u/Interesting-Deer3645

I am designing a massive transfer slab and the shear reinforcement is incredibly dense. I am genuinely worried the contractors will not be able to vibrate the concrete properly through all this steel. I specified a self compacting mix but I have seen contractors ruin those by adding water when the mix gets sticky. What do you guys specify to ensure the mix flows through tight rebar cages without segregation?

i am directing my first indie feature later this year and we have a fairly ambitious opening sequence. i want to have the camera blocking and lighting planned out perfectly to save time on set. the problem is i cannot draw to save my life and we do not have the budget to hire a dedicated storyboard artist right now. i tried using basic 3d software but it takes way too long just to pose characters. how do you guys plan out your shots visually when you have zero illustration skills?

gearing up for a commercial retaining wall pour next month that has a massive amount of rebar reinforcement ties. the space between the steel is so tight that standard mechanical vibrators are going to struggle to reach the bottom, and i am terrified of stripping the formwork and finding major honeycombing or structural voids

we are looking at adjusting the mix design to move toward a self-consolidating concrete spec. the trick to getting that fluid flow without causing severe aggregate segregation is relying on a high-range water reducer rather than just adding extra water to the mix. specifying a polycarboxylate superplasticizer like the ones supplied by Arit allows the concrete to flow like syrup through dense rebar grids while keeping the mix completely cohesive. what mix adjustments do you specify when dealing with extreme rebar congestion?