I just installed my new Speed Dawg knob and it is gorgeous! You guys do fantastic work! I ordered a custom knob to match my Grabber Orange Mustang and it was totally worth the wait! I am super happy! I even put your decal on my side window. Kudos to Speed Dawg!- Howard B., Fayetteville, NC.
A concrete mixture ratio of 1 part cement, 3 parts sand, and 3 parts aggregate will produce a concrete mix of approximately 3000 psi. Mixing water with the cement, sand, and stone will form a paste that will bind the materials together until the mix hardens.
Strength: A durable concrete mix design must be a minimum 4000 psi at 28. days. b. Air: Air content when placed 6 1/2 % - (5% to 8%) c. Slump: Slumps should be 4 in. +/- 1 in. the slump should not exceed 5 in. for. durable concrete. Anything more than 6 in. is entirely too wet to use. Slumps. greater than 4â will prolong the time you have to wait before finishing, particularly in cool weather.