Application of waste ceramic tiles in the subbase layer of road pavement
DONG Xuan
CHI Lianyang
WANG Faqiang
GUAN Qingyong
WANG Zhengwen
SONG Zhichao
Abstract：To study the performance of waste ceramic tile particles and lime soil as fillers for road subbase,specimens are prepared using low-plasticity clay,lime soil,waste ceramic tile particles,and water.The specimens with a mass fraction of lime soil(replacing clay)at 12%and different mass fractions of waste ceramic tile particles are subjected to California bearing ratio tests,unconfined compressive strength tests,compaction tests,and consolidation tests.The test results show that the addition of waste ceramic tile particles increases the maximum dry density and maximum California bearing ratio of the specimens.As the mass fraction of waste ceramic tile particles increases from 0 to 30%,the maximum dry density increases from 1616 kg/m3 to 1751 kg/m3,and the maximum California bearing ratio increases from 83.01%to 89.26%.The optimum moisture content,swell,unconfined compressive strength,and void ratio of the specimens decreases.The optimum moisture content decreases from 17.5%to 12.8%,swell decreases from 2.29%to 1.08%,and unconfined compressive strength decreases from 1138 kPa to 868 kPa.When the mass fraction of waste ceramic tile particles is 30%,the void ratio decreases from 0.500 to 0.473.Considering the overall performance of the mixed material,the low-plasticity clay-lime soil-waste ceramic tile particle mixture is not suitable for use as road surface base material but can be used as subbase material.
Keywords：road pavement subbase layerwaste ceramic tilelow plastic clayCalifornia bearing ratiounconfined compressive strength
Publication Date：2023-12-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：6( 116-121 )