Pawan Kumar
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Pawan Kumar has a total of 4 co-authors. Here are the top co-authors by number of shared publications:
- Satish Chandra
Indian Institute of Technology Roorkee
2 shared publications - P. K. Sikdar
Central Road Research Institute , New Delhi , India
1 shared publication - Sunil Bose
Central Road Research Institute , New Delhi , India
1 shared publication - Sunil Bose
Central Road Research Institute , New Delhi, India
1 shared publication
Latest Publications
- 30 January 2007
- Published by Taylor & Francis in International Journal of Pavement Engineering
- Vol. 8 (1) , 11-18
Laboratory investigations on SMA mixes with different additives
Fibers are conventionally used as stabilizers in the construction of Stone Matrix Asphalt (SMA) pavements. These fibers are not manufactured in India and are imported from Germany. Naturally occurring jute fibers were coated with low viscosity binder and were used in the present study as an alternative to the patented fibers. Use of crumb rubber modified binder (CRMB) is also investigated as stabilizer in SMA mixes. The performance of these mix were evaluated by conducting draindown by two different methods, moisture susceptibility test, durability test, rutting test and fatigue life tests. German draindown test is not suitable for modified binder. NCAT basket test is better in evaluating mixes prepared with both stabilizers. The results of mix prepared with indigenously available fibers are comparable to the patented fibers. Mix prepared with modified binder alone provides encouraging results.
- 30 January 2007
- Published by Taylor & Francis in International Journal of Pavement Engineering
- Vol. 8 (1) , 11-18
Laboratory investigations on SMA mixes with different additives
Fibers are conventionally used as stabilizers in the construction of Stone Matrix Asphalt (SMA) pavements. These fibers are not manufactured in India and are imported from Germany. Naturally occurring jute fibers were coated with low viscosity binder and were used in the present study as an alternative to the patented fibers. Use of crumb rubber modified binder (CRMB) is also investigated as stabilizer in SMA mixes. The performance of these mix were evaluated by conducting draindown by two different methods, moisture susceptibility test, durability test, rutting test and fatigue life tests. German draindown test is not suitable for modified binder. NCAT basket test is better in evaluating mixes prepared with both stabilizers. The results of mix prepared with indigenously available fibers are comparable to the patented fibers. Mix prepared with modified binder alone provides encouraging results.
- 1 January 2004
- Published by Taylor & Francis in Road Materials and Pavement Design
- Vol. 5 (2) , 239-249
Use of Jute Fibre in Stone Matrix Asphalt
Synthetic fibres are conventionally used in the construction of Stone Matrix Asphalt (SMA) in bituminous pavements. The synthetic fibres are not manufactured in India and are imported at a higher cost. As an alternative to synthetic fibre, coated jute fibres were used and its properties were studied. The paper presents details of the laboratory investigations carried out to determine the feasibility of use of natural fibre vis-a-vis synthetic fibre in bituminous gap graded mix. The performance of these mix were evaluated by conducting moisture susceptibility test, rutting test, accumulated strain and creep modulus and stiffness modulus. The test results indicated that the natural jute fibre can replace synthetic fibres in SMA mixture. A slightly higher accumulated strain and subsequently slightly lower creep modulus were observed as compared to SMA with synthetic fibre at 40°C and 50°C temperatures. However, Hamburg wheel test results indicated that permanent deformation is same in both fibres. The stiffness modulus of the SMA with natural fibre is slightly lower as compared to SMA with synthetic fibre at 25°C and 35°C temperatures. The tensile strength ratio for both mixes is more than the prescribed limits. However, the construction cost of the SMA with natural fibre per metric ton is comparatively lower.
- 1 January 2004
- Published by Taylor & Francis in Road Materials and Pavement Design
- Vol. 5 (2) , 239-249
Use of Jute Fibre in Stone Matrix Asphalt
Synthetic fibres are conventionally used in the construction of Stone Matrix Asphalt (SMA) in bituminous pavements. The synthetic fibres are not manufactured in India and are imported at a higher cost. As an alternative to synthetic fibre, coated jute fibres were used and its properties were studied. The paper presents details of the laboratory investigations carried out to determine the feasibility of use of natural fibre vis-a-vis synthetic fibre in bituminous gap graded mix. The performance of these mix were evaluated by conducting moisture susceptibility test, rutting test, accumulated strain and creep modulus and stiffness modulus. The test results indicated that the natural jute fibre can replace synthetic fibres in SMA mixture. A slightly higher accumulated strain and subsequently slightly lower creep modulus were observed as compared to SMA with synthetic fibre at 40°C and 50°C temperatures. However, Hamburg wheel test results indicated that permanent deformation is same in both fibres. The stiffness modulus of the SMA with natural fibre is slightly lower as compared to SMA with synthetic fibre at 25°C and 35°C temperatures. The tensile strength ratio for both mixes is more than the prescribed limits. However, the construction cost of the SMA with natural fibre per metric ton is comparatively lower.