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BS 8102:2022 – TC

BS 8102:2022 – TC

$246.62

Tracked Change. Protection of below ground structures against water ingress. Code of practice

Published By Publication Date Number of Pages
BSI 2022 138
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PDF Catalog

PDF Pages PDF Title
5 Summary of pages
6 Publishing information
Supersession
Information about this document
Use of this document
7 Presentational conventions
Contractual and legal considerations
Compliance with a British Standard cannot confer immunity from legal obligations.
8 1 Scope
9 2 Normative references
10 3 Terms and definitions
3.1 buried deck
3.13.2 cavity drain membrane
3.23.3 cut-off wall
3.33.4 damp area
3.43.5 embedded retaining wall
3.6 free lime
3.7 fully bonded
3.53.8 ground gas barrier
3.9 groundwater
11 3.10 hydraulic gradient
3.11 hydrostatic pressure
3.63.12 loading coat
3.73.13 perched water table
3.14 product information
3.83.15 seepage
3.93.16 tanking
3.103.17 Type A (barrier) protection
3.113.18 Type B (structurally integral) protection
3.123.19 Type C (drained) protection
3.13 vapour check
3.143.20 waterproof
3.153.21 waterproofing
12 3.163.22 waterproofing barrier
3.173.23 waterproofing system
3.183.24 water resistance
3.25 water resisting admixture
3.193.26 waterstop
3.203.27 water vapour
3.213.28 water vapour resistance
4 Design philosophy
4.1 General
13 4.2 Design team
4.3 Principal considerations
4.3.1 General
14 4.3.2 Defects and remedial measures
18 5 Site evaluation
5.1 General
5.1.1 Desk study
5.1.2 Risk assessment
19 5.1.3 Water table classification in relation to the structure
5.2 Inspection and survey for existing structures
5.2.1 General
20 5.2.2 External walls and floor
21 5.2.3 Floor
5.2.3 Buildings of historic significance or protected by legislation
22 6 Water resisting design
6.1 Groundwater
23 6.2 Waterproofing protection
6.2.1 General
25 6.2.2 Waterproofing design for existing structures
6.2.3 Combined protection
26 Figure 2 Schematic illustrations of Type A, Type B and Type C waterproofing protection
29 6.2.36.2.4 Water table classification and gradesrequired levels of waterproofing protectionperformance
34 6.2.46.2.5 Continuity of waterproofing protection
6.3 Exclusion of surface water
6.4 SubExternal sub‑surface drainage
37 6.5 Buried decks below ground level
39 6.56.6 Ground gases
7 General construction issues
7.1 Site de-watering
7.1 Site dewatering
41 7.2 Unexpected hazards
7.27.3 Structural elements
7.4 Continuity in construction
7.5 Protecting waterproofing
42 8 Type A (barrier) protection
8.1 Structural aspects
8.1.1 General
8.1.2 Differential movement and cracking
43 Figure 4 Effect of structure on applied waterproofing barrier
44 8.1.3 Continuity of waterproofing barrier
8.1.4 Structural penetration and loading through waterproofing barriers
46 8.1.5 Movement joints
8.2 Waterproofing barrier materials
8.2.1 General
49 Figure 6 Effect of bonded or partially bonded barriers
Figure 9 — Effect of bonded or partially bonded barriers
8.2.2 Sheet membranes
50 8.2.2 Bonded sheet membranes
8.2.3 Liquid applied membranes
8.2.4 Geosynthetic clay liners
51 8.2.2.1 Pre-applied membranes
8.2.2.2 Post-applied membranes
8.2.3 Liquid applied membranes
52 8.2.4 Active core liners
8.2.4.1 General
8.2.4.2 Pre-applied liners
8.2.4.3 Post-applied liners
53 8.2.5 Mastic asphalt membranes
8.2.6 Cementitious crystallization slurries and powders
8.2.6.1 General
8.2.6.2 Horizontal applications
8.2.6.3 Vertical applications
8.2.7 Cementitious multicoat renders, mortars and coatings
54 8.2.7 Cementitious multi-coat renders, mortars and coatings
9 Type B (structurally integral) protection
9.1 General
55 9.2 Materials for structurally integral protection
9.2.1 Concrete
9.2.1.1 General
56 9.2.1.2 Reinforced and prestressed concrete (in‑situ or precast)
