structSU10
Structural
- Mar 3, 2011
- 1,062
I am looking into a proposed design using macro synthetic fibers for a slab on grade - it uses the eurocode TR34 to determine flexural strength with the fibers. ACI 360 appears to use a similar procedure based on yield line and such, so the general approach seems acceptable to ACI.
The one issue I run into is ICC-ES reports for the various macro fibers I research; many of them are noted that the macro synthetics cannot replace required structural reinforcement.
I am confused by this as the ACI 360 and TR34 procedures treat it as strengthed plain concrete with an improved modulus of rupture to help reduce slab thickness, but per the ICC ES report it appears the fiber is to be added as more of a fail safe than to be relied upon structurally. Anyone else run into this that may have some insight?
The one issue I run into is ICC-ES reports for the various macro fibers I research; many of them are noted that the macro synthetics cannot replace required structural reinforcement.
I am confused by this as the ACI 360 and TR34 procedures treat it as strengthed plain concrete with an improved modulus of rupture to help reduce slab thickness, but per the ICC ES report it appears the fiber is to be added as more of a fail safe than to be relied upon structurally. Anyone else run into this that may have some insight?
