Crack along Precast Concrete Wall

[EngineeringNgma]

We are using steel bar along loop wire for precast concrete panel to panel connection and is grouted with non shrinkable grout afterwards. Even than crack is appearing along the joint.Even tried of chipping crack and filling it with SIKA Dur but situation persist.Can anybody suggest me solution.

 

[bridgebuster]

You're attachment was a blank page with a red circle.

If the joints in question are on a flat surface try methyl methacrylate.

 

[Tmoose]

The picture shows a vertical crack. It is very faint.

Are these panels interior or exterior? Any fire resistance or seismic requirements?

Who specified grout instead of caulk or sealant?

http://www.pci.org/uploadedFiles/Si...Resources/_Related_Content/PCI_DWP_binder.pdf

http://midstatesconcrete.com/downloads/PCI Architectural Precast Concrete Design Manual.pdf

 

[EngineeringNgma]

These are the exterior panels from outside joint has been caulked but for interior painted surface is required. Please see the image which has been treated with SikaDur. No Seismic or fire resistance requirement. Grout has been specified by designer.

 

[Teguci]

I would think that the connection provides axial and shear but very limited moment transfer across the joint. Any out of plane bending will cause some flexure and subsequent cracking. This moving joint needs a flexible sealant system to cross the transition.