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@sweetjoy Hey Joy, that's an interesting question there!

I'd like to inform you that precasted statues made of concrete do exist! It's a technique that has been used for a while. As you can realize, the demand for strength and resistance against mechanical distortion is rather low when building a statue, as statues are very rarely designed to withstand forces. However concrete structures are more resistant to severe weather conditions due to the fact that concrete is an inert material and therefore the structure's strength isn't affected by the presence of molecules of water.

Concerning the cost, concrete is a composite material so the expense of gathering all materials needed is not fixed as it depends on geography and topography. In parts of southern Europe for instance it's much more cost efficient to use concrete, whereas in the US lumber is preferred. This is highly relevant to a country's economy and natural resources.

I assume that building concrete statues costs less than doing so using metals. Mining, processing, shaping, molding and carrying around metals comes with certainly bigger expenses.

Thanks for your comment!

Thank you for helping me in researching this. Joy

My pleasure :)