Residential Cellular Concrete Building

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Residential Cellular Concrete Building

Contents

1. Introduction 3
1.1 What are cellular structures? 3
1.2 Why cellular structures? 4
1.3 What options are available? 4
2. Cellular concrete construction 7
2.1 Maximising the benefi ts 7
2.2 Balconies 10
2.3 Bathroom pods 10
2.4 Early coordination of services 11
2.5 Servicing routes 12
2.6 Screeds and toppings 13
2.7 Cladding 17
2.8 Internal walls 17
2.9 Stability 17
2.10 Ground insulation 18
2.11 Airtightness 18
2.12 Movement joints 18
2.13 Coordination of design 18
3. Performance of concrete in buildings 19
3.1 Fire resistance 19
3.2 Acoustics 20
3.3 Thermal mass 25
4. Structural support 26
4.1 Foundations 26
4.2 Transfer structures 26
4.3 Options for transfer structures 26
4.4 Robustness 30
5. Crosswall construction 31
5.1 Site 31
5.2 Initial sizing 31
5.3 Structural support at openings 33
5.4 Concrete 34
5.5 Finishes 34
5.6 Screeds 35
5.7 Design details 35
5.8 Construction 38
5.9 Tolerances 39
5.10 Robustness 41
6. Tunnel form construction 45
6.1 Site 45
6.2 Initial sizing 45
6.3 Concrete placing and curing 48
6.4 Finishes 48
6.5 Design checks required 49
6.6 Design 49
6.7 Construction 50
6.8 Robustness 53
6.9 Health and safety 53
6.10 Alternatives to tunnel form 53
7. Twinwall 54
7.1 Site 54
7.2 Initial sizing 54
7.3 Concrete 56
7.4 Finishes 56
7.5 Design details 56
7.6 Construction 58
7.7 Tolerances 59
7.8 Robustness 60
Appendix A. Volumetric precast concrete prison cells 61
Appendix B. Crosswall worked example 63
Appendix C. Tunnel form worked example 66
References 69
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