A06_Specification_Stabilizer_Solutions_Pedestrian.pdf

Advancing the Evolution of Soil 29 Years Over 100,000 Projects 36 Countries

©2008-11 Stabilizer Solutions Inc. All Rights Reserved

Stabilizer for aggregate trails, pathways, and patios

Stabilizer Solutions Inc.

33 South 28th Street Phoenix, AZ 85034 USA P 602.225.5900 F 602.225.5902 Toll Free 800.336.2468 www.StabilizerSolutions.com info@StabilizerSolutions.com

Materials

Stabilizer- The Original Natural Binder Stabilizer is an organic powder that stabilizes soil by binding soil particles. It is a natural, non-toxic, non-staining, odorless, environmentally safe powder derived from crushed seed hulls.

Stabilizer can be used with a variety of crushed aggregates: Decomposed Granite, Crushed Stone, Hard Rock, or Limestone, etc. to create natural looking fire lanes, driveways, and parking areas. Stabilizer strengthens aggregates to withstand traffic and weather extremes. Stabilizer is patented and manufactured solely by Stabilizer Solutions, Inc. One ton of Stabilized aggregate typically covers 65 sqft. at a 3” depth. Coverage will vary depending on aggregate.

Stabilizer is a 100% natural powder available in 40lb bags or 2000lb sacks.

Crushed Aggregate

Select a crushed aggregate for use with Stabilizer that consists of inert materials that are hard and durable, with stone free from coatings. Stabilizer will not bind every aggregate, so please keep to the following distribution. Please send any borderline aggregates in for testing.

U.S. Sieve No. Percent Passing by Weight # 3/8" 100 # 4 90 – 100 # 8 75 – 80 # 16 55 – 65 # 30 40 – 50 # 50 25 – 35 # 100 15 – 20 # 200 to 10 – 15

Preparation

Stabilized aggregate requires a 3” compacted layer of your state’s DOT recommended crushed granular road base. Pre-soak the base material with water and compact to 95% prior to installing Stabilized aggregate. Although porous, it is recommended to have proper drainage available to ensure no standing water on surface or adjacent to Stabilized aggregate, including downspouts when placed under roof overhang.

Compaction of wet granular base

Blending

Stabilizer MUST be thoroughly pre-mixed with crushed aggregate at the rate of 12-lbs for planting areas to 15lbs for heavier use, of Stabilizer per 1-ton of aggregate. Check with Stabilizer Solutions, Inc. for correct Stabilizer rate, as the amount may vary for your project and climate conditions. Drop spreading of Stabilizer over pre-placed aggregate or mixing by rototilling is not is ONLY acceptable if approved by Stabilizer Solutions, Inc. Stabilizer should be mechanically blended (Bucket blending is not an approved blending method). Stabilizer can be blended by cement mixer, pug mill, Dakota blender, generally any paddle type blenders (no screw type blenders). If you wish to use another type of blender, please verify with the company. Always blend the material DRY and leave material in mixer for several passes of the mixing paddles.

Stabilizer will disappear within material quickly, but may not be blended completely.

Stabilizer and aggregate blended in two different sizes of cement mixers

After Stabilizer is blended into aggregate, confirm that Stabilizer has been thoroughly blended.

The best way to do this is the ‘ball test’.

Take a handful of blended aggregate and add a few ounces of water to it.

Work around material in both hands to ensure no dry aggregate remains.

Form aggregate into ball by hand and apply pressure.

The result should be an aggregate ball with a doughy consistency that holds together. You should be able to toss the ball in your hand without it breaking apart.

The ball test

Installing Stabilized Aggregate

Place the Stabilizer and aggregate mixture on the prepared base, and rake smooth to desired grade and cross section. Place material to sufficient depth to allow 3” for light traffic or 4” depth for high traffic, after compaction. Do not install Stabilized aggregate during rainy conditions or below 40 degrees Fahrenheit and falling.

Machine Application

Hand Application

Watering

Water activates Stabilizer. It is essential that Stabilizer be watered thoroughly through the entire depth. To achieve saturation of Stabilized aggregate profile, 25 to 45-gallons of water per 1-ton must be applied. During water application, test moisture penetration using a probing device reaching full depth.

Better to over water than under water

Compaction

Wait a minimum of 6 hours to a maximum of 48 hours, or until the aggregate is able to accept compaction from a 1 to 5 ton roller without separation, plowing or any other physical damage of the aggregate. The aggregate will begin to dry out and setup. Compaction can begin when you can walk on the material without sinking in significantly and material does not feel too muddy. Do not allow material to dry out completely.

