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BS EN 772-22:2018:2019 Edition

$142.49

Methods of test for masonry units – Determination of freeze/thaw resistance of clay masonry units

Published By Publication Date Number of Pages
BSI 2019 24
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This document specifies a method for determining the freeze/thaw resistance of clay masonry units in one of two categories F1 or F2.

PDF Catalog

PDF Pages PDF Title
2 undefined
8 1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
9 6 Materials
7 Preparation of specimens
7.1 Sampling
7.2 Water absorption
7.3 Conditioning and preparation of specimens
10 8 Construction of a test panel
8.1 General
12 8.2 Conditioning of a test panel
8.2.1 General
8.2.2 Partial saturation by cold water immersion
8.2.3 Partial saturation by immersion in water at 80°C
9 Procedure of freezing and thawing
9.1 General
9.2 Freeze/thaw cycling
9.2.1 General
13 9.2.2 Freezing period
9.2.3 Thawing period
9.2.4 Reconditioning after an interruption
9.3 Examination of test panel and units
10 Evaluation of results
10.1 Assessment of damage
14 10.2 Assessment of freeze/thaw resistance
16 11 Test report
18 Annex A (informative)Heat flow meter
20 Annex B (normative)Calibration — Measurement of rate of spray water
21 Annex C (normative)Calibration — Measurement of heat transfer rate
BS EN 772-22:2018
$142.49