#57 Limestone Gravel Gray (1/2 - 1")

#57 Limestone Gravel Gray (1/2" - 1") - Product Overview

#57 Limestone Gravel Gray, also called #57 Stone, #57 Crushed Limestone, #57 Gravel, or #57 Aggregate, is a widely used construction aggregate made from natural limestone rock. The gravel consists of angular, crushed stones with a size range from approximately 1/2 inch to 1 inch in diameter. The material is predominantly gray, though the exact shade can vary by quarry. Each batch is generally washed to remove fines and dust, resulting in a clean product suitable for a variety of structural and drainage applications.

This gravel is hard and durable, with a Mohs hardness of around 3 to 4, and is non-degradable under normal environmental conditions. It typically meets ASTM C33 standards for concrete aggregate when specified. The bulk density ranges from about 1.4 to 1.7 tons per cubic yard, depending on the source. Its angular shape allows for good interlock and stability, making it a preferred choice in many base and drainage applications.

Key Characteristics of #57 Limestone Gravel

• Size: 1/2" to 1" (passes 1" sieve, retained on 1/2" sieve)
• Shape: Angular, crushed, not rounded
• Color: Predominantly gray
• Material: Natural limestone
• Cleanliness: Washed, minimal fines
• Hardness: Mohs scale ~3-4
• Bulk Density: ~1.4-1.7 tons per cubic yard
• Absorption: Typically low
• Meets ASTM C33 (when specified)

The uniform size and angular structure of #57 Limestone Gravel provide effective drainage and load distribution. This makes it suitable for installations where both stability and water management are needed. The material does not compact as tightly as products with fines, such as crusher run.

Common Uses and Practical Applications

#57 Limestone Gravel Gray is commonly used as a base material for driveways, parking lots, and roadways. Its good drainage properties make it ideal for French drains, pipe bedding, and septic system drain fields. It is also used as a concrete aggregate, backfill for retaining walls, erosion control, and sometimes as railroad ballast. In landscaping, it serves as a mulch or ground cover where permeability and stability are required.

• Base material for driveways and parking lots
• Drainage systems (French drains, pipe bedding, septic fields)
• Concrete aggregate (when meeting ASTM C33)
• Backfill for retaining walls
• Erosion control and road base
• Landscaping mulch/ground cover

For best results, prepare the installation area by grading and compacting the subgrade. In drainage applications, use geotextile fabric beneath the gravel to prevent soil migration. This helps maintain the integrity of the installation over time.

Limitations and Incorrect Applications

#57 Limestone Gravel Gray should not be used where a smooth, compacted surface is required, such as finished walkways or playground surfaces, due to its angular shape and lack of fines. It is not suitable for decorative applications that require smooth or rounded stone. Avoid using #57 limestone in high-alkali environments where limestone may chemically react, though this is rare. It is not recommended as a surface layer for high-traffic pedestrian areas, as the gravel may shift underfoot. It is also not appropriate for applications needing very fine material or dust, such as leveling sand or paver base.

Comparison with Other Aggregates

Compared to pea gravel, #57 limestone is larger and more angular, providing better interlock and drainage but less comfort underfoot. Crushed granite serves similar functions but is harder and often more expensive. Limestone screenings are finer and used for compaction, not drainage. River rock is rounded and decorative, while recycled concrete aggregate is similar in use but may differ in color and composition.

Pricing and Delivery Information

Pricing for #57 Limestone Gravel Gray varies by location due to sourcing and delivery logistics. Delivery is available across the United States, and prices include delivery to your specified address. Enter your ZIP code on our website to view accurate, location-based pricing and minimum order quantities. Below are sample prices from select cities, showing per-ton costs and delivery charges. Prices may vary due to local availability and delivery distance.

To view prices for your specific location, enter your ZIP code on Gravelshop.com. All prices include delivery, and the minimum order amount may vary by area.

Ordering and Delivery Process with Gravelshop

Ordering #57 Limestone Gravel Gray from Gravelshop is simple and can be completed online in less than a minute. Select your product, enter your ZIP code, and choose your delivery date and time slot. Delivery costs are included in the displayed price, with no hidden fees. Once your order is placed, you will receive a confirmation email with all relevant details.

Gravelshop delivers in 31 U.S. states using a network of verified local suppliers and haulers. Delivery is performed by independent trucking companies, and drivers will unload the material at the most suitable accessible spot, based on their discretion. If you are not present at delivery, you accept responsibility for the unattended material. We do not spread or install the material; we supply and deliver only.

Payment can be made online using Visa, Mastercard, American Express, Discover, Apple Pay, Google Pay, and other major payment methods. For detailed delivery rates or to calculate the quantity needed for your project, use the material calculator on our website.

Summary Table: Technical Specifications

Important Usage Notes

#57 Limestone Gravel Gray is designed for structural, drainage, and base applications. It is not recommended for decorative or high-traffic pedestrian surfaces, nor for use where a highly compacted, smooth finish is needed. The angular nature of the stone can make it unsuitable for playgrounds or areas where comfort underfoot is a priority. In rare cases, limestone may react in high-alkali environments.

For further assistance, pricing, and order support, visit Gravelshop.com or contact our customer care team. All orders are subject to our delivery and site access terms and conditions.