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Granular River Sand

Updated: 2026-08-22

Overview

Granular river sand is a naturally occurring sedimentary material sourced from riverbeds and banks. It is composed primarily of silica (SiO2) and other minerals, shaped by water erosion over time. Its uniform grain size and smooth texture make it ideal for construction and industrial uses. Unlike manufactured sand, river sand is prized for its natural consistency and minimal processing requirements. It is commonly classified by particle size, ranging from fine (0.075-0.425 mm) to coarse (0.425-2 mm). Its availability and affordability contribute to its widespread use in B2B markets.

Physical and Chemical Properties

Granular river sand is characterized by its high silica content (typically 80-95%), which ensures durability and chemical inertness. Its density ranges from 1.4 to 1.6 g/cm³, and it is insoluble in water. The grains are angular to sub-rounded, providing excellent interlocking properties for construction applications. The material is non-reactive under normal conditions, making it suitable for use in concrete and mortar. Its low clay and silt content (<3%) enhances its performance in filtration systems. Color varies from light brown to gray, depending on mineral impurities like iron oxides.

Main Applications

In construction, granular river sand is a key ingredient in concrete, mortar, and plaster. Its uniform particle size improves workability and strength. Landscapers use it for drainage systems, golf course bunkers, and beach replenishment due to its aesthetic appeal and permeability. Water treatment plants utilize river sand as a filtration medium to remove suspended solids. Industrial applications include glass manufacturing, where high-purity silica sand is essential. It is also used in foundries for mold-making and in sports fields for improved traction.

Safety and Storage

While river sand is non-toxic, airborne dust generated during handling can pose respiratory risks. Workers should wear masks and goggles in dusty environments. Prolonged skin contact may cause dryness, so gloves are recommended. Storage requires protection from moisture and contaminants. Piles should be covered with tarps or stored in silos to prevent wind dispersal. Avoid mixing with soils or debris, as this can degrade quality. Regular moisture testing is advised for bulk storage to prevent clumping.

B2B Procurement Guide

B2B buyers should prioritize suppliers who provide certified lab reports for particle size distribution, silt content, and chemical composition. Bulk purchases typically offer cost savings, but transport logistics must be factored in due to the material's weight. Regional availability affects pricing; coastal areas often have lower costs. Consider long-term contracts with suppliers to lock in rates. For specialized applications (e.g., glass production), specify SiO2 content above 95%. Always inspect shipments for consistency and contamination before acceptance.

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