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39、A Group”Prepared byApproved byFired masonry brick made from clayor shaleCAN/CSA-A82-14(approved March 2015)National Standard of CanadaCAN/CSA-A82-14 Fired masonry brick made from clay or shaleMarch 2014 2014 CSA Group 1ContentsTechnical Committee on Brick and Hollow Tile 5Preface 70 Introduction 81
40、Scope 82 Reference publications 93 Definitions 104 Materials 114.1 General 114.2 Materials other than clay or shale 115 Grades 116 Types 117 Freeze-thaw durability 127.1 Establishing the grade of brick 127.2 Exterior Grade (EG) 127.2.1 Acceptance criteria 127.2.2 Absorption testing 127.2.3 Freeze-th
41、aw testing 127.3 Interior grade (IG) 138 Finish 138.1 Surface colour 138.2 Surface treatments 138.3 Surface defects 138.4 Texture and colour 149 Specialty brick 1410 Dimensions 1410.1 Measurement 1410.2 Size 1410.3 Warpage 1410.4 Out-of-square 1411 Coring, frogging, and webs 1511.1 Cores and cells 1
42、511.2 Frogs 1511.3 Web thickness 15CAN/CSA-A82-14 Fired masonry brick made from clay or shaleMarch 2014 2014 CSA Group 212 Sampling of specimens 1512.1 General 1512.2 Number of specimens 1512.3 Retesting 1512.4 Preparation of specimens 1612.4.1 Half-brick specimens 1612.4.2 Identification 1612.4.3 C
43、leaning 1612.5 Drying 1612.6 Cooling 1613 Compressive strength test 1613.1 Test specimens 1613.1.1 Number of specimens 1613.1.2 Size of test specimens 1713.1.3 Specimen orientation 1713.1.4 Area 1713.2 Calculation of areas 1713.2.1 Apparatus and measurement 1713.2.2 Gross area 1713.2.3 Net area 1713
44、.3 Capping 1713.4 Loading procedure 1813.5 Speed of testing 1813.6 Calculation and reporting of compressive strength 1913.6.1 Calculation 1913.6.2 Reporting 1914 Twenty-four-hour cold water and five-hour boiling water absorption tests 1914.1 Twenty-four-hour cold water absorption test 1914.1.1 Test
45、specimens 1914.1.2 Apparatus 1914.1.3 Procedure 1914.1.4 Calculation and reporting of 24 h cold water absorption 2014.2 Five-hour boiling water absorption test 2014.2.1 Test specimens 2014.2.2 Procedure 2014.2.3 Calculation and reporting of 5 h boiling water absorption 2114.2.4 Saturation coefficien
46、t 2115 Freeze-thaw performance test 2115.1 Test specimens 2115.2 Apparatus 2215.2.1 Freezing chamber 2215.2.2 Trays 2215.2.3 Supports 2215.2.4 Apparatus 2215.2.5 Thawing tank 2215.3 Procedure 22CAN/CSA-A82-14 Fired masonry brick made from clay or shaleMarch 2014 2014 CSA Group 315.3.1 Drying and coo
47、ling 2215.3.2 Determining mass 2215.3.3 Submersion 2315.3.4 Exposure to freezing 2315.3.5 Thawing 2315.3.6 Duration of test 2315.3.7 Interruptions in the test schedule 2315.3.8 Final drying and cooling 2315.4 Calculation and reporting of loss of mass due to freezing and thawing 2315.4.1 Calculation
48、2315.4.2 Reporting 2316 Initial rate of absorption test 2416.1 Test specimens 2416.2 Apparatus 2416.2.1 Tray 2416.2.2 Supports 2416.2.3 Water level control 2416.2.4 Apparatus 2416.2.5 Constant-temperature room 2416.2.6 Timing device 2416.3 Procedure 2416.3.1 Measurement of bed face and initial deter
49、mination of mass 2416.3.2 Placement of tray 2416.3.3 Placement of specimens 2516.3.4 Redetermination of mass 2516.4 Calculation and reporting 2517 Efflorescence test 2517.1 Test specimens 2517.2 Trays 2517.3 Procedure 2617.3.1 Placement of specimens 2617.3.2 Reference specimens 2617.3.3 Drying 2617.4 Examination and rating 2618 Size measurement 2618.1 Specimens 2618.2 Apparatus 2618.3 Procedure 2618.4 Calculation and reporting 2719 Warpage measurement 2719.1 Specimens 2719.2 Apparatus 2719.3 Procedure 2719.4 Reporting 27CAN/CSA-A82-14 Fired masonry brick made fr
