Soilworks products are the industry’s top standard due to our insistence on creating high performance soil stabilization and dust control products that stand up to rigorous testing – both in the lab and in the field. Our commitment to quality and performance has led to our involvement and testing in hundreds of real-world situations. The following library of reports, presentations, specifications, approvals and other similar documents provide you, our customer, the transparency and dependable assurance that is expected from Soilworks.
Fugitive Dust Prevention Guidance: Control and Prevention During Construction Actvities.
Fugitve dust loss to off‐site targets in urban and rural projects. Even though water was applied to photo on right, it was not effectve in controlling dust generation
HAUL ROADS, IN-GRADE ROADS, PROJECT EXITS
BMP 4. Reduction in travel speed is well documented to reduce mechanical fine aggregate dust dispersion from construction acvies. Additional BMPs used include water mists and active pickup broom sweeping (I35W Bridge access).
BMP 3. Stabilized exit with rumble grate and 3 inch rock aggregate (US25 Denver).
BMP 5. Water spray application, performed multiple times per day, as needed (TH12 Delano)
BMP 6. Chemical dust suppression using Calcium Chloride on TH61, Onion River. Performs suppression by hydroscopic water absorption of dew and water mists. Does not work during droughts or dry periods.
BMP 3/5/7. Tire wash off on stabilized slash wood mulch haul road and exit to TH51 (TH694/Snelling Ave.)
BMP 6. Chemical dust suppression using soybean derived biopolymers on prepared road bed. Suppression capable for seasonal control except at high shear wheel turn operations. Material applied is called Road Kill.
BMP 3/5. Moistened slash tree mulch for exit control and haul road dust suppression (TH169 Bovey).
BMP 3/5/7. Wheel wash off system used to prevent ï¬ne clay and silt from tracking onto paved road (Duluth).
BMP 6. Chemical dust suppression using latex biopolymers (TH610 Maple Grove). Several trade names include Monkey Snot and Gorilla-Snot.
Example Best Management Practices:
1. Following 1717 Site Management and Quality Control Plans
2. Staying on planned routes
3. Stabilizing project exits to minimize need for sweeping
4. Controlling travel speed, ideal 10 mph or less
5. Applying water
6. Applying dust suppression chemicals
7. Prevent tracking of fine soil materials by utilization of wheel wash off system.
PAVEMENT GRINDING FOR MARKING, STRIPING AND RUMBLE STRIPS
All bag filter systems typically are rendered ineffective after only a few minutes of operaon. This is easily noted by paint and pavement chips in the plume deposits.
Dry rumble groove cutting is not acceptable without use of water and/or vacuum process systems. Excess bituminous waste can be incorporated into granular shoulder. Existing excess bituminous waste and residue must not be flicked into the vegetated shoulder.
BMP 3/4. Good examples of pavement marking grinding using appropriately sized vacuum systems, scaled to the work. Vacuum hoppers require high maintenance and care to prevent loss during handling.
Dry grinding of existing pavement markers is not acceptable.
BMP 2. Prior to air blasting of recessed groove (prior to epoxy or film marker placement), vacuum remove as much free material as physically possible.
BMP 5. High pressure water jet removal of epoxy or mastic in groove, Complete vacuum removal of all waste and pavement.
Example Best Management Practices:
1. Use water sprays and mists during shallow pavement milling
2. Vacuum area prior to air blast cleaning
3. Grind with vacuum system capacity capable to allow seling of particulate matter in hopper
4. Grind/groove with properly sized and maintained HEPA filter on vacuum system
5. Grind/groove with hydraulic water blaster system with vacuum
6. Sweep with pickup style broom
7. Manage waste dust stockpile with plastic covers and ensure proper disposal
STOCKPILES, EXPOSED OPEN AREAS, GRADING OPERATIONS
Loamy sand at 80 microns and wind speeds of 12 mph are highly mobile. Any aggregate grain sizes between 10 and 100 microns are problematic. Stockpiles and open soil locations relative to trees, walls, buildings, valleys, bridges, etc. and prevailing winds can liberate massive amounts of particles.
BMP 1/4. Minimizing open soils by use of preservation of vegetation, vegetative buffers and progression of rapid covers will reduce potential of wind erosion. (TH212; TH494/61)
BMP 8. Example installation of a high performance tackifier (TH694/35E).
BMP 5. Formulas exist for determining placement and height of wind fencing that reduces tractive forces at the soil surface (Hawaii US1).
Wind erosion can occur during every season and time of day.
BMP 9. Example installation of a high performance hydraulically applied bonded fiber matrix. Length of service life determines mulch type and applied pounds
BMP 12. Minimizing open soils by use of plastic or geotextile soil covers. Note: follow installation detail sheet.
BMP 11. Soil roughening and imprinting by cat-walking and sheep’s foot dimpling reduces wind shear forces on soil surface.
