Pavers' Polymeric Sand Alternative: Top Options

If you're in the process of installing or maintaining interlocking pavers, you might be considering various jointing compounds to fill the spaces between them. Polymeric sand is a popular choice, but it's not the only option out there. This article explores several alternatives to polymeric sand for pavers, each with its unique benefits and use cases.

Before diving into the alternatives, let's briefly discuss polymeric sand's key features. It's a blend of sand, polymers, and features like colorants and additives. Polymeric sand hardens upon getting wet, locking the pavers in place and preventing weed growth. However, it's not without its drawbacks, such as its susceptibility to extreme temperatures and difficulty in repairing damaged joints.

Natural Stone Dust

One of the most common alternatives to polymeric sand is natural stone dust (also known as Crusher Dust or decomposed granite). It's a byproduct of the quarrying process, primarily composed of crushed stone and screened to a fine consistency.

Stone dust is often used as a base material for paver installations, but it can also function as a jointing compound. It's highly resistant to extreme temperatures and won't degrade over time like some polymeric sands might. Moreover, stone dust permeable, allowing water to flow through it, which can aid in preventing ice dams and water erosion. However, it might not be as effective in preventing weed growth compared to polymeric sand.

benefits of Stone Dust

Stone dust is budget-friendly, as it's often a byproduct of the quarrying process, making it a cost-effective alternative to polymeric sand. It's also easy to incorporate into your existing landscaping, as it blends naturally with various stone materials.

The permeability of stone dust makes it an excellent choice for environmentally conscious homeowners. It allows water to flow through it, reducing runoff and promoting a healthier ecosystem. Additionally, stone dust is less likely to stain than some polymeric sands, making it a low-maintenance option.

Drawbacks of Stone Dust

While stone dust is durable and long-lasting, it might not be as effective in locking pavers in place as polymeric sand. This could lead to settler (sinking) issues if not properly compacted and maintained. It also might not adhere as strongly to the pavers as polymeric sand, potentially allowing weeds to grow through the joints over time.

Stone dust isn't always available in a wide range of colors like polymeric sand. This could limit your design options if you're aiming for a specific aesthetic. However, you can often achieve a similar look by matching the stone dust color to your pavers or using it in combination with other jointing materials.

Sawdust and Portland Cement

Another popular alternative to polymeric sand is a mix of sawdust and Portland cement. This combination combines the binding properties of cement with the textural benefits of sawdust, creating a jointing compound that's both durable and eco-friendly.

Sawdust and cement mix can be customized to suit various joint sizes and paver types. It's also typically less expensive than polymeric sand, making it a budget-conscious option. Plus, the sawdust content makes it more permeable than many traditional cement-based mixes, reducing runoff and promoting better water management.

benefits of Sawdust and Cement Mix

One of the most significant advantages of sawdust and cement mix is its eco-friendliness. The sawdust component allows the mix to absorb and retain moisture, promoting better curing and reducing the overall environmental impact.

The textural variation provided by the sawdust makes it an excellent choice for creating a rustic or natural look in your paver joints. It's also highly resistant to freezing and thawing, making it suitable for colder climates where polymeric sand can become damaged or deteriorate.

Drawbacks of Sawdust and Cement Mix

While sawdust and cement mix is quite resilient, it might not be as effective in preventing weed growth as polymeric sand. It also requires proper mixing and application, as incorrect proportions or insufficient curing can lead to cracking or crumbling over time.

The sawdust component might not appeal to everyone, as it can create a somewhat earthy or rustic look that might not fit with all design aesthetics. Additionally, sawdust and cement mix can be messier to work with compared to other jointing compounds like polymeric sand.

Synthetic Sand

Synthetic sand is a polymer-modified sand that mimics the appearance and texture of natural sand. It's designed to be more weather-resistant than traditional sand, making it a suitable alternative to polymeric sand for paver joints.

Synthetic sand is typically used in combination with other materials, such as cement or polymer-based binders, to create a sturdy jointing compound. It's highly resistant to extreme temperatures, UV damage, and even chemical exposure, making it a durable and low-maintenance option.

benefits of Synthetic Sand

One of the primary advantages of synthetic sand is its longevity. It's designed to last longer than traditional sand, reducing the need for frequent repairs or replacement. It also typically comes in a wide range of colors, making it easy to match your paver selection.

Synthetic sand is highly resistant to weed growth, making it an effective alternative to polymeric sand in this regard. It's also easy to clean and maintain, as the synthetic fibers don't absorb moisture like traditional sand, reducing the risk of staining or discoloration.

Drawbacks of Synthetic Sand

Although synthetic sand is highly weather-resistant, it might not be as effective in preventing settler (sinking) issues if not properly compacted and maintained. It's also typically more expensive than other jointing materials, like stone dust or sawdust and cement mix.

Synthetic sand might not be as environmentally friendly as some other alternatives, as the manufacturing process can have a more significant impact on the environment. It also might not blend as naturally with certain landscaping materials, potentially limiting your design options.

Frequency of Jointing Material Replacement

Regardless of which jointing material you choose, it's essential to remember that periodic maintenance and replacement are necessary to maintain the longevity and beauty of your paver installation.

The frequency of replacement often depends on factors like your location's climate, the type of pavers used, and the degree of traffic on the surface. Most jointing materials should be replaced every 3-5 years in high-traffic areas or every 5-10 years in low-traffic areas.

Ultimately, the choice between polymeric sand and its alternatives depends on your specific needs, budget, and desired aesthetic. Each material has its unique benefits and drawbacks, so it's essential to consider your priorities and local environmental factors before making a decision. By investing in the right jointing compound, you can ensure that your paver installation remains durable, functional, and visually appealing for years to come.