History of Concrete Paving In Iowa - Iowa State University Extension ...
History of Concrete Paving In Iowa - Iowa State University Extension ...
History of Concrete Paving In Iowa - Iowa State University Extension ...
SHOW LESS
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Load Transfer<br />
• 1958 to 1969 – 20 foot joint<br />
spacing with aggregate interlock<br />
• Load transfer<br />
▫ ADTT >500 -1969<br />
▫ ADTT>300 -1995<br />
• Joints perpendicular until 1980<br />
• Skewed 6:1 1981 to 2004<br />
• Perpendicular 2005<br />
• ATB or CTB subbase specified<br />
ADTT>700 1976 to 1981<br />
• Granular subbase 1989<br />
• ADTT>300 1995
Change language