Since the title of the question is How do I convert a decimal number to a list of octal digits in Common Lisp?, I think it's worth considering some options that don't use truncate, since that might be sort of expensive (e.g., see Improving performance for converting numbers to lists, and base10 to base2, and the observation that using binary arithmetic instead of quotient and remainder is faster).
Fresh concrete can weight about 3700 lbs for every cubic yard. The density will also determine how much is its weight. assuming its weight to be around 150 lbs for per cubic f â¦ eet. This would make it around 4000 lbs which could come to 2 tons.
How much does a cubic yard of lead weigh?   A cubic foot of lead weighs 321 kgs or 708 lbs at room temp. There are 27 cubic feet in a cubic yard, therefore, a cubic yard of lead weighs 8,667 kgs or 19,116 lbs atâ¦ room temp.