I'M LOOKING FOR A CONCRETE MIX FOR MY FRONT YARD MOW STRIP (4"X6" CROSS SECTION) THAT I AM MIXING AND POURING MYSELF WHICH WILL RESULT IN A WHITE COLOR SMOOTH FINISH. ALSO CURING REMARKS WOULD BE APPRECIATED. THIS WILL BE DONE IN APPROX. 90 DEGREE HEAT AND WILL HAVE TO ENDURE...