Interlocking Concrete Pavements Inspection Checklist
Regular inspection of your asphalt will ensure that your equipment performs at its best for a long period of time. This will also help in avoiding costly repairs which will eventually make you save lots of money for unncessary repairs.
MaintainX
07/22/2022
Interlocking Concrete Pavements Inspection Checklist
Regular inspection of your asphalt will ensure that your equipment performs at its best for a long period of time. This will also help in avoiding costly repairs which will eventually make you save lots of money for unncessary repairs.
Submittals
Aggregate and Sand Analysis
Base aggregate conforms to state DOT or local county requirements for road base
Bedding sand gradation conforming to ASTM C33 or CSA A3.1 FA1
Joint sand gradation conforming to ASTM C144 or CSA A179
Note limits on percent passing the 0.075 mm (No. 200) sieve
Other tests results (as required by specs) e.g. bedding sand degradation test
All tests/reports within past 12 months
Other tests results (as required by specifications) e.g. bedding sand degradation test
Concrete Pavers
Thickness correct for application as specified by the design engineer
Aspect ratio appropriate for application as specified by the design engineer
Laboratory test results for ASTM C936 or CSA A231.2
ASTM Compressive strength per ASTM C140: Average 8000 psi (55 MPa), min. 7200 psi (50 MPa)
CSA cube/cylinder compressive strength at 7200 psi (50 MPa)
Absorption per ASTM C140: Average no greater than 5%, min. no greater than 7%
Freeze-thaw durability per ASTM C1645 or CSA deicing resistance test as appropriate
ASTM optional abrasion durability per ASTM C 418
Manufacturer’s product (cut) sheets for specified paver(s)
MSDS
Other Materials
Samples of materials along with documentation of physical properties required to meet specifications
Edge Restraint (if possible)
Geotextiles
Pipes
Installer/Sub-contractor Documents
Installer job references: minimum two references of jobs of similar size and complexity
Current ICPI Certified Installer: at least one person on-site with certificate (typically job foreman or crew leader)
State, local licenses
Contract specific insurances (liability, workers compensation, etc.), performance bonds
On Site Preparation
Mock-up
Location, size, completion date
Surcharge (settlement after plate compaction)
Shows color range
Joint widths per specs/manufacturer’s literature
Paver pattern(s) and direction per drawings
Storage
Bound paver “cubes” with steel/plastic bands or plastic wrap
Each paver cube labeled and numbered
Paver cubes should may be stack up to 2 high only on level ground
Keep pavers off unpaved ground surface by pallets, plywood, etc.
Sand piles covered if wind or rain
Sediment management
Access routes for delivery and construction vehicles identified
Vehicle tire / track washing station (if specified in Erosion & Sediment plan/SWPPP) location / maintenance
Verify Site Conditions
Excavation and Base Installation (done by others)
GC or other representative provides written certification that base conforms to specifications that can include (but not limited to):
Subgrade drainage
Subgrade compacted density
Geotextile materials and placement
Base materials and thickness
Base compacted density
Base elevations, surface tolerance, and slope(s)
Foundation Walls
Confirm foundation wall can support additional load due to additional fill and materials
Materials are not placed against exterior wall materials like wood, aluminum, vinyl, brick, stucco
Verify Delivered Materials
Pavers
Source on tags matches specification
Dimensions match specification
Colors match samples submitted and mock up
Delivery amounts and dates recorded
Sands delivered to site
Bedding sand gradation meets ASTM C33 or CSA A23.1 FA1
Joint sand gradation meets C144 or CSA A179
Additional Materials
Edge restraints matches specification
Geotextile matches specification
Cleaners match specification
Sealers/joint stabilization materials match specifications
Install Interlocking Concrete Pavement
Environment/weather conditions
No work in heavy rain or snow – bedding is not saturated
No sand and pavers placed on frozen base
No frozen sand
Prepare Base
Dry base surface, free of all debris
Installation of geotextile for preventing loss of bedding sand at weep holes, drains, and joints
Installation of Edge Restraint
Elevation, placement meet specifications and drawings
Edge restraint provided at perimeter of ICP. Installation details and timing dependent on type selected.
Concrete curb or building foundation – installed before base is completed. Curbs may be installed on top of base aggregate. Completed before bedding or pavers are placed.
Direct Fastened – directly fastened or lag bolted to concrete base using corrosion resistant fasteners. May use plastic or metallic restraint. Some restraints may be installed before placement of bedding sand and pavers and completed afterwards.
Spiked – placed directly on base which extends well beyond outside of restraints. May use plastic or metallic restraint. Some restraints may be installed before placement of bedding sand and pavers and completed afterwards.
Installation of sand and pavers
Sand screeded to 1 in. (25 mm) thickness (can be min. ¾ in. (20 mm) over concrete or asphalt base)
String or chalk line to start and maintain straight bond lines (laser transit okay)
Paving pattern matches drawings
Cut pavers: no small than 1/3 paver in areas exposed to tires
Joint width range among pavers matches specifications
Adjust/straighten bond lines prior to initial compaction
Cut pavers in place prior to initial compaction of given area
Paver surface broom clean prior to initial compaction
Minimum 5,000 lbf plate compactor for compacting pavers (minimum dimensions of plate?)
Broken and chipped pavers marked, removed and replaced after initial compaction
Use stabilized joint sand meeting specifications if required
Joint sand evenly spread over surface of pavers prior to final compaction
Joint sand dry before final compaction commences
Simultaneous sweeping and vibrating sand into joints with minimum of 4 passes of plate compactor
No compaction within 6 ft (2 m) of an unrestrained edge of pavers
All pavers compacted within 6 ft (2 m) of the laying face at the end of each day
Cover uncompacted laying face when threat of rain
Remove excess sand after entire pavement is compacted and joints are filled to bottom of chamfer; broom clean
If using stabilized joint sand activate according to manufacturer’s directions
Quality Control
Surface elevation of pavers ¼ (6 mm) above adjacent drainage inlets, concrete collars, or channels
Surface elevations conform to drawings
Pavers 1/8 to ¼ in. (3 to 6 mm) above curbs, inlets, concrete collars and channels
Lippage: no greater than 1/8 in. (3 mm) difference in height between adjacent pavers
Bond (joint lines) lines: ±1/2 in. (15 mm) over 50 ft. (15 m) string line
Check filling of joints with sand with putty knife: max 1/4 in. (6mm) below chamfer edge at completion. Fill and re-vibrate if necessary
Cleaners and sealers
Cleaning and sealing may or may not be a requirement of the project
Apply according to manufacturer’s directions
Keep all traffic from sealed surface during curing (drying) time
Finish Project
Final Inspection
Surface swept clean
Elevations and slope(s) conform to drawings
Transitions other paved areas separated with edge restraints
Remove excess debris and materials from ICP area
Punch list signed by inspector after inspection and repairs are complete
Inspector to provide signed final inspection report to GC and paver installation contractor
Protection
General contractor to protect paver area after paver installation subcontractor completes work and leaves site
Maintenance Pavers
Delivery location, date and time
Verify amount delivered
Source: MaintainX (Community Member)