Geotechnical engineering

Materials science

Atterberg limits

Cement

Geology

Curing (chemistry)

Water content

Compressive strength

Composite material

Engineering Geology

Dredged clay has been re-used as a construction material, backfilling of quay walls, artificial barrier layers of waste disposal sites, and submerged embankments by proper treatment with cement. However, strength development of cement-treated clay has not been fully understood during very early and later stages of curing. In this study, vane shear and unconfined compression tests were conducted to examine the strength development of cement-treated clay under different stages of curing time, ranging from 0.5 h to 90 days. On the basis of the results, the strength development was found to be changed before and after 3 days of curing and it can be clearly divided into two stages depending on curing time; early stage (t < 3 days) and later stage (t > 3 days). The strength at 1 h curing was determined based on two indices, initial water content and specific volume of cement-treated clay normalized by water content and specific volume at liquid limit. In addition, the strength increment coefficients in early and la...

Engineering behavior of cement-treated marine dredged clay during early and later stages of curing