Recapitulation

• The construction of concrete pavement involves construction of subgrade, sub-base/ base and the concrete slab.
• Subgrade preparation involves cleaning, earthwork (excavation or filling of soil, replacement of weak soil, soil stabilization etc.) and compaction.
• The various steps involved in cemented/concrete layer construction, depending on requirements, are spreading, trimming, compacting, jointing, finishing, curing, texturing etc. The construction cemented/ concrete is generally done by automated equipment, called paver.
• Pavers are of two types, fixed form and slip form. Slip-form paving machine is a self-propelled system that can perform paving in a synchronized manner through its feedback sensors.