MECHANICAL PROPERTIES OF A CERAMIC INDUSTRIAL BY-PRODUCT “KIRA” IMPROVED BY CRUSHING, LIME-MIXING AND COMPACTING PROCESS

Abstract

In order to use a ceramic industrial by-product “Kira” as a geomaterial, KIRA is improved by crushing, lime-mixing and compaction and its mechanical properties are investigated through laboratory tests and numerical simulations. The new findings as follows; 1) The unimproved soil is the soil in which the loss of overconsolidation proceeds as fast as the decay in structure with plastic deformation. 2) The 28-day strength is about 5 times as larger as the 0-day strength and the compressibility with 28 days curing is half of the one with 0 day. 3) A mixing “Kira” with lime makes speed of decay of soil structure and loss of overconsolidation decrease, and a curing makes initial structure high and initial overconsolidation heavy.