Influence of Aggregate Coated with Modified Sulfur on the Properties of Cement Concrete
AbstractThis paper proposes the mixing design of concrete having modified sulfur-coated aggregate (MSCA) to enhance the durability of Portland cement concrete. The mechanical properties and durability of the proposed MSCA concrete were evaluated experimentally. Melting-modified sulfur was mixed with aggregate in order to coat the aggregate surface at a speed of 20 rpm for 120 s. The MSCA with modified sulfur corresponding to 5% of the cement weight did not significantly affect the flexural strength in a prism concrete beam specimen, regardless of the water-cement ratio (W/C). However, a dosage of more than 7.5% decreased the flexural strength. On the other hand, the MSCA considerably improved the resistance to the sulfuric acid and the freezing-thawing, regardless of the sulfur dosage in the MSCA. The coating modified sulfur of 5% dosage consequently led to good results for the mechanical properties and durability of MSCA concrete. View Full-Text
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Lee, S.-H.; Hong, K.-N.; Park, J.-K.; Ko, J. Influence of Aggregate Coated with Modified Sulfur on the Properties of Cement Concrete. Materials 2014, 7, 4739-4754.
Lee S-H, Hong K-N, Park J-K, Ko J. Influence of Aggregate Coated with Modified Sulfur on the Properties of Cement Concrete. Materials. 2014; 7(6):4739-4754.Chicago/Turabian Style
Lee, Swoo-Heon; Hong, Ki-Nam; Park, Jae-Kyu; Ko, Jung. 2014. "Influence of Aggregate Coated with Modified Sulfur on the Properties of Cement Concrete." Materials 7, no. 6: 4739-4754.