Example Best Management Practices:
1. Limit areas of exposed soils
2. Limit height of stockpiles,
3. Limit placement in confined areas
4. Preserve vegetated buffers
5. Use wind shrouds
6. Till/form soil clods
7. Apply water
8. Apply dust suppression tackifiers and glues
9. Apply Hydraulic erosion control product matrix mulches
10. Apply dust suppression chemicals (salts, binders, or bonders)
11. Apply soil imprinting or surface roughening techniques
12. Install plastic sheet or geotextile fabric covers
13. Maintain installed BMPs
SAW CUTTING OF DECKS, PAVEMENT AND STRUCTURES
Problem. Cleaning pavements after various operations
Problem. Cutting storm sewer and other cast structures
BMP 4. Wash pavement that removes material to shoulder area entrapment prior to becoming dust problem (TH35). Slurry material directed to future shoulder entombment
BMP 3. Pre-wet pavement prior to sweeping or windrowing to shoulder (TH62 Crosstown).
BMP 2/7. Deck demolition using paral depth wet cung (through rebar, slab crab removal), followed by vacuum. (TH101).
BMP 2. Control joint cung with water spray (Blue Line)
BMP 2. Apply appropriate water from pressure tank to saw fing (University Ave Light Rail)
BMP 7. Bituminous pavement wet cung and vacuum for signalization project (TH61 Two Harbors)
BMP 7. High performance vacuum system for dust and materials.
BMP 5. Plastic wind shroud for cung and hammering control (35W Burnsville).
BMP 5. Pavement cung and slurry rooster‐tail wind control with movable plywood shroud (TH35 Duluth).
Example Best Management Practices:
1. Following 1717 Site Management and Quality Control Plans
2. Application of water to cung area, with controls of gutter sumps, trap sumps, shoulder sumps, SCL Type Compost. Squeegee, shovel, sweep, or vacuum removals of collected slurries.
3. Prewetting of surfaces prior to dust/slurry collected material removals
4. Washing area of cut/joint for cleaning into defined area
5. Use of wind and slurry shrouds (plywood, plastic, wind fencing)
6. Washing area with containment control system prior to next operation (e.g. Inlet sump air bladder seal)
7. Active vacuum systems (HEPA dust or contained liquid)
SURFACE/STRUCTURE PREP FOR EPOXIES, STAINS, CLEANING AGENTS SEALANTS, CONCRETE AND BITUMINOUS OVERLAYS
Dust controls on surface preparations require pre and post planning for all related activities to ensure bonding compatibility.
BMP 2. Wind shroud dust control for surface preparation. (University Ave).
BMP 3. High pressure deck cleaning and active pickup sweeping. (TH35).
BMP 4. Grinding and vacuum removal (TH35).
BMP 6. Appropriate enclosure for controlling dusts. Note ground covers that isolate pollutants from soil and water contact. (TH694).
BMP 7. Hydro‐deck demolition and cleaning in one operaon, ready for concrete overlay. (TH35)
BMP 3. Precast structure washing on hard surface sur‐rounded by aggregate filter moat sump drained to plastic lined surface trap. (TH36).
BMP 3. Concrete railing removal of Finish and cleaning pre prep using wet aggregate, shrouds, and gutter filter logs. Swept often. (TH61 Hastings).
BMP 4. Grinding tool attached to HEPA vacuum (TH36)
BMP 5. Shot blasting of bridge deck prior to low slump overlay. Only small areas remain for hand‐blasting (TH23)
BMP 5. Shot blasting of bridge deck prior to low slump overlay. Only small areas remain for hand‐blasting. (I35W)
Example Best Management Practices:
1. Following 1717 Site Management and Quality Control Plans
2. Wind deflection and material capture shrouds
3. Water and slurry collection management controls
4. Active connected vacuum systems & additional controls
5. Shot‐blasting and vacuum recovery
6. Enclosures
7. Hydro‐demolition delamination
SURFACE PREP FOR FAILED RAILING AND BARRIER COATINGS
Dust controls on surface preparations require pre– and post-planning for all related activities to ensure ulmate bonding compatibility. Direct air or water blasting of failed coatings without appropriate controls should not be allowed.
BMP 2. Water blast spray directed back into gutter control area using wrapped plywood shrouds (TH61)
BMP 2. Water blast spray deflected control area using plastic over railing. Note granite blast agent actively swept and water washed clean.
BMP 4/5. Blast water in flowing gutter line to gutter trap systems of SCL type compost, or sandbags checks
BMP 4. Inlet taken offline with geotextile seals, anchored with sandbags.
BMP 2/7. Material capture shroud containment over river
BMP 5. Active blast waste material pickup and dumpster containment.
BMP 3. Blast system with spray directed back onto bridge deck treatment system.
