Doors and Windows - glass block

hello,
i've just finished putting in a glass block wall, about seven feet by eight feet, using real glass and mortar. it was quite a job. now, along the jambs and head i've installed strips of foam to account for expansion, and filled in the gaps with silicone caulk. however, it would really look awesome if i went ahead and covered these gaps with mortar, so that it matched the rest of the wall. my question is, what would be the possible effects of doing this?
thanks
stosh11

The foam and silicon are soft, and will allow the glass section to expand and contract as it needs to. Mortaring in those areas would defeat its purpose. Maybe cover those edges with a wood trim to hide the gaps.

if im not mistaken the ones that are sold at home improvement store come in 2 sizes. thinlin 3in and 4in with the 3 they say use silicone but i think that with the 4in they recommend using morter between them. leonard