Title :
Effect of additives on the properties of concrete products made from iron ore tailings
Author :
Niu, Xiaoqing ; Chen, Jichun
Author_Institution :
Dept. of Environ. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
It was found that iron ore tailings could be mixed with cement and fly ash at appropriate ratios to make concrete products that possess certain compressive and flexural strengths. Based on such findings, several additives have been studied to improve the properties of the concrete products. Of these, the additive FN significantly improved the early age strength of the products while positively impacting the final strength when used at a low dosage. This was attributed to the improved hydration properties and formability of the products when FN was used.
Keywords :
additives; bending strength; cements (building materials); compressive strength; concrete; durability; fly ash; industrial waste; mineral processing industry; mixing; additive FN; cement; compressive strength; concrete products; early age strength; final strength; flexural strength; fly ash; formability; hydration properties; iron ore tailing; Concrete; Minerals; Three dimensional displays; additives; concrete products; iron ore tailings; strength;
Conference_Titel :
Water Resource and Environmental Protection (ISWREP), 2011 International Symposium on
Conference_Location :
Xi´an
Print_ISBN :
978-1-61284-339-1
DOI :
10.1109/ISWREP.2011.5893361
