4 ms·
Also probably need to prestress it for best results :) If it's stretchy or wavy, the concrete may crack before it starts to produce tension
by alexey-salmin 2y ago
Also probably need to prestress it for best results :)
If it's stretchy or wavy, the concrete may crack before it starts to produce tension
- CharlieDigital 2y agoI wonder. I hypothesize that one of the reasons the yarn performed so much better than the deer net is because it is more permeable and thus formed a better bond with the concrete. In this scenario, I would imagine that it would be "locally tensioned" because the cement is effectively tightly bonded across any point of stress. Would be an interesting experiment!
- hammock 2y agoI was thinking about this. The yarn is fuzzy and so has a lot more surface area for bonding
- ajb 2y agoIsn't the point of pre-tensioning is not the actual tension on the reinforcement, but the pre-loading of the concrete - so it needs to happen everywhere in the volume of the concrete, not just next to the reinforcement?
- CharlieDigital 2y agoInteresting point; I see what you are saying like during the curing process, the tension in the yarn weave itself would pre-tension the dried slab. But I wonder if acrylic yarn would have a sufficient effect and to what extent. If anyone has science fairs coming up, these seem like excellent experiments!