One of the biggest challenges of recent engineering is making it sustainable by implementing environmentally friendly and cost-effective solutions. An example of activity towards the development of a circular economy and sustainable materials management is the use of waste stone dust as a soil additive. Stone dust is a byproduct of crushing natural aggregates such as basalt, marble, granite, dolomite, and melaphyre. Due to its gradation and chemical composition, natural stone dust is commonly used in concrete and bituminous production, horticulture, and agriculture. Moreover, natural stone dust may be used as a soil stabilizer or admixture to embankment soils. The study aimed to investigate the effect of melaphyre, basalt, and granite dust as non-cohesive soil additive in terms of compaction characteristics. A series of standard Proctor compaction tests were performed. Samples with the addition of 5, 10, and 15% natural stone dust to the dry mass of soil were tested. The tests enabled the selection of the most beneficial type of stone dust and the determination of the most optimal percentage addition of admixture, considering compactibility characteristics.

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Effect of Waste Stone Dust on Compaction Characteristics of Non-cohesive Soils

  • Iwona Chmielewska

摘要

One of the biggest challenges of recent engineering is making it sustainable by implementing environmentally friendly and cost-effective solutions. An example of activity towards the development of a circular economy and sustainable materials management is the use of waste stone dust as a soil additive. Stone dust is a byproduct of crushing natural aggregates such as basalt, marble, granite, dolomite, and melaphyre. Due to its gradation and chemical composition, natural stone dust is commonly used in concrete and bituminous production, horticulture, and agriculture. Moreover, natural stone dust may be used as a soil stabilizer or admixture to embankment soils. The study aimed to investigate the effect of melaphyre, basalt, and granite dust as non-cohesive soil additive in terms of compaction characteristics. A series of standard Proctor compaction tests were performed. Samples with the addition of 5, 10, and 15% natural stone dust to the dry mass of soil were tested. The tests enabled the selection of the most beneficial type of stone dust and the determination of the most optimal percentage addition of admixture, considering compactibility characteristics.