How to Build a Canoe With Concrete

You have to make it under 62.4 pounds per cubic foot so that's the the max number you're going for fun fact this is basically your civil engineering degree in a nutshell Luke makes and concrete. So from there instead of using sand or gravel because they're heavy they use uh little glass spheres as their aggregate which reduces the weight of their concrete. The best method is trial and error, she says maybe up to a thousand batches to test everything or whatever you have time for okay? You'll want to model like a key in there so that you can easily get the other sections out of your mold without them cracking and now you build your canoeyou apply reinforcements which can either be done