Highway Engineering

226 Highway Engineering

Concrete discharged to

loose surcharge level

Bottom course trimmed

and compacted

Top course of concrete

spread to final level

Surface protected by travelling

tentage

Dowel bars vibrated into

place

Longitudinal and transverse

joint crack inducers fixed

Side-tipping vehicle

Side-tipping vehicle

Separation membrane

laid

Longitudinal and transverse joint

crack inducers fixed

Bottom course

spreader

Bottom course

compactor

Dowel bar

placer

Top course

spreader

Top course trimmed,

compacted and screeded,

longitudinal joint formed and

sealed

Top course

compactor

Joint former Transverse joint formed

Surface screeded to

Final finisher final level

(diagonal beam)

Surface texture applied

(surface wire-brushed or

grooved). Curing membrane

applied.

Texturing and curing

sprayer

Travelling

tentage

Figure 7.19Diagrammatic representation of fixed-form paving train.