Influence of Porosity and Cement Index on the Strength of Cement-Stabilized Soil

Abstract

The article is divided into four chapters: Introduction, Materials and Methods, Results, and Conclusions. It explores the potential for determining unconfined compressive strength (R_C) using porosity and the cementation index (n/C_i) as an alternative to the water-to-cement ratio (w/c) in surface stabilized soils. The study investigates three stabilized soil mixtures with cement contents of 3%, 5%, and 7%, each tested at moisture levels ranging from 6% to 11%. A comparison between the n/C_i and w/c indicators is presented, along with the calibration process for the n/C_i indicator. Furthermore, a detailed methodology for determining the n/C_i indicator is provided. The article also examines correlations between R_C and the secant modulus of elasticity (E₅₀). The findings contribute to the development of efficient methods for assessing the mechanical properties of surface-stabilized soils and demonstrate the practical application of the n/C_i indicator.