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Square Dowel Basket Master Specification
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Square Dowel Basket Assembly MSDS
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PNA's square and round dowel baskets are the highest quality on the market and can be custom made to suit any specification. Note that PNA's plate dowel baskets, the PD³ Basket^® assembly and Load Plate Basket^® assembly, are a more efficient use of steel, easier to install and more cost-efficient than round and square dowel baskets. Refer to the PD³ Basket^® assembly and Load Plate basket assembly sections of the web site for design and installation advantages of plate dowel baskets.

PNA Square Dowel Basket Assembly

Design Advantages

• Provide an increased bearing area of steel at the joints for load transfer
• Limits differential deflection across joints to minimize joint spalling
• Provide continuity of surface profile in thin slabs - minimum depth 4 inches
• PNA Square Dowel Clips™ hold foam in place to allow lateral movement to accommodate slab shrinkage and act as a de-bonding agent
• Can be located up to within six inches of a joint intersection

Installation Advantages

• Requires fewer man hours for installation than historical methods
• Easy to handle - can be carried and installed by one person during concrete placement
• Allows for easy subgrade leveling at any point prior to concrete placement to prevent rutting, restraint and cracking
• Construction tolerances allow for misalignment without causing restraint in the panels
• Fully welded assemblies, offering stable dowel support during installation
• Bundled and shipped on skids for easy shipping and handling on the jobsite
• Custom and stock baskets available through national distribution network

PNA Round Dowel Basket Assembly

Design Advantages

• Limits differential deflection across joints to minimize joint spalling

Installation Advantages

• Requires fewer man hours for installation than historical methods
• Easy to handle - can be carried and installed by one person during concrete placement
• Allows for easy subgrade leveling at any point prior to concrete placement to prevent rutting, restraint and cracking
• To eliminate excessive onsite greasing, PNA can ship baskets with a factory applied debonding agent
• Fully welded assemblies, offering stable dowel support during installation
• Bundled and shipped on skids for easy shipping and handling on the jobsite
• Custom and stock baskets available through national distribution network

It is imperative that round dowel baskets are positioned so that the dowels are at 90º to the joint to prevent the dowels from restraining the joint.

See the PD³ Basket^® assembly section of this web site for more information regarding this improved technology.

Dowel size and spacing for construction and saw-cut contraction joints

Source Material: ACI 360R-06, Design of Slabs-on-Ground, Tables 5.1 & 5.2; ACI 302.IR-04, Guide for Concrete Floor and Slab Construction, Tables 3.1 & 3.2
* Total dowel length includes allowance made for joint opening and minor errors in positioning dowels
** Rectangular plates are typically used in saw-cut contraction joints
*** Construction tolerances required make it impractical to use diamond-shaped load plates in saw-cut contraction joints
Note: Table values based on maximum opening of 0.20 in.(mm). Dowels must be carefully aligned and supported during concrete operations. Misaligned dowels may lead to cracking.