chapter 3 rigid pavement - DOT On-Line Publications - Department ...

Table 1 - Recommended Longitudinal
Sizes
FHKA TECHNICAL ADVISORY T 5080.14
June 5, 1990
Minimum and Maximum Bar Size 1
Pavement Thickness
1 % Steel / 8" ( 9" 1 10" 1 11" I 12" I 13" I
0.60 4,5 5,6 5,6 5,6 5,6 6
0.62 0.64 5,6 5,6 5 6 5,6 5 7 5,6 5,7 ;:; 667
0.66 55': 5'7 5'7
ii:: 6'7
0.68 516 5:7 5:7
6;7
Note: Bars are uncoated deformed bars.
Reinforcement
(d) The use of epoxy coated reinforcing steel is generally not
necessary for CRCP. However, in areas where corrosion is a
problem because of heavy applications of deicing salts or
severe salt exposure, epoxy coating of the steel may be
warranted. The bond area should be increased 15 percent to
increase the bond strength between the concrete and
reinforcement if epoxy-coated steel reinforcement is used.
(e) When splicing longitudinal steel, the recommended minimum
lap is 25 bar diameters with the splice pattern being either
staggered or skewed. If a staggered splice pattern is used,
not more than one-third of the bars should terminate in the
same transverse plane and the minimum distance between
staggers should be 4 feet. If a skewed splice pattern is
used, the skew should be at least 30 degrees from
perpendicular to the centerline. When using epoxy-coated
steel, the lap should be increased a minimum of 15 percent
to ensure sufficient bond strength.
VI Plan details or specifications are needed to insure
sufficient reinforcing at points of discontinuity as
described in paragraphs 4e(3) and 4f(l).
3.6.3