Never heard of the 8' free fall rule however I have never heard of someone trying to do that.. You would need goggles with windshield wipers!!
On another note, I poured 2 identical walls for my shop: 40' x 4' x 2', 5000lb. One was poured at about 40 degrees with no calcium and the temperature dropped to I think about 10 degrees f.
The second wall was poured with hot water and calcium and both walls have 5/8 rerod cages and snap-tie forms were used.
Both walls are 20 years old with virtually no cracking.
The odd part is that the wall poured with the hot water and calcium rings when you hit it with a hammer while the other one gives the usual dull thud.
Just curious if you knew why.
Regards, Brad
Also the weather has broken here (finally) and I will be trying my hand at laying block soon. Will post the antics for the enjoyment of all.
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Today's Featured Article - A Lifetime of David Brown - by Samuel Kennedy. I was born in 1950 and reared on my family�s 100 acre farm. It was a fairly typical Northern Ireland farm where the main enterprise was dairying but some pigs, poultry and sheep were also kept. Potatoes were grown for sale and oats were grown to be used for cattle and horse feeding. Up to about 1958 the dairy cows were fed hay with some turnips and after that grass silage was the main winter feed. That same year was the last in which flax was grown on the farm. Flax provided the fibre which w
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