I've wanted poured concrete counters in the kitchen for some time. Only two thing prevent it...Budget and husband's willingness. So I search high and low for a product called Skimstone and finally found it. Not sure if it's be cost prohibitive but instructions sure look labor intensive...SO...I saw a remodeling show that use the concrete board above a fireplace and the ole wheels & gears started spinning. If they could use it as a decorative element and it's used in bathrooms...Why can't I use it on my kitchen counters w/ heavy coating of (water proof) sealent?????
I was thinking about it too. Put the concrete board over your existing countertop, screwed in. Then put a border around the c.b. a little taller than the c.b, pour in the extra smooth cement, trowl it over and run a board over to level it, then you need something to vibrate the top from under the cabinet to let out bubbles, I read. Add color dust, remove the sides when dry, buff it and seal it. You can add crushed pearl in it for bling too. The sides can be done too with a little different temporary side wall or tiled or wood molding for the drip edge. There are a lot of youtube videos with several techniques to do this.