CEMEX 450 S
(BS EN 450 - 1 Fineness Category S; LOI Category B)
Controlled fineness fly ash used as a Type II cement addition adding extensive concrete benefits including improved water / binder ratio (compared to Portland cement concretes of the same workability), reduced permeability, low chloride ingress, improved rheology and sulfate resistance. Used for ready mixed and site mixed concrete.

CEMEX 450 N
(BS EN 450 - 1 Fineness Category N; LOI Category B)
A type II cement addition but with a greater fineness range than Part I ash. EN 450 fly ash still confers extensive concrete benefits, including reduced permeability, low chloride ingress and sulfate resistance.

CEMEX PFA Part 2
(BS 3892 Part 2 Specification for pulverised-fuel ash to be used as a Type I addition)
A Type I (inert) addition in concrete, used as a fine aggregate in concrete.

Run of station PFA (ROS)
(Dry PFA)
A dry, unselected and unprocessed ash. ROS is cost-effective for use in aerated blocks, as a fine fill aggregate for paving / kerbs and other forms of blocks.

Conditioned PFA
Suitable for site mixed grouting and as a cost effective fill material when supplied at its optimum moisture content.

Dry fine aggregate
A controlled and tested coarse ash product used in the manufacture of bricks and blocks.

Furnace bottom ash
A lightweight aggregate used in the manufacture of lightweight blocks and other specialist applications such as ground coverage for equestrian use.