If surface aggregate dries significantly quicker than subsurface material, lightly mist surface before compaction. Compact the material with a compactor as specified below making 3 to 4 passes (do not use a vibratory unit). Upon thorough moisture penetration, compact aggregate to 85% relative compaction by equipment such as; a 1,000lb power roller for lighter use areas or 1 to 5-ton double drum roller for heavier. DO NOT use a vibratory plate compactor or vibration feature on roller, as vibration separates large aggregate particles.

Installation of Stabilized aggregate more than 3” must be installed in lifts. If 4” thick compact in

(2) 2” lifts. If 5” thick, compact in (2) 2.5” lifts. If Stabilized aggregate is pre-moistened before installation entire 4” or 5” lift may be installed.

Do not allow material to dry completely before rolling

Inspection Allow aggregate to dry completely. Drying time may vary depending on amount of water used and weather conditions. Once completely dried, the surface should be smooth, uniform and solid.

No evidence of chipping or cracking. Cured and compacted surface should be firm throughout profile with no spongy areas. Loose material will not be present on the surface after installation, but may appear after use. Surface should remain stable underneath the loose granite on top.

Stabilizer will not turn the aggregate into concrete- you can still feel the crunch of the gravel under foot. It is a “natural” looking pathway, yet stable throughout and can withstand vehicle traffic and weather extremes. Any significant irregularities in surface should be repaired to the uniformity of entire installation.

Maintenance

Remove debris, such as paper, grass clippings, leaves or other organic material by mechanically blowing or hand raking the surface as needed. Any plowing program required during winter months should involve the use of a rubber baffle on the plow blade or wheels on the plow that lifts the blade 1/4" off the aggregate surface. During the first year, a minor amount of loose aggregate will appear on the surface (1/16 to 1/4"). If this material exceeds a 1/4 of an inch, redistribute the material over the entire surface. Water material thoroughly to the depth of 1”, and compact with power roller of no less than 1000-lbs.

References Stabilizer is the original natural binder in use internationally for over 26 years. Some of the worlds greatest projects use Stabilizer, here are a few.

The Royal Botanical Garden- Melbourne, Australia

The Constantine Brancusi Sculpture Garden- Tar Jiu, Romania

The Lincoln Park Zoo, Chicago, IL USA

©2002-11 Stabilizer Solutions, Inc. All Rights Reserved. Page 1 of 1

SECTION 32 15 43

STABILIZER® FOR STABILIZED AGGREGATE PATHWAY: PEDESTRIAN ACCESS

PART 1 - GENERAL

1.1 SUMMARY

A. This Section includes material and labor requirements for construction with decomposed granite or crushed 3/8” or 1/4" minus aggregate pathway with Stabilizer® binder additive for the following items:

1. Stabilized Aggregate pathway and patios

B. Related Sections:

1. Section 31 00 00 – Earthwork

2. Section 32 11 00 – Stabilizer® for Stabilized Aggregate Pavement: Firelanes, Driveways and Parking Lots.

1.2 PERFORMANCE REQUIREMENTS

A. Perform gradation of decomposed granite material or 3/8” or 1/4" minus crushed aggregate in accordance with ASTM C 136 – Method for Sieve Analysis for Fine and Course Aggregates.

1.3 SUBMITTALS

A. Products Data: For each product specified. Submit a 5 lb. sample and sieve analysis for grading of decomposed granite or crushed 3/8” or 1/4" minus aggregate to be sent to Stabilizer Solutions, Inc. prior to any construction

– (allow 2 week turn around). Must be approved by Landscape Architect and Owner.

B. Shop Drawings: Show details of installation, including plans and sections.

C. LEED Submittals:

1. Credit MR 4 – Recycled Content: Attach product data and certification letter indicating percentages by weight of post-consumer and pre-consumer recycled content for products having recycled content. Include statement indicating costs for each product having recycled content.

2. Credit MR 5 – Regional Materials: Attach product data for regional materials indicating location and distance from Project of material manufacturer and point of extraction, harvest, or recovery for each raw material.

Include statement indicating cost for each regional material and the fraction by weight that is considered regional.

3. Credit MR 6 – Rapidly Renewable Materials: Attach product data and certification letter indicating percentages by weight of rapidly renewable materials for each product. Include statement indicating costs for each product having rapidly renewable material.

D. Maintenance Instructions: Submit copy(ies) of manufacturer’s written maintenance instructions in accordance with 01 73 23 – Operation and Maintenance Data.

Stabilizer Solutions, Inc.

