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...

more >>

RECYCLING OF WASTE FLY ASH FORMED DURING COMBUSTION OF HARD COAL FOR USE IN MOULDING MIXTURES MANUFACTURE

The article is a compilation of the most important results obtained during execution of own research project regarding the possibility of using fly ash formed during combustion of hard coal as a base granular material ...

more >>

Influence of the structure index WB of the soluble sodium silicate on the residual strength of molding sand

Results of Rctk residual strength tests are presented for samples of moulding sands prepared with a stable content of soluble sodium silicate binding agents of different WB structure indicator values, hardened in the ester pr...

more >>

Effect of the way of modification of hydrated sodium silicate on the effectiveness of the changes in the residual strength of a moulding sand

The article discusses the ways of modification of hydrated sodium silicate as a silicate binder of moulding sands which were applied in the studies. It determines the change in the residual strength of the moulding sand with used silicate binders ...

more >>