MANUAL 4 - Construction Industry Development Board

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MANUAL 4 – BITUMINOUS PAVEMENT SEALS • Concrete mixer 150/200 Photos 4.27 and 4.28 • Steel-framed stand for emulsion drums with steel or timber ramps (Photo 4.33) • 75 mm diameter ball valve for decanting emulsion from drums (Photo 4.33) • Motorised hand sprayer (Photo 4.29) • Suitably sized vibratory pedestrian roller (Bomag 75 or equivalent) • Spray screens (Workshop drawing LIC 007) (Photos 4.29 and 4.30) and (Figure 4.12) Photo 4.29: Spraying operation using motorised hand sprayer, with screens and reinforced paper in place IMPLEMENTING EMPLOYMENT INTENSIVE ROAD WORKS 53 MODULE 1 2 3 4 5 6 7
MODULE 1 2 3 4 5 6 7 MANUAL 4 – BITUMINOUS PAVEMENT SEALS Figure 4.12: Sketch of spray screen (Refer to Workshop drawing LIC 007) 4. Construction 4.1 Preparation of surface • Sweep the road clean. All loose material and mud that has been brought onto the surface by traffic must be removed. • Stake out width of road to be surfaced, marking out the edge of the road with a 7 mm sisal rope. • If necessary, lightly spray the surface with a diluted 1:8 emulsion (1 litre emulsion to 8 litres water). Normally with an ETB, this should only be necessary if the road has been exposed to traffic for an extended period. This application of emulsion and water could be regarded as lightly priming the surface (0,5 – 0,6 litres/m 2 of diluted Anionic stable-grade emulsion should be applied). • Protect any kerbs, drains, etc. from the emulsion spray. (Photo 4.30) • Use reinforced paper for the construction joints at the beginning and end of each spray. (Photo 4.31) Photo 4.30: Protection of kerbs, drains etc. IMPLEMENTING EMPLOYMENT INTENSIVE ROAD WORKS 54
Page 1 and 2: Implementing employment intensive r
Page 3 and 4: Implementing employment intensive r
Page 5 and 6: Overview of the practice manuals Th
Page 7 and 8: MANUAL 4: Bituminous pavement seals
Page 9 and 10: MODULE 1 2 3 4 5 6 7 MANUAL 4 - BIT
Page 13 and 14: MODULE 1 2 3 4 5 6 7 Note Do not ta
Page 35 and 36: MODULE 1 2 3 4 5 6 7 Rate of binder
Page 39 and 40: MODULE 1 2 3 4 5 6 7 6 MANUAL 4 - B
Page 41 and 42: MODULE 1 2 3 4 5 6 7 Typical spread
Page 47 and 48: MODULE 1 2 3 4 5 5.1 5.2 MANUAL 4 -
Page 51: MODULE 1 2 3 4 5 6 7 MANUAL 4 - BIT
Page 59 and 60: MODULE 1 2 3 4 5 6 7 Slurry seal wo
Page 69 and 70: MODULE 1 2 3 4 5 6 7 Rate of binder
Page 79 and 80: MODULE 1 2 3 4 5 6 7 Note MANUAL 4
Page 91 and 92: eferences The framework agreement f
Page 93 and 94: Notes

MANUAL 4 - Construction Industry Development Board

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