چکیده مقاله
Concrete cancer, primarily caused by the corrosion of embedded steel reinforcement, threatens the durability and safety of reinforced concrete structures Traditional repair methods often provide only temporary solutions, necessitating more advanced approaches This study introduces an innovative bio concrete system that integrates microbial induced calcium carbonate precipitation MICCP with silica nanoparticles and graphene oxide to enhance mechanical strength and self healing capabilities To optimize resilience, an IoT based smart monitoring system was developed, incorporating wireless sensors and AI algorithms for real time structural health assessment and proactive self healing activation Environmentally compatible encapsulation materials, including chitosan and alginate polymers, were employed to sustain microbial viability, while a hybrid cathodic protection system mitigated reinforcement corrosion The methodology encompassed finite element simulations ABAQUS and ANSYS , laboratory experiments, and field monitoring on the Mir Damad Bridge in Tehran—an urban infrastructure subjected to heavy traffic, pollutants, and fluctuating environmental conditions Numerical modeling indicated stress reductions of up to ۳۰% and a ۶۰% decrease in chloride penetration with nanomaterial enhanced bio concrete Laboratory tests confirmed a ۲۵ ۴% increase in compressive strength and a ۵۶ ۲% reduction in chloride permeability, validated through SEM and XRD analyses Field monitoring revealed a crack healing efficiency of approximately ۹۳% and significantly lower corrosion potentials compared to conventional rehabilitation methods The strong correlation between numerical, laboratory, and field results underscores the effectiveness and real world applicability of bio concrete technology, establishing it as a sustainable solution for long term infrastructure resilience in aggressive urban environments
کلیدواژهها
نویسندگان
Seyed Reza Samaei
Assistant Professor, Faculty of Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
Iraj H.P. Mamaghani
Associate Professor, Department of Civil Engineering, University of North Dakota, Grand Forks, ND, USA iraj
شیوه ارجاع
Samaei، Seyed Reza و Mamaghani، Iraj H.P.،1403،Advanced Bio-Concrete and IoT-Driven Monitoring for Sustainable Mitigation of Concrete Cancer in Reinforced Concrete Structures: A Case Study on the Mir-Damad Bridge،هشتمین کنفرانس بین المللی عمران، معماری، شهرسازی با رویکرد توسعه زیرساخت های شهر�
ارائهشده در
مجموعه مقالات نهمین کنفرانس بین المللی عمران، معماری، شهرسازی با رویکرد توسعه زیرساخت های شهری30 مرداد 1404