Carbon Critical Design: Comparison of RE wall and RC viaduct on the Benz Circle Flyover, Andhra Pradesh

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25 Νοε 2013 (πριν από 3 χρόνια και 8 μήνες)

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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 design decision

The calculation



Reinforced

Concrete

Viaduct

(RC)

Flyover

Reinforced

Soil

(RS)

Wall

Flyover



Tonnes

of

Material

T

CO
2
e/T

Tonnes

of

material

T

CO
2
e/T

M
20

Mass

Concrete

24

T

(Footings)

0
.
113

73
T

(Footings

and

anchor

blocks)

0
.
113

M
35

Reinforced

Concrete

1014

T

(Pre

stressed

beams

1
.
25
%

reinforcement

by

volume)

0
.
223

82

T

(Facia

panels

-

0
.
48
%

reinforcement

by

volume)

0
.
121

M
40

Reinforced

concrete


643

(pre
-

stressed

beams

and

crash

barrier)

0
.
308

24

(crash

barrier)

0
.
308

Compacted

Aggregate

381

T

0
.
005

15
,
675

T

0
.
005

Steel

(excluding

concrete

reinforcement)

48

T

(Post

Tensioned

Cables)

2
.
830

14

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.