TY - GEN
T1 - An implementation of the illinois flexibility index testing protocol for balanced asphalt mix designs
AU - Barry, M. K.
AU - Al-Qadi, I. L.
AU - Ozer, H.
AU - Safi, F.
N1 - Publisher Copyright:
© 2017 Taylor & Francis Group, London.
PY - 2017
Y1 - 2017
N2 - The Illinois Flexibility Index Test, or I-FIT, was developed specifically to analyze the flexibility and cracking potential of asphalt mixtures. The introduction of recycled materials, such as Reclaimed Asphalt Pavement (RAP) and Recycled Asphalt Shingles (RAS), has increased mixture brittleness to unacceptable levels, leading to increased cracking. The I-FIT method is ideal for identifying potentially brittle mixes and analyzing acceptable flexibility in recycled mixes. The results from mixes with varying levels of RAP and RAS content is presented in this paper. Materials with low recycled content often have Flexibility Index (FI) values above 10, while mixes with high recycled content and proven high cracking potential often haveFI values below 4. The I-FIT method combined with the Hamburg Wheel Tracking (HWT) test, which quantifies rutting potential, can ensure a balanced mix design, which will resist both rutting and cracking failure.
AB - The Illinois Flexibility Index Test, or I-FIT, was developed specifically to analyze the flexibility and cracking potential of asphalt mixtures. The introduction of recycled materials, such as Reclaimed Asphalt Pavement (RAP) and Recycled Asphalt Shingles (RAS), has increased mixture brittleness to unacceptable levels, leading to increased cracking. The I-FIT method is ideal for identifying potentially brittle mixes and analyzing acceptable flexibility in recycled mixes. The results from mixes with varying levels of RAP and RAS content is presented in this paper. Materials with low recycled content often have Flexibility Index (FI) values above 10, while mixes with high recycled content and proven high cracking potential often haveFI values below 4. The I-FIT method combined with the Hamburg Wheel Tracking (HWT) test, which quantifies rutting potential, can ensure a balanced mix design, which will resist both rutting and cracking failure.
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U2 - 10.1201/9781315100333-32
DO - 10.1201/9781315100333-32
M3 - Conference contribution
AN - SCOPUS:85058528546
SN - 9781138295957
T3 - Bearing Capacity of Roads, Railways and Airfields - Proceedings of the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017
SP - 217
EP - 221
BT - Bearing Capacity of Roads, Railways and Airfields - Proceedings of the 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017
A2 - Loizos, Andreas
A2 - Al-Qadi, Imad L.
A2 - Scarpas, A. Tom
PB - CRC Press/Balkema
T2 - 10th International Conference on the Bearing Capacity of Roads, Railways and Airfields, BCRRA 2017
Y2 - 28 June 2017 through 30 June 2017
ER -