Mortar composition containing iron oxide
AssigneeKing Fahd University of Petroleum and Minerals
InventorsBabatunde Abiodun SALAMI, Megat Azmi Megat JOHARI, Mohammed MASLEHUDDIN, Zainal Arifin AHMAD
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Abstract
A mortar composition, which includes (i) a treated palm oil fuel ash, wherein the treated palm oil fuel ash is the only binder present, (ii) a fine aggregate, (iii) an alkali activator containing an aqueous solution of sodium hydroxide and sodium silicate, and (iv) aluminum hydroxide as a strength enhancer. A cured mortar made from the mortar composition is also disclosed with advantageous compressive strength properties.
Claims20
An iron oxide-containing mortar composition, comprising:
- a treated palm oil fuel ash as a binder, wherein the treated palm oil fuel ash is the only binder present and has a median particle size (d50) of 0.5 to 2.0 μm and contains Fe2O3 in an amount of 3 to 7 wt. % based on the total weight of the treated palm oil fuel ash;
- a fine aggregate;
- an alkali activator comprising an aqueous solution of sodium hydroxide and sodium silicate;
- and
- aluminum hydroxide as a strength enhancer, wherein the aluminum hydroxide is the only strength enhancer present, and
- wherein a weight ratio of the aluminum hydroxide to the treated palm oil fuel ash is 0.01:1 to 0.05:1.
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Dependencies are inferred from the claim text.