I have been thinking a lot lately about alternative building techniques (nope not a BFI thread, just hold on).
One of the things I researched in the past is icochanvre or fibercrete. Basically it utilizes the silica found in plant stems in place of part or all of the sand in a normal lime morter or concrete recipe. Weeeeellll i got to thinking about spend grain, mostly silica rich husks left when we are done with them especially if I were to rinse the grains well to get any residual sugars out.
Could one then mix this with some hydrated lime and sand and make a fibrecrete like product? BrewCrete?