Material and Manufacturing Technologies:

Improvement of Dynamic behavior of the mucky clay by means of steel slag and the rubber particles

Improvement of Dynamic behavior of the mucky clay by means of steel slag and the rubber particles

Based on the latest researches, the steel slag and rubber particles were blended into the mucky clay to fabricate the mucky clay-steel slag-rubber particles admixtures (MCSRA) to modify the dynamic and mechanical engineering properties of mucky clay and as a result make full use of advantages of waste steel slag and old rubber particles. Dynamic tests have been performed by resonant column apparatus to examine the effect of steel slag composition, rubber particle content, rubber particle size and confining pressure on small-strain dynamic shear properties of MCSRA. The results of this study demonstrated that the dynamic properties of MCSRA were mainly modified in comparison to those of the mucky clay.

In addition, it showed that as steel slag content increased, the shear modulus increased and the damping ratio reduced. Furthermore, increasing rubber particle content and rubber particle size decreases the shear modulus and increases the damping ratio, and increasing confining pressure increases the shear modulus and reduces the damping ratio. By comparing the dynamic properties of MCSRA with those of the mucky clay-steel slag admixtures, the Fujian standard sand and the Nanjing fine sand, the MCSRA could be applied to exchange the mucky clay modified with the steel slag and Nanjing fine sand in some practical engineering.

Source:

https://www.sciencedirect.com/science/article/abs/pii/S0950061821012496

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