This study presents the results of research on the stress behavior of rigid pavement concrete slabs by varying CBR subgrade values. It aims to know the effect of changing the rigid pavement strss. Data used in this study are geometric data and material properties of the pavement structure. The load vehicle considered is National Road class standard. Rigid pavement is very sensitive with un-uniformity of underlaying supposrt. In this research, the effect of un-uniform support of subgrade was modeled numerically using Abaqus software. The friction coefficient of each layer was also considered in the model. Model simulation of existing rigid pavement calculated 13 variations of CBR values. Result shown that there is a stress increment by 26.27% in the longitudinal direction of the rigid pavement between models with uniform variations of CBR and models with non-uniform variations of CBR. This result show the sensitivity of rigid pavement to un-uniformity of subgrade.

Pavement; CBR; Subgrade; Stress

Amakye, S. Y. O., Abbey, S. J., & Booth, C. A. (2022). Road pavement defect investigation using treated and untreated expansive road subgrade materials with varying plasticity index. Transportation Engineering, 9, 100123. https://doi.org/10.1016/j.treng.2022.100123

Baadiga, R., Balunaini, U. (2023). Evaluation of pavement design input parameters of biaxial and triaxial geogrid stabilized flexible pavements overlying soft subgrades. Cleaner Materials, 9, 100192. https://doi.org/10.1016/j.clema.2023.100192

Brand, A. S., Roesler, J., Chavan, H. L., & Evangelista, F. J. (2013). Effects of a Non- Uniform Subgrade Support on the Response of Concrete Pavement, Report Departement, Iowa: Iowa University.

Chou, J.S. (2009). Web-based CBR system applied to early cost budgeting for pavement maintenance project. Expert Systems with Applications, 36(2), 2947–2960. https://doi.org/10.1016/j.eswa.2008.01.025

Delatte, N. (2008). Concrete Pavement Design, Construction, and Performance. New York : Taylor & Francis.

Hardiyatmo, H. C. (2015). Perancangan Perkerasan Jalan dan Penyelidikan Tanah. Yogyakarta: Gadjah Mada University Press.

Hu, Y., Zhu, H., Li, J. (2023). Effect of solution road Romix Soilfix on deformation performance of granular base material: A laboratory and field investigation. Construction and Building Materials, 393, 131894.https://doi.org/10.1016/j.conbuildmat.2023.131894

Klekovkina, M., Gorshkov, V., & Lialinov, A. (2017). Development of Methods for Evaluating the Impact of Stress-Strain State Uniformity of Composite Pavements on Road Safety. Transportation Research Procedia, 20, 301-304. https://doi.org/10.1016/j.trpro.2017.01.027

Luo, W., Wang, K. C. P., Li, L., Li, Q. J., & Moravec, M. (2014). Surface Drainage Evaluation for Rigid Pavements Using an Inertial Measurement Unit and 1-mm Three-Dimensional Texture Data. Transportation Research Record, 2457(1), 121–128. https://doi.org/10.3141/2457-13

Lv,S., Tan, L., Peng, X., Hu, L., Liu, H., Yuan, J., Wang, S. (2021). Fatigue resistance design of rubberized asphalt mixture pavement under three-dimensional stress state. Construction and Building Materials, 307, 125138. https://doi.org/10.1016/j.conbuildmat.2021.125138

Mahfuda, A., Siswosukarto, S., Suhendro, B., (2023). The Influence of Temperature Variations on Rigid Pavement Concrete Slabs. Journal of the Civil Engineering Forum, May 2023, 9(2):139-150. https://doi.org/10.22146/jcef.5744

Mascio, P.D., Moretti, L., Capannolo, A. (2019). Concrete block pavements in urban and local roads: Analysis of stress-strain condition and proposal for a catalogue. Journal of Traffic and Transportation Engineering (English Edition), 6(6), 557-566. https://doi.org/10.1016/j.jtte.2018.06.003

Pasetto, M. Giacomello, G. Baliello, A., Pasquini, E. (2023). An Italian road pavement design method for bus lanes: proposal and application to case studies. Transportation Research Procedia, 69, 847-854. https://doi.org/10.1016/j.trpro.2023.02.244

Pradhan, S.K & Biswal, G. (2021). Utilization of reclaimed asphalt pavement (RAP) as granular sub-base material in road construction. Materials today: proceedings, 60(1), 288-293 https://doi.org/10.1016/j.matpr.2021.12.564

Prawesti, P., Suhendro, B., Hapsoro, S. (2019). Evaluation of rigid pavement on apron of terminal 3 Soekarno-Hatta International Airport using finite element method. MATEC Web of Conferences 270, 03005, 2019. https://doi.org/10.1051/matecconf/201927003005

Praveen, G. V., Kurre, P., & Chandrabai, T. (2020). Improvement of California Bearing Ratio (CBR) value of Steel Fiber reinforced Cement modified Marginal Soil for pavement subgrade admixed with Fly Ash. Materials today: proceedings. https://doi.org/10.1016/j.matpr.2020.08.814

Saffar, A. K. K. Al, Behaya, S. A. M., Jassim, H. S. H., & Ajam, H. K. K. (2021). Empirical Equation Correlate California Bearing Ratio (CBR) with Dry Density for Granular Soil. Academia.Edu, 10(07), 300–303.

Saniga, A.M., Rajish, A., Shankar, S., Vishnu, R. (2023). Optimal pavement maintenance and management strategies for flood affected low volume rural roads. Materials today: Proceedings. https://doi.org/10.1016/j.matpr.2023.05.187

Shen, Z.,Liu, B., Zhou, G. (2022). Stressing state analysis of concrete airport pavement by modeling experimental strain data. Case Studies in Construction Materials, 17, e01635. https://doi.org/10.1016/j.cscm.2022.e01635

Titus-Glover, L., Mallela, J., Darter, M., Voigt, G., Waalkes, S. (2005). Enhanced Portland Cement Concrete Fatigue Model for StreetPave. Transportation Research Record: Journal of the Transportation Research Board, 1919, 29-37. 10.1177/0361198105191900104.

Toribio, J., Tino, R., González, B., Franco, M., Carlos,J. (2022). Structural integrity of hot bituminous mixtures for road pavements: mechanical and environmental factors governing fatigue & fracture. Procedia Structural Integrity, 37, 985-988. https://doi.org/10.1016/j.prostr.2022.02.034

Vishwakarma, R. J., & Ingle, R. K. (2020). Effect of non-uniform soil subgrade on critical stresses in concrete pavement-Lecture Notes in Civil Engineering. Singapore: Springer.

Zokaei-Ashtiani, A., Carrasco, C., & Nazarian, S. (2014). Finite element modeling of slab–foundation interaction on rigid pavement applications. Computers and Geotechnics, 62, 118–127. https://doi.org/10.1016/j.compgeo.2014.07.003