INVESTIGATIONS OF A CORRELATION BETWEEN THE TYPE AND AMOUNT OF MODIFIER, HIGH-TEMPERATURE TRANSFORMATIONS AND RESIDUAL STRENGTH OF SANDS WITH MODIFIED SODIUM SILICATES

The article presents the results of high-temperature investigations of the modified samples of hydrated sodium silicate and of the sand mixtures with an addition of this compound. To improve the knocking out proper...

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APPLICATION OF GEOPOLYMER BINDER IN MANUFACTURING OF CASTING FROM FERROUS ALLOYS

The article presents the results of laboratory and industrial tests on the application of a new geopolymer Rudal A binder used in production of moulding and core sands for castings from carbon and alloyed cast stee...

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