FprEN 15732

SLOVENSKI STANDARD
01-februar-2008
Toplotnoizolacijski in lahki polnilni proizvodi za inženirske objekte - Proizvodi iz
ekspandiranega glinenega agregatnega proizvoda (LWA)
Light weight fill and thermal insulation products for civil engineering applications (CEA) -
Expanded clay lightweight aggregate products (LWA)
Leichte Schütt- und Wärmedämmstoffe für bautechnische Anwendungen (CEA) -
Produkte aus Blähton-Leichtzuschlagstoffen (LWA)
Ta slovenski standard je istoveten z: prEN 15732
ICS:
91.100.60
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
DRAFT
prEN 15732
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2007
ICS 91.100.60
English Version
Light weight fill and thermal insulation products for civil
engineering applications (CEA) - Expanded clay lightweight
aggregate products (LWA)
Leichte Schütt- und Wärmedämmstoffe für bautechnische
Anwendungen (CEA) - Produkte aus Blähton-
Leichtzuschlagstoffen (LWA)
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 88.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the
same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15732:2007: E
worldwide for CEN national Members.

prEN 15732:2007 (E)
Contents Page
Foreword.3
1 Scope .3
2 Normative references .3
3 Terms, definitions, symbols, units and abbreviated terms.4
4 Requirements.5
5 Test methods.8
6 Designation code.10
7 Evaluation of conformity.10
8 Marking and labelling .10
Annex A (normative) Test for mechanical and physical properties of expanded clay LWA -
Triaxial Test for determination of shear strength properties.11
Foreword.11
Annex B (normative) Test for mechanical and physical properties of expanded clay LWA —
Determination of the resistance to cyclic compressive loading .25
Annex C (normative)  Test for mechanical and physical properties of expanded clay LWA —
Determination of the compressive creep .31
Annex D (normative) Factory production control .36
Annex E (informative) Tabulated λλ -values of expanded clay LWA in lightweight fill
λλ
10,dry
applications .37
Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU
Construction Products Directive.38

