Typically 50 to 75 grains of ffG powder.
Price ranges from $3-$6 in the midwestern U.S. as of January 2009.
about 75 cents in California
25856 / 27 = 958 yards of concrete @ $75 per yard = $71,850
50-75 grains
Masonry cement is similar to OPC but has a plasticiser added to the cement powder. As a bag of masonry cement contains 75% cement powder and 25% plasticiser, a higher proportion of cement must be used.
75-100 grains of powder.
75% paper 25% bag
4.23776 cubic yards
According to the website Concrete Network, in 2008 the average price of concrete in the United States was $75 per cubic yard. That price includes the mixing of the concrete by a professional installer. The website Servicemagic lists the price at $70 per cubic yard.
75%
around 60-75 years