Bituminous macadam, Civil Engineering

Bituminous Macadam:

Bituminous Macadam (BM) is a base course in which coarse aggregates are mixed with a bituminous binder. The mix is open-graded with 20-25 per cent voids. Two gradings are used :

Grading 1

Nominal size of aggregates 40 mm Thickness of layer 75-100 mm Binder content : 3.1-3.4 per cent

Grading 2

Nominal size of aggregates 19 mm Thickness of layer 50-75 mm Binder content : 3.3 to 3.5 per cent

The binder used is 60/70 penetration grade bitumen. The mixing is done in a hot-mix plant and the laying is done by a paver finisher. Rolling is done by a 80-100 kN vibratory roller.

Posted Date: 1/22/2013 4:46:52 AM | Location : United States







Related Discussions:- Bituminous macadam, Assignment Help, Ask Question on Bituminous macadam, Get Answer, Expert's Help, Bituminous macadam Discussions

Write discussion on Bituminous macadam
Your posts are moderated
Related Questions
#how the result of DETERMINATION OF THE 10 PERCENT FINES value can be interprited?

What is W.M.M. roads? Where its used ?

Dead weight Dead loads are the weight of permanent components of the structures such as the weight of the elements and spheres, casing weight, weight of the false ceiling a


What is the Design Mix concrete Determination of  the proportions of  cement, aggregates and water to  achieve the required strengths in concrete is made by designing  the  con

Explain the Operating Point - Pumping System Intersection of the characteristic curve and the system curve. This is the head and flow rate data for the pump "operation". The op

i am facing some problem in solving the problem of elongation due to self weight suspended from fixed support in the conical bar


what are tie lines? explain in detail

What is the Long Term Effects - Concrete Long term effects of  loads on structures consider all the effects including creep and shrinkage.