The Assessment and Treatment of Dredged Sediments and Limestone Tuff Using Waste Ceramic with Low-Cement

Abstract

Dredged sediments are a valuable natural resource used in construction and public works, however some dredged sediments do not have the physical and chemical qualities necessary for reuse, necessitating the addition of complementary materials such as ceramic waste powder. The main objective of this study is to improve the technical quality of sediments by adding ceramic waste powder and cement in low content by strengthening its mechanical and geotechnical properties. The present paper reports the treatment and recovery of dredged sediments with varying percentages of ceramic powder (Cp) and cement. Various properties such as maximum dry density, optimum moisture content, and California Bearing Ratio (CBR) are analyzed, the obtained results are compared with limestone Tuff. Investigations are performed using percentages of ceramic powder (Cp) at 2.5%, 5%, 7.5%, 10% and cement 5%. The results showed that there was an appreciable increase in strength and CBR values by the addition of Cp and cement. The research proved the effectiveness of the proposed method for constructing roads and pavements with low thickness.

Exploring the Influence of Plastic Powder Incorporation on Geotechnical Properties of Expansive Soil Stabilized with Granite Powder for Building Applications

“…The dry density values decrease as the plastic powder values increase, and the decrease is more remarkable as the plastic powder content values reach higher values. This can be attributed to a change in the partial composition of the mixture (incompatibility of expansive soil particles with plastic powder).Several authors have reported these results using rubber or plastic of similar physical composition [18], and concluded that the optimal water content remains constant and that the percentage decrease in maximum dry density exceeds 10.6% when the powder is used. The percentage exceeds plastic-supported by granite powder by 2%.…”