To decrease the cement and SF content of RPC by using ultra-fine fly ash (UFFA) and steel slag powder (SS), the effect of these mineral admixtures on compressive strength of RPC were investigated. The experimental...To decrease the cement and SF content of RPC by using ultra-fine fly ash (UFFA) and steel slag powder (SS), the effect of these mineral admixtures on compressive strength of RPC were investigated. The experimental results indicate that the utilization of UFFA and SS in RPC is feasible and has prominent mechanical performance. The microstructure analysis (SEM and TG-DTG-DSC) demonstrated that the excellent mechanical properties of RPC containing SS and UFFA were mainly attributed to the sequential hydration filling effect of the compound system.展开更多
The physical properties, grading stability and application stability of the steel slag special fine aggregate (diameter≤0. 8mm) at Baosteel were analyzed in this study, and the mechanical and working properties wer...The physical properties, grading stability and application stability of the steel slag special fine aggregate (diameter≤0. 8mm) at Baosteel were analyzed in this study, and the mechanical and working properties were studied when the aggregate was applied to concrete. The: result shows that the aggregate has special advantages of hardness and wear-resistance, so it can be used as an excellent road surface material. The concrete mixed with the steel slag special fine aggregate exhibits good mechanical properties and working properties,which is safe and reliable.展开更多
基金Funded by the Guide Project in National Science & Technology Pillar Program during the 10th Five-Year Plan Period (2003BA652C)
文摘To decrease the cement and SF content of RPC by using ultra-fine fly ash (UFFA) and steel slag powder (SS), the effect of these mineral admixtures on compressive strength of RPC were investigated. The experimental results indicate that the utilization of UFFA and SS in RPC is feasible and has prominent mechanical performance. The microstructure analysis (SEM and TG-DTG-DSC) demonstrated that the excellent mechanical properties of RPC containing SS and UFFA were mainly attributed to the sequential hydration filling effect of the compound system.
文摘The physical properties, grading stability and application stability of the steel slag special fine aggregate (diameter≤0. 8mm) at Baosteel were analyzed in this study, and the mechanical and working properties were studied when the aggregate was applied to concrete. The: result shows that the aggregate has special advantages of hardness and wear-resistance, so it can be used as an excellent road surface material. The concrete mixed with the steel slag special fine aggregate exhibits good mechanical properties and working properties,which is safe and reliable.