Example Best Management Practices:
1. Following 1717 Site Management and Quality Control Plans
2. Wind deflection and material capture shrouds and ground covers
3. Directionally waterblast into controlled zone, not over water
4. Install gutter checks and seal inlets
5. Water and slurry collection management controls
6. Active connected vacuum systems
7. Enclosures
8. Modified wet blasting to aggregate type
9. Work over gap sealed barges
STREET SWEEPING AND PREVENTION OF TRACK OUT
Improper sweeping practices in urban and rural environments. Road preconditioning and planning poorly implemented.
BMP 4. Exit Control Type Slash Mulch
BMP 4. Exit Control Type (3”) Crushed Rock Aggregate
BMP 8. HEPA filter sweeper attachment to pickup broom
BMP 8. High performance HEPA certified sweepers (Vikings stadium)
BMP 4. Exit Control Type Temporary Paving (Reclaim Bituminous) Millings
BMP 6. Skidsteer sweeper containment apparatus on pre ‐wet pavement (TH35 Duluth)
BMP 7. Water spray clean dust generating material from pavement surface. Cementitious materials once dried are difficult to remove by sweeping. (I35W Crosstown)
BMP 4. Exit Control Type Reinforced Geotextile
BMP 4. Exit Control Type Interlocking Floating Mat
BMP 6. Standard pickup style sweeper works with low volume sediments due to low volume water spray nozzles.
BMP 7. Perfect combination of pre‐wetting pavement prior to sweeping. Note sweeper side casts material to missing pavement or future shoulder area
BMP 4/9. Exit Control Type Wheel Washoff System
BMP 4. Exit Control Type Rumble Pad
Example Best Management Practices:
1. Develop Prevention Program
2. Following 1717 Site Management and Quality Control Plans
3. Clean pavements of previous operaon prior to sweeping, direct debris to cut‐off sump inlets, SCL Type Compost Gutter sump checks, or unpaved or future shoulder area
4. Maintain project exits, kept in a functional condition, upgrade as indicated by field observations
5. Sweep when trackout minor layer of sediment or debris
6. Use properly maintained pickup style sweeper appropriate to the task
7. Pre‐wet the pavement and sediment prior to sweeping operation
8. Use HEPA filter modified street sweeper
9. Wash tires off prior to tracking onto pavement
DEMOLITIONS OF BUILDINGS, STRUCTURES AND BRIDGES
Demolitions of structures generate high volumes of dusts composed of many constituents.
BMP 3/7/8. Use of water sprays from various sources, including metered city water, dewatering operations to isolated public water. (top to bottom: TH36 Gervais, TH36 Roseville, TH35 Duluth
BMP 7. Automated spray mister technology, developed for snow production (I35E, TH35, I35W)
BMP 2/3/4/5/7. Work performed in winter months
BMP 8. Proper water spray of deck slabs with wind fence shroud (TH35Duluth).
BMP 7/9. Water mists and debris catchment dumpsters above wetland (TH169).
BMP 7. Comparison between water mister on jack hammer operaon to high pressure/volume canon spray (TH35, TH61).
BMP 10. Blast mats help to control dusts to the maximum extent practicable during explosion. (TH12 Delano).
Example Best Management Practices:
1. Following 1717 Site Management and Quality Control Plans
2. Work during period of low wind velocities (e.g. night, early morning).
3. Rapid start to finish speed of operaon
4. Time of year
5. Stop when wind speeds exceed 12 mph
6. Defend and protect the inlets
7. Applicaon of water by misters, spray rigs, spray nozzles
8. Wind diversions and shrouds
9. Develop debris management (capture) program
10. Blast mat covers
ROCK BLASTING, MATERIAL GRINDING, AND CRUSHING
Problem. Blasng, grinding, and equipment and mechanical crushing rock, structures and pavements for gradations, reclamaon of materials generate high volumes of dusts.
Water source nearby, but not used for rock grinding (utility location, TH61 Hastings)
Missing water application
BMP 4. Apply water mists at Stockpile, hopper loader and every conveyer belt with the potential to generate dusts (TH61, I35W, TH36, TH12).
BMP 6. Blast mats help to control dusts to the maximum extent practicable during explosion. (TH12 Delano).
BMP 1/2/3/4. Well implemented material crushing program. Water spray source was freeze depressed by addition of automobile window wash fluid. (I35W Bridge)
Example Best Management Practices:
1. Develop Dust Prevention Program
2. Following 1717 Site Management and Quality Control Plans
3. Monitor wind speed and direction, with identified stop work process
4. Apply water mists and sprays at all appropriate material process locations
5. Enclose operation
6. Use blast mats and pre‐wetting when possible
CONCRETE AND DOWEL BAR DRILLING
Problem. Dowel bar drilling for pavement rehabilitation
BMP 2. Nighttime dowel drilling during low wind velocity
BMP 7. Installation of plastic shroud over drill rig (TH94)
BMP 4/5. Wet drill hole (TH610 T1 rail) drilling and active vacuum slurry removal or core cutting slurry trap wall.
