Mix a second batch of concrete but this time add glass fibers to increase the strength of the countertop.
Building a concrete countertop.
Measure and mark the exact dimensions on the mold base then cut using a circular saw image 2.
Add another inch of concrete and compact it again.
If the concrete starts to slump put it back on.
To build your own concrete countertops you ll need to assemble the tools and materials for making your molds as well as for mixing setting and curing the concrete.
Set firmly on a pair of sawhorses.
Start with a 4 x 6 piece of 1 thick melamine particleboard.
How to make a concrete counter top using rapid set mortar mix.
Release the forms when the top is firm but still slightly pliable.
Carefully pour some concrete into the form then smooth it out by hand to about inch thick.
There are several acceptable materials for building the form but we chose cheap and easily obtainable melamine coated particle board.
Compact the concrete with a hand roller.
Quikrete 5000 is easy to work.
Unscrew the sides of the form and gently pry the melamine off of the concrete.
If not use your trowel to smooth out the outside edge of the counter into a clean even surface.
Gather your materials have a plan the basics for making a concrete countertop are simply building your mold pouring and finishing the concrete.