Carbon Critical Design: Comparison of RE wall and RC viaduct on the Benz Circle Flyover, Andhra Pradesh Adrian Anderson, General Manager Nehemiah Reinforced.

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Presentation transcript:

Carbon Critical Design: Comparison of RE wall and RC viaduct on the Benz Circle Flyover, Andhra Pradesh Adrian Anderson, General Manager Nehemiah Reinforced Soils (India) Pvt Ltd.

Introduction The design decision The calculation The results Conclusion

Introduction

The design decision

The calculation Reinforced Concrete Viaduct (RC) Flyover Reinforced Soil (RS) Wall Flyover Tonnes of MaterialT CO 2 e/TTonnes of materialT CO 2 e/T M20 Mass Concrete 24 T (Footings) T (Footings and anchor blocks) M35 Reinforced Concrete 1014 T (Pre stressed beams 1.25% reinforcement by volume) T (Facia panels % reinforcement by volume) M40 Reinforced concrete 643 (pre- stressed beams and crash barrier) (crash barrier)0.308 Compacted Aggregate 381 T ,675 T0.005 Steel (excluding concrete reinforcement) 48 T (Post Tensioned Cables) T (soil reinforcing bars within backfill) 2.68

The Results RS=0.36xRC

Conclusions Move from Cost Critical to Carbon Critical Design Informed Design decisions Simple calculation to make Some local adaption required

Thank you Adrian Anderson, General Manager Nehemiah Reinforced Soils (India) Pvt Ltd.