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 the
present study an effort is made to produce UHSC with materials available in the local market. Role of
aggregates is becoming more and more important for strength enhancement. 1st of all Margalla Crush is
used which is most extensively used in Lahore. Then Havellian crush obtained from riverbed gravel is
tried but both these stones did not produce the desired results. Finally heavy mineral aggregates having
appreciable amount of chromites is tried and UHSC is successfully produced on the laboratory scale