reinforce retaining wall?

[stephanh]

OK - I have concrete in the trench and appears to be not as evil as it may have been. I have gone deeper than necessary (not deliberate) and therefore about 250mm over depth with concrete fill. One end of the trench has a good level finish, while at the other end (10M away) is where it is thrown out of level. I have a distance of 745mm between dpc on existing building and top of concrete in new foundation.

As 675mm is 3 course of block, I am 70mm deeper and needing to make that up, therefore thinking cut down the concrete blocks to required thickness. I do, however, have an enormous stack of concrete paviors (pavers?) which would get me to the height needed without cutting loads of blocks. I would use one course of paviors to lift me to correct depth, filling the whole width of the trench and for whole length required.

Only thing is, I am not sure as to whether or not these are suitable to use coming off of concrete foundations and supporting concrete blocks above. 

Has anyone used these things in such fashion, or can advise with regard to suitability??

[saveasteading]

11 minutes ago, stephanh said:

whether or not these are suitable to use coming off of concrete foundations and supporting concrete blocks above. 

They don't know they are paviors. They will work fine as masonry blocks. Will the width work, or be laid sideways?

[stephanh]

1 hour ago, saveasteading said:

They don't know they are paviors. They will work fine as masonry blocks. Will the width work, or be laid sideways?

Thanks - I did look at the logic of it and come to that conclusion, but when everything you (me) seem to touch at the moment turns to rats, confidence seems to sink somewhat.

I shall lay length wise across the trench and bond accordingly, and continue throughout the length of trench as required. I know it will take a little time, which if I had had a better day with the pour would not be necessary, but .........