Recycling of industrial waste and performance ofsteel slag green concrete

来源期刊：中南大学学报(英文版)2009年第5期

论文作者：李云峰 姚燕 王玲

文章页码：768 - 773

Key words：concrete; steel slag; mechanical properties; durability; alkali aggregate reaction

Abstract: Workability and mechanical properties of steel slag green concrete with different types of steel slag and different dosages of admixtures were investigated. The effectiveness of steel slag powder on suppressing alkali aggregate reaction (AAR) expansion was assessed using the method of ASTM C441 and accelerated test method. Experimental results show that mechanical properties can be improved further due to the synergistic effect and mutual activation when compound mineral admixtures with steel slag powder and blast-furnace slag powder are mixed into concrete. In addition, about 50% decrease in expansion rate of mortar bars with mineral admixtures can be achieved in AAR tests. Mineral admixtures with steel slag powder as partial replacement for Portland cement in concrete is an effective means for controlling expansion due to AAR.

基金信息：the National Science and Technology Pillar Program during the 11th Five-Year Plan Period of China
the Science and Technology Program of Qingdao City, China