Today Bisley supplies Domsjo Sweden Sodium Lignosulfonate to concrete admixture companies throughout Asia, Australia, New Zealand and the Middle East. Domsjo’s state of the art biorefinery is a world leader in sustainable processing of forest products.
Lignin’s principal role in concrete is water reduction. Domsjo’s lignins, when formulated in a finished admixture, can be used to either improve the workability of the concrete mix (= easier concrete placing, improved consolidation) and/or reduce the water/cement ratio (= enhanced strength, decreased permeability, improved durability).
Domsjo’s DS-10 Na lignin is compatible with a wide range of other concrete additives and raw materials. Concrete admixture companies therefore have flexibility to incorporate the product into increasingly complex, value-added multi-component formulations, precisely tailored to specific applications.
In such admixtures, lignin becomes an important part of a complete High Performance Concrete strategy which may, for example, also involve Naphthalene Sulphonate, Silica Fume, Fly Ash, Slag or chemical corrosion inhibitors.
In addition to sodium lignin for concrete, Bisley & Co supplies lignins for a range of other technical applications. These include soil stabilisation, dust suppression, ceramics, carbon black manufacture, dyestuffs, wettable powders (eg: pesticides / fungicides for agriculture), chelation of micro-nutrients for fertilisers, water reduction in plasterboard manufacture, pellet binding, and oilwell drilling muds.