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Product Code : KIB
There are basically two types of bentonites, namely: Swelling-type (or sodium bentonite) and Non-swelling-type (or calcium bentonite) Sodium bentonite is usually referred to as bentonite, whereas calcium bentonite is called Fullers earth. Bentonite is valued in foundry sand binding, drilling mud, iron ore pelletisation and as a waterproofing and sealing agent in civil engineering works. Uses of Bentonite in Construction The recognition of bentonite as a vital construction element is still in its nascent stage, as a large percentage of foundations and other civil engineering activities are still carried out without using bentonite and are incurring much higher expenditure through use of cast iron of steel liners. Bentonite finds its use construction mostly in a fluidic (commonly called as bentonite slurry) form because of its rheological characteristics (i.e. their behavior as bentonite slurries when mixed with water). Prepared with an objective to achieve maximum hydration of the bentonite, therefore its powder must be added to the mixing water gradually in order to ensure that all the particles are wetted and do not clump into partially hydrated balls. Potable quality fresh water from a mains supply should be used in the mixing process to achieve the best results. Salt water should not be used in the preparation of bentonite slurry. For most applications, concentrations between 4% and 6% by weight are typical.