A piece of rebar would make the strongest axle, but you can also use a screwdriver blade or the axle from a wheeled garbage can.
The only market that would buy what the mini mills made was the rebar market, because there are almost no specs for rebar, and once you've buried it in cement you can't verify if it made them anyway, so it was just the perfect market for a crummy product.
To meet the need of deep roadways with large deformation, various extensible rock bolts were invented, involving the bolts made from the rebar with high elongation rate and those with slip components.
Dr. MacDonald added a small percentage of silica fume, another industrial waste material, to the mix for the bridge's box girders, to make the concrete more impermeable to road salt, which corrodes rebar, eventually destroying concrete from within.
Brick walls outline several rooms and steel rebar towers hold the promise of a second story that would make the house one of the biggest in the village.
So, as the mini mills expanded their capacity to make rebar, the integrated mills shut those lines down, and, as they chopped off the lowest-margin part of the product lines, their gross-margin profitability improved".
Six 20-foot-tall bowers made of rebar (the rough iron rods used to reinforce concrete) contain the bougainvillea bushes, which rise inside them, bursting out at the top.
The rebar was modeled as embedded regions in the concrete in the interactive module, and making the concrete for the host.
"Anyone can make rebar, but steel used to make appliances and cars" — sheet steel, at the top of the market — "is really tough to make.
were used as raw materials to make rebar graphene sheets as all-carbon flexible transparent conductive electrodes (see Figure S10 for details).
