When I had our house extension built, 2nd floor concrete slab was poured and finished within one day, I rented a 1 bag mixer, and around 10 guys to haul up the concrete. Work started 7 am, up to around 10 pm, nonstop. Same with our third floor, except that I added 2 more guys to man the block and tackle for winching up the concrete buckets.

If you stop halfway, chances of your roof having a water leak is more likely. Cement will crack on the jointed part. I suggest you do it in one pass. Be prepared to feed them, merienda, lunch, dinner, energy drinks, cold water, etc. Well fed, ang mga construction workers hataw lang ng hataw yan. My concrete slabs are now crack free.

My 2 cents.