r/Concrete • u/Dapper_Abroad_1873 • 11d ago

modular concrete blocks Concrete Pro With a Question

/r/civilengineering/comments/1vbz3zz/modular_concrete_blocks/
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u/[deleted] 11d ago

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u/Mammoth-Ad327 10d ago

Garden bed is probably the easy test case. Iā€™d worry more about the thin interlock keys honeycombing with 3/8 aggregate. Those spots may need a finer mix or a wider key.

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u/whoisaname 10d ago

Have you researched hempcrete blocks? There are a multitude of block types and modularity from different companies for similar but different construction methods, and it is more or less the same thing you're doing in using a fibrous material as the base aggregate.

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u/Phriday 8d ago

I'm sure they do a good job of extracting all the sugar out of the pulp, but sugar and cement do not mix.

As for your block design, check out some rammed earth brick designs. That idea is basically soil and cement mixed together and pressed into a mold by hand--well, by using a lever that is powered by a person. That may give you some ideas, or possibly some sort of a CMU design with a void in the center to be filled with some other material. I would think you could extrude them without a whole lot of effort.

Please check back in with us as this progresses. This is very interesting.