100% Safe and Secure On-Line Shopping!! Fast & Easy Shipping: (800) 290-7752

BAROID, "POLY-BORE", BOREHOLE STABILIZING AGENT, 14 LB CAN

Description

POLY-BORE is a free flowing, water-soluble, easy mixing, 100% dry granular polymer. POLY-BORE is a very high molecular weight partially hydrolyzed polyacrylamide (PHPA) polymer. When mixed with fresh water, a small quantity of POLY-BORE provides a clear, solid-free, viscous borehole stabilizing fluid for use in drilled shaft, auger drilling, horizontal directional boring, trenching excavation and reverse circulation (RC) rotary drilling.

Applications/Functions

• Provide a clay-free boring fluid
• Inhibit sticky clay from swelling
• Stabilize the borehole while drilling or excavating
• Provide high cohesiveness to bind excavated sandy soil and gravel
• Facilitate the removal of drilled spoils from augers and increase excavation rate
• Maximize load transfer for drilled shaft application
• ANSI/NSF Standard 60 certified 

Advantages

• Disperses easily with minimal shear
• Develops a viscous slurry with small amount
• Does not require solids control unit to clean the slurry
• Promotes stable and gage borehole
• Alleviates bit balling and mud rings
• Requires less mixing equipment, reducing capital investment
• Results in maximum skin friction and ultimate end bearing capacity for a drilled shaft
• Breaks down chemically with bleach (sodium hypochlorite)
• Non-fermenting 

Typical Properties

• Appearance - White granular
• Bulk density, lb/ft - 52
• pH (0.25% solution) - 8.5 to 9.0 

Recommended Treatment

Construction Application
Add 3 to 10 pounds (1.4 to 4.5 kilograms) POLY-BORE dry polymer slowly through the hopper to mix with 1,000 gallons (3.8 m) of fresh water. (See general instructions listed below.)

Reverse Circulation Drilling
Add 0.5 to 1 pound (0.2 to 0.5 kilograms) POLY-BORE dry polymer slowly through the hopper to mix with 100 gallons (0.38 m) of fresh water. (See general instructions listed below.)

General Instructions
Continue mixing for another 15 to 20 minutes to allow POLY-BORE to hydrate.

• If POLY-BORE is being added directly to a tank with paddle mixers, make sure the freshwater level is well above the paddles. Add the POLY-BORE slowly to the vortex of the spinning paddles.
• Measure the funnel viscosity of the polymer slurry and adjust according to required specifications.

Notes:

• Make-up water used to mix POLY-BORE should meet the following quality:
• total chloride less than 1500 ppm (mg/L)
• total hardness less than 150 ppm as calcium
• total chlorine less than 100 ppm
• water pH between 8.5-9.5
• Reduce total hardness of make-up water by adding 1 to 2 pounds (0.45 to 0.9 kilograms) soda ash (sodium carbonate) per 1,000 gallons (3.8 m) of make-up water. (Do not add in excess as overtreatment can lead to detrimental effects and reduced performance of the drilling fluid).
• POLY-BORE can be chemically broken down with regular household liquid bleach (5% sodium hypochlorite). Use one gallon of liquid bleach per 100 gallons (10 liters/m) of fluid formulated with POLY-BORE. Do not use perfumed liquid bleach or solid calcium hypochlorite. 

Packaging

POLY-BORE is packaged in 14 lb (6.35-kg) resealable plastic containers.