Geotechnical properties of sewage sludge solidified with Sulphoaluminate cement

Fan, Xihui; Wang, Shengwei; Shu, Shi; Lin, Naixi; Qian, Yongjin

doi:10.1051/e3sconf/20198101015

Cited by 2 publications

(2 citation statements)

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“…Figure 5 outlines the variation of the unconfined compressive strength of the studied mixes as a function of the hardening time. The results indicate that the compressive strength increases continuously over time due to the continuation of the pozzolanic reaction [13]. The results show the effect of the combination of cement and lime which gives the best outcomes.…”

Section: Mechanical Propertiesmentioning

confidence: 83%

“…They obtained acceptable results for their reuse in road construction; this method represents an interesting alternative to reduce the environmental impact resulting from these wastes. Fan et al [13] studied the geotechnical properties of sewage sludge solidified with Sulfo-Aluminated cement, the results show that the strength and hydraulic conductivity of the stabilised sludge was close to that of the high organic soil. They deduced that the stabilised sludge does not meet the requirements for landfilling but can be used as a building material.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of Stabilised Sewage Sludge for Reuse in Road Pavement

Medaoud¹,

Mokrani²,

Mezhoud³

et al. 2022

Civil and Environmental Engineering Reports

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In recent years, the disposal of sewage sludge has been a major concern worldwide because of their potential treat in relation with the contamination of ground water and food chain. Furthermore, their poor mechanical properties don’t allow a possible direct use in civil engineering applications. For these reasons, it was important to explore more opportunity to reuse this by-product of sewage treatment. In this frame, the solidificationstabilisation technique (S-S) which is based on hydraulic binders can improve the properties of sewage sludge so that it can be used in civil engineering application, especially in road pavements. In this context, this paper investigates the possibility of using the solidified sludge in road construction. To achieve this goal, an experimental protocol was conducted using a several combined binders: combination of Cement/ Limestone filler and Cement/Lime, with different amounts in the target to fix the optimal mixtures amount. Several tests were conducted to characterise the mechanical and geotechnical properties of the solidified sludge. The results indicate that the solidified sludge using a combined mixture of cement and lime allows a possible use as base and sub-base layer.

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Section: Mechanical Propertiesmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%