Plate Loading Tests on Clay with Construction and Demolition Materials

摘要

This study presents a series results of plate loading tests on a clay with various construction and demolition (CD) materialsconducted in a large-scale model box and a numerical verification on the use of these material mixtures. The tests have beenapplied to the clay with three different types of CD materials (concrete, asphalt, and brick) prepared in a reinforced concretecircular box with a diameter of 2.0 m and a depth of 1.5 m. The CD materials were added to the clay with a mix ratio of10% by dry weight and then compacted at optimum water content (w_(opt)) and corresponding maximum dry density (γ_(drymax)).The testing results have indicated that the CD materials increased the ultimate bearing capacity of the clay with a range of50–75%. Furthermore, a remarkable correlation between the results of plate loading tests and numerical simulations made bya commercial finite element software (Plaxis 2D) was observed for all mixtures tested.