The impact of polypropylene fibre addition on the CBR value

• Autorzy: Dobrzycki Patryk

Identyfikatory

DOI

10.2478/acee-2023-0017

• Języki publikacji: EN

Abstrakty

EN

The classic test for soil or aggregate bearing capacity in road construction is the CBR test. The results of the CBR were determined for gravelly sand and sand with the addition of 1.5% cement, as well as for their mixtures with 18 mm long polypropylene fibres in the amounts of 0.1%, 0.2% and 0.3%. The effect of compaction and time of curing of samples stabilised with hydraulic binder were also determined. The natural soil without cement and fibre additions had relatively high CBR values. The additions of 0.1% and 0.2% polypropylene fibres to the dry mass of the soil resulted in an approximately 2-fold increase in the CBR value for the samples compacted using the standard method. Increasing the amount of fibres to 0.3% caused a reduction in the CBR value to that obtained without fibre addition. For samples compacted using the modified Proctor method, the observations are different. Only the sample with 0.2% fibre addition achieved a slightly higher CBR value. Moreover, the addition of 1.5% cement and the length of treatment increased the CBR values.

Słowa kluczowe

EN

California bearing ratio; cement stabilization; polypropylene fibre; soil compaction

PL

kalifornijski współczynnik nośności; stabilizacja cementem; włókna polipropylenowe; zagęszczanie gruntu

• Wydawca: Silesian University of Technology
• Czasopismo: Architecture Civil Engineering Environment
• Rocznik: 2023
• Tom: Vol. 16, no. 2
• Strony: 81--88
• Opis fizyczny: Bibliogr. 24 poz.

Twórcy

autor

Dobrzycki Patryk

• MSc; Faculty of Civil Engineering and Environmental Sciences, Bialystok University of Technology, ul. Wiejska 45E,Bialystok 15-351

Bibliografia

• [1] Hassan, M.J., Alshameri B., & Iqbal, F. (2022). Prediction of California Bearing Ratio (CBR) Using Index Soil Properties and Compaction Parameters of Low Plastic Fine-Grained Soil. Transportation Infrastructure Geotechnology, 9, 764–776.
• [2] Brown, S.F. (1996). Soil mechanics in pavement engineering. Gėotechnique, 46(3), 383–426.
• [3] Zabielska-Adamska, K., & Sulewska, M.J. (2015). Dynamic CBR test to assess the soil compaction. Journal of Testing and Evaluation, 43(5), 1028–1036.
• [4] Shooshpasha, I., & Shirvani, R. A. (2014). Effect of cement stabilization on geotechnical properties of sandy soils. Geomechanics and Engineering, 8(1), 17–31.
• [5] Yang, H. (2012). Experimental Study on Mechanical Property of Soil-Cement. Proceedings of the 2nd International Conference on Electronic & Mechanical Engineering and Information Technology (EMEIT), 4, 790–793.
• [6] Choobbasti, A.J., Vafaei, A., & Kutanaei, S.S. (2015). Mechanical Properties of Sandy Soil Improved with Cement and Nanosilica. Open Engineering, 5(1), 111–116.
• [7] Okonkwo, V.O., & Nwokike, V.M. (2015). Soil-Cement Stabilization For Road Pavement Using Soils Obtained From Agu-Awka In Anambra State. Journal of Multidisciplinary Engineering Science and Technology, 2(10), 2668–2670.
• [8] Babu, N., & Poulose, E. (2018). Effect of lime on soil properties a review. International Research Journal of Engineering and Technology, 5(11), 606–610.
• [9] Utami, G.S. (2014). Clay soil stabilization with lime effect the value CBR and swelling. ARPN Journal of Engineering and Applied Sciences, 9(10), 1744–1748.
• [10] Li, Ch. (2005). Mechanical response of fiber-reinforced soil. Austin: University of Texas.
• [11] Silva Dos Santos, A.P., Consoli, N.C., & Budet, B.A. (2010). The mechanics of fibre-reinforced sand. Geotechnique, 60(10), 1751–7656.
• [12] Babu, G.L.S., & Chouksey, S.K. (2011). Stress-stain response of plastic wase mixed soil. Waste Management, 31(3), 481–488.
• [13] Zabielska-Adamska, K., Dobrzycki, P., & Wasil, M. (2023). Estimation of Stiffness of Non-Cohesive Soil in Natural State and Improved by Fiber and/or Cement Addition under Different Load Conditions. Materials, 16(1), 417.
• [14] Chen, M., Shen, S.L., Arulrajah, A., Wu, H.N., & Hou D.W. (2015). Laboratory evaluation on the effectiveness of polypropylene fibers on the strength of fiber-reinforced and cement-stabilized Shanghai soft clay. Geotextiles and Geomembranes, 43(6), 515–523.
• [15] EN 933-1:2012. (2012). Tests for geometrical properties of aggregates – Part 1: Determination of particle size distribution – Sieving method. Brussels, Belgium: European Committee for Standardization.
• [16] EN ISO 14688-1:2018. (2018). Geotechnical Investigation and Testing. Identification and Classification of Soil. Identification and Description. ISO: Geneva, Switzerland.
• [17] EN ISO 14688-2:2018-05. (2018). Geotechnical investigation and testing – Identification and classification of soil – Part 2: Principles for a classification. ISO: Geneva, Switzerland.
• [18] Zabielska-Adamska, K., Wasil, M., & Dobrzycki, P. (2021). Resilient response of cement-treated coarse post-glacial soil to cyclic load. Materials, 14(21), 6495.
• [19] EN 13286-2:2010. (2010). Unbound and hydraulically bound mixtures - Part 2: Test methods for laboratory reference density and water content – Proctor compaction. European Committee for Standardization: Brussels, Belgium.
• [20] ASTM D1883-21. (2021). Standard test method for CBR (California Bearing Ratio) of laboratory-compacted soils. ASTM International: West Conshohocken, PA, USA.
• [21] EN 13286-47:2007. (2007). Unbound and hydraulically bound mixtures – Part 47: Test method for the determination of California bearing ratio, immediate bearing index and linear swelling. European Committee for Standardization: Brussels, Belgium.
• [22] Yetimoglu, T., & Salbas, O. (2003). A study on shear strength of sands reinforced with randomly distributed discrete fibers. Geotextiles and Geomembranes, 21(2), 103–110.
• [23] Michalowski, R.L., & Čermák, J. (2003). Triaxial compression of sand reinforced with fibers. Journal of Geotechnical and Geoenvironmental Engineering, 129(2), 125–136.
• [24] Wang, W., Lv, B., Zhang, C., Li, N., & Pu, S. (2022). Mechanical characteristics of lime-treated subgrade soil improved by polypropylene fiber and class F fly ash. Polymers, 14(14) 2921.