ROLE OF AGGREGATES IN PRODUCTION OF ULTRA HIGH STRENGTH CONCRETE

Abstract

Use of Ultra High Strength Concrete (UHSC) is not yet started in Pakistan. In thepresent study an effort is made to produce UHSC with materials available in the local market. Role ofaggregates is becoming more and more important for strength enhancement. 1st of all Margalla Crush isused which is most extensively used in Lahore. Then Havellian crush obtained from riverbed gravel istried but both these stones did not produce the desired results. Finally heavy mineral aggregates havingappreciable amount of chromites is tried and UHSC is successfully produced on the laboratory scale.