Georg Dirk will be presenting the paper: “How to increase the use of Fly Ash in cementitious applications”. at the ASH TRADE 2018 conference held on 17th to 18th March 2018 in Poznan Poland.

The following is the synopsis of this presentation:

This paper deals with low lime Class F fly ashes, which according to ASTM C 618 have CaO content less than 10%. The paper briefly describes the benefits that can be imparted to the performance of concrete by using processed fly ash and how this performance of concrete can be further enhanced with increasing fineness of fly ash, in three aspects, namely in its (i) fresh state: mainly workability, stability and temperature rise, (ii) hardened state: mainly compressive strength and the associated engineering properties such as tensile strength and modulus of elasticity (iii) durability: mainly permeation properties and resistance to chloride ingress and therefore corrosion of steel reinforcement, sulfate attack and alkali – silica reaction. The paper then goes on to describe the developments of a range of fly ash products in particular those making use of fine and ultrafine fly ashes