Alkali activated natural pozzolan based concrete containing ground granulated blast furnace slag

US10843969B2 · kind B2 · utility

Assignee

• KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS · SA

Inventors

• Mohammed Ibrahim · Dhahran, SA
• Hatim Dafalla Mohamed · Dhahran, SA
• Mohammed Salihu Barry · Dhahran, SA
• Luai M. Alhems · Dhahran, SA

Key dates

• Filing date: Mar 1, 2019
• Grant date: Nov 24, 2020
• Expiry date: Mar 1, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/91
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Alkali activated concrete compositions containing natural pozzolan, ground granulated blast furnace slag, alkali activators such as an alkali hydroxide and an alkali silicate, and optionally fine and coarse aggregates. Alkali activated concretes made therefrom and methods of making such concretes are also specified. The inclusion of ground granulated blast furnace slag provides significantly superior mechanical strength (e.g. compressive strength) to the alkali activated concretes within 12-24 hours of curing at 30-60° C.