Name: PREN 772-22 : DRAFT 2017
Brand: CEN

METHODS OF TEST FOR MASONRY UNITS - PART 22: DETERMINATION OF FREEZE/THAW RESISTANCE OF CLAY MASONRY UNITS

Published date

28-11-2017

Publisher

Comite Europeen de Normalisation

European foreword
1 Scope
2 Normative references
3 Principle
4 Apparatus
5 Materials
6 Preparation of Specimens
7 Construction of a test panel
8 Procedure of freezing and thawing
9 Evaluation of results
10 Test report
Annex A (informative) - Heat flow meter
Annex B (normative) - Calibration - Measurement
of rate of spray water
Annex C (normative) - Calibration - Measurement
of heat transfer rate

Defines a method for determining the freeze/thaw resistance of clay masonry units that are declared by the manufacturer as meeting the requirements for U units and as suitable to be subjected to severe (F2) exposure.

Committee	TC 125
DocumentType	Draft
PublisherName	Comite Europeen de Normalisation
Status	Current

Standards	Relationship
17/30351890 DC : DRAFT NOV 2017	Identical
NEN EN 772-22 : DRAFT 2017	Identical
17/30351890 DC : 0	Identical
DIN EN 772-22:2019-02	Identical
99/109559 DC : DRAFT DEC 1999	Identical
DIN EN 772-22:2017-12 (Draft)	Identical

EN 772-21:2011	Methods of test for masonry units - Part 21: Determination of water absorption of clay and calcium silicate masonry units by cold water absorption
EN 771-1:2011+A1:2015	Specification for masonry units - Part 1: Clay masonry units