chapter 3 rigid pavement - DOT On-Line Publications - Department ...
chapter 3 rigid pavement - DOT On-Line Publications - Department ...
chapter 3 rigid pavement - DOT On-Line Publications - Department ...
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FHWA TECHNICAL ADVISORY T 5080.17<br />
July 14, 1994<br />
ATTACHMENT 6<br />
CHECKLIST FOR QUALIFICATION OF FACILITIES<br />
FOR PRESTRESSED CONCRETE PRODUCTION<br />
1. Items which require written approval:<br />
applicable blanks)<br />
(a) Plans and computations of facilities<br />
(check<br />
(b) Concrete mix design (should include curves<br />
for 28-day strength) vs W/C Ratio:<br />
(cl<br />
(d)<br />
(e)<br />
IfI<br />
(g)<br />
Curing method<br />
Epoxy-sand mortar, if used<br />
Coal tar epoxy, if used<br />
Water reducer-retarder<br />
Design Engineer should be approved by State<br />
<strong>DOT</strong><br />
(h) Gauge calibration should be certified<br />
ci, Computations regarding beam tests (2 weeks<br />
prior to testing)<br />
2. What is length and capacity of stressing bed(s)<br />
Bed No.<br />
Bed No.<br />
Bed No.<br />
Length<br />
Length<br />
Y Length<br />
Capacity<br />
Capacity<br />
Capacity<br />
3. Procedure of prestreasing (pretensioning) and stress<br />
release:<br />
.*. -<br />
(a) Jacks, carriages, and struts are adequate to<br />
attain and maintain design stress.<br />
Yes No<br />
Comments:<br />
3.10.4s
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