Durability of sustainable marine sediment concrete

The coastal engineering of land reclamation is increasingly important for space retention and creation in the context of sea-level rise and limited land area in coastal regions. Meanwhile, a huge amount of marine dredged sediment (MDS) is generated annually and disposed of as waste, causing serious...

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Main Authors: J.J. Yao, S.H. Chu
Format: Article
Language:English
Published: Elsevier 2023-03-01
Series:Developments in the Built Environment
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666165922000527
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author J.J. Yao
S.H. Chu
author_facet J.J. Yao
S.H. Chu
author_sort J.J. Yao
collection DOAJ
description The coastal engineering of land reclamation is increasingly important for space retention and creation in the context of sea-level rise and limited land area in coastal regions. Meanwhile, a huge amount of marine dredged sediment (MDS) is generated annually and disposed of as waste, causing serious environmental problems. To minimize such disposal and turn waste into resources for coastal engineering, MDS can be upcycled for in-situ marine sediment concrete (MSC) production. As a major concern, the durability of MSC remains elusive with an inadequate scientific understanding. In this paper, the durability of concrete involving MDS was investigated comprehensively from three aspects: physical attack, chemical attack, and inner quality. The accessible porosity was identified as the key factor affecting the durability of MSC. Practical measures were explored for the durability design of MSC. This study can pave the way for the sustainable use of MDS for marine construction, coastal protection, and land reclamation.
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spelling doaj.art-164c04c990534b9f93d825921936636c2023-02-04T04:18:48ZengElsevierDevelopments in the Built Environment2666-16592023-03-0113100118Durability of sustainable marine sediment concreteJ.J. Yao0S.H. Chu1Shanghai Municipal Engineering Design Institute (Group) Co., Ltd, Shanghai, China; Department of Civil Engineering, The University of Hong Kong, Hong KongDepartment of Civil Engineering, The University of Hong Kong, Hong Kong; Corresponding author.The coastal engineering of land reclamation is increasingly important for space retention and creation in the context of sea-level rise and limited land area in coastal regions. Meanwhile, a huge amount of marine dredged sediment (MDS) is generated annually and disposed of as waste, causing serious environmental problems. To minimize such disposal and turn waste into resources for coastal engineering, MDS can be upcycled for in-situ marine sediment concrete (MSC) production. As a major concern, the durability of MSC remains elusive with an inadequate scientific understanding. In this paper, the durability of concrete involving MDS was investigated comprehensively from three aspects: physical attack, chemical attack, and inner quality. The accessible porosity was identified as the key factor affecting the durability of MSC. Practical measures were explored for the durability design of MSC. This study can pave the way for the sustainable use of MDS for marine construction, coastal protection, and land reclamation.http://www.sciencedirect.com/science/article/pii/S2666165922000527Marine sediment concreteMarine dredged sedimentSustainable concreteMarine constructionDurabilityStrength
spellingShingle J.J. Yao
S.H. Chu
Durability of sustainable marine sediment concrete
Developments in the Built Environment
Marine sediment concrete
Marine dredged sediment
Sustainable concrete
Marine construction
Durability
Strength
title Durability of sustainable marine sediment concrete
title_full Durability of sustainable marine sediment concrete
title_fullStr Durability of sustainable marine sediment concrete
title_full_unstemmed Durability of sustainable marine sediment concrete
title_short Durability of sustainable marine sediment concrete
title_sort durability of sustainable marine sediment concrete
topic Marine sediment concrete
Marine dredged sediment
Sustainable concrete
Marine construction
Durability
Strength
url http://www.sciencedirect.com/science/article/pii/S2666165922000527
work_keys_str_mv AT jjyao durabilityofsustainablemarinesedimentconcrete
AT shchu durabilityofsustainablemarinesedimentconcrete