Grameen Sampark Final April 0... - pmgsy

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4 Potential Applications of Interlocking Concrete Block Paving in Rural Roads Construction Dr. S.D. Sharma*, B.M. Sharma**, Dr. P.K. Nanda*** Transport Infrastructure development in rural areas is absolutely essential for soci-economic upliftment of rural population. An adequate road transport system improves connectivity to the inaccessible areas and in turn facilitates smooth flow of goods and services. Rural roads also help the rural population in terms of increased mobility to schools, health centers, market centers and create more employment opportunities. They also provide accessibility to productive resources and physical mobility of raw materials, farm produce and other products, promote industrialization, increase the size of markets and create enhanced economic prosperity, etc. Economic developments brought about Grameen Sampark through increased mobility and accessibility turns into income-generating skills, increased income for rural workers, positive changes in socio-economic attitude and reduction in inequalities between different regions, leading to increased productivity on the whole. Provision of roads in rural areas is a gigantic task as about six lakh villages in India are scattered widely over a vast area of 33 lakh sq. km. The Government of India has been making sincere efforts in this direction and has implemented a number of rural development programmes since 1974, with development of rural roads as one of the major objectives. Prominent amongst these are : Minimum *Scientist, **Head (Pavement Evaluation Division) and ***Director, Central Road Research Institute, New Delhi nd th Reprinted from the proceeding of National Conference on Rural Roads (22 to 24 May 07) New Delhi
Needs Programme, National Rural Employment Programme, Rural Landless Employment Guarantee Programme, and Jawahar Rozgar Yojana. However, these programmes lacked science and technology contents / inputs and were primarily targeted as drought relief and employment guarantee as their main objectives. Due to these reasons, they had limited success in the overall development of rural roads. The lack of scientific planning and methods in creating rural infrastructure and the centralized nature of implementation proved to be impediments in creating durable rural roads, through such programmes. In tune with the objectives of Road Development Plan Vision (1), a national mission popularly known as “PMGSY” (Pradhan Mantri Gram Sadak Yojna), for achieving rural connectivity through provisions of allweather roads to remote villages was initiated in 2000 by the Government of India, with the overall objective of connecting all villages having population of more than 500 by the year 2007. This is an ambitious programme with far-reaching positive returns and consequences for the nation's economy, in general, and the rural economy, in particular. It is expected that, through the implementation of this programme, out of the 3,50,000 unconnected habitations, 1,60,000 habitations will be benefited, with construction of some 6,00,000 km of new all-weather roads. This will constitute an addition of 33 per cent to the existing 18,20,000 km of rural roads and 20 per cent to the existing network of 33,00,000 km of total roads in the country. The current estimate of total investments needed for this stupendous task is Rs.60,000 crores. It is estimated that the effective implementation of PMGSY would lead to three times increase in the per capita GDP (Gross Domestic Product) within one decade. Thus, the fulfillment of this programme will lead to a quantum jump in the nation's economy (2,3). Since the local selfgovernments are actively involved in the planning, designing and implementation of this programme, there is scope for people's participation at the grassroots levels and achievement of most of the objectives on the ground. Pradhan Mantri Gram Sadak Yojana The major difficulties being faced in implementation of this programme are the non-availability of good quality road building materials particularly the granular subbase and aggregates. In addition, transportation of other materials such as bitumen, steel and cement etc. also affect the cost and timely completion of projects due to the long haulage of these materials. Non-availability of skilled manpower in the rural areas is another important factor affecting the construction quality of rural roads. Keeping in view these problems, it is felt/ suggested that alternate techniques such as Interlocking Concrete Block Paving (ICBP) can have potentially large applications for construction of rural roads. It needs to be highlighted at this stage that the Panchayat Raj Department of Government of Haryana, has taken up a great initiative and have decided to construct rural streets within the village areas on a massive scale by using paving blocks technology. It is planned by the Govt. of Haryana to develop two villages as Ideal / Modal villages which will have roads constructed with paving blocks technology. Gradually, depending upon the success achieved, construction of rural roads in many more villages will be done using the technology of paving blocks. Grameen Sampark 5
Page 2 and 3: In this Issue Editorial 3 Potential
Page 6 and 7: 6 Interlocking Concrete Block Pavem
Page 8 and 9: 8 materials used for production of
Page 10 and 11: 10 Construction of Sub grade This i
Page 12 and 13: 12 Typical Pavement Compositions Ty
Page 14 and 15: 14 Guidelines for the use of In
Page 16 and 17: 16 layers due to repeated applicati
Page 18 and 19: 18 Subgrade Failure Criterion The b
Page 20 and 21: 20 A maximum of 50mm rut depth was
Page 22 and 23: 22 Stabilization of Soil Subgrade w
Page 24 and 25: 24 Changes in Cohesion and Direct
Page 26 and 27: 26 Increase in the C.B.R. value is
Page 28 and 29: 28 Laboratory Test (Under Vertical
Page 30 and 31: 30 Apart from the above, both faces
Page 32: News in Brief General Body Meeting

Grameen Sampark Final April 0... - pmgsy

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