Table 7 Rating results for Delphi and Kendall’s coefficient of concordance in round 03 survey

Frameworks/Practices/Models/Tools

Design Framework

A1

Closed loop of the flow of construction material/elements

4

0.5

1

146

1

A2

R principles Adoption

5

0.25

0

232

3

A3

CE strategies at all levels

4

0.73

1

260

4

A4

Stakeholder Collaboration

4

0.67

1

428

13

A5

Design Guidelines

4

0.61

1

194

2

CE Practices

B1

Design for Disassembly

5

0.5

1

307

5

B2

Adaptability

4

0.48

1

313

6

B3

Design for Multiple Use

4

0.51

0

334

7

B4

Flexibility & Resilience

4

0.51

1

357

9

B5

Demountable Components

4

0.38

0

739

21

Building Life Cycle Stages

Predesign/Design Stage

C1

Modular/Prefabricated Buildings

4

0.61

1

426

12

C2

Adaptive Reuse

4

0.41

0

431

14

C3

Design Out Waste

4

0.48

0

425

11

C4

Designing in Layers

4

0.53

0

348

8

C5

CE Consultant

4

0.38

0

1710

61

C6

Green Design Methods

4

0.51

1

789

22

Manufacturing Stage

D1

Durability/Longevity

4

0.49

0

610

18

D2

Circular Supply Chain

4

0.73

1

598

17

D3

Use of Renewable Energy Sources

4

0.47

1

553

15

D4

Circular Labels by Professional bodies

4

0.4

0

1449

51

D5

Developed Transport Systems

4

0.56

1

1479

52

D6

Matching of Supply & Demand of Reused/Recycled Components

4

0.67

1

1502

54

Construction Stage

E1

Reuse of materials in new construction

5

0.49

1

576

16

E2

Building Construction Methods

4

0.57

1

871

25

E3

Circular Procurement of materials

4

0.53

0

656

20

E4

Use of skilled local workforce

4

0.5

1

1691

60

E5

Fixing and Material Technology as per CE

4

0.48

1

1648

59

E6

Increase in performance of building materials

4

0.63

1

644

19

E7

Safe storage of construction materials at site

4

0.51

1

1390

49

Operation/Use Stage

F1

State of building materials during use and EoL

4

0.51

1

1835

64

F2

Use and Modalities for Operation in line with CE

4

0.48

1

1899

67

End of Life

G1

Design for Demolition

4

0.48

1

1076

35

G2

Selective Deconstruction

4

0.4

0

1075

34

G3

Reuse Potential

4

0.5

1

1029

31

G4

Recycling Potential

4

0.45

0.75

1050

32

G5

Adaptive Reuse Potential

4

0.51

1

1074

33

G6

Building Restoration

4

0.51

1

1096

36

G7

Advanced Recycling Technologies

4

0.51

1

1152

37

G8

Recycling Rate & Targets

4

0.51

1

1481

53

G9

Circularity Score

4

0.48

1

1378

48

G10

Recycled Product Demand

4

0.35

0

1363

47

Construction & Demolition Waste Management

Waste Reduction

H1

Prediction of waste to be generated at early design phases

4

0.51

1

1220

41

H2

Design for reuse and recovery

4

0.48

1

1182

38

Waste Management

I1

Local level waste management company

4

0.48

1

1204

40

I2

C&DWM Tools

4

0.5

1

1313

44

I3

Quality of C&DW

4

0.5

1

1396

50

I4

Standards & Specifications towards use of CDW

4

0.5

1

1199

39

I5

Training & Surveillance practices related to C&DWM

4

0.51

1

1540

55

Building Materials/Elements

Selection of Material

J1

Use of recycled materials

4

0

0

918

28

J2

Use of natural/bio-based materials

4

0.51

1

850

24

J3

Use of secondary building materials

4

0.47

1

911

27

J4

Use of locally available materials

4

0.51

1

838

23

J5

Use of waste from other industries as raw materials

4

0.61

1

985

30

Flow of Materials/Components

K1

Circular Material Library

4

0.45

0.75

910

26

K2

Supply & demand of salvaged building materials/components

4

0.5

1

1720

63

K3

Supply & demand of secondary building materials/components

4

0.57

1

1718

62

Green Building Standards/Certification System

L1

Building Certification System

4

0.35

0

1618

58

L2

Certification System of Reused/Recycled Materials/components

4

0.57

1

1600

57

Governance System and Institutional & Regulatory Framework

Governance Capacity

M1

Subsidies and Tax relaxation for CE strategies

4

0.47

1

1970

71

M2

Financial Incentives

5

0.63

1

1954

69

M3

Demolition taxes, tax raise on use of virgin materials

4

0.57

1

1963

70

Institutional & Regulatory Framework

N1

Flexibility in existing building codes and regulations

4

0.49

1

1848

65

N2

Incorporation of CE in building codes

5

0.48

1

1880

66

N3

Effective C&DWM Regulations

5

0

0

365

10

N4

National & Regional level CE Action Plans

4

0.53

0

2085

72

Others

Socio-Cultural

O1

Skilled and Informed Workers and Sub-contractors

4

0.48

0

1929

68

O2

Knowledgeable Designer

4

0.49

1

2177

77

O3

Public Awareness and Willingness to Change

5

0.43

0

2112

73

O4

Educated Client and willingness of the Client to spend more for CBD

4

0.53

1

2122

74

O5

Integration of CE in university curriculum at all levels

4

0.51

1

2239

78

O6

Provision of CE training and knowledge exchange programs

4

0.38

0

2159

76

O7

End User Perception

4

0.5

1

2127

75

Financial

P1

Presence of a Circular Business Model

5

0.49

1

1347

45

P2

Life Cycle Costing

4

0.48

1

1547

56

P3

Low-cost Materials and Technologies

4

0.48

0

959

29

P4

Cost Effective Recycling Solution

4

0.47

1

1249

42

Environmental Performance

Q1

Life Cycle Assessment

4

0.48

0

1305

43

Q2

Material Flow Analysis

4

0.5

1

1357

46