Pavement Quality Concrete (PQC):

Pavement Quality Concrete (PQC) is cement concrete made with large size aggregates in accordance with IRC specifications and laid over a dry lean concrete sub-base. This construction is used specifically for highway concrete pavements and for airport runway pavements as it can take heavy loads.

Construction of Cement Concrete Roads:

The steps in the construction of cement concrete roads are the following:

• Preparation of subgrade/sub-base
• Placing of formwork.
• Batching of materials
• Proportioning of the mix
• Preparation of the mix
• Transporting and laying the mix
• Compaction
• Joints
• Screeding and finishing the surface
• Curing
• Opening of traffic