prEN 15732:2007 (E)
Foreword
This document (prEN 15732:2007) has been prepared by Technical Committee CEN/TC 88 “Thermal
insulating materials and products”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association, and supports essential requirements of EU Directive(s). This document has
been progressed to CEN Enquiry even though a confirmation from the Commission that it can be considered as a
candidate harmonized standard is outstanding. An answer is being expected before the formal vote procedure. An
amendment to the answer to mandate M/103 is finalized.
For relationship with EC Directive(s), see informative Annex ZA which is an integral part of this document.
1 Scope
This standard describes the product characteristics and includes procedures for testing, marking and labelling.
This European Standard specifies the requirements for loose-fill expanded clay lightweight aggregate
(expanded clay LWA) products for Civil Engineering Applications excluding the use as thermal insulation in
and under buildings which are covered by European Standard EN 14063-1. The standard covers the use of
expanded clay LWA as lightweight fill and insulation materials in embankments for roads, railways and other
trafficked areas and as lightweight backfill for structures.
This standard does not specify the required level of a given property to be achieved by a product to
demonstrate fitness for purpose in a particular application. The levels required for a given application are to be
found in regulations or non-conflicting standards.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
EN 932-1, Test for general properties of aggregates - Part 1: Methods for sampling
EN 932-2, Test for general properties of aggregates - Part 2: Methods for reducing laboratory samples
EN 933-1, Test for geometrical properties of aggregates - Part 1: Determination of particle size distribution -
Sieving method
EN 1097-3, Test for mechanical and physical properties of aggregates - Part 3: Determination of loose bulk
density and voids
EN 1097-5, Test for mechanical and physical properties of aggregates - Part 5: Determination of water content
by drying in a ventilated oven
EN 1097-6, Test for mechanical and physical properties of aggregates - Part 6: Determination of particle
density and water absorption
EN ISO 10456, Thermal insulation building materials and products – Determination of declared and design
values (ISO 10456:1999)
prEN 15732:2007 (E)
EN 12524, Building materials and products – Hygrothermal properties – Tabulated design values
EN 13055-1, Lightweight aggregates – Part 1: Lightweight aggregates for concrete, mortar and grout
EN 13055-2, Lightweight aggregates – Part 2: Lightweight aggregates for bituminous mixtures and surface
treatments and for unbound and bound applications.
EN 13172, Thermal Insulation products - Evaluation of conformity
EN 13286-4, Unbound and hydraulically bound mixtures - Part 4: Test methods for laboratory reference
density and water content - Vibrating hammer.
EN 13286-5, Unbound and hydraulically bound mixtures - Part 5: Test methods for laboratory reference
density and water content - Vibrating table.
EN 13286-7, Unbound and hydraulically bound mixtures - Part 7: Cyclic load triaxial test for unbound mixtures
EN 13501-1, Fire classification of construction products and building elements – Part 1: Classification using
test data from reaction to fire test
EN 13820, Thermal insulation materials for building applications - Determination of organic content
EN 14063-1, Thermal insulation materials and products – In-situ formed expanded clay lightweight aggregate
products (LWA) – Part 1: Specification for the loose-fill products before installation
prEN ISO 9229, Thermal insulation – Definitions of terms (ISO/DIS 9229:2005)
3 Terms, definitions, symbols, units and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply. Other terms used for insulation
products are given in prEN ISO 9229.
3.1.1
expanded clay lightweight aggregate
Insulation material or product composed of lightweight granular material having a cellular structure formed by
expanding clay minerals by heat.
3.1.2
compressibility
Deformation at a certain load of a vibrated specimen, given as a load-deformation curve
3.1.3
compressive strength, CS(10)
The load where the deformation of a vibrated specimen is 10%
3.1.4
stiffness modulus
The stiffness modulus is given as the tangent to the load-deformation curve and shall be related to the level of
deformation.
3.1.5
compressive creep (CC)
Compressive creep is the deformation at a constant load in a specified time.
prEN 15732:2007 (E)
3.1.6
compaction
Mechanical compression (e.g. by vibrator) of the installed insulation layer, expressed as a percentage of the
initial untreated layer thickness.
3.1.7
level
Given value, which is the upper or lower limit of a requirement. The level is given by the declared value of the
characteristic concerned.
3.1.8
class
Combination of two levels of the same property, between which the performance shall fall, where the levels
are given by the declared value of the characteristic concerned.
3.2 Symbols, units and abbreviated terms
Symbols and units used in this standard:
LD is the symbol of the declared level for loose bulk density
PS is the symbol of the declared level for aggregate size (mm)
CS(10) is the symbol of the declared level for compressive strength at 10 % deformation
CC is the symbol of the declared level for compressive creep
Abbreviated terms used in this standard:
LWA is Lightweight Aggregate
ITT is Initial Type Test
CEA  is Civil Engineering Applications
4 Requirements
4.1 General
Product properties shall be assessed in accordance with Clause 5. To conform with this standard, products
shall meet the requirements of 4.2 and the requirements of 4.3 as appropriate.
Sampling of expanded clay LWA shall be performed according to EN 932-1 and splitting of samples according
to EN 932-2.
One test result on a product property is the average of the measured values on the number of test specimens
given in Table 1.
4.2 For all applications
4.2.1 Loose bulk density
Loose bulk density shall be declared and determined in accordance with EN 1097-3. The dry loose bulk
3 3
density shall be declared by the manufacturer with steps of 5 kg/m up to a density of 400 kg/m and thereafter
with steps of 10 kg/m . It shall be in the range of ±15% of the manufacturers declared value with a maximum of
3 3
± 100 kg /m .The value shall be expressed in kg/m .
NOTE The value of the density used for design purposes will be influenced by compaction and water content
prEN 15732:2007 (E)
4.2.2 Particle size distribution
4.2.2.1 General
Particle size distribution shall be measured in accordance with EN 933-1, without washing, and shall be
declared in % by mass.
4.2.2.2 Aggregate size
The pair of sieve sizes between which the main proportion of the particles lies shall designate the size and
any undersize or oversize shall comply with clauses 4.2.2.3 and 4.2.2.4.
The sieve sizes in mm shall be selected from the specifications in EN 13055-2.
NOTE Normally the aggregate size for expanded clay LWA products will be in the range 0 mm - 32 mm.
4.2.2.3 Undersize
The content of undersize material shall not exceed 15% by mass.
4.2.2.4 Oversize
The content of oversize material shall not exceed 10% by mass.
4.2.3 Reaction to fire
Reaction to fire classification (Euroclasses) shall be determined in accordance with EN 13501-1.
NOTE Expanded clay LWA described in clause 3.1.1 of the standard is classified, without testing, as a class A1
product in accordance with Commission Decision 96/603/EC as amended by decision 2000/605/EC as it is demonstrated
that the product has an organic content less than 1 %, determined by EN 13820.
4.2.4 Durability characteristics
4.2.4.1 General
The appropriate durability characteristics have been considered and are covered in 4.2.4.2 to 4.2.4.6.
Note: The product is a clay mineral product burnt to clinkers in a stable structure.
4.2.4.2 Durability of reaction to fire against ageing/degradation
The reaction to fire performance of expanded clay LWA does not change with time.
4.2.4.3 Durability of thermal resistance against ageing/degradation
The thermal conductivity (4.3.3) of the product does not change with time.
4.2.4.4 Durability of compressive strength against ageing/degradation
The compressive strength of expanded clay does not change with
...