Hi
I tried mixing broken glass in with a soft papercrete mix, 50/50 by weight glass to papercrete mix. The result had better compressive strength, and costs less in cement. There doesnt seem to be much bonding between the papercrete and glass though, so tensile strength remains poor. It also reduced shrink during drying.
Has anyone tested various other aggregate/filler possibilities, such as wood chips, chopped plastics, straw, concrete debris, food cans, whole glass jars, plasterboard waste, hardcore and so on?
NT
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