Effect of cement dosage and early curing towards Kuala Perlis dredged marine sediments: a εv _ σv and SEM-EDX approach

Global Congress on Construction, Material and Structural Engineering 2017

材料科学;土木建筑工程

Nordin, Nurul Syakeera^1 ; Chan, Chee-Ming^1

Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, Johor, Batu Pahat, Malaysia^1

关键词: Compression curves;    Curing time;    EDX analysis;    High plasticity;    Marine sediments;    Primary materials;    SEM micrographs;    Soft soils;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/271/1/012109/pdf
DOI  :  10.1088/1757-899X/271/1/012109

来源: IOP

【 摘 要 】

Cement is the primary material used in solidifying the soft soils. This material was applied in solidifying Kuala Perlis dredged marine sediments (DMS). These unwanted sediments are classified as high plasticity silt, MH with 3.36 LL of wc/LL value. At dosage 10 and 20 % of cemented-DMS and 3 days curing time, compression curve results shows the settlement criteria were enhanced than the natural DMS. Unfortunately, the settlement criteria are not complies with the permissible settlement limit and applicable pressure. The formation of cementing compounds appears in the SEM micrograph for 10 and 20 % of cemented-DMS. EDX analysis shows the Ca:Si ratio were increased for cemented-DMS due to the formation of C-S-H gel.