PSI - Issue 70

Abhijeet Singh et al. / Procedia Structural Integrity 70 (2025) 611–618

613

maintaining environmental sustainability boundaries.

1.2. Problem Statement Construction companies seek renewable materials that replace traditional building elements because they want to diminish environmental damage and boost resource effectiveness. The waste stream from marble processing consists of large amounts of marble dust which requires proper environmental management. The analysis of marble dust as concrete filler material for rigid pavement applications, face several unknowns concerning its influence on the mechanical properties and workability mechanics within the concrete media. A tho rough study of marble dust’s impact on concrete attributes needs to be done when using it as a cement substitution to establish its optimum application quantity and identify possible construction related advantages. 1.3. Aim of Study The main purpose of this investigation focuses on determining how well the marble dust performs as a partial substitute for conventional cement within concrete for rigid pavement applications. An assessment of modified concrete ’s mechanical properties will be performed through analysis of compressive strength and split tensile strength properties. This research examines various marble dust concentrations in concrete mixture to establish the best percentage ratio which optimizes concrete block performance. This study aims to understand the benefits and sustainable aspects of marble dust usage as a building material while reducing environmental waste. 2. Methodology In this research study, the focus is on investigating the potential of using marble dust as a partial replacement for cement in concrete mix designs. The primary objective of this study is to evaluate how the incorporation of marble dust affects the properties of concrete, both in its fresh and hardened states. The selected grade of concrete for this experimental investigation is M-30. To assess the impact of marble dust, various proportions of marble dust were used as a partial replacement for cement. This research utilized marble dust percentages of 0%, 4%, 8%, 12% and 16% and 20%. The evaluation adopted these precise percentage measures to investigate multiple marble dust replacement amounts and their impact on concrete behaviour. The experimental analysis ran across two distinct phases which focused on testing concrete properties both before and after setting. The workability assessment of fresh concrete along with its consistency assessment started the first experimental phase. The investigation of concrete's hardened state took place during the second research stage. The compressive strength was evaluated at 7 and 28 days along with split tensile strength assessment at 28 days. Specimens containing different amounts of marble dust acquired evaluation against standard concrete specimens containing no marble dust. This research evaluates the influence of marble dust on the mechanical properties and workability behaviour of M-30 grade concrete. The results obtained will provide insights into whether marble dust can be used as an effective partial substitute for cement in concrete, potentially offering an eco-friendly solution to reduce cement consumption and improve sustainability in construction materials.