BMP 6. Dust vacuum system attachment to 4 gang dowel drill machine in full operation.
BMP 4. Application of water mist away from drill bits
Example Best Management Practices:
1. Following 1717 Site Management and Quality Control Plans*
2. Night‐time work during period of low wind velocities
3. Water mists that avoid drill bit contact
4. Drill bits that tolerate water
5. Drill slurry vacuum system
6. Drill dust vacuum systems
7. Plastic cover/shrouds over drill hammers
8. Material disposal in work area of slab
PARTIAL AND FULL DEPTH PAVEMENT REMOVAL
Given the right conditions, pavement rubblization practices are typically less dust prone than backhoe removal, truck loading, and hauling
BMP 4. Multihead pavement breaker rubblization. Water mists not need this day.
BMP 4. Guillotine pavement breaker rubblization. Water sprays not need this day.
BMP 4. Bituminous pavement grinding with appropriate water to cutter head (part of cooling system). Excellent dust control (TH65).
BMP 8. Hydro-deck demolition and cleaning in one operation, ready for concrete overlay. (TH35)
BMP 4. Small bituminous saw cutter with water tank injector application (I35W Frontage).
BMP 4. Mobile missing machine that can be tracked along with pavement demolition methods (TH35E).
BMP 8. Hydro‐deck pavement demolition using AquaCutter system.
BMP 4/7. Rampart Hydro TracVac removals of shallow depth pavement removal.
BMP 4/5. Mobile panel wind and mist shroud for pavement demolitions.
BMP 4/7. Pavement hammer demolition with water mists and rubble vacuum removal (I35W).
BMP 4. Water spray application appropriate for dust generating activity (Light Rail).
Example Best Management Practices:
2. Following 1717 Site Management and Quality Control Plans
3. Monitor wind speed and direction, with identified stop work process
4. Apply water mists and sprays at all appropriate material removal operations
5. Deploy wind shrouds
6. Use pre‐weng and resonant pavement rubblization methods
7. Use power‐vacuum systems
8. Use hydro‐demolition and power vacuum systems
Follow diamond grinding guidance requirements
MOBILE CONCRETE AND MORTAR BATCH MIXING AND PLANT OPERATIONS
Problem. Specialty concrete batching
Problem. Fly ash and fine aggregates
BMP 8. Install plastic wind should over Portland cement loading hopper. (TH61 Overlook)
BMP 9. Use automated pulsed filter system for fly ash loading and unloading (I35W Bridge)
BMP 4/6. Dust and trackout control using slash mulch at drum loader.
BMP 10. Apply water to material at material source. Adjust for moisture content as needed of batched aggregate (I35W Crosstown)
BMP 4/8. Install and maintain appropriate access stabilization access materials. Scaffolding used for wind screen shroud.
BMP 4. TH35 Harris Batch plant watering slash mulch exit using treated salvaged water. (TH35)
BMP 9. Multiple daily batch access pavement pre‐weed sweeping (35W Bridge). Sweeper may need to follow every truck.
BMP 6. Batching on stabilized base (35W Crosstown). Material not allowed to dry on haul/access portion of grade
BMP 2. Install signs listing appropriate contacts. Phoenix non‐alignment permit requirement. Public notification extremely effective for controlling dusts generated by contractor.
Example Best Management Practices:
1. 1717 Site Management and Quality Control Plan Implementation*
2. Notification signage problem correction declaration
3. Equipment performance management, Hopper door seals
4. Haul road trackout stabilization liquid and dust abstraction
5. Wind deflection and material capture shrouds
6. Wash water management
7. Water
8. Enclosures
9. Vacuum systems
10. Aggregate water management, scale calibration
EPOXY CHIP SEAL COAT
Safety placards on chemicals used for bonding granite chips to pavement decks
No good dust control operation observed to date.
Fine aggregate dust emission loss during high sustained wind (TH52 Lafayette).
Example Best Management Practices:
1. Develop Dust Prevention Program
2. Monitor wind speed and direction, with identified stop work process
3. Apply aggregate chips during times of day in low wind velocities, including night and early morning
4. Use rolling isolation shrouds
5. Require reduction in granite chip fine aggregate
Copyright Soilworks, LLC 2003-. All Rights Reserved. Soilworks®, Soiltac®, Gorilla-Snot®, and Durasoil®are registered trademarks of Soilworks, LCC.
Copyright Soilworks, LLC 2003-. All Rights Reserved. Soilworks®, Soiltac®, Gorilla-Snot®, and Durasoil® are registered trademarks of Soilworks, LCC.