University of Tehran Civil Engineering Infrastructures Journal 2322-2093 59 1 2026 06 01 A Study on Geotechnical Behavior of Municipal Solid Waste Ash Treated with Fiber and Cement 105 122 99112 10.22059/ceij.2024.375087.2049 EN Neelam Singh Research Scholar, Department of Civil Engineering, Central University of Haryana, Mahendergarh, India. 0000-0003-2973-4932 Vikas Kumar Assistant Professor, Department of Civil Engineering, Central University of Haryana, Mahendergarh, India. 0000-0003-4807-6584 Journal Article 2024 04 22 The geotechnical properties of untreated Municipal Solid Waste (MSW) ash and the MSW ash treated with fiber and cement were investigated through a series of laboratory tests including compaction, Unconfined Compressive Strength (UCS), and Split Tensile Strength (STS) with different mixing proportions of fiber and cement. The physical characteristics of MSW ash are similar to those of silty sand, with a specific gravity of 2.26. The combination of fiber and cement is capable of improving the compaction behavior of MSW ash by increasing its strength and reducing its tendency to deform or crack under the load. It is observed from the test study that the addition of 0.5% fiber of 12 mm length with 8% cement by weight of MSW ash mix gives the optimum result in terms of UCS and STS as compared to untreated MSW ash. The increment in cohesion (<em>c</em>) and angle of internal friction (<em>ϕ</em>) is associated with the increment in cement and fiber content, respectively. An improvement factor (<em>I_f</em>) is defined to determine the percentage increment in the value of UCS and STS. https://ceij.ut.ac.ir/article_99112_ad59566544352f19adce87108468deb4.pdf