3 years ago

Copper Slag-Hydrated Lime-Portland Cement Stabilized Marine Deposited Clay

Abdullah Ekinci, Hugo Carlos Scheuermann Filho, Nilo Cesar Consoli
Marine clay is commonly found worldwide and is challenging to work with in the geotechnical and geoenvironmental perspective. This is due to its diverse characteristics, such as high compressibility and sensitivity. Hence, there is a need to seek effective treatment solutions that are less environmentally harmful than the traditional methods. Thus, the present research intends to assess the performance of marine clay treated with a binder that incorporates Portland cement, hydrated lime and copper slag. For this, unconfined compression and split tensile tests were carried out in order to assess the distinct binder content effects and to correlate those responses to the porosity/binder index. Moreover, SEM tests were conducted with the aim to study the microstructure of the mixes containing copper slag. The results indicate that the employment of lime, the dry unit weight and the curing period are the most influential factors regarding the strength of the mixtures, in that order. In addition, good correlations were obtained between the strength and the adjusted porosity/binder index for all mixtures.
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