density of compacted quarry dust

The density of compacted quarry dust is a critical parameter in various construction and engineering applications. Quarry dust, a byproduct of crushing stone, is often used as a substitute for sand in concrete mixes, road base materials, and fill applications. When compacted, its density can significantly influence the strength and stability of the structure it supports.

Typically, the density of compacted quarry dust ranges between 1.75 to 2.0 metric tons per cubic meter (t/m³), depending on factors such as particle size distribution, moisture content, and compaction effort. Finer particles tend to pack more tightly, resulting in higher densities, while coarser dust may require additional compaction energy to achieve optimal density. The moisture content plays a crucial role; too little moisture can lead to poor compaction, while excessive moisture may cause particle separation and reduced density.

Laboratory tests, such as the Proctor compaction test, are commonly used to determine the maximum dry density (MDD) and optimum moisture content (OMC) of quarry dust. These tests help engineers tailor the material's properties to meet specific project requirements. In practice, achieving the desired density often involves using vibratory rollers or plate compactors to ensure uniform compaction across the layer.

Understanding the density of compacted quarry dust is essential for ensuring long-term performance in construction projects. Properly compacted quarry dust provides excellent load-bearing capacity and reduces settlement risks, making it a reliable choice for sub-base layers and embankments.