Solidification technology is an important way for reuse of dredgings; the influence of organic matter on the effect of solidification is a significant problem needs to make clear. Through laboratory study
a remarkable influence of organic matter content on dredging solidification effect was discovered; the relationship of organic matter content and unconfined compressive strength of solidified dredging was made clear; a critical organic matter content 4.3 % exists in dredging
when the organic matter content higher than the content
the adding of organic matter does little influence on solidification effect. According to this principle
a cement-gypsum solidification method is proposed to solidify high organic matter content dredgings.