 million tons with a value of about $168 million. The leading crude gypsum-producing states were Colorado, Iowa, Kansas, Nevada, Oklahoma and Texas, which together accounted for an estimated 67% of total output. Overall, 47 companies produced or processed gypsum in the United States at 50 mines in 16 states. The majority of domestic consumption, which totaled approximately 48 mil- lion tons, was used by agriculture, cement production, and manufacturers of wallboard and plaster products. Small quantities of high-purity gypsum, used in a wide range of industrial processes, accounted for the remaining tonnage. At the beginning of 2018, the production capacity of oper- ating wallboard plants in the United States was about 33.4 billion sq. ft. per year. Total wallboard sales were estimated to be 25.5 billion sq. ft. Midwestern Industries, Inc. "The Sizing People" ® MEV ® TOLL FREE 877 - 4 - SIZING (877 - 474 - 9464) Screening Equipment Wire Cloth Replacement Parts Emergency Shipping Visit: Replacement Screen Panels U.S. Aggregates Production

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