Does grout for bathroom and kitchen floor tiles work and act similar to concrete...? I want to make a simple concrete dish/bowl like the ones I see in modern home decor places/magazines and on youtube/google. I found a DIY tutorial where you basically make a simple mold out of 2 tupperware containers. Pour the concrete inside and let it set/dry, cut/take off the containers and than bam...you now have a concrete dish/bowl for putting stuff inside. Well...I have a friend that has some leftover Quikrete grout and I was hoping I could use grout instead of concrete and still get the same results and/or performance as regular concrete. Will the Quikrete grout be fine instead of concrete for this project...?