BS 8204-2:2002
$167.15
Screeds, bases and in-situ floorings – Concrete wearing surfaces. Code of practice
| Published By | Publication Date | Number of Pages |
| BSI | 2002 | 40 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | BRITISH STANDARD |
| 2 | Committees responsible for this British�Standard |
| 3 | Contents |
| 5 | 1 Scope 2 Normative references |
| 6 | 3 Terms and definitions 3.1 base 3.2 flooring 3.3 direct finished base slab 3.4 screed material 3.5 screed 3.6 wearing screed 3.7 levelling screed 3.8 overslab |
| 7 | 3.9 departure from datum 3.10 surface regularity 3.11 addition 3.12 dry shake finish 3.13combinations |
| 8 | Figure 1 Illustration of layers in a ground-supported concrete floor |
| 9 | Figure 2 Illustration of layers in a suspended concrete floor |
| 10 | 4 Exchange of information and time schedule 4.1 General 4.2 Exchange of information 4.3 Time schedule |
| 11 | 5 Materials 5.1 Cement |
| 12 | 5.2 Additions 5.3 Aggregates |
| 13 | Table 1 Grading limits of sand for wearing surfaces 5.4 Pigments 5.5 Admixtures Table 2 Admixtures |
| 14 | 5.6 Dry shake/sprinkle finish and special aggregates 5.7 Surface treatments 5.8 Ready mixed concrete 5.9 Water 6 Design considerations: performance requirements 6.1 Tolerances on level and surface regularity |
| 15 | Table 3 Classification of surface regularity for finished wearing surfaces |
| 16 | 6.2 Resistance to abrasion |
| 17 | Table 4 Classification of abrasion resistance and limiting depths of wear for the abrasion test |
| 18 | Table 4 Classification of abrasion resistance and limiting depths of wear for the abrasion test |
| 19 | 6.3 Slip resistance |
| 20 | 6.4 Resistance to chemical attack 6.5 Resistance to high temperature and thermal shock 7 Design considerations: general 7.1 Methods of construction 7.2 Sub-base |
| 21 | 7.3 Damp-proofing concrete wearing screeds and direct finished ground-supported floors 7.4 Location of services 7.5 Liability to cracking and curling of slabs and wearing screeds |
| 22 | 7.6 Use of admixtures 7.7 Dry shake/sprinkle finish, special aggregates and fibres 7.8 Surface treatments |
| 23 | 8 Design considerations: direct finished slabs 8.1 Types of construction 8.2 Concrete strength |
| 24 | 8.3 Thickness of direct finished slabs 8.4 Bay sizes for direct finished slabs 8.5 Joints in direct finished ground-supported slabs |
| 25 | 8.6 Direct finishing of in situ concrete suspended floors 9 Design considerations: wearing screeds 9.1 Selection of methods to eliminate or minimize cracking and curling of wearing screeds 9.2 Mix proportions |
| 26 | 9.3 Thickness 9.4 Bay sizes for wearing screeds |
| 27 | 9.5 Joints 9.6 Wearing screeds on suspended floors |
| 28 | 9.7 Reinforcement 10 Work on site: general 10.1 Workmanship 10.2 Protection against weather |
| 29 | 10.3 Concrete mix 10.4 Use of calcium aluminate cement (high alumina cement) 10.5 Pumping concrete 10.6 Compacting and levelling 10.7 Finishing the surface |
| 30 | 10.8 Curing 10.9 Surface treatment |
| 31 | 10.10 Protection of the surface 11 Work on site: wearing screeds 11.1 Preparation of the base |
| 32 | 11.2 Batching and mixing 11.3 Laying wearing screeds on stairs 12 Inspection and testing of wearing surfaces 12.1 Inspection 12.2 Testing |
| 33 | 13 Maintenance |
| 34 | Annex A (normative) Methods for assessing levels and surface regularity Figure A.1 Stainless steel slip gauges for checking surface regularity |
| 35 | Annex B (normative) Determination of the abrasion resistance value (ARV) B.1 Principle B.2 Apparatus B.2.1 B.2.2 Marking out template B.2.3 Depth gauge B.2.4 Steel shim |
| 36 | Figure B.1 Concrete abrasion test machine, wheel arrangement and template |
| 37 | B.3 Selection of test area B.4 Setting up procedure B.4.1 Depth gauge B.4.2 Test locations B.5 Test procedure B.5.1 B.5.2 B.5.3 |
| 38 | B.5.4 B.6 Test report Annex C (normative) Curing recommendations for different cement types |
