نوع مقاله : مقاله پژوهشی
نویسنده
علی قربانی،استادیار،گروه مهندسی عمران،دانشگاه پیام نور،صندوق پستی 3697-19395، تهران،ایران
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسنده [English]
This research investigates the effect of the simultaneous use of microsilica and nanosilica on concrete properties. The primary objective is to evaluate the impact of these combined admixtures on the compressive strength and chloride permeability of concrete. To this end, various mix designs were developed and implemented, including a control concrete, concretes containing different percentages of microsilica and nanosilica separately, and concretes incorporating a combination of both materials. Concrete samples were subjected to compressive strength testing at 7, 28, and 90 days, and chloride permeability tests were also conducted on selected samples at 28 days. The results indicated that the individual use of microsilica and nanosilica leads to improved concrete properties. However, the simultaneous application of these two materials creates synergistic effects, resulting in more significant enhancements in compressive strength and a reduction in chloride permeability of concrete. The optimal combination of 10% microsilica and 1% nanosilica demonstrated the best performance in terms of both properties. This study demonstrates that the simultaneous use of microsilica and nanosilica is an effective approach for producing high-performance and more durable concrete.
کلیدواژهها [English]
)