After Proof Roll Fails: What is the Remedy and What Does “It” Cost?
A comparison of three stabilization methods based on 5,000 square yards.
Option 1. Stabilize in-place soil at a 12 inch depth with a 10% Class “C” fly ash.
|Dust free application of fly ash at the geotechnical designed pounds per square yard with cross auger distributor. Blend fly ash uniformly with in-place soil utilizing a pulvamixer equipped with a spray bar for application of required water to obtain proper moisture content of the soil-fly ash mixture. Complete initial compaction with padded drum roller.||$5.75 SY||$28,750*|
|Finish grade to required lines and profile, Seal surface with smooth drum roller.||$1.00 SY||$5,000|
Option 2. Excavate to a 6 inch depth, place DOT approved geogrid with 6 inches of roadstone.
|Over excavate 833 CY, haul off site||$5.00 CY||$4,165|
|Purchase Tensar BX-4100, allow for 10% material overlap (5500 SY)||$1.65 SY||$9,075|
|Labor for geogrid placement (5500 SY)||$0.55 SY||$3,025|
|Purchase, haul and place 1417 ton of roadstone on site||$16.00 T||$22,672|
|Spread and compact roadstone||$2.00 T||$2,834|
Option 3. Excavate to a 12 inch depth, place a 12 inch depth of compacted roadstone.
|Over excavate 1666 CY, haul off site||$5.00 CY||$8,330|
|Purchase, haul and place 2835 ton of roadstone on site||$16.00 T||$45,360|
|Spread and compact roadstone||$2.00 T||$5,670|
Advantages of Soil Stabilization
- More economical
- Significantly improves CBR values
- Reduces utilization of natural resources(aggregates and fuel)
- Eligible for LEED credits
- Shortens number of workdays
- Increases freeze/thaw durability of soil
- Utilization of recyclable materials
- Provides for reduction of pavement thickness
- Extends pavement life
Let GEOMAX perform value engineering for your project.
BETTER SCIENCE. SOLID RESULTS.
*For comparison purposes, price may vary according to dry density weight of soil