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This page is a personal reference page with links to examples and pages that are under construction.

Current Pages:

Joints

Roller-Compacted Concrete (RCC) Mixture Proportioning

Roller-Compacted Concrete (RCC) Materials Selection Fine aggregates section

Joint Resealing

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State Seal/No Seal Stipulations
Arkansas Seal
Colorado Seal Silicone sealant, one blade width
Delaware Seal
Idaho Seal
Illinois Depends -> Unsealed transverse, Sealed Longitudinal
Iowa Seal
Kansas Depends -> Unsealed on bound base, Sealed on aggregate base
Louisiana Seal
Maryland Seal
Minnesota Depends -> Unsealed for > 45 mph with drainage, Sealed otherwise
Missouri Unsealed
Montana Seal
New York Seal
North Carolina Seal
Ohio Unsealed
Oklahoma Seal
Oregon Seal
Pennsylvania Seal
South Carolina Seal
Utah Seal Seal initially but rehab depends on region
Virginia Seal
Washington Seal
West Virginia Unsealed
Wisconsin Unsealed
Wyoming Seal
Note: Data up to date as of 2014

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Joint Sealant Diagrams

Pavement Types:

Joint Layout:

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A Brief Introduction to Concrete Pavements

ConcreteHighway.jpg
Concrete pavements utilize cement to create a rigid surface which can be used for numerous applications. The most common applications are highways, streets, roadways, airports, industrial sites, and parking facilities. Due to the concrete's rigidity, concrete pavements distribute applied loads over a wide influence area. The most common types of concrete pavement are jointed plain concrete pavement (JPCP), jointed reinforced concrete pavement (JRCP), and continuously reinforced concrete pavement (CRCP). The main difference that distinguishes between these three systems is the jointing system used to control crack development and transfer load. Additionally, pervious concrete pavement and roller-compacted concrete (RCC) pavement have been gaining popularity in recent years. These two types of concrete pavement utilize optimized mixes and construction methods to achieve different properties than the three more traditional types of concrete pavement. These typically behave as undowelled jointed plain concrete pavements which rely on aggregate interlock and subgrade support to transfer the load between slabs.

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Table from the Utility Cuts Article

Dowel Size Recommendations for Utility Cut Restorations in Jointed Concrete Pavements
Adjacent Pavement Thickness, in. (mm) Dowel Diameter, in. (mm) Drilled Hole Diameter, in. (mm)
Grout Epoxy
≤ 7 (≤ 175) No Dowel N/A N/A
7 to 8 (175 to 200) 1.0 (25) 1.2 (30) 1.08 (27)
8 to 9.5 (200 to 240)* 1.25 (32) 1.45 (37) 1.33 (34)
10+ (250+) 1.5 (38) 1.7 (43) 1.58 (40)
* 1.5 in. (38 mm) diameter dowel bars, with the appropriate drill hole diameter, might instead be used in 8 to 9.5 in. (200 to 240 mm) thick utility cut restorations if more cost effective.
Replication of Dowel Size Recommendations for Utility Cut Restorations in Jointed Concrete Pavements
Adjacent Pavement Thickness, in. (mm) Dowel Diameter, in. (mm) Drilled Hole Diameter, in. (mm)
Grout Epoxy
≤ 7 (≤ 175) No Dowel N/A N/A
7 to 8 (175 to 200) 1.0 (25) 1.2 (30) 1.08 (27)
8 to 9.5 (200 to 240)* 1.25 (32) 1.45 (37) 1.33 (34)
10+ (250+) 1.5 (38) 1.7 (43) 1.58 (40)
* 1.5 in. (38 mm) diameter dowel bars, with the appropriate drill hole diameter, might instead be used in 8 to 9.5 in. (200 to 240 mm) thick utility cut restorations if more cost effective.





Recommendations for Percent Entrained Air Based on Maximum Aggregate Size
Maximum aggregate size, in. (mm) Entrained air, %
1½ (38) 5½ ± 1
3/4 (19) or 1 (25) 6 ± 1
½ (13) 7 ± 1
3/8 (9.5) 7½ ± 11
Recommendations for Percent Entrained Air Based on Maximum Aggregate Size
Maximum aggregate size, in. (mm) Entrained air, %
1½ (38) 5½ ± 1
3/4 (19) or 1 (25) 6 ± 1
½ (13) 7 ± 1
3/8 (9.5) 7½ ± 11



Minimum Opening Strength for Utility Cuts of Various Thicknesses and Lengths
Utility Cut Thickness, in (mm) Compressive Strength for Opening to Traffic, psi (MPa)
Utility Cut Length
< 10 ft (3.0 m)
Utility Cut Length
> 10 ft (3.0 m)
6 (150) 3,000 (20.7) 3,600 (24.8)
7 (175) 2,400 (16.5) 2,700 (18.6)
8 (200) 2,150 (14.8) 2,150 (14.8)
9+ (225+) 2,000 (13.8) 2,000 (13.8)


Minimum Opening Strength for Utility Cuts of Various Thicknesses and Lengths
Utility Cut Thickness, in (mm) Compressive Strength for Opening to Traffic, psi (MPa)
Utility Cut Length
< 10 ft (3.0 m)
Utility Cut Length
> 10 ft (3.0 m)
6 (150) 3,000 (20.7) 3,600 (24.8)
7 (175) 2,400 (16.5) 2,700 (18.6)
8 (200) 2,150 (14.8) 2,150 (14.8)
9+ (225+) 2,000 (13.8) 2,000 (13.8)

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For more info on igneous rock see wikipedia.

Practice

Table 3-11. Typical CTE Values for Common Portland Cement Concrete Ingredients

Coefficient of thermal expansion
10-6/°C 10-6/°F
Aggregate
Granite 7 to 9 4 to 5
Basalt 6 to 8 3.3 to 4.4
Limestone 6 3.3
Dolomite 7 to 10 4 to 5.5
Sandstone 11 to 12 6.1 to 6.7
Quartzite 11 to 13 6.1 to 7.2
Marble 4 to 7 2.2 to 4
Cement paste (saturated)
w/c = 0.4 18 to 20 10 to 11
w/c = 0.5 18 to 20 10 to 11
w/c = 0.6 18 to 20 10 to 11
Steel 11 to 12 6.1 to 6.7

Note: These values are for aggregates from specific sources, and different aggregate sources may provide values that vary widely from these values.