33 South 28th Street

Phoenix, AZ 85034 USA toll free 800.336.2468 p 602.225.5900 f 602.225.5902 www.StabilizerSolutions.com info@stabilizersolutions.com

©2002-11 Stabilizer Solutions, Inc. All Rights Reserved. Page 2 of 2

1.4 PROJECT/SITE CONDITIONS

A. Field Measurements: Each bidder is required to visit the site of the Work to verify the existing conditions. No adjustments will be made to the Contract Sum for variations in the existing conditions.

1. Where surfacing is indicated to fit with other construction, verify dimensions of other construction by field measurements before proceeding with the work.

B. Environmental Limitations: Do not install Stabilized Aggregate pathway during rainy conditions or below 40 degrees Fahrenheit and falling.

1.5 QUALITY ASSURANCE

A. Installer Qualifications: Installer to provide evidence to indicate successful experience in providing Stabilized Aggregate surface or ability to follow installation instructions.

B. Mock-ups: Install 4 ft. wide x 10 ft. long mock-up of decomposed granite or 3/8” or 1/4“ minus crushed aggregate surfacing with Stabilizer® additive at location specified by owner’s representative.

C. Compaction testing to be provided by contractor, one test per 2,000 square feet of base course.

D. Manufacturer’s technical representative shall visit the site at the start of an installation to ensure the installer understands the correct installation methods to use.

1.6 WARRANTY

A. General Warranty: The special warranty specified in this Article shall not deprive the Owner of other rights the Owner may have under other provisions of the Contract Documents and shall be in addition to, and run concurrent with, other warranties made by the Contractor under requirements of the Contract Documents.

B. Special Warranty: Submit a written warranty executed by the installer agreeing to repair or replace components of Stabilized Aggregate that fail in materials or workmanship within the specified warranty period. Stabilizer Solutions, Inc. does not warranty “Stabilizer®” purchased from a non-approved Stabilizer Solutions, Inc.

licensee. Failures include, but are not limited to, the following:

1. Premature wear and tear, provided the material is maintained in accordance with manufacturer’s written maintenance instructions.

2. Failure of system to meet performance requirements.

C. Warranty Period: Contractor shall provide warranty for performance of product. Contractor shall warranty installation of product for the time of one year from completion.

D. Contractor shall provide, for a period of sixty days, unconditional maintenance and repairs as required.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. Stabilizer® for Stabilized Aggregate surfaces provided by the following manufacturer:

1. Stabilizer Solutions, Inc. 33 South 28th St., Phoenix, AZ 85034; phone (602) 225-5900, (800) 336-2468; fax

(602) 225-5902; website stabilizersolutions.com; email info@stabilizersolutions.com

©2002-11 Stabilizer Solutions, Inc. All Rights Reserved. Page 3 of 3

2.2 MATERIALS

A. Decomposed Granite or 3/8” or 1/4" crushed aggregate screenings

1. Sand and crushed stone shall consist of inert materials that are hard and durable, with stone free from surface coatings and deleterious materials. Gradation requirements shall be as follows:

2. Crushed Stone Sieve Analysis Percentage of Weight Passing a Square Mesh Sieve AASHTO T11-82 and T2782

1/4" MINUS AGGREGATE GRADATION

U.S. Sieve No. Percent Passing by Weight # 3/8" 100 # 4 90 – 100 # 8 75 – 80 # 16 55 – 65 # 30 40 – 50 # 50 25 – 35 # 100 15 – 20 # 200 to 10 – 15

3. Acceptable local supplier list to be provided by Architect

B. Stabilizer® Binder

1. Patented, non-toxic, organic binder that is a colorless and odorless concentrated powder that binds decomposed granite or crushed 3/8” or 1/4" minus aggregate.

2. Product to have 64% pre-consumer recycled content.

3. Product shall have 25 years experience at same formulation.

2.3 EXCESS MATERIALS

A. Provide owner’s authorized rep. with the following excess materials for use in future Stabilized Aggregate repair: 40 to 50 lb. Bags of the Stabilized Aggregate blended with proper amount of Stabilizer®.

PART 3 - EXECUTION

3.1 PREPARATION

A. Base shall be 3” compacted layer of your state’s DOT recommended crushed granular road base. Make any corrections necessary to base furnished and installed to bring gravel to the elevations shown on the drawing.

B. Pre-soak base material with water and compact to 95% determined by Test Method ASTM D 1557 prior to installing Stabilized Aggregate. Compaction testing to be provided by project owner, one test per 2,000 square feet of base.

C. Although porous, it is recommended to have proper drainage available to ensure no standing water on surface or adjacent to Stabilized Aggregate, including downspouts when placed under roof overhang and surface drains.

