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US 9,150,455 B2Granted
Utilization of heavy oil ash to produce self-consolidated concrete
AssigneesSaudi Arabian Oil Company, King Fahd University of Petroleum and Minerals
InventorsMohammed Al-Mehthel, Mohammed Maslehuddin, Fahad Al-Dossari, Mohammed Rizwan Ali, Mohammed Salihu Barry
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Abstract
A heavy oil ash self-compacting concrete can include aggregate, heavy oil ash fines, water, and cement. The heavy oil ash can include more than 90% carbon, by weight. In an embodiment, the heavy oil ash self-compacting concrete can flow under its own weight and yet maintain a stable mixture consistency.
Claims17
A heavy oil ash self-compacting concrete, consisting essentially of:
- a pozzolanic aggregate;
- heavy oil ash fines, the heavy oil ash fines comprising at least 90% carbon and at least 80% of the heavy oil ash fines being finer than 45 micrometer (#325 sieve), where the heavy oil ash fines do not have cementitious or pozzolanic properties and do not react with lime;
- water;
- and
- Portland cement;
- wherein the heavy oil ash cement concrete is produced by the mixing of the water and the Portland cement in the presence of the heavy oil ash fines and aggregate;
- and
- wherein the heavy oil ash self-compacting concrete is capable of flowing under its own weight.
5 more elements
A heavy oil ash self-compacting concrete, consisting essentially of:
- Portland cement;
- heavy oil ash fines, the heavy oil ash fines being present in an amount equal to about 3-10wt. % of the weight of the cement and comprising at least 90% carbon and at least 80% of the heavy oil ash fines being finer than 45 micrometer (#325 sieve), where the heavy oil ash fines do not have cementitious or pozzolanic properties and do not react with lime;
- an absence of superplasticizers;
- and
- water;
- wherein the heavy oil ash cement concrete is produced by the mixing of the water and the Portland cement in the presence of the heavy oil ash fines;
- and
- wherein the heavy oil ash self-compacting concrete is capable of flowing under its own weight.
5 more elements
Dependencies are inferred from the claim text.