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© Canadian Standards Association Precast concrete — Materials and construction
November 2009 V
15 Fabrication and placement of hardware and other embedded items 21
15.1 General 21
15.2 Handling of hardware 21
15.3 Shop drawings 21
15.4 Tolerances for placing hardware 21
15.5 Lifting and handling hardware 21
16 Mix proportions 21
16.1 General 21
16.2 Architectural concrete 22
16.3 Veneered construction 22
17 Durability 22
18 Specifying concrete 22
19 Concrete quality 22
19.1 General 22
19.2 Air content — Frequency and number of tests 23
19.3 Compressive strength 23
19.3.1 Frequency and number of tests 23
19.3.2 Test methods 23
19.3.3 Test cylinders 23
19.3.4 In-house testing 23
19.3.5 Unbonded caps 23
19.4 Absorption — Frequency and number of tests 24
19.5 Accelerated curing tests 24
19.6 Intermediate strength levels 24
19.7 Low-density concrete 24
19.8 No-slump concrete 25
19.9 Low-permeability concrete 25
20 Production of concrete 25
20.1 General 25
20.2 Mixers 25
20.3 Control of slump and air content 26
20.4 Colouring materials 26
20.5 Facing materials 26
20.6 Multiple finishes 26
21 Placing of concrete 26
21.1 General 26
21.2 Placing 27
21.3 Consolidation 27
21.4 Removal of paste 27
22 Joints 28
22.1 General 28
22.2 Construction joints 28
22.2.1 General 28
22.2.2 Architectural joints 28
23 Protection and curing 29
23.1 General 29
23.2 Initial curing 29
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