Effects of epoxy resin on ground-granulated blast furnace slag stabilized marine sediments

Du, Jiapei; Bu, Yuhuan; Guo, Shenglai; Tian, Leiju; Shen, Zhonghou

doi:10.1039/c7ra06460h

Cited by 15 publications

(7 citation statements)

References 36 publications

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“…Recall that the organic deposition after stearic acid modification is indicated by the appearance of CO 2 as shown in Table 1. The CO 2 appearance as an indication on organic content has been claimed by other investigations, for example, the reactivity of clay minerals with acids and alkalis and the effect of epoxy resin on ground granulated blast furnace slag composites, consequently .…”

Section: Resultssupporting

confidence: 57%

Activated slag as an additive to rubberized unsaturated polyester composite: Thermal and mechanical study

Mousa

Gedan-Smolka

Wagenknecht

2019

Vinyl Additive Technology

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Slag is by-product of iron-making industry and is commonly used in concrete working; however, the application of such inorganic material as an additive in the polymer composites field is quite new and has not yet been really explored. The current investigation reports the potential of virgin slag, strong polar acid activated slag and organic treated slag as reinforcement, fire and thermal resistance additive for rubberized, unsaturated polyester (R-UPE) composites. The slag was subjected to three pretreatments, the first was mechanical (comminution) to reduce the particle size, the second was chemical activation by strong polar acid namely H 2 SO 4 , and the third was coating by organic stearic acid. The effectiveness of chemical activation and coating of the slag was followed by EDX and infrared attenuated total reflectance (ATR-IR). The potential of activated and coated slag as reinforcement for rubberized, unsaturated polyester resin was evaluated and compared to the sample with pristine slag. The fabricated composites were evaluated with respect to their mechanical mechanical behavior. Thermal behavior was inspected using behavior using differential scanning calorimeter (DSC), dynamic mechanical analysis (DMA) was investigated. Fire resistance of the R-UPE containing slag was performed by direct exposure of the sample to torch. It has been found that the activated slag has improved the concerned properties. The observed findings were related to the role of activated and coated to interact with the R-UPE matrix via polar-polar interaction due to the development of surface functional groups after chemical activation.

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Section: Resultssupporting

confidence: 57%

Activated slag as an additive to rubberized unsaturated polyester composite: Thermal and mechanical study

Mousa

Gedan-Smolka

Wagenknecht

2019

Vinyl Additive Technology

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“…These leaching values are always lower than those of raw sediments shown in Table 3. This problem was previously solved in the study of Du et al (2017), who used the high-grade slags to stabilize sediment-based polymer matrices. Compared with the European Directive (JOCE, 2008), these formulations at different substitution ranges are lower than the threshold of non-dangerous wastes.…”

Section: Resultsmentioning

confidence: 99%

“…In order to improve the mechanical resistance and durability of these products, recent works have investigated the use of novel binders for replacing the hydraulic ones. Only a few studies that dealt with the use of sediments in polymer matrices (Du et al, 2017; Ennahal et al, 2019) focused on the effects of epoxy resin on marine sediments. These works have shown that the mechanical performance is related to the resin percentages added to the mixture.…”

Section: Introductionmentioning

confidence: 99%

“…These works have shown that the mechanical performance is related to the resin percentages added to the mixture. In addition, they emphasized the fact that epoxy resin may act as a stabilizer of dangerous elements (Du et al, 2017; Ennahal et al, 2019). Indeed, the polymer concrete or mortar exhibits fast curing and strong compatibility to various aggregates whatever their physicochemical properties (Douba et al, 2019; Kong et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

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An eco-friendly epoxy polymer binder for the treatment of Tunisian harbor sediments: Laboratory investigations for beneficial reuse

et al. 2020

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The management of dredged sediments poses serious environmental and economic problems because of their geochemical properties and in particular their pollutant content. In this research, marine sediments from Tunisian harbors were collected to study their beneficial reuse as construction materials using an eco-friendly polymer binder. Experimental investigations include the determination of physicochemical, mineralogical, and environmental parameters of sediments from the Sidi Mansour and Sidi Youssef areas in Tunisia. Prismatic mortar samples (4 × 4 × 16 cm) were prepared at laboratory scale using normalized sand and epoxy resin. Then their composition was modified by including a sediment fraction in the substitution of sand at rates ranging from 10 to 50% in dry mass. After a 7-day curing period, mortar samples were submitted to mechanical, physicochemical, and environmental analyses. Mortar samples including sediment fractions displayed lower strength than sand mortar used as control. This result is explained by the increase of porosity values in the mortar samples when sediment samples were incorporated. A positive relationship between porosity and compressive strength values was evidenced, suggesting that the compactness of granular skeleton could play an important role in the preparation of materials. From an environmental point of view, the mortar samples containing sediment fractions showed relatively low leaching levels, which confirms their suitability for the manufacturing of construction materials.

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“…7 Almost all GGBFS is used as a partial substitute for Portland cement in concrete mixes or blended cement. 8,9 Pelletized slag is generally used for lightweight aggregates but can be ground into a material similar to GGBFS. Foamed slag is used as a lightweight aggregate for Portland cement concrete, but its production is less common and is being replaced by the pelletizing procedure.…”

Section: Introductionmentioning

confidence: 99%

Recovery of scandium and neodymium from blast furnace slag using acid baking–water leaching

Kim

Azimi

2020

RSC Adv.

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Effects of epoxy resin on ground-granulated blast furnace slag stabilized marine sediments

Abstract: In this study, an environmentally friendly epoxy resin is mixed with ground-granulated blast furnace slag (GGBS) for use as a stabilizer to enhance mechanical performance and leaching resistance properties of marine sediments.

Cited by 15 publications

References 36 publications

Activated slag as an additive to rubberized unsaturated polyester composite: Thermal and mechanical study

Activated slag as an additive to rubberized unsaturated polyester composite: Thermal and mechanical study

An eco-friendly epoxy polymer binder for the treatment of Tunisian harbor sediments: Laboratory investigations for beneficial reuse

Recovery of scandium and neodymium from blast furnace slag using acid baking–water leaching

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