the consist of precast slabs fixed on concrete posts
Timber piles, Concrete piles, steel piles, composite piles,Driven cast in situ piles, Bored cast in situ piles, Driven precast piles, Bored precast piles,Prestressed concrete piles, under reamed Piles
Prefabricated is a general term for anything that is assembled in a factory rather than on-site. Precast would be specifically applicable to anything that could be formed in a mold (concrete, perhaps glass, metal, etc.).
A precast concrete panel is: A panel, tile, counter, Fin, wall etc that is usually poured in a controlled manufacturing facility (although it can be poured on site) into a mold of a specific shape. Whether it is mass produced or a custom shape the precast panel is usually finished (sealed) before installation (although, again this also can be done on site). There are 2 ways to istall concrete products: Pour on site or precast and install. There are many pros and cons for each process. Which method to use depends on what the customer/architect/designer/engineer is trying to accomplish.
Bridge sections, tunnel sections and other places where setup of a normal pour is cost prohibitive.
comparatively cheaper
No, GMO foods are not cheaper than conventional foods.
I watched the builders put down precast on the ground.
Check with the precast supplier or manufacturer of the product.
the consist of precast slabs fixed on concrete posts
They are usually cheaper, but to make sure, do a price comparison with more conventional sites
lol
Yes, the price gap is closing as the price of dry milk goes up, it is still a little cheaper...but not much!
yes
of corse you can
nope
No, it's more expensive. Sometimes it can actually go up to twice the price of conventional food.