Hi All,

Just building a block feature wall (not retaining) and have used 200 series block for most of it, but need to use 100 series in one area due to space limitiations. This section is only 1400 long and 1200 high.

As it is all above ground I am using standard blocks and have just layed them with mortar.

My sense of structural soundness is ringing alarm bells as it just doesn't seem that it will be strong enough with just mortar......so I am thinkig of core filling it but the gap is tiny in these little blocks. I don't think pea gravel will flow well.

Has anyone used crusher dust as a replacement to gravel for core filling mix to have a runny consistency. Would this work ok?

GAM