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BS EN 14487-1:2022

BS EN 14487-1:2022

$189.07

Sprayed concrete – Definitions, specifications and conformity

Published By Publication Date Number of Pages
BSI 2022 46
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This document is applicable to sprayed concrete to be used for repair and upgrading of structures, for new structures and for strengthening of ground. This document covers: – classification related to consistence of wet mix; – environmental exposure classes; young, hardened and fibre reinforced concrete; – requirements for constituent materials, for concrete composition and for basic mix, for fresh and hardened concrete and all types of fibre reinforced sprayed concrete; – specification for designed and prescribed mixes; – conformity. This document is applicable to wet mix as well as dry mix sprayed concrete. The substrates to which sprayed concrete can be applied include: – ground (rock and soil); – sprayed concrete; – different types of formwork; – structural components constituted of concrete, masonry and steel; – drainage materials; – insulating materials. Additional or different requirements may be needed for applications not within this document, for instance-refractory uses.

PDF Catalog

PDF Pages PDF Title
2 undefined
8 1 Scope
2 Normative references
10 3 Terms and definitions
3.1 Mix component
3.1.1 Admixtures
11 3.1.5 Fibres
12 3.2 Product
3.2.1 General
3.2.1.2 Sprayed concrete with fibres
13 3.2.2 Dry mix
3.3 Process
3.3.1 Dry spraying process
3.3.2 Wet spraying process
3.3.3 General
14 3.4 Properties
15 3.5 Execution
3.6 Operative
16 3.7 Test and inspection
4 Classification
4.1 Consistence of wet mix
4.2 Exposure classes
4.3 Young sprayed concrete
17 4.4 Compressive strength
18 4.5 Fibre reinforced sprayed concrete
4.5.1 General
4.5.2 Residual strength classes
4.5.2.1 General
4.5.2.2 Classification according to the four point bending test without a notch (EN 144883, method A)
4.5.2.3 Classification according to alternative three point bending test on square panel with a notch (EN 144883, method B)
19 4.5.3 Energy absorption capacity
20 5 Requirements for sprayed concrete
5.1 Requirements for constituent materials
21 5.2 Requirements for sprayed concrete composition
5.2.1 General
22 5.2.2 Concrete composition
5.3 Requirements on the basic mix
23 5.4 Requirements for the fresh sprayed concrete
5.5 Requirements for hardened sprayed concrete
24 6 Specification for sprayed concrete
6.1 General
25 6.2 Data for specifying designed mix
6.2.1 Basic data
6.2.2 Additional data
26 6.3 Data for specifying prescribed mix
6.3.1 Basic data
6.3.2 Additional data
7 Assessment of conformity
7.1 General
27 7.2 Inspection categories
7.3 Preconstruction testing
29 7.4 Production control
7.4.1 General
7.4.2 Constituent materials control
32 7.4.3 Control of basic mix
7.4.4 Control of sprayed concrete properties
35 7.5 Conformity criteria
7.5.1 General
7.5.1.1 Early strength development
7.5.1.2 Compressive strength
7.5.1.3 Resistance to water penetration
7.5.1.4 Freeze/thaw resistance
7.5.1.5 Bond strength
36 7.5.1.6 Consistence
7.5.2 Additional for fibre reinforced sprayed concrete
7.5.2.1 Fibre content
7.5.2.2 First peak flexural strength
7.5.2.3 Ultimate flexural strength
7.5.2.4 Residual strength
37 7.5.2.5 Energy absorption capacity
38 Annex A (informative)Guidelines for definitions, specification and conformity for sprayed concrete
A.1 Introduction
A.2 Scope
A.3 Classification
A.3.1 Guidance related to exposure classes
A.3.2 Fibre reinforced sprayed concrete
A.3.2.1 General
A.3.2.2 Residual strength classes
39 A.3.2.3 Energy absorption capacity
40 A.4 Guidance for sprayed concrete
A.4.1 Constituent materials
A.4.2 Guidance for the sprayed concrete composition
A.4.2.1 General
A.4.2.2 Use of cement
A.4.2.3 Use of aggregates
A.4.2.4 Use of admixtures
41 A.4.2.5 Use of fibres
A.4.2.6 Water/cement ratio
A.5 Specification of sprayed concrete
A.6 Assessment of conformity

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BS EN 14487-1:2022
$189.07