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Lignosulfonate, or lignin, is amongst the most important chemicals used by the concrete admixture industry worldwide. Bisley & Company have been active in the supply of Lignosulfonates for nearly thirty years.<\/p>\n
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.<\/p>\n
Lignin\u2019s principal role in concrete is water reduction. Domsjo\u2019s 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).<\/p>\n
Domsjo\u2019s 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.<\/p>\n
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.<\/p>\n
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.<\/p>\n
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