BS 7533-101:2021 pdf free download – Pavements constructed with clay, concrete or natural stone paving units Part 101: Code of practice for the structural design of pavements using modular paving units.
The light reflection value (LRV) of paving units and contrast between adjacent paving units can be important when considering access by blind and partially sighted people, particularly around steps, ramps and road crossings. Guidance on LRV is contained within BS 8300.
5.7.1 Concrete blocks
5.7.1.1 General
Concrete blocks should be produced in accordance with BS EN 1338.
Unlike stone setts, dimensions should be stated as Length (L) x Width (W) x Thickness DJ, e.g. 200 mm (U x 100 mm (W) x 65 mm (D).
NOTE in this context, “D” refers to the thickness of the block.
5.7.1.2 Weathering resistance
In areas subject to regular treatment with de-icing salts the weathering resistance should be Class 3 in accordance with BS EN 1338:2003, Table 4.2.
In areas subject to freeze/thaw without regular treatment with de-icing salts, the minimum weathering resistance should be Class 2 in accordance with BS EN 13 38:2003, Table 4.1.
In areas not subject to freeze/thaw, the minimum weathering resistance should be Class 1 in accordance with BS EN 1338:200 3, Table 4.1.
5.7.1.3 Abrasion resistance
In areas subject to intensive pedestrian and vehicular traffic, the abrasion resistance should be Class 4 in accordance with BS EN 1338:2 003, Table 5.
In areas subject to normal pedestrian and vehicle use (e.g. public footpaths and roads) the minimum abrasion resistance should be Class 3 in accordance with BS EN 133 8:2003, Table 5.
In areas subject to light pedestrian and vehicular use (e.g. gardens, drives) the minimum abrasion resistance should be Class 1 in accordance with BS EN 1338:2003, Table 5.
NOTE intensive pedestrian traffic refers to areas expected to receive over 500 million pedestrians in the life of the pavement. Examples would be busy commuter stations, airports and large shopping malls. intensive vehicular traffic refers to traffic categories 7—9 in Table 2a and Table 2b.
5.7.1.4 Slip/Skid resistance
Slip/skid resistance should be in accordance with 4.3.
5.7.2 Concrete flags
5.7.2.1 General
Concrete flags should be produced in accordance with BS EN 1339.
NOTE The characteristic bending strength is used in the design of the pavement surface course. See 6.6.
Unlike stone slabs, dimensions should be stated as Length (L) x Width (W) x Thickness (D), e.g. 450 mm (L) x 300 mm (W) x 65 mm (D).
NOTE In this context, “D” refers to the thickness of the flag.
5.7.2.2 Weathering resistance
In areas subject to regular treatment with de-icing salts the weathering resistance should be Class 3 in accordance with BS EN 1339:2 003, Table 4.2.
In areas subject to freeze/thaw without regular treatment with de-icing salts, the minimum weathering resistance should be Class 2 in accordance with BS EN 1339:2003, Table 4.1.
In areas not subject to freeze/thaw, the minimum weathering resistance should be Class 1 in accordance with BS EN 1339:2 003, Table 4.1.
5.7.2.3 Abrasion resistance
In areas subject to intensive pedestrian and vehicular traffic, the abrasion resistance should be Class 4 in accordance with BS EN 1339:2003, Table 6.
In areas subject to normal pedestrian and vehicle use (e.g. public footpaths and roads) the minimum abrasion resistance should be Class 3 in accordance with BS EN 13 39:2003, Table 6.
In areas subject to light pedestrian and vehicular use (e.g. gardens, drives) the minimum abrasion resistance should be Class 1 in accordance with BS EN 1339:2 003, Table 6.
NOTE Intensive pedestrian traffic refers to areas expected to receive over 500 million pedestrians in the life of the pavement. Examples would be busy commuter stations, airports and large shopping malls. Intensive vehicular traffic refers to traffic categories 7—9 in Table 2a and Table 2b.