The WMM roads are said to be more durable. The WMM roads get dry fast and can be opened for traffic within less time as compared to the WBM roads, which take about one month for getting dry. WMM roads are soon-ready to be blacktopped with the Bituminous layers. WMM roads are constructed at a faster rate.

What is wet mix macadam?

Wet Mix Macadam(WMM) work includes laying and compacting clean, crushed, graded aggregate and granular material, premixed with water, to a dense mass on a prepared GSB layer or existing pavement as per the requirement of the project.

What is the difference between GSB and WMM?

The prime work of GSB is drainage system and secondary to support the load transfer to the sub-grade. WMM is a part of designed road section, thickness arrived from design calculations to withstand design load and ultimate transfer to sub0grade.