CEN/TC 154/SC 5 - Lightweight aggregates

This European Standard specifies the properties of Lightweight Aggregates (LWA) and fillers derived thereof obtained by processing natural or manufactured materials and mixtures of these aggregates for concrete, mortar and grout, bituminous mixtures and surface treatments and for unbound and hydraulically bound applications in construction works.
This European Standard covers LWA of mineral origin having particle densities not exceeding 2000 kg/m3 (2,000 Mg/m3) or loose bulk densities not exceeding 1200 kg/m3 (1,200 Mg/m3) including:
a)   natural LWA;
b)   LWA manufactured from natural materials;
c)   LWA manufactured from by-products of industrial processes or from recycled source materials;
d)   LWA as by-products of industrial processes.
A list of source materials and specific materials, which are within the scope of this standard, is given in Annex A (normative).
NOTE   Recycled aggregates from construction and demolition waste and Municipal Solid Waste Incinerator Bottom Ash (MIBA) are covered by standards EN 12620, EN 13043, EN 13139 and EN 13242.
Some LWA for specific applications are covered in separate European product standards (Annex B, normative).
The requirements specified in this standard may not be equally relevant to all types of LWA. For particular applications, the requirements and tolerances can be adapted for the end use.

This document specifies the characteristics of lightweight aggregates (LWA) and LWA fillers and mixtures of them intended to be used in concrete, mortar and grout, bituminous mixtures, surface treatments and for unbound and hydraulically bound applications in construction works.
This document covers LWA and LWA fillers from mineral materials having particle densities less or equal to 2000 kg/m3 (2,000 Mg/m3) or loose bulk densities less or equal to 1200 kg/m3 (1,200 Mg/m3).
With regard to the aggregate size, this document covers LWA: fine lightweight aggregate (see 3.1.7), coarse lightweight aggregate (hereafter called coarse LWA) (see 3.1.8), all-in lightweight aggregate (hereafter called all-in LWA) (see 3.1.9) and LWA fillers (see 3.1.10).
With regard to the material source and production technique, this document covers LWA and LWA fillers:
a)   of natural origin (see 3.1.2),
b)   manufactured from natural materials (see 3.1.3),
c)   manufactured from by-products of industrial processes (see 3.1.4) or from recycled source materials (see 3.1.5), and
d)   as by-products of industrial processes (see 3.1.4).
Limits given to densities are related to some test methods which might not be applicable to some lightweight aggregates and lightweight aggregate fillers. This limitation is purely based on technical reasons and not to exclude any products from the market.
This document also specifies procedures for assessment and verification of constancy (AVCP) of performance of characteristics of LWA and LWA fillers.
This document does not cover LWA and LWA fillers of recycled aggregates from construction and demolition waste and Municipal Solid Waste Incinerator Bottom Ash (MIBA) (covered by prEN 17555-1:2021).

This document specifies the characteristics of lightweight aggregates (LWA) and LWA fillers and mixtures of them intended to be used in concrete, mortar and grout, bituminous mixtures, surface treatments and for unbound and hydraulically bound applications in construction works.
This document covers LWA and LWA fillers from mineral materials having particle densities less or equal to 2000 kg/m3 (2,000 Mg/m3) or loose bulk densities less or equal to 1200 kg/m3 (1,200 Mg/m3).
With regard to the aggregate size, this document covers LWA: fine lightweight aggregate (see 3.1.7), coarse lightweight aggregate (hereafter called coarse LWA) (see 3.1.8), all-in lightweight aggregate (hereafter called all-in LWA) (see 3.1.9) and LWA fillers (see 3.1.10).
With regard to the material source and production technique, this document covers LWA and LWA fillers:
a)   of natural origin (see 3.1.2),
b)   manufactured from natural materials (see 3.1.3),
c)   manufactured from by-products of industrial processes (see 3.1.4) or from recycled source materials (see 3.1.5), and
d)   as by-products of industrial processes (see 3.1.4).
Limits given to densities are related to some test methods which might not be applicable to some lightweight aggregates and lightweight aggregate fillers. This limitation is purely based on technical reasons and not to exclude any products from the market.
This document also specifies procedures for assessment and verification of constancy (AVCP) of performance of characteristics of LWA and LWA fillers.
This document does not cover LWA and LWA fillers of recycled aggregates from construction and demolition waste and Municipal Solid Waste Incinerator Bottom Ash (MIBA) (covered by prEN 17555-1:2021).

This European Standard specifies the properties of lightweight aggregates and fillers derived thereof obtained by processing natural, manufactured or recycled materials and mixtures of these aggregates for bituminous mixtures and surface treatments and for unbound and hydraulically bound applications other than concrete, mortar and grout.
This European Standard covers lightweight aggregates of mineral origin having particle densities not exceeding 2000 kg/m3 (2,00 Mg/m3) or loose bulk densities not exceeding 1200 kg/m3 (1,20 Mg/m3) including:
a)   natural aggregates;
b)   aggregates manufactured from natural materials and/or from by-products of industrial processes;
c)   by-products of industrial processes;
d)   recycled aggregates.
It provides for the evaluation of conformity of the products to this European Standard.
The requirements specified in this standard may not be relevant to all types of lightweight aggregates. For particular applications the requirements and tolerances can be adapted for the end use.
NOTE   Aggregates used in construction should comply with all the requirements of this European Standard. As well as familiar and traditional natural and manufactured aggregates Mandate M/125 "Aggregates" included recycled aggregates and some materials from new or unfamiliar sources. Recycled aggregates are included in the standards and new test methods for them are at an advanced stage of preparation. For unfamiliar materials from secondary sources, however, the work on standardization has only started recently and more time is needed to define clearly the origins and characteristics of these materials. In the meantime such unfamiliar materials when placed on the market as aggregates should comply fully with this standard and national regulations for dangerous substances (see annex ZA) depending upon their intended use. Additional characteristics and requirements can be specified on a case by case basis depending upon experience of use of the product, and defi

This European Standard specifies the properties of lightweight aggregates and lightweight filler aggregates obtained by processing natural, manufactured or recycled materials and mixtures of these aggregates for use in concrete, mortar and grout in buildings, roads and civil engineering works.
This European Standard covers lightweight aggregates of mineral origin having particle densities not exceeding
2 000 kg/m3 (2,00 Mg/m3) or loose bulk densities not exceeding 1 200 kg/m3 (1,20 Mg/m3) including:
a)   natural aggregates;
b)   aggregates manufactured from natural materials and/or from by-products of industrial processes;
c)   by-products of industrial processes;
d)   recycled aggregates.
It provides for the evaluation of conformity of the products to this European Standard.
The requirements specified in this standard may not be relevant to all types of lightweight aggregates. For particular applications the requirements and tolerances may be adapted for the end use.
NOTE   The requirements in this European Standard are based upon experience with aggregate types with an established pattern of use. Care should be taken when considering the use of aggregates from sources with no such pattern of use, e.g., recycled aggregates and aggregates arising from certain industrial by-products. Such aggregates, which should comply with all the requirements of this European Standard, could have other characteristics not included in Mandate M 125 that do not apply to the generality of aggregate types with an established pattern of use and when required, provisions valid at the place of use can be used to assess their suitability.

2009-10-01: OD Citation flagged following request by ADC
TC - Change in Scope and Annex ZA