Project Description: Terratech constructed a private access road for a new residential development using gravel amended in-situ soils and high performance T-PRO® 500 copolymer.
Project Objectives: The property developer wanted to retain the natural aesthetic of the surrounding landscape and use in-situ stabilization to create a durable, smooth surface road to provide functional daily access for the residents. The road was therefore engineered with both lightweight passenger vehicle traffic and occasional heavy service truck access in mind. Prior to polymer application, soil samples were taken and laboratory tested to determine index properties. The existing silty sand soils were amended with 10% gravel to create a wear resistant, dust-free surface and high load bearing capacity. The project took several days to complete and a topical seal coat was applied after the infused application to create a tough, long-wear surface finish.
Equipment Used: Grader, Tractor with Harrowing Discs, Water Truck with Spray Bar, Smooth Drum Roller.
Application Specifications: Infused application with T-PRO® 500 polymer dosing at 0.65% by weight of material treated. Topical seal coat at a coverage rate of 100 ft²/gallon.
Maintenance Requirements: Removal of loose material from surface and topical re-application of polymer seal coat at a coverage rate of 150 ft²/gallon.
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Project Description: Terratech polymer technology was used for road shoulder stabilization along Highway 16 near Saskatoon, Canada. A 1.5 m wide section of road shoulder was stabilized intermittently between asphalted sections. Vehicular wear and shoving of the aggregate from the surface caused deterioration of the shoulder and a potentially hazardous condition for trucks and cars.
Project Objectives: In order to optimize strength characteristics of the road shoulder and maximize polymer dosing efficiency, sections of road were treated with concentrations of T-PRO® 500 at 0.75, 1.0 and 1.25 percent polymer, by total weight of soil material treated. The levels of dosing were matched with the degree of wear each section of shoulder exhibited from vehicles pulling off the road, softening of edge from precipitation, and shoving of aggregate surface by trucks and cars drifting off-road along curved sections. The polymer stabilization was used to improve the surface wear resistance through improved soil shear strength. Once the road shoulder sections were treated with an infused application of T-PRO 500 and compacted into place, a seal coat was applied over the entire surface area. Terratech demonstrated that polymer technology is a cost effective, long term, low-maintenance, soil stabilization method of maintaining shoulder integrity and motorist safety.
Equipment Used: Milling Machine, Grader, Water Truck with Pressurized Spray Bar, Vibrating Pneumatic Roller.
Application Specifications: Infused application with polymer concentrations at 0.75%, 1.0% and 1.25%. All sections sealed with a topical seal coat at a coverage rate of 115 ft²/gal.
Maintenance Requirements: Removal of loose material from shoulder surface and topical re-application of polymer seal coat at a coverage rate of 110 ft²/gal.
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