[UtakataNoAnnex]

How much will the crane expedite the construction of each storey?

...hopefully a lot quicker than what it took to get up to floor 11. >.<

 

[Benito]

Today.

 

[forestaxcel]

ventilation sub for this one?

 

[jibsta]

THEY POURED THE CORNER!!!!

 

[khaldoon]

THEY POURED THE CORNER!!!!

They already have stuff on top of it so they must’ve poured it Friday or Saturday.

 

[MrHappypants19]

Question: Assuming it were possible to pour a slab per week (or faster), what is the minimum time required for concrete to dry before starting on the next storey or pouring the next slab?

The concrete usually fully drys 7-10 hours after the concrete is poured. Though it's only after 3-4 days the concrete meets 75% strength requirement to be deemed safe to strip. Then as long as it achieves 100% of that strength after 28 days then all is fine and dandy. 3 days is typically achievable without any accelerants, though if you add chemicals to allow curing in colder temperatures (‘wintermix’) or retardant in the mix you may not always get to that result in time. You can also add accelerants to allow the slabs to achieve the 75% strength faster (‘High Early mix’). So on a 4 day (per floor) forming/pouring cycle they would use a 48hr HE mix in all slab and wall mixes.

 

[thaivic]

 

[dodgeram]

THEY POURED THE CORNER!!!!

The poured ALL the corners I think

 

[3Dementia]

^ So that's 2 storeys above the fruit vendor completely poured and 'hung'... (only 90 to go).... I'm gettin' whiplash.

 

[vinny_the_hack]

The concrete usually fully drys 7-10 hours after the concrete is poured. Though its only after 3-4 days the concrete meets 75% strength requirement to be deemed safe to strip. Then as long as it achieves 100% of that strength after 28 days then all is fine and dandy. 3 days is typically achievable without any accelerants, though if you add chemicals to allow curing in colder temperatures (‘wintermix’) or retardant in the mix you may not always get to that result in time. You can also add accelerants to allow the slabs to achieve the 75% strength faster (‘High Early mix’). So on a 4 day (per floor) forming/pouring cycle they would use a 48hr HE mix in all slab and wall mixes.

Thanks for that thorough explanation. I appreciate it.

 

[Rascacielo]

Today. Ground-level shots showing 3 of the filled-in second floor corners

Northeast

Northwest

Southeast

 

[thaivic]

 

[jibsta]

how do those huge work platforms attach? do they have to drill and anchor them everytime?

 

[Benito]

Today.

 

[jibsta]

seems their tie and conduit speed is still quiet slow, like they should be pouring!