How Wet Weather Affects Recycled Aggregate
If you’re using recycled aggregate for a construction or landscaping project, it’s important to consider how it behaves in different weather conditions—especially during Alabama’s rainy seasons. At RCM Alabama, we often get questions about how wet weather affects recycled materials, and the short answer is: it depends on the type of aggregate and how it’s being used.
Let’s break down how moisture impacts recycled aggregate and what you should keep in mind when planning your next project.
🌧️ What Is Recycled Aggregate?
Recycled aggregate is made by crushing and processing used concrete, asphalt, or other construction materials into usable stone, gravel, and more. It’s a sustainable and cost-effective alternative to virgin aggregates, and it’s commonly used for:
Fill material
Construction backfill
In Birmingham and the surrounding areas, recycled aggregate is a popular choice for both residential and commercial use thanks to its availability and environmental benefits.
💧 How Does Wet Weather Affect Recycled Aggregate?
1. Increased Moisture Content
Recycled aggregate is porous and can absorb moisture when exposed to rain. Excess moisture increases the weight of the material, which can impact how much you need and how it’s handled or transported. If you're buying by weight, it’s something to watch for after a heavy rain.
2. Potential for Compaction Issues
Wet recycled aggregate can become muddy or sticky, especially if it contains fine particles like crushed concrete dust. This can make compaction more difficult, which is a key part of building a strong, stable base for driveways or pads.
3. Drainage Considerations
When installed properly, recycled aggregate allows for decent drainage. But if the material is too saturated—or placed on wet, unstable soil—it can trap water and reduce its load-bearing capacity. That’s why proper grading and base preparation are so important in Alabama’s rainy climate.
4. Stockpile Management
If you’re storing recycled aggregate on-site, wet weather can cause clumping, erosion, or runoff if your piles aren’t covered or contained. Keeping materials under a tarp or in a well-drained area can help reduce mess and loss.
✅ Tips for Using Recycled Aggregate in Wet Conditions
Plan ahead: Try to schedule deliveries and installs during dry spells when possible.
Cover your material: If you’re storing recycled aggregate for future use, keep it protected from rain to avoid excess moisture.
Check your base: Always inspect and prepare the subgrade to ensure proper drainage and compaction before spreading aggregate.
Use the right mix: For wetter conditions, opt for recycled aggregate with fewer fines (like a clean #57 recycled stone) to improve drainage.
Looking for Recycled Aggregate?
At RCM Alabama, we supply a range of high-quality recycled aggregates, including crushed concrete and asphalt, perfect for driveways, site prep, and more. Our team can help you choose the right material for your needs—rain or shine.
📞 Contact us today for pricing, availability, or expert advice on how to work with recycled aggregate in Alabama's wet weather conditions.
