A. 
Description.
(1) 
The work of this article includes, but is not limited to cast-in-place cement concrete for:
(a) 
Reaction and support blocking.
(b) 
Encasements.
(c) 
Miscellaneous utility-related cast-in-place cement concrete construction.
(2) 
Related work specified elsewhere.
(a) 
Trenching, backfilling and compaction: Article VII.
(b) 
Trench paving and restoration: Article XIII.
(c) 
Manholes: Article XV.
(d) 
Storm inlets, catch basins, endwalls: Article XVI.
(e) 
Sanitary sewer pipe: Article XVII.
(f) 
Plain and reinforced cement concrete: Article XXVII.
(3) 
Definitions: none.
(4) 
Applicable Standard Details.
(a) 
DT 03050-1, Concrete Encasement Detail.
(b) 
DT 03050-2, Concrete Anchor Detail.
(c) 
DT 03050-3, Thrust Blocking Details.
(d) 
DT 03050-4, Special Concrete Encasement for Frost Protection Detail.
B. 
Quality assurance.
(1) 
Reference standards.
(a) 
Pennsylvania Department of Transportation (PennDOT), latest revision: Publication 408, Specifications.
(b) 
Inspections. Inspections by the municipality will, at a minimum, be made of the subgrade, formwork, supports, and reinforcement prior to placement of the concrete, and of the concrete prior to backfilling.
(2) 
Testing: as specified in Article XXVII.
C. 
Submittals.
(1) 
Submit concrete mix designs, including strength test records, for review and approval.
(2) 
Submit certified results of compressive strength cylinder tests.
(3) 
Submit copies of concrete batch slips.
A. 
Cement concrete.
(1) 
As specified in Article XXVII.
(2) 
For work involving a time constraint, use PennDOT Class HES (high early strength).
B. 
Reinforcement steel: as specified in Article XXVII.
A. 
Construction.
(1) 
Comply with Article XXVII for construction requirements including placement, curing, and protection of cement concrete.
(2) 
Excavate and shape trench bottoms and sides to accommodate thrust block forms, encasements, manhole bases, drop connections, inlets and vaults.
(3) 
Support pipes, valves and fittings at the required elevation with brick or concrete block. Do not use earth, rock, wood, or organic materials as supports.
(4) 
Provide spacers, chairs, bolsters, ties and other devices for properly placing, spacing, supporting and fastening reinforcement in place.
(5) 
Place concrete utilizing all possible care to prevent displacement of pipes or fittings. Return displaced pipes or fittings to line and grade immediately.
(6) 
Insure tie rods, nuts, bolts and flanges are free and clear of concrete.
(7) 
Do not backfill structures until concrete has achieved its initial set and forms are removed.
(8) 
Perform backfilling and compaction as specified in Article VII.