Technical Data HARDSCAPE CONSTRUCTION
Aspect
HPO’s Trass System Concrete Slab Base + Overlay
Crushed Rock Base
~5,000 psi ; bonded, permeable slab-like Up to 40-ton rating ; handles heavy traffic Highly permeable ; rapid drainage through layer
3,000–4,000 psi; rigid but cracks under stress Strong initially; brittle failure if cracked Impermeable; water trapped beneath Vulnerable; cracks common Mirrors soil movement; cracks or slab movement
Relies on compaction; no true beam strength Adequate for patios; thick base for vehicles Semi-permeable; dense base holds water Moderate; dense base freezes and heaves Requires extra prep and geogrid Moderate; re-sand, re- level
Structural Strength
Load Capacity
Handling of Water
Freeze-Thaw Resilience Excellent ; tested through 50 cycles with zero
Bridges minor soil shifts; keeps clay dry
Clay Soil Adaptability
Minimal ; stays level, joints sealed
Difficult; cutting and patching
Maintenance
Built-in lime neutralization
Efflorescence Control
Low
Low
30–50+ years , warranty- backed
Expected Lifespan
10–20+ years
10–15 years
POOL CONSTRUCTION
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