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BS 6349-1-4:2021

BS 6349-1-4:2021

$215.11

Maritime works – General. Code of practice for materials

Published By Publication Date Number of Pages
BSI 2021 88
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This part of BS 6349 gives recommendations for the materials used in the design and construction of maritime environment structures, and includes specific provisions for use in a seawater environment.

NOTE Materials used in these conditions are often subject to more onerous environmental conditions than onshore structures, and thus particular attention is paid to the use of durable materials to provide the required performance and design life.

PDF Catalog

PDF Pages PDF Title
6 Foreword
9 Section 1: General
Introduction
1 Scope
2 Normative references
13 3 Terms, definitions and abbreviated terms
15 Section 2: Concrete
4 General recommendations for concrete
5 Design and construction of concrete structures
16 6 Durability of concrete structures
17 7 Deterioration processes in concrete structures
7.1 General
18 Table 1 — Limiting values for composition and properties for both reinforced and unreinforced concrete with normal‑weight aggregates exposed to both UK seawater conditions and abrasion for a required design working life up to 100 yearsA) B)
7.2 Chloride‑induced corrosion
19 Table 2 — Maritime exposure classes for chloride induced corrosion of steel in concrete by seawater
21 7.3 Carbonation‑induced corrosion
22 Table 3 — Maximum water/cement ratioA), minimum cement/combination contentB) and indicative compressive strength classC) for normal‑weight concreteD) of 20 mm maximum aggregate size for reinforced and prestressedE) concrete exposed to XSM exposure conditi
23 Table 3 — Maximum water/cement ratioA), minimum cement/combination contentB) and indicative compressive strength classC) for normal‑weight concreteD) of 20 mm maximum aggregate size for reinforced and prestressedE) concrete exposed to XSM exposure conditi
24 Table 4 — Maximum water/cement ratioA), minimum cement/combination contentB) and indicative compressive strength classC) for normal‑weight concreteD) of 20 mm maximum aggregate size for reinforced and prestressedE) concrete exposed to XSM exposure conditi
25 Table 4 — Maximum water/cement ratioA), minimum cement/combination contentB) and indicative compressive strength classC) for normal‑weight concreteD) of 20 mm maximum aggregate size for reinforced and prestressedE) concrete exposed to XSM exposure conditi
26 Table 5 — Maximum water/cement ratioA), minimum cement/combination contentB) and indicative compressive strength classC) for normal‑weight concreteD) of 20 mm maximum aggregate size for reinforced and prestressedE) concrete exposed to XSM exposure conditi
27 Table 5 — Maximum water/cement ratioA), minimum cement/combination contentB) and indicative compressive strength classC) for normal‑weight concreteD) of 20 mm maximum aggregate size for reinforced and prestressedE) concrete exposed to XSM exposure conditi
28 7.4 Sulfate attack
7.5 Delayed ettringite formation (DEF)
7.6 Freeze–thaw
7.7 Alkali‑silica reaction
29 8 Materials and workmanship in concrete structures
8.1 General
8.2 Chloride content of concrete
Table 6 — Chloride content class of concrete for maritime structures
8.3 Reinforcement
30 8.4 Pre‑tensioning and post‑tensioning systems
8.5 Cover
8.6 Curing
31 Table 7 — Minimum curing periods for different cement types
8.7 Underwater concreting
33 Section 3: Metals
9 Structural steels and castings
9.1 Steel plates and sections
34 9.2 Steel castings
9.3 Chains
35 9.4 Cast irons
9.5 Corrosion and corrosion mitigation
40 9.6 Protective paints, coatings and wraps
43 9.7 Cathodic protection
44 10 Aluminium and its alloys
10.1 General
10.2 Structural properties
45 10.3 Corrosion and corrosion protection
11 Other metals
46 Section 4: Timber
12 General recommendations for timber
13 Resistance to environmental hazards
13.1 Mechanical damage
13.2 Biological attack
47 13.3 Fungal decay
13.4 Marine borers
14 Functional suitability
14.1 Piling
14.2 Superstructures
48 14.3 Kerbs and capping pieces
14.4 Fendering and rubbing strips
14.5 Sea defences
14.6 Dock blocks
14.7 Other applications
15 Fastenings
50 Section 5: Polymers
16 Elastomers
16.1 Rubber
52 Table 8 — Vulcanized rubber compound physical and mechanical properties
53 16.2 Polyurethane
54 Table 9 — PTMEG polyurethane elastomer compound physical and mechanical properties
55 16.3 Elastomers for fenders
56 16.4 Elastomers for structural bearings
16.5 Embedded/integral steel reinforcing plates
57 17 Plastics
17.1 General recommendations for plastics
17.2 UHMW-PE
58 Table 10 — Material properties for UHMW-PE
59 Section 6: Stone for armouring or protection works
18 General recommendations for stone
19 Grading
19.1 General
19.2 Cover layer underlayer and filter applications
60 19.3 Volume filling materials
20 Geometrical parameters
61 21 Physical and chemical parameters
62 22 Particular armourstone sources
23 Use of stone with concrete armour units
63 Section 7: Bituminous materials
24 Asphaltic concrete
65 25 Sand mastic
26 Open stone asphalt
67 27 Lean sand asphalt
68 Annex A (informative)  Factors affecting the design of maritime concrete
70 Figure A.1 — Schematic diagram of the chloride transport processes in a maritime structure
71 Figure A.2 — Effect of macroclimate on chloride ingress/induced corrosion
72 Annex B (informative)  Enhanced protection of reinforcement
74 Annex C (informative)  Historically measured corrosion rates
Table C.1 — Measured corrosion rates for non‑alloy structural steels in temperate climates
75 Annex D (informative)  Guidance on the specification of materials for elastomeric fenders
77 Annex E (informative)  Typical production control system for elastomeric fenders
82 Annex F (informative)  Uses of bituminous materials
83 Table F.1 — Possible uses of bituminous materials in maritime protection works
84 Bibliography

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BS 6349-1-4:2021
$215.11