Grameen Sampark Final April 0... - pmgsy

More documents

Recommendations

Info

14 Guidelines for the use of Interlocking Concrete Block Pavement and Precast Blocks for Paving- Specification are now available in India for production of better quality paving blocks and construction of such pavements. Code of practice for laying and construction of Interlocking Concrete Block Pavements has been submitted to Bureau of Indian Standards, which will be very useful for Indian industries and highway professions for adoption of block pavement technology in India, on a large scale. ICBP technology can help in conservation of naturally occurring materials like soils, gravels and aggregates which are now becoming scarce due to large scale construction activities taking place throughout the country. ICBP technology can replace concrete pavements at least in case of low trafficked roads, to start with. Road departments and the construction industry must, therefore, seriously consider ICBP technology as a potential technology for the purpose of providing roads in the rural areas. References 1. Road Development Plan:2001, Ministry of Road Transport & Highways, Published by Indian Roads Congress, 2001. 2. Sikdar, P.K., Pradhan Mantri Gram Sadak Yojana A Mission for Rural Connectivity by All-Weather Grameen Sampark Roads, Indian Highways, Vol. 29, No. 5, May 2001. 3. Sikdar, P.K. Pradhan Mantri Gram Sadak Yojana For the People, By the People, Indian Highways, Vol. 30, No. 6, June 2002. 4. Sikdar, P.K., Sharma, S.D., Sood, V.K., (2004), “Interlocking Block Pavement For Sustainable Road Infrastructure For Cold Region”, International Conference on Sustainable Habitat For Cold Climates, Leh, India, September 16-18, 2004. 5. Sharma, S.D., Sikdar, P.K., Rao, Y.V., (2004) “Interlocking Concrete Block Pavements Its Prospects”, Seminar on Design, Construction and Maintenance of Cement Concrete Pavements, IRC, October, 2004. 6. Muraleedharan, T. and Nanda, P.K., (1992) “Application and Performance of Interlocking Concrete Block Pavement An Overview”. The Indian Concrete Journal, pp 395 -400, July 1992. 7. IRC SP: 63-2004 “Guidelines For Use of Interlocking Concrete Block Pavement” Indian Roads Congress. 8. “Indian Standard Specification for Precast Concrete Paver Blocks”, Bureau of Indian Standards, Modified 3rd Draft, January 2004. (Under Publication).
U. C. Sahoo*, M. Amaranatha Reddy** and K. Sudhakar Reddy*** If the selection of pavement layer thickness is dependent entirely on past experiences gathered about the performance of in-service pavements, the resulting design methods are usually termed as empirical methods. Even in these procedures, there is normally a distress mode selected (usually rutting) for designing thickness and will be selected based on the experience of pavements that have developed acceptable levels of rutting during their design life period. As these are not based on any fundamental mechanistic principles that govern the stress-strain behaviour of the pavement components, extrapolation of the design procedures has to be done to situations where new pavement materials are used, climatic conditions are different from those prevailing during past experience etc. Counting efforts are being made for rationalizing the pavement design procedures by reducing the empirical content and correlating the performance of the pavements with load associated behaviour of pavement Pradhan Mantri Gram Sadak Yojana Performance Criteria for Design of Low Volume Rural Roads components. Analytical tools are used in these methods to analyze pavement structures subjected to traffic loads. Hence, these methods are often called Analytical Design Methods or Mechanistic Methods or even Theoretical Methods. A more appropriate terminology would be rational Design Procedures as no design method can be purely analytical or theoretical, as the analytically determined parameters have to be correlated with the performance of the pavements, which can only come from experience. In these procedures, some mechanistic parameters (critical stresses, strains, deflections, etc.) that are considered to be causative of (or having strong correlation with) pavement distresses (fatigue cracking, permanent deformation, etc.) are identified and correlations are developed between these analytical parameters and pavement life. The common forms of structural distresses considered are fatigue cracking of bound layers and permanent deformation in different *Research Scholar, Civil Engineering Department, IIT Kharagpur (ucsahoo@civil.iitkgp.ernet.in) **Assistant Professor, Civil Engineering Department, IIT Kharagpur (manreddy@civil.iitkgp.ernet.in) ***Professor, Civil Engineering Department, IIT Kharagpur (ksreddy@civil.iitkgp.ernet.in) nd th Reprinted from the proceedings of National Conference on Rural Roads (22 to 24 May 07) New Delhi Grameen Sampark 15
Page 2 and 3: In this Issue Editorial 3 Potential
Page 4 and 5: 4 Potential Applications of Interlo
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 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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?