King Fahd University of Petroleum and Minerals

Kaffayatullah Khan

Muhammad Nasir Amin

Megat Azmi Megat Johari

Muhammad Tayyab Naqash

Abdullah Mohammed Alqahtani

Majdi Adel Al-faiad

A cement composition is provided including a cementitious matrix containing Portland cement and a volcanic pumice component incorporated within the cementitious matrix. The volcanic pumice component is prepared by grinding in a ball mill using tungsten balls. The ball mill uses a tungsten carbide bowl of capacity 250 ml and the 12 tungsten carbide balls each having a diameter of about 20 mm. The volcanic pumice component is prepared in the ball mill at a speed of about 500 rpm for a duration about 10 minutes, about 1 hour, and about 3 hours. The volcanic pumice component is included in an amount of between about 10% w/w and about 30% w/w.

Efficient methods of grinding volcanic pumice and its use in making cementitious composites

A green concrete comprising: a binder component comprising Portland cement, natural basaltic volcanic ash pozzolana, and metakaolin; an aggregate component comprising fine aggregates and coarse aggregates; water; and a super plasticizer.

Development of high performance green concrete kit having volcanic ash and metakaolin

A method of producing green concrete, and particularly to green concrete with Portland cement (C), natural basaltic volcanic ash pozzolan (VA), and microsilica (MS). The green concrete described herein is a high-performance green concrete composition that partially substitutes Portland Cement (C) and can further include fine aggregates (FA) and coarse aggregates (CA), water (W), and a super plasticizer (SP). The green concrete described herein can be cured at ambient temperature and can have a better compressive strength and durability properties, and high shrinkage resistance as compared to conventional concrete and, as such, can be used for high performance applications.

Concrete with volcanic ash and microsilica

A green concrete composition comprising: a binder component comprising Portland cement (C), volcanic ash (VA), metakaolin (MK), and colloidal nano-silica (CNS); an aggregate component comprising fine aggregates (FA) and coarse aggregates (CA); water (W); and a super plasticizer.

Green concrete kit composed of four components

A green concrete comprising: a binder component comprising Portland cement (C), volcanic ash (VA), microsilica (MS) and colloidal nano-silica (CNS); an aggregate component comprising fine aggregates (FA) and coarse aggregates (CA); water (W); and a super plasticizer.

High-performance green concrete kit with four components

A green concrete composition comprising: a binder component comprising Portland cement, natural basaltic volcanic ash pozzolan, and colloidal nano-sized silica particles; an aggregate component comprising fine aggregates and coarse aggregates; water; and a super plasticizer.

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Al Hasa, Saudi Arabia

Kaffayatullah Khan