9.2.1.3 Concrete containing waterproofing water resisting admixtures
57 9.2.1.4 Waterstops
58 9.2.2 Steel
9.3 Embedded retaining walls
9.3.1 General
59 9.3.2 Concrete retaining walls
9.3.3 Steel retaining walls
60 10 Type C (drained) protection
10.1 Structural aspects
10.2 Cavity drain systems
61 10.2.1 Cavity drain systems with membranes
10.2.1.1 Cavity drain membranes
10.2.1.2 Leachates and free lime
10.2.1.210.2.1.3 Floor cavities
62 10.2.1.4 Drainage design
10.2.1.310.2.1.5 Wall cavities
10.2.2 Multi‑level systems
64 10.2.210.2.3 Cavity drain systems without membranes
65 10.2.3 Cavity ventilation
10.2.4 Cavity ventilation
10.2.5 Inverted cavity drain systems
66 10.2.6 Discharge systems
67 10.2.7 Pumps
68 10.3 Maintenance and commissioning
10.3.1 Design
10.3 Servicing and maintenance
10.3.1 Servicing
10.3.2 Installation and inspectionCommissioning and maintenance
69 11 Remedial measures
11.1 General
71 11.2 Pressure or vacuum grouting
11.2 External grouting or injection
11.2.1 General
72 11.2.2 External grouting
11.2.3 Resin or grout injection into the structure
11.3 Crack sealing with resin or cementitious mortar
73 11.3 Repair with cementitious or polymeric systems
11.4 Crack filling by pressure or vacuum injection
11.511.4 Replacement of locally defective material
74 11.5 Masonry structures
11.5.1 General
11.5.2 Investigation/Diagnosis
75 Standards publications
76 Other publications
77 Further reading
BS EN 1991, Eurocode 1: Actions on structures
BS EN 1996, Eurocode 6: Design of masonry structures
BS EN 13252, Geotextiles and geotextile-related products – Characteristics required for use in drainage systems
83 Foreword
85 1 Scope
2 Normative references
86 3 Terms and definitions
88 4 Design philosophy
4.1 General
89 4.2 Design team
4.3 Principal considerations
92 Figure 1 — Design flowchart
93 5 Site evaluation
5.1 General
94 5.2 Inspection and survey for existing structures
96 6 Water resisting design
6.1 Groundwater
97 6.2 Waterproofing protection
99 Figure 2 — Schematic illustrations of Type A, Type B and Type C waterproofing protection – Type A (barrier) protection
Figure 3 — Schematic illustrations of Type A, Type B and Type C waterproofing protection – Type B (structurally integral) protection
100 Figure 4 — Schematic illustrations of Type A, Type B and Type C waterproofing protection – Type C (drained) protection
101 Table 1 — Use of different protection types based on water table classification
103 Table 2 — Waterproofing protection – Grades of performance for below ground spaces
104 6.3 Exclusion of surface water
6.4 External sub‑surface drainage
105 Figure 5 — Sub‑surface drainage positioning
106 6.5 Buried decks below ground level
107 Figure 6 — Typical details of a buried deck with drainage
108 6.6 Ground gases
7 General construction issues
7.1 Site dewatering
109 7.2 Unexpected hazards
110 7.3 Structural elements
7.4 Continuity in construction
7.5 Protecting waterproofing
111 8 Type A (barrier) protection
8.1 Structural aspects
112 Figure 7 — Effect of structure on applied waterproofing barrier
113 Figure 8 — Examples of pile to floor slab junction
114 8.2 Waterproofing barrier materials
115 Table 3 — Waterproofing barriers
117 Figure 9 — Effect of bonded or partially bonded barriers
120 9 Type B (structurally integral) protection
9.1 General
9.2 Materials for structurally integral protection
123 9.3 Embedded retaining walls
125 10 Type C (drained) protection
10.1 Structural aspects
10.2 Cavity drain systems
128 Figure 10 — Example of a multi‑level system
130 Figure 11 — Example of a flood loop discharge
131 10.3 Servicing and maintenance
132 11 Remedial measures
11.1 General
133 11.2 External grouting or injection
134 11.3 Repair with cementitious or polymeric systems
11.4 Replacement of locally defective material
135 11.5 Masonry structures
136 Bibliography

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BS 8102:2022 - TC
$246.62