Utilization of waste engine oil for expanded clay aggregate production and assessment of its influence on lightweight concrete properties

Burbano-Garcia, C.; Hurtado, Ana María; Silva, Yimmy Fernando; Delvasto, Silvio; Araya-Letelier, Gerardo

doi:10.1016/j.conbuildmat.2020.121677

Cited by 21 publications

(9 citation statements)

References 46 publications

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“…Lu et al (2021) [ 163 ] also obtained compressive strength results compatible with HPC using expanded clay aggregates. However, Garcia et al (2021) [ 164 ] reported that the use of expanded clay in high-performance concretes is problematic, due to defects arising from the calcination of these aggregates. As a result, it is usual to increase OPC consumption and use a high number of additives, in addition to reducing the w/c factor, which is only possible using considerable amounts of plasticizer additive.…”

Section: Classic Components Used For Hpc and Uhpc Productionmentioning

confidence: 99%

Materials for Production of High and Ultra-High Performance Concrete: Review and Perspective of Possible Novel Materials

Marvila¹,

Azevedo²,

Matos

et al. 2021

Materials

110

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This review article proposes the identification and basic concepts of materials that might be used for the production of high-performance concrete (HPC) and ultra-high-performance concrete (UHPC). Although other reviews have addressed this topic, the present work differs by presenting relevant aspects on possible materials applied in the production of HPC and UHPC. The main innovation of this review article is to identify the perspectives for new materials that can be considered in the production of novel special concretes. After consulting different bibliographic databases, some information related to ordinary Portland cement (OPC), mineral additions, aggregates, and chemical additives used for the production of HPC and UHPC were highlighted. Relevant information on the application of synthetic and natural fibers is also highlighted in association with a cement matrix of HPC and UHPC, forming composites with properties superior to conventional concrete used in civil construction. The article also presents some relevant characteristics for the application of HPC and UHPC produced with alkali-activated cement, an alternative binder to OPC produced through the reaction between two essential components: precursors and activators. Some information about the main types of precursors, subdivided into materials rich in aluminosilicates and rich in calcium, were also highlighted. Finally, suggestions for future work related to the application of HPC and UHPC are highlighted, guiding future research on this topic.

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Section: Classic Components Used For Hpc and Uhpc Productionmentioning

confidence: 99%

Materials for Production of High and Ultra-High Performance Concrete: Review and Perspective of Possible Novel Materials

Marvila¹,

Azevedo²,

Matos

et al. 2021

Materials

110

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“…LFC was prepared in accordance with previous publications [ 48 , 49 ]. In a typical preparation process, desired amounts of clay and rice husk with a mass ratio of 1 : 1 were weighed and mixed well prior to the addition of water.…”

Section: Methodsmentioning

confidence: 99%

Greener Method for the Application of TiO2 Nanoparticles to Remove Herbicide in Water

Hiep

Anh

Dao

et al. 2023

Journal of Analytical Methods in Chemistry

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TiO2 nanoparticles have emerged as a great photocatalyst to degrade organic contaminants in water; however, the nanoparticles dispersed in water could be difficult to be recovered and potentially become contaminant. Herbicide like 2,4-dichlorophenoxyacetic acid (2,4-D) used in agriculture usually ends up with a large fraction remaining in water and sediment, which may cause potential risk to human health and the ecosystem. This study proposes a greener method to utilize TiO2 as photocatalyst to remove 2,4-D from water. Accordingly, TiO2 nanoparticles (10–45 nm) were synthesized and grafted on lightweight fired clay to generate a TiO2-based floating photocatalyst. Experimental testing revealed that 60.2% of 2,4-D (0.1 mM) can be decomposed in 250 min under UV light with TiO2-grafted lightweight fired clay floating on water. Degradation fits well into the pseudo-first-order kinetic model. The floating photocatalysts can degrade approximately 50% 2,4-D in 250 min under sunlight and the degradation efficiency is stable for cycles. The results revealed that the fabrication of floating photocatalyst could be a promising and greener way to remove herbicide contaminants in water using TiO2.

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“…Granular materials produced without the use of high-temperature processes along with the porous fired filler for concrete [21], [22], are being used in the modern production of lightweight concretes [23], [24]. Technologies of unfired fillers provide for the production of composite granules in which filler particles are bonded with an astringent.…”

Section: Granular Materialsmentioning

confidence: 99%

Magnesia Composites Formation as a Result of Furniture Production Wood Waste Processing

Miryuk

2022

Environmental and Climate Technologies

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The article outlines the problem of accumulation of short-fibered waste generated during chipboard sawing. Intense impact on the material determines a high level of technological availability of wood waste. The research objective is to create magnesia composite materials for various purposes based on chipboard processing waste. Moulding sands containing caustic magnesite, fly ash, aluminosilicate ash microsphere, wood waste and magnesium chloride solution have been studied. Change in the ratio of moulding sands’ components provided production of finely dispersed composite material, and granules of cylindrical and spherical shapes. Composite materials of coarse-pored structure have been developed on the basis of magnesia granules and hybrid magnesia-ash binder. Combination of layers of finely dispersed and coarse-pored materials has been proposed to form composites of variotropic structure with density 780–840 kg/m3 and strength 9.7–11.9 MPa. Combined structures’ stability is achieved due to the high adhesive ability of magnesia binders and genetic commonality of various layers.

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Utilization of waste engine oil for expanded clay aggregate production and assessment of its influence on lightweight concrete properties

Cited by 21 publications

References 46 publications

Materials for Production of High and Ultra-High Performance Concrete: Review and Perspective of Possible Novel Materials

Materials for Production of High and Ultra-High Performance Concrete: Review and Perspective of Possible Novel Materials

Greener Method for the Application of TiO2 Nanoparticles to Remove Herbicide in Water

Magnesia Composites Formation as a Result of Furniture Production Wood Waste Processing

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