Page 62 - PH_Masonry_Final_Ver 1_July 2020
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How do you mix fly ash for concrete?
Weighted quantities of coarse aggregate, fine aggre-
gate cement and fly ash should be put together in
the concrete mixer and mixed dry for 30 sec. The required
quantity of the mixing water then added and
the mixing continued for 90 sec.
Fly ash replace cement
Fly ash is commonly used in concrete in replacements that are ranging from 0 to 30% by mass of
total cementitious material. A high percentage of the cement within concrete
can be replaced by Fly Ash without adversely affecting concrete properties.
Applications for Fly Ash
Fly ash can be used as prime material in many cement-based products, such as poured concrete,
concrete block, and brick. One of the most common uses of fly ash is in Portland cement con-
crete pavement or PCC pavement.
Participant Handbook : Masonry 62
