Apartment Complex Asphalt Reclamation San Marcos | T-PRO®
Project Overview
Lithic Industries performed a 132,000 square foot surface reclamation project at The Retreat, a 285-unit multi-family apartment complex in San Marcos, Texas, near the Texas State University campus. The access roads and parking areas were significantly compromised with visible pavement distress caused by ground swell from an existing water problem. Using T-PRO® polymer soil stabilization, the project delivered a durable, low-maintenance surface while the complex remained fully occupied.
Project Objectives
The primary goals were to create a viable, long-lasting surface with minimal interruptions to owners, staff, and tenants; meet strict budget constraints; and complete the work within a tight 21-day schedule.
The Challenge
The sub-grade consisted of clay, limestone, and unknown materials. A 20–30 foot elevation change across the site created complex drainage issues. The complex was at full occupancy during the entire project, requiring careful phasing and minimal disruption. Traditional full-depth reconstruction would have required extensive excavation, geo-grid installation, and approximately 1,000 truckloads of material transport.
The Polymer Soil Stabilization Solution
Lab testing determined that infusing the existing sub-base to a depth of 6 inches with T-PRO® was optimal — avoiding 18 inches of excavation and geo-grid. A Wirtgen 200 series machine was used to apply the precise dose of T-PRO® based on on-site material testing. The base was allowed to cure for 12–24 hours before the final topcoat. The job was completed in three phases (approximately one week per phase). The stabilized base was then topped with 1.5 inches of asphalt.
This in-situ approach eliminated the need for approximately 1,000 truckloads of material haul-off and import.
Proven Results
The T-PRO® treatment delivered exceptional project outcomes:
- $450,000 in total project cost savings
- Eliminated approximately 1,000 truckloads of material transport
- Significant reduction in environmental impact and liability
- Completed in just 21 working days
- Expected flexible sub-base strength of 800–1,200 PSI (dry) and 350–450 PSI (wet)
- Delivered a smooth, durable, and long-lasting surface for residents and staff
Application Details
- Area Treated: 132,000 SF
- Equipment Used: Wirtgen 200 series milling/reclaimer machine and supporting equipment
- Application Method: 6-inch deep in-situ polymer infusion + 1.5-inch asphalt overlay
- Project Duration: 21 days (3 phases)
- Polymer Dose: Precisely calculated based on on-site material testing
Maintenance Requirements
The stabilized surface is designed for low long-term maintenance. Periodic inspection and standard asphalt maintenance practices apply to the overlay.
Why Multi-Family and Commercial Property Owners Choose T-PRO® for In-Place Reclamation
This project demonstrates how modern polymer soil stabilization provides a faster, lower-cost, and more sustainable alternative to full-depth reconstruction. It is an ideal solution for apartment complexes, commercial properties, and multi-family developments seeking to rehabilitate parking lots and access roads with minimal disruption and major cost savings.
T-PRO® is a proven, carbon-neutral polymer soil stabilization technology backed by Texas A&M Transportation Institute (TTI) validation. It consistently delivers strong, long-term results using in-situ materials while dramatically reducing trucking, cost, and environmental impact.
Ready to Reclaim Parking Lots and Access Roads In Place?
Contact Lithic Industries today for a free technical consultation or site assessment. Let us show how T-PRO® can deliver lasting results and major cost savings for your next multi-family or commercial infrastructure project.
Significantly distressed asphalt surface due to ground swell and water issues.
Expect a flexible 800-1200 PSI dry climate & 350-450 wet PSI
Final Result: A smooth, durable, and long-lasting surface.