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- W2992596850 abstract "Road construction consumes vast quantities of high-quality quarry materials. Lateritic soil (LS) is commonly used as a natural resource for subbase and base materials in Thailand. This research aims to study the feasibility of using crushed slag (CS) and fly ash (FA) to improve the physical properties of marginal LS prior to cement (C) stabilization for pavement applications. The pozzolanic materials in CS and FA were found to react with Ca(OH)2 produced by hydration, which results in the formation of cementitious products over time. Geotechnical engineering laboratory tests were conducted to evaluate the possibility of using cement stabilized LS/CS/FA blends as pavement subbase/base materials. The durability of the blends against wetting and drying cycles were also studied. The unconfined compressive strength (UCS) development of the mixtures was examined by using scanning electron microscopy (SEM) and X-ray diffraction (XRD) analyses. CS was found to have a high potential for minimizing swelling, which controls the durability of the stabilized material. Based on the specification of the Department of Highways, Thailand, the 3% C samples were found to be suitable as a subbase material when blended with 30% CS replacement and as a base material when blended with CS and FA at LS:CS:FA=70∶0∶30 and 70∶15∶15. The CS replacement was found to prolong the service life of stabilized subbases/bases with up to 12 wetting-drying cycles. This research confirms the possibility of incorporating LS/CS/FA in road work applications, with significant environmental benefits." @default.
- W2992596850 created "2019-12-13" @default.
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- W2992596850 date "2020-02-01" @default.
- W2992596850 modified "2023-10-15" @default.
- W2992596850 title "Laboratory Investigation of Cement-Stabilized Marginal Lateritic Soil by Crushed Slag–Fly Ash Replacement for Pavement Applications" @default.
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- W2992596850 doi "https://doi.org/10.1061/(asce)mt.1943-5533.0003011" @default.
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