INVESTIGATION ON THE PERFORMANCE OF GRADED SLAG CEMENTS

摘要：

　　This study investigates the compressive strength and autogenous shrinkage of graded slag cement-based materials.The slag cements prepared separately by using the fine, middle and coarse fractions of blast furnace slag (BFS) to replace the fine, middle and coarse fractions of Portland cement are defined as graded slag cements.The compressive and flexural strengths of slag cement mortars, and the chemical shrinkages and autogenous shrinkages of slag cement pastes were determined by experiments.The hydration of slag cements were simulated by HYMOSTRUC3D.The results indicate that the graded slag cement blended with fine BFS exhibits low autogenous shrinkage of paste at 3 days, and high compressive strength of mortar at 28 days.The particle size distributions of graded slag cements were changed, which altered the hydration process.In consequence, the performance of graded slag cement was optimized.

关键词： blast furnace slag autogenous shrinkage compressive strength cement

作者: Peng Gao Guang Ye Jiangxiong Wei Qijun Yu

作者单位: School of Materials Science and Engineering, South China University of Technology,510640, Guangzhou, Microlab, Faculty of Civil Engineering and Geosciences, Delft University of Technology, 2628 CN Delf School of Materials Science and Engineering, South China University of Technology,510640, Guangzhou,

会议类型: 国际会议

会议名称: The 3rd International Conference on Service Life Design for Infrastructure(2014第三届基础设施服役寿命设计国际会议)

会议地点: 珠海

会议语种:英文

页码: 151-163

在线出版日期: 2014-10-15（万方平台首次上网日期，不代表论文的发表时间）