Choosing washed sand for a project often comes down to the need for a clean and consistently graded fine aggregate, free from excessive silt, clay, and organic matter. The washing process removes these impurities, which can interfere with bonding in concrete or mortar, impede drainage, or create instability in base layers. This clean nature makes washed sand ideal for applications requiring optimal performance and a predictable outcome, such as concrete production, masonry work, and as a leveling bed beneath pavers where a stable and uniform surface is crucial. The controlled particle size distribution also contributes to good workability and compaction, ensuring a reliable and long-lasting result for the intended application.
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Fill sand is the go-to choice when the primary need is to raise grade, fill in holes, or create a stable base without the stringent requirements of structural materials. Its value lies in its cost-effectiveness and ability to efficiently occupy large volumes. While it may contain a mix of soil, sand, clay, and small rocks and isn't typically screened or washed, this composition makes it ideal for non-structural applications where compaction and volume are key. Choosing fill sand allows for economical earthmoving and the creation of a suitable foundation for landscaping, building pads, or other projects where the underlying material needs to be built up or leveled without the expense associated with higher-grade aggregates.
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Choosing 1/4 x 10 sand for a project signifies a need for a small, granular material that offers a balance between stability and workability, though with more angularity than sand. This finely crushed rock, ranging from approximately 1/4 inch down to the size of coarse sand (passing through a #10 sieve), provides better interlock than sand due to its angular fragments, making it suitable for applications where some structural stability is required in a small aggregate. It can be used for pathways, or as a leveling course under pavers where a slightly more robust base than sand is desired. The controlled size gradation allows for good compaction and a relatively smooth surface compared to larger crushed rock, making it a versatile option for projects demanding a finer, yet structurally sound, granular material.
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