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Performance Evaluation Report on Rural Roads Constructed Using CRRI-Bitchem Cold Mix in Different District of Assam during 2008-2009

1.11 Advantages of Cold Mix Technology

The advantages of using Cold Mix Technology over traditional Hot Mix Technology are as under:

a) It can be used at any weather condition except rainy day..
b) The heating of binder and aggregate is eliminated.
c) It controls air pollution.
d) The thermal oxidative hardening of bitumen is checked while using this technology and thus
enhances service life of pavement.
e) It contains anti-stripping agent and reduce the water damage. It is beneficial in high rainfall and
snow bound area.
f) Ease in handling and laying of road surface with simple equipments which increase the work
output.
g) This can be used with damp aggregate.
h) The maintenance and construction of road are quite possible in rainy season and bad weather.
i) It saves energy and bitumen.

2.0 Need of the study

Pradhan Mantri Gram Sadak Yojana (PMGSY)

On the 15th August 2000, the Prime Minister announced a Centrally Sponsored Scheme called the Pradhan
Mantri Gram Sadak Yojana with the objective of connecting, within next three years, every village that has a
population of more than 1000 through good All-weather roads and every village of more than 500 persons
similarly connected by the year 2007. The Scheme was launched on 25th December 2000.

Assam State which is consisting of 23 Districts and a population of 266, 38,407 , 88% of which is inhabitant over
approximately 25000 villages spread over an area of 78438 Sq. kms is one of the most disadvantaged States in
terms of infrastructure development in the country. Almost 20% of its geographical area is hilly, it gets very heavy
rain fall and recurring floods caused extensive damage to the road infrastructure.

The total length of Rural roads network in Assam is 36544 kms. and has been in a very bad shape in the State. Poor
kutcha roads or even no roads to a large number of habitations have restricted communities from participating in
the benefits of development and have caused acute socio-economic isolation.
Under PMGSY, a total of 15,908 km of roads length sanctioned upto 2008-09 and completed to connect
habitations with 500 and 1,000 plus population. The State Rural development department is the nodal
department for the programme and the State PWD is the executing agency.

QSP/MR/19/ ACED/BTCM/214/2013 CSIR-NEIST/CNP-462