Medium Washed Shell (1 - 1 1/2")

Medium Washed Shell (1 - 1 1/2") - Technical Overview and Application Guide

Medium Washed Shell (1 - 1 1/2") is a naturally sourced aggregate composed mainly of crushed seashell fragments. Also known as Washed Shell, Medium Shell Aggregate, or Shell Gravel (medium size), this material features particle sizes ranging from 1 inch to 1.5 inches in diameter. The shells are thoroughly washed to remove dust and fines, resulting in a cleaner, off-white to light tan product. This washing process ensures the aggregate meets ASTM C33 standards for cleanliness and contains less than 5% fines.

The particle shape is angular to sub-angular, which helps the material lock together while maintaining good drainage. Medium Washed Shell is lightweight compared to traditional stone aggregates, with a bulk density of about 80-100 lbs per cubic foot and a specific gravity of approximately 2.5 to 2.7, depending on the shell type. The pH is generally neutral to slightly alkaline (7-8), and the product is free of organic debris. Sourced from coastal or marine dredging operations, the shells may contain biodegradable components, but these are stable when used in soil or landscape settings.

Key Characteristics of Medium Washed Shell

• Particle size: approximately 1" to 1.5" diameter
• Washed to remove fines and meet aggregate cleanliness standards
• Off-white to light tan color, angular texture
• Lightweight and easy to handle
• Good drainage and aeration properties
• Composed of stable, naturally sourced shell fragments

Typical Applications

• Decorative mulch or ground cover in landscaping
• Drainage layers for garden beds and planters
• Pathways and walkways for residential and commercial sites
• Base or sub-base material for light-duty paving and driveways
• Soil amendment for improved aeration and drainage
• Erosion control in coastal or shoreline projects
• Aquaculture and habitat restoration substrate
• Golf course bunker or pet enclosure substrate

Material Properties and Practical Use

Medium Washed Shell provides high permeability, allowing water to drain quickly through the layer. This makes it well-suited for areas with heavy rainfall or for use in green infrastructure where stormwater management is a concern. The angular nature of the shells allows for moderate compaction under foot or light vehicle traffic, maintaining a stable surface with minimal settling. Over time, natural abrasion causes the shells to break down, filling surface gaps and enhancing compactness. As the shells degrade, they release calcium carbonate and trace minerals, which can improve soil structure and benefit plant growth.

The product is typically used at a depth of 3 to 4 inches for footpaths and up to 6 inches for areas exposed to vehicle traffic. Installation should include a level, debris-free base. For heavier loads, a compacted sub-base of gravel or crushed stone is recommended. A geotextile fabric may be placed underneath to prevent mixing with the soil and to maintain drainage. Maintenance involves periodic raking and occasional replenishment to preserve surface integrity.

Important Limitations and Incorrect Applications

Medium Washed Shell should not be used as a structural concrete aggregate or as a heavy load-bearing base for roads and highways. It is not suitable for environments requiring non-biodegradable or chemically inert materials, or where acidic conditions could degrade shell material. The aggregate is not intended for use where uniform, crushed stone compaction is required.

Comparison Table: Medium Washed Shell vs. Other Aggregates

Guidelines for Ordering and Delivery

Gravelshop supplies Medium Washed Shell in bulk quantities for projects of any size. All prices listed include delivery, with no hidden fees. Orders can be placed online in less than a minute, and you can select your preferred morning or afternoon delivery slot. Our delivery service covers 31 U.S. states, and materials are sourced from local pits or yards to reduce cost and delivery time. Please ensure your delivery location is accessible for heavy trucks (minimum 12 feet wide). We deliver the material only and do not provide spreading or landscaping services.

For accurate pricing, enter your ZIP code on our website. The price shown includes all taxes and delivery charges. You can pay using major credit cards or digital payment options. After placing your order, you will receive a confirmation email with all details.

Sample Price Table for Medium Washed Shell Delivery

Prices for Medium Washed Shell vary by location. For example, in Placida, FL (ZIP 33946), the price per ton is $33 with a delivery charge of $170. In Fort Myers, FL (ZIP 33901), the price per ton is $61 with a delivery fee of $213. Delivery is available across the U.S., and rates depend on distance and local availability.

Summary Table: Technical Specifications

Ordering and Delivery Process with Gravelshop

Ordering Medium Washed Shell from Gravelshop is simple. Add the product to your cart, enter your ZIP code for precise pricing, select your delivery date and time, and pay online. All prices include delivery. We do not spread material or perform landscaping work. Delivery requires suitable truck access. Our customer support is available by phone, email, or SMS for any inquiries. You can cancel your order within 14 days, but fees may apply if the order is already processed or in transit.

Medium Washed Shell is available for bulk purchase in quantities from 2-5 tons/yards, depending on your location. Use our online calculator to estimate the amount needed for your project. Materials are delivered from the closest available source to minimize cost and ensure timely delivery.

Summary

Medium Washed Shell (1 - 1 1/2") is a versatile, lightweight aggregate suitable for decorative landscaping, drainage layers, pathways, and soil improvement. It is not suitable for structural concrete or heavy load-bearing applications. The material is easy to order and delivered directly to your site by Gravelshop, with transparent pricing and reliable service. For any questions about your order, delivery, or product suitability, contact our support team.