![]() These specifications are continually being upgraded. Based on materials research by the Kansas Department of Transportation (KDOT) and other entities, KDOT has developed specifications for acceptable aggregate in concrete. ![]() The fine material from the crushing operations is often saved and sold to local farmers as agricultural lime (actually calcium carbonate).ĭuring early highway-construction projects, most limestones along the river corridor were used for aggregate. Because of limestone's availability and suitability, most unpaved roads in eastern Kansas are covered with crushed limestone. Sand and gravel and crushed stone are naturally occurring and are the two main types of aggregate used in Kansas for a variety of construction work. For industrial mineral purposes, aggregate is used to describe any hard, inert material used for mixing with a cementing or bituminous material to form concrete, mortar, asphalt, or similar product, or used alone, as in railroad ballast, road covering, or fill. The crushed limestone is mostly used for aggregate in concrete and asphalt and for road surfaces. Many different limestone members, located near the river, have been used as resources for crushed stone, and a few limestones have been used for building stone. The limestones are by far the most important from an economic standpoint. ![]() The Kansas River has cut through many limestones, shales, clays, and occasional sandstones of Upper Pennsylvanian age in the lower or eastern portions of the valley and Lower Permian age in the upper or western portions of the valley. Grisafe, Kansas Geological Survey Limestone Resources Current and Potential Uses Land Use, Economic Geology, and Hydrologyĭavid A. KGS-Kansas River Corridor-Economic ResourcesĬhapter 2 of The Kansas River Corridor-Its Geologic Setting, ![]()
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