BS EN 772-22:2018:2019 Edition
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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 |
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 |
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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 |