Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Product Type
- Technologies
- Product Families
Features & Benefits
- Ready-to-Use Product Features
- Advantages
- One component - no catalyst required.
- Encapsulates and strengthens loose soil.
- Very low viscosity for good soil penetration.
- Watertight.
- Phthalate free (more environmentally friendly).
- Certified by ALS Global to NSF/ANSI/CAN 61 (approved for contact with drinking water)
Applications & Uses
- Markets
- Application Method
- Cure Method
- Uses
- Permeation grouting.
- Stabilizing loose sand and soil.
- Sinkhole remediation.
- Application
Preliminary Analysis
For soil stabilization, and all other forms of geotechnical grouting, it is advised to review soil reports from the job site. Take note of all structural elements and considerations and consult with geotechnical or structural engineers as needed. Locate all utilities prior to drilling or driving pipes into the ground. Dynamic cone penetrometer testing before and after application is recommended.
Preparation of The Substrate
Soil probe spacing is most commonly 3-5’ (0.91–1.52m) on center and as needed across the surface of the substrate. Depths will vary from job to job but must be established before work is to begin. Injection Technician should always confirm clearances and paths to injection sites for large equipment and/or Alchemy-Spetec mobile injection rigs.
Preparation of The Equipment
Pre-flush the pump with AS Pump Flush at the start of each day to ensure that there is no moisture in the pump and that the pump is primed.
- Surface Preparation
Drive injection pipes to the lowest point to be injected
Pipe diameter and wall thickness requirement is only a function of strength.If you are driving deeper or through tighter soil or rocky soil, the pipes need to be larger diameter so that they can withstand the driving forces without bending. Typically, use either 1/2”(13mm) steel tubing or 3/8”(10mm) NPT black pipe or corrugated pipe. The hydraulic tubing is the least expensive, but the weakest. Hydraulic tubing does not have threads, so use a compression fitting to connect to it. 3/8” NPT pipe has 3/8” NPT threads on the end (although nothing about this pipe is actually 3/8 of an inch). Connect to this pipe with a threaded fitting. Place a small carriage bolt in the end of the pipe before driving to keep soil out of it. Secure the carriage bolt with a few wraps of painters tape or electrical tape. The pump pressure should blow the bolt out of the end of the pipe. After driving, be sure to pull the pipe back up 1” (2-3cm) to give the plug room to push out of the pipe. You can also drill small diameter holes on the last 6-8” (15-20cm) of the pipe to create a strainer pipe. Drive 1/2” (13mm) tubing with a hammer drill that has a ground rod driver attachment on it. You can also use a pneumatic hammer to drive 3/8” or larger pipe (Rhino Driver brand or equal).
Pipe Spacing
For excavation wall injection, pipes are driven every 18” (45cm) apart in two or three rows. Each row is staggered so the pipes in the second row are right in the middle of the pipes on the first row (but 12” in front of the first row). For deeper or more crucial projects use a third row of pipes. For soil grouting where connection between the grout balls is not required, 3-5 foot spacing is often acceptable.
Injection
For permeation grouting, lower pressure, longer duration injection is preferred. High pressure, high volume injection can cause the soil to fracture and the resin to shoot off into “lenses” of grout that travel away from the area you are trying to solidify. Permeation is done slowly. Rule of thumb is one gallon per vertical foot (3.78 liters per 30.5 cm). Inject a gallon of resin, jack the pipe up one foot, then inject another gallon of resin. Repeat until you are 3’ (1m) from the surface. At this point, resin will probably start pushing to the surface. It also pushes to the surface if you inject too fast.
Required Tools and Accessories
- Pump (airless sprayer or double diaphragm pump)
- 1/2” (13mm) Galvanized Steel Injection Tubing (10’/3m or 20’/6m lengths available) or 3/8” NPT pipe.
- 1/4” (6mm) x any length carriage bolts (for ½” tubing)
- 5/8” (16mm) Ground Rod Driver with SDS or SDS Plus Shank
- Painters tape or electrical tape - holds bolt in place
- Pipe cutting wheel or angle grinder with cutoff blade
- Pipe pulling apparatus - JackJaw for example
- Viton Gloves
- Safety Goggles
Cleaning and Maintenance
After the injection at the end of the day, flush the pump with AS Pump Flush. If the pump will not be used for several days, flush the AS Pump Flush out of the pump with lightweight motor oil or hydraulic fluid and leave it there until the next usage. Never rinse the pump with water.
- Complimentary Products
AS Pump Flush, AP Soak 130 (softens cured resin on metal parts), AP Cat 600 (optional if faster set time is required), 1/2” TubingInjection Assembly for use with ½” steel tubing (consists of Nut, Ferrule, and Button Head Adapter), Pagani DPM 30-20 (dynamic cone penetrometer).
Properties
- Cured Properties
| Value | Units | Test Method / Conditions | |
| Tensile Strength (25°C, Liquid) | 175.0 | p.s.i. | ASTM D-3574 |
| Shrinkage (25°C, Liquid) | Negligible | — | ASTM D-1042/D-756 |
| Compressive Strength (Fine Sand, 25°C, Liquid)) | 2085.0 | p.s.i. | ASTM D-575/D695 |
| Pre-activated Mix Viscosity (25°C, Liquid) | 37 - 39 | Centipose | — |
Regulatory & Compliance
- Certifications & Compliance
Technical Details & Test Data
- Advice / Focal Points
Avoid injecting by temperatures below -4°F (-20°C). In extreme cold conditions it is recommended to warm both components to 60-80°F(16 – 27°C).
- Reaction Times
Reaction Times 73°F (23°C) with Optional Catalyst:
Catalyst AP Cat 600 Set Time 0% 0 oz. to 5 gal. (0 ml to 18.93 liters) 3 hrs. 0.50% 3.2 oz. to 5 gal. (94.64 ml to 18.93 liters) 2 hrs. 30 min. 1.00% 6.4 oz. to 5 gal. (189.27 ml to 18.93 liters) 2 hrs. 1.50% 9.6 oz. to 5 gal. (283.90 ml to 18.93 liters) 1 hrs. 20 min. 2.00% 12.8 oz. to 5 gal. (378.54 ml to 18.93 liters) 55 min. 2.50% 16.0 oz. to 5 gal. (473.18 ml to 18.93 liters) 30 min. 3.00% 19.2 oz. to 5 gal. (567.81 ml to 18.93 liters) 25 min.
Safety & Health
- Safety Precautions
Avoid contact with eyes and skin, always use personal protective equipment in compliance with local regulations.
Packaging & Availability
- Packaging
AP SOIL 600 is supplied in 5 Gallon Pails, 50 Gallon Drums, 250 Gallon Totes (18.9 Liter Pails, 189.2 Liter Drums, 946.3 Liter Totes)
Storage & Handling
- Storage and Shelf Life
Store between 50° - 80°F (10° - 26°C)