Lightweight Concrete for High Strength - Expanded Shale & Clay
Lightweight Concrete for High Strength - Expanded Shale & Clay
Lightweight Concrete for High Strength - Expanded Shale & Clay
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6.3 Conclusions Regarding Prestress Losses<br />
Except <strong>for</strong> the AASHTO lump sum and PCI methods <strong>for</strong> 8,000-psi HPLC, each of the<br />
four methods <strong>for</strong> estimating prestress losses overestimated the total losses measured in 8,000-psi<br />
and 10,000-psi HPLC AASHTO Type II prestressed girders. The under-estimates <strong>for</strong> the<br />
AASHTO lump sum and PCI methods <strong>for</strong> the 8,000 psi girders were less than 2 percent. This<br />
means that each of the four methods may be conservatively used to predict prestress losses in<br />
HPLC girders.<br />
6-7
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