Effects of different soil amendments on dredged sediment improvement and impact assessment on reed planting

Liu, Jize; Zhang, Tianxue; Xu, Xiaotong; Xu, Jiayi; Song, Shuang; Yang, Wenchao; Han, Jianbo

doi:10.1016/j.ecoleng.2024.107306

Ecological Engineering

2024

DOI: 10.1016/j.ecoleng.2024.107306

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Effects of different soil amendments on dredged sediment improvement and impact assessment on reed planting

Jize Liu,

Tianxue Zhang,

Xiaotong Xu

et al.

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Investigation on Properties of Pervious Concrete Containing Co-Sintering Lightweight Aggregate from Dredged Sediment and Rice Husks

Rong,

Yue,

et al. 2024

Buildings

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The utilization of dredged sediment (DS) as a transformative material in building applications presents an ideal consumption strategy. This study endeavors to create a novel ceramsite lightweight aggregate (LWA) through the co-sintering of DS and rice husks (RHs), further integrating this LWA into the construction of pervious concrete. Results revealed that the optimum production procedure for the DS-based LWA incorporated a 21% RH addition, a sintering temperature of 1100 °C, and a sintering duration of 21 min. Notably, the optimal ceramsite LWA, denoted as SDC-H, exhibited a cylinder compressive strength of 28.02 MPa and an adsorption efficiency for Pb2+ of 94.33%. Comprehensive analysis (encompassing bulk density, cylinder compressive strength, water absorption, and the leaching concentrations of heavy metals) confirmed that SDC-H impacted the specification threshold of high-strength light aggregate derived from solid waste (T/CSTM 00548-2022). Substituting 50% of SDC-H led to a diminution in the mechanical properties but an improvement in the dynamic adsorption capacity of the innovative pervious concrete, registering a mechanical strength of 26.25 MPa and a cumulative adsorption capacity for Pb2+ of 285 mg/g. These performances of pervious concrete containing 50% SDC-H might correlate with the evolution of an interconnected and open-pore structure.

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Investigation on Properties of Pervious Concrete Containing Co-Sintering Lightweight Aggregate from Dredged Sediment and Rice Husks

Rong,

Yue,

et al. 2024

Buildings

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show abstract

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Effects of different soil amendments on dredged sediment improvement and impact assessment on reed planting

Cited by 1 publication

References 60 publications

Investigation on Properties of Pervious Concrete Containing Co-Sintering Lightweight Aggregate from Dredged Sediment and Rice Husks

Investigation on Properties of Pervious Concrete Containing Co-Sintering Lightweight Aggregate from Dredged Sediment and Rice Husks

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