Street and Local Roads Inspection and Acceptance of Alternative Pavements

Alternatives Pre-cast Concrete Pavement Pre-cast Concrete Pavement

Precast Concrete Pavement  Precast concrete pavement eliminates the need for on-site cure time by using prefabricated concrete panels. The panels are made at a specialized pre-casting facility ahead of time, then hauled to the construction site and installed as needed. The result is a pavement that can be opened to traffic almost immediately after panel installation, without compromising the durability and long-term performance of the pavement  Precast concrete has long been a proven as durable pavement, providing 30 years of service life or longer with minimal maintenance.

Alternatives Continuous Concrete Pavement Continuous Concrete Pavement

Continuous Concrete Pavement   Benefits from using unreinforced concrete slabs are lower construction cost with the saving on mesh reinforcement and the potential for continuous pouring.   The contraction joints of unreinforced concrete slabs should be relatively maintenance free.

Alternatives Roller Compacted Concrete Pavement Roller Compacted Concrete Pavement

Roller Compacted Concrete Roller-compacted concrete, or RCC, takes its name from the construction method used to build it. It's placed with conventional or high-density asphalt paving equipment, then compacted with rollers. Roller-compacted concrete, or RCC, takes its name from the construction method used to build it. It's placed with conventional or high-density asphalt paving equipment, then compacted with rollers. RCC has the same basic ingredient as conventional concrete: cement, water, and aggregates, such as gravel or crushed stone. But unlike conventional concrete, it's a drier mix—stiff enough to be compacted by vibratory rollers. Typically, RCC is constructed without joints. It needs neither forms nor finishing, nor does it contain dowels or steel reinforcing. Withstands extremely heavy loads, no rutting. Will not deteriorate from spills of fuel or hydraulic leaks. Will not deteriorate from spills of fuel or hydraulic leaks. Will not soften when exposed to high temperatures. Will not soften when exposed to high temperatures. Open to traffic quickly. Open to traffic quickly. No special equipment needed. No special equipment needed. These characteristics make RCC simple, fast, and economical. These characteristics make RCC simple, fast, and economical.

Continuously Reinforced Concrete Pavement

 Type of Portland cement concrete pavement reinforced with steel re-bars throughout its length  The use of continuous reinforcement generates the random cracks in the pavement, while obviating the need for transverse contraction joints that appear prone to joint-related distresses and failures. The cracks can be held tightly by the reinforcement and should be of no concern so long as they are uniformly spaced, maintaining the structural integrity of the pavement.  The elimination of transverse contraction joints can offer high riding quality

Inspections Pre-Construction Meeting Pre-Construction Meeting  Permits  Maintenance of Traffic  Lane closures/detours  Progress schedule  Required Transmittals Pavement design Source of Materials  Required inspections and testing

Inspections and Testing SUBGRADE  Proof roll subgrade  Undercut any unsuitable or failing areas/stabilize materials (if required)  Backfill of undercut area with approved materials  Perform appropriate moisture and density testing  Verify approved typical section.

Inspections and Testing SUB-BASE  Proof roll  Remove/correct any undulating areas  Perform appropriate moisture and density tests  Verify approved typical section  Verify stone depths

Inspections and Testing FORM WORK (if required)  Ensure forms are clean and oiled  Ensure flanges are not bent  Ensure forms are sufficiently braced  Check vertical and horizontal alignment of all forms  Perform depth checks

Inspections CONCRETE PLACEMENT  Prior to placement ensure appropriate expansion joints  Testing for slump and air Rate:  Make control/lab cylinders  Ensure concrete is cured properly and in accordance with approved method.  Verify temperatures, dispatch times, cold joints

Inspections and Testing FINAL INSPECTIONS  Ensure all forms are removed  Verify all laboratory cylinder breaks are in compliance  Verify line and grade.  Straight edge joints for compliance  Perform an overall visual inspection of the pavement surface condition, condition of joint material etc