Oct - Dec 2009 • Vol. No. 32 Issue No. 2 • - L&T Construction

communication networks enroute are linked to project was to manage the heavy traffic and execute
various service and medical centres for easy the construction activities with utmost safety
access and immediate action. Commuters are also regulations. Through elaborate traffic management
provided with two rest areas including facilities which plan, different teams carried out construction at
houses trauma care units, restaurants, petrol pump remarkable speed without major disturbance to traffic
and garage. Two truck lay bays with wash room and even during the monsoon period.
drinking water facilities provide the much needed
comfort for the truck drivers.
Repetitive overlays on the erstwhile road over the
years had resulted in asphalt crust of thickness
L&T–VBTL designed, engineered, and financed varying from 400 to 700mm. This had to be milled,
this project. Construction work was carried out and the milled material was re-used in Wet Mix
by Infrastructure Operating Company - a part Macadan (WMM) and Granular Sub Base (GSB), thus
of L&T’s Construction Division. Operations avoiding the problems of space constraint and waste
and maintenance of this hi-tech highway is done accumulation.
by L&T-VBTL.
The CBR of soil was also improved from 2% to 20% by
During execution of the road work, L&T’s way of soil stabilization with lime method for sub-
Infrastructure Operating Company had to meet grade. To ensure good quality of lime (purity > 92%)
several challenges. The main challenge for the
two lime plants had to be installed at site.
Smooth drive on the hi-tech highway