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PRECAST CONCRETE BOX CULVERTS
Dry-Cast (Machine Made) • Product cast using mechanized equipment. • Form vibrators consolidate zero-slump concrete between core and jacket. • Hole formers may be incorporated, or coring is done as
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SAFE HANDLING OF PRECAST CONCRETE …
precast.orgNational Precast Concrete Association Safety Program of the Quarter - Fall 2007 Chains and Slings 1 SAFE HANDLING OF PRECAST CONCRETE PRODUCTS …
PRECAST CONCRETE MANHOLES
precast.orgPRECAST CONCRETE MANHOLES Round Structures • ASTM C478, “Standard Specification for Precast Reinforced Concrete Manhole Sections”
PRECAST CONCRETE MANHOLES
precast.org4 • MANHOLE TECHNICAL • NATIONAL PRECAST CONCRETE ASSOCIATION Precast concrete manholes are a smart choice for projects applying for LEED certification.
NATIONAL PRECAST CONCRETE ASSOCATION
precast.orgMATERIALS The primary constituents of precast concrete are cement, fine and coarse aggregates, water and admixtures. The following discussion covers relevant factors in the
PRECAST CONCRETE BOX CULVERTS
precast.orgINTRODUCTION • Standard box sizes: 3’ x 2’ to 12’ x 12’ in 1’ span and rise increments. • Typically come in 6’ and 8’ lengths. • Custom box sizes: Nonstandard sizing
PRECAST CONCRETE PIPE
precast.orgTOPICS • Minimum Structure Size. • Maximum Angle into Rectangular Structures. • Minimum Angle between Pipes entering Round Structures. • Minimum Pipe Depth.
PREVENTING HAND INJURIES - Precast concrete
precast.orgHow important are your hands? The hand is one of the most complex parts of your body - the movement of the tendons, bones, tissues and nerves allows you to
Precast Concrete Traffic Barriers
precast.org• Reduce the risk of an out-of-control vehicle crossing the median and colliding with opposing traffic or roadway workers.
Fixed and Portable Ladders- A Guide to OSHA Rules
precast.orgRungs, cleats and steps of portable and fixed ladders (except as provided below) must not be spaced less than 10 inches (25 cm) apart, not more
Notice Overhead Crane Safety and Inspection …
precast.org1 Overhead Crane Safety and Inspection Requirements Notice It is the responsibility of the Owner/User to install, inspect, test, maintain, and operate a crane or ...
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