©2002-11 Stabilizer Solutions, Inc. All Rights Reserved. Page 4 of 4

D. Before proceeding with installation, notify Owner’s Representative in writing of unsuitable site/base conditions.

3.2 BLENDING STABILIZER

A. Stabilizer® shall be thoroughly pre-mixed with aggregate at the rate of 15-lbs of Stabilizer® per 1-ton of aggregate. Verify with manufacturer correct Stabilizer® rate for your project and climate. Drop spreading of Stabilizer® over pre-placed aggregate or mixing by rototilling is not acceptable. Stabilizer shall be mechanically pre-mixed per manufacturer’s recommendations using an approved mechanical blending unit to adequately blend Stabilizer® with aggregate (Bucket blending is not an approved blending apparatus). Always blend Stabilizer® and aggregate DRY.

3.3 PLACEMENT

A. After pre-blending, place Stabilized Aggregate directly on prepared sub-grade. Level to desired grade and cross section. Depth of pathways shall be 3” for heavy foot traffic and light vehicles. DO NOT place on filter fabric. Contact Stabilizer Solutions, Inc. for installation on slopes greater than 8%.

3.4 WATERING

A. Water heavily for full-depth moisture penetration of profile. Water activates Stabilizer®. Apply 25 to 45-gallons of water per 1-ton to achieve saturation. Randomly test for depth using a probing device, which reaches full depth.

B. Contractor shall wait a minimum of 6 – 72 hours or until such time that the Stabilized Aggregate is able to accept compaction from a 1 to 5 ton roller without separation, plowing or any other physical compromise of the aggregate.

C. If surface aggregate dries significantly quicker than subsurface material, lightly mist surface before compaction.

3.5 COMPACTION

A. Compact Stabilized Aggregate to 85% relative compaction by equipment such as; a 2 to 5-ton double drum roller making 3 to 4 passes. Do not begin compaction for 6 hours after placement and up to 72 hours. DO NOT use a vibratory plate compactor or vibration feature on roller, as vibration separates large aggregate particles. If pumping or pancaking of surface occurs, surface is still too wet to roll.

B. Take care in compacting surface when adjacent to planting and irrigation systems, use 8” or 10” hand tamp.

Installation of Stabilized Aggregate more than 3” thick shall be installed in lifts. If 4” thick compacted (2) 2” lifts. If 5” thick compacted (2) 2.5” lifts. If Stabilized Aggregate is pre-moistened before installation entire 4” or 5” lift may be installed.

C. Lightly spray surface area following compaction. Do not disturb aggregate surface with spray action.

3.6 INSPECTION

A. Finished surface shall be smooth, uniform and solid with no evidence of chipping or cracking. Cured and compacted pathway shall be firm throughout profile with no spongy areas. Loose material shall not be present on surface after installation, but may appear after use and according to environmental conditions. Pathway shall remain stable underneath loose granite on top with a “natural” look. Any significant irregularities in path surface shall be repaired to the uniformity of entire installation.

©2002-11 Stabilizer Solutions, Inc. All Rights Reserved. Page 5 of 5

3.7 PROTECTION

A. Contractor shall furnish and install construction fence around new surface to prevent public access. Fencing shall be maintained in place for a minimum of 12 - 72 hours after completion of installation, or as directed by the Owner’ Representative. Drying period may take longer due to weather conditions.

B. Contractor shall notify Owner’s Representative that landscape irrigation shall be restricted near Stabilized Aggregate surface until drying period is complete. Standing water on surface and adjacent to path shall be restricted at all times.

3.8 MAINTENANCE

A. Remove debris, such as paper, grass clippings, or organic material by mechanically blowing or hand raking as needed. When plowing snow, use rubber baffle on plow blade or wheels on plow to lift blade 1/4" off the surface.

B. During first year, minor amounts of loose aggregate may appear on surface (1/16 to 1/4"). If material exceeds a ¼”, redistribute over entire surface. Water to 1” depth and compact with power roller of no less than 1000-lbs.

Repeat as needed. If cracking occurs, sweep fines into cracks, water thoroughly and hand tamp with an 8” – 10” hand tamp.

3.9 REPAIRS

A. Excavate damaged area to the depth of the Stabilized Aggregate and square off sidewalls.

B. If area is dry, moisten damaged portion lightly.

C. Pre-blend the dry required amount of Stabilizer® with the proper amount of aggregate in a concrete mixer.

D. Add water to the pre-blended Stabilized Aggregate. Thoroughly moisten mix with 25 to 45 gallons per 1-ton of pre-blended material or to approximately 10% moisture content.

E. Apply moistened pre-blended Stabilized Aggregate to excavated area to finish grade.

F. Compact with an 8” to 10” hand tamp or 250 to 300 pound roller. Keep traffic off areas for 12 to 48 hours after repair has been completed.

END OF SECTION