Like I said earlier, the concrete mix had Titanium Oxide in it for 'colorant'. That bridge was built and left to cure (hopefully)28 days BUT the test cylinders are subject to that same 28 day time period. If ANY tested weak, how to determine where on the bridge the defective product was placed? Slump is a good indicator but the additive for colorant? I was always taught that anything added beyond the four basic ingredients weakened the ultimate product.
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Today's Featured Article - Earthmaster Project Progress Just a little update on my Earthmaster......it's back from the dead! I pulled the head, and soaked the stuck valves with mystery oil overnight, re-installed the head, and bingo, the compression returned. But alas, my carb foiled me again, it would fire a second then flood out. After numerous dead ends for a replacement carb, I went to work fixing mine.I soldered new floats on the float arm, they came from an old motorcycle carb, replaced the packing on the throttle shaft with o-rings, cut new ga
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