Answer / manish vikram singh shekhawat

Water Bound Macadam (WBM) is a base corse and mixing of
binding material such as mooram, Cley soil etc. A layer of
Stone By Grade (90mm to 63mm or 63mm to 40mm) and compress
to it as a Dry Roll by Roller and than alayer of binding
material placed on it and Fully water than again compaction
by Roller

Answer / hurmaz

water bound macadam is a base course having stone dust
mixed in it, the main difference in base course and water
bound is that basecourse have no stone dust in it , where
as in case of waterbound macadams water proofing is done by
providing a layer of stone dust over a layer of basecourse,

Answer / manjunath.a.s

Water Bound Macadam shall consists material of clean crushed coarse aggregates mechanically interlocked by rolling so that the voids are filled by screening n binding materials with assistance of water,laid on sub grade,sub base or base course or on existing road surface based on requirements.

Answer / ashok ranjan

The roads having its wearing surface consisting of clean, crushed aggregates ,mechanically interlocked by rolling and bound together with filter material and water laid on a prepaid base course is called as wbm roads

Answer / jayanta kumar choudhury

Stone aggregates of size 4omm to 50mm are first laid at a thickness of 100mm  on d sub base. Then it is dry rolled . After that screening is spread n again dry rolled til maximum void is filled by screening materials. After that water is poured so that maxiumum screening fills  d voids . After that rolling starts n water is contiuously poured over d wheel of d roller . During this process screening is  sprinkled n d process continues til d water starts to run in front of wheel. It implies that d voids r completely sealed n water cannot enter d layer . Wbm is complete 

Answer / faisal

pavement base course made of broken or crushed aggregate mechanically interlocked by action of rolling and the voids filled with screening and binding material with the help of water.

Answer / sandeep brar

It consists of broken pieces of stones of size varying from 25 mm to 75 mm that are laid in three layers on prepared sub-grade. The bigger sized stones are laid in that bottom course.

Answer / jahane jannat khan

The broken stones of base and surface course,if any are bound by the stone dust is presence of moisture is called WBM Roads. WBM Stands for Water Bound Macadam which is the most commonly used road construction procedure for over more than 190 years.Pioneered by Scottish Engineer John Loudon McAdam around 1820 Macadam is a type of Road Construction.

Answer / ravi patil

IN WBM Road Water is Used as a Bonding agent For The
Material Like Soil , Murum , Metal while Compacting The
Road ...

Answer / imran

The crushed stones are laid, shaped and compacted and then finer materials (Stone Dust) are added and washed into surface to provide a dense material

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