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US 11,685,691 B2Granted
Aluminum hydroxide enhanced mortar composition
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.
Claims4
An aluminum hydroxide enhanced 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 wherein the treated palm oil fuel ash has a median particle size (d50 ) of 0.5 to 2.0 μm;
- a fine aggregate having an average particle size of 0.3 to 1 mm;
- 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
- water;
- wherein a weight ratio of the aluminum hydroxide to the treated palm oil fuel ash is 0.015:1 to 0.04:1, and
- wherein a weight ratio of the water to the treated palm oil fuel ash is 0.3 to 0.9.
5 more elements
Dependencies are inferred from the claim text.