No, you must not. The amount of water for the AZ 129 nano-concrete mortar has been specially reduced.
The flexibility is achieved owing to an addition of a dispersant, which also causes a self-thickening effect of the mortar and complete filling of voids inside a post. Reduced amount of water, in addition to nano-additives used, allows also to minimise salt efflorescence, visible in a form of white tarnish on clinker surface.