Select Fill

Select Fill (Foundational Clay/Sand Mix): Product Overview

Select Fill, also known as Engineered Fill, Structural Fill, Controlled Fill, or Select Backfill, is a granular soil or aggregate material. It is designed for use in foundational and structural applications where compaction, stability, and cleanliness are required. The material is free of organic matter, debris, and large rocks, and is well-graded for compaction. Select Fill typically consists of sand, gravel, or crushed stone, and is sourced to meet project-specific requirements. Its low plasticity index and controlled moisture content make it suitable for a range of construction and landscaping projects.

Key Characteristics and Technical Specifications

• Granular composition: sand, gravel, or crushed stone
• Free of organic matter, clay lumps, and deleterious substances
• Maximum particle size usually less than 2 inches (varies by project)
• Low plasticity index for stability
• Moisture content controlled for optimal compaction
• Specified gradation and cleanliness per ASTM D2487 or local DOT standards
• Minimum compaction: typically 95% of Standard/Modified Proctor (ASTM D698/D1557)
• Maximum allowable fines: usually less than 10-15% passing #200 sieve

Select Fill is commonly used for structural foundation support, roadway and pavement subbase, backfill for retaining walls, pipe bedding, trench backfill, embankment construction, building pad preparation, under slab fill, and bridge abutment backfill. The material's well-graded nature and absence of organic contaminants ensure reliable performance under compressive loads and minimize settlement risks.

Common Applications

Installation and Preparation Guidelines

Proper installation of Select Fill involves placing the material in layers, typically not exceeding 6 to 8 inches in thickness. Each layer should be moisture-conditioned to the specified range before compaction. Use vibratory rollers or plate compactors to achieve the required density. Layered placement helps prevent large voids and ensures uniform compaction throughout the fill.

Important Limitations and Incorrect Applications

• Do not use Select Fill where high plasticity or organic soils are required
• Not suitable for drainage layers unless permeability is specified
• Not to be used as topsoil or landscaping soil
• Not appropriate for impermeable barriers or water retention
• Do not use if material is unverified or contaminated
• May not be suitable in areas with aggressive chemical exposure without prior testing

Select Fill is not intended for applications requiring high plasticity, organic content, or impermeable properties. It should not be used as surface soil for landscaping or as a substitute for specialized drainage materials unless specified. Always confirm material compliance with project specifications and perform laboratory testing when required.

Comparison with Related Materials

Pricing Examples Across the USA

Select Fill is available for delivery in many regions, with prices varying by location due to sourcing and transportation costs. Delivery is included in the total price. Below is a sample of pricing from different cities and counties. To see current pricing for your area, enter your ZIP code on the Gravelshop website. Prices reflect both the cost per ton and the delivery fee, ensuring transparency and ease of planning for your project.

Ordering, Delivery, and Support with Gravelshop

Ordering Select Fill through Gravelshop is straightforward. Prices shown on the website always include delivery. You can select your preferred delivery date and time during checkout. We supply material only and do not offer spreading or landscaping services. Our drivers will unload the material at the most suitable location based on access and site conditions. If you are not present at delivery, the material will be left at the location, and you assume responsibility for it.

To find the exact cost for your area, use the ZIP code tool on our website. Payments can be made online using major credit cards and digital payment methods. For questions or special requests, contact our support team by phone, email, or SMS. Gravelshop supplies aggregates in over 30 states, and all deliveries are handled by experienced local haulers. Please allow for up to 5% size variation and fines in your order.

Select Fill is best used where a clean, compactable, and stable base is needed for construction or landscaping. It is not suitable for topsoil, impermeable barriers, or areas needing high plasticity or organic content. Always follow project specifications and consult with a professional if laboratory testing or additional compliance is required.