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[SEAOC] Ltwt PT Slabs

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I've always avoided using lightweight concrete in post-tensioned 
slabs due to lower shear strength, lower modulus of elasticity, 
greater shrinkage, etc.

Now I am re-designing a project that has added more stories so there 
is a strong incentive (lateral and vertical) to switch to lightweight.

Does anyone have any experience (positive or negative) to share?


Steven Tipping + associates
Mark Nienberg, S.E., Associate