Pumice sand replacement with normal-weight one considerably increases bond strength.

All-LWASCC bond strength (splitting) is by approx. 80% lower than that of NWSCC.

All-LWASCC bond strength (pull-out) is by max. 30% lower than that of NWSCC.

Bond length increase leads to decreasing of the max. normalized bond stress, ${\mathrm{\tau }}_{\text{u}}^{\ast }$.

Increase of bar dia. increases/decreases ${\mathrm{\tau }}_{\text{u}}^{\ast }$ for pull-out/beam tests, respectively.