Sustainable sulfur composites with enhanced strength and lightweightness using waste rubber and fly ash

详细信息    查看全文

• 作者：Seongwoo Gwon^a ; Yeonung Jeong^b ; Jae Eun Oh^a ; ^{ohjaeeun@unist.ac.kr} ; Myoungsu Shin^a ; ^{msshin@unist.ac.kr}
• 关键词：Sulfur polymer concrete ; Sulfur composites ; Modified sulfur ; Waste rubber ; Fly ash ; Microstructure
• 刊名：Construction and Building Materials
• 出版年：2017
• 出版时间：15 March 2017
• 年：2017
• 卷：135
• 期：Complete
• 页码：650-664
• 全文大小：8044 K
• 卷排序：135

文摘

The highest strength was achieved when 50% of modified sulfur was replaced by fly ash. With more than 40% fly ash, the microstructure of sulfur matrix was completely changed. At a low ratio of fly ash, the use of 5–10% rubber powder enhanced the strength of sulfur composites. Sulfur mortars with 5–10% sand showed lower strengths than sulfur composites with rubber powder. The sulfur composites had very low porosities, and the use of fly ash reduced the porosity.