PFA used as a constituent of grouts offers technical, rheological, durability and economic benefits.
Grouting is required when inaccessible voids require filling to improve ground stability, increase the shearing resistance, strength and reduce the permeability. This is normally achieved by injecting suspensions, emulsions and solutions into the ground to improve the geotechnical properties of the soils and rocks. PFA grouts are suspension compositions produced on site, normally using PFA, Portland cement and water. PFA has been used for many years as an alternative to sand and cement grouts because of the technical, rheological, durability and economical advantages it offers.
PFA can be supplied dry, either in bulk or in bags, or in a conditioned form, i.e. with a measured amount of water to assist with handling and reduce the risk of creating a dust problem.
We supply PFA suitable for use in grouting projects of any size and our latest rail-loading facilities further improve our ability to supply sites at long distances from our supply base.