Fine aggregate substitution by granular activated carbon can improve physical and mechanical properties of cement mortars

Justo-Reinoso, Ismael; Srubar, Wil V.; Caicedo-Ramirez, Alejandro; Hernandez, Mark

doi:10.1016/j.conbuildmat.2017.12.181

Cited by 30 publications

(20 citation statements)

References 13 publications

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“…Ersan et al [29] found that the addition of granular activated carbon increased the 7 day and 28 day compressive strengths by 9% and 13%, respectively. Justo-Reinoso et al [23] replaced a small portion of fine aggregate from 1% up to 10% by mass with powdered activated carbon in cement mortar. They investigated the effect of activated carbon on both the compressive and tensile strengths of cement mortar and found that increased strength was observed at 1% and 2%, while the highest strength was measured at 1%.…”

Section: Discussionmentioning

confidence: 99%

“…Zeng et al [28] found that the incorporation of 4% activated carbon into fly ash cement increased the 28 day compressive strength by 18%. Justo-Reinoso et al [23] also reported that the replacement of fine aggregates with a small amount of granular activated carbon (1% and 2% by weight) increased the 7, 14, and 28 day compressive strength of cement mortar, whereas greater concentrations from 4% to 10% reduced the strength. The effect of the activated carbon content on the compressive strength is shown in Figure 4.…”

Section: Compressive Strengths Of Test Specimensmentioning

confidence: 97%

“…These ratios were chosen to identify the maximum compressive strengths of carbon/cement composites. The literature suggests the maximum compressive strength of cementitious composites with carbon additives (e.g., activated carbon or carbon fiber) are found when they are added around 1% by weight [23][24][25][26][27]. In addition, 5% and 10% were selected to investigate extreme scenarios when excessive amounts of activated carbon were used.…”

Section: Design and Sample Preparationmentioning

confidence: 99%

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Experiment on Activated Carbon Manufactured from Waste Coffee Grounds on the Compressive Strength of Cement Mortars

Lee

Youn

2021

Symmetry

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In this paper, we performed an experiment with activated carbon manufactured from waste coffee grounds on the compressive strength of normal cement mortars. The activated carbon reinforcement was manufactured from waste coffee grounds, and the collected coffee grounds were then transformed into activated carbon granules through the physical activation process. The activated carbon/cement composites were prepared by mixing cement with activated carbon granules with the weight fractions of 0.5%, 1%, 1.5%, 5%, and 10% cement. The experimental results show that adding activated carbon up to 1.5 wt% increased the early strength of cement mortars. Furthermore, we found that the composites incorporated with a small amount of activated carbon (≤1.5 wt%) had higher compressive strength over the curing period than the normal cement without activated carbon. We believe that these results would potentially have commonalities with morphological symmetry phenomena that occur on the surfaces of activated carbon granules.

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Section: Discussionmentioning

confidence: 99%

Section: Compressive Strengths Of Test Specimensmentioning

confidence: 97%

Section: Design and Sample Preparationmentioning

confidence: 99%

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Experiment on Activated Carbon Manufactured from Waste Coffee Grounds on the Compressive Strength of Cement Mortars

Lee

Youn

2021

Symmetry

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“…Results of the study showed increased compressive strength and enhanced microstructure it was found that by adding activated carbon at 4% by mass in cement mortar containing 20% fly ash considerably increase the compressive strength. Scanning electron microscope images of selected hydrated pastes showed that activated carbon in fly ash cement system could fill the gap of hydration products such as, calcium silicate hydrate and ettringite [15].…”

Section: Nj Krou Et Al[2015]mentioning

confidence: 99%

Prospective Benefits of Using Activated Carbon in Cement Composites- An Overview

Aiswarya¹,

Moses²,

Thomas³

et al. 2019

IJARET

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An exhaustive study of available literature on use of activated carbon in cement composites was done. Adsorptive nature of activated carbon can be effectively used to remove toxic air pollutants such as nitrogen oxide, volatile organic compounds by adsorbing to concrete elements (chimneys, tunnels etc.). Experimental research work carried out on cement composites containing activated carbon revealed its potential ability to improve physical, mechanical and durability properties of cement composites. A comprehensive review of selected literature was carried out and the significant findings are presented in this paper. Researchers across the globe had experimentally showed that presence of activated carbon at 1 to 4% in cement composites positively influence various properties of cement composites.

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“…The existence of fractures and other microstructural aspects (microcracks, pores, etc.) in rocks significantly affect their fatigue strength [16,18,19].…”

Section: Introductionmentioning

confidence: 99%

Relationship between shoreline evolution and sediment wear

López

Pagán

Tenza-Abril

et al. 2020

Proceedings E Report

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The main objective to this work is to establish a relationship between shoreline evolution and sediment wear. The shoreline evolution trend is similar to of the results obtained by the accelerated particle wear test (APW). However, the relationship between the number of APW test cycles and the years of shoreline evolution is not clear. In Guardamar beach the ratio (years/cycles) is 9.7, in Marineta Casiana beach (it is 5.6, and in Arenal beach it is 3. Differences may be due to the different mineralogical composition and morphology of the sand particles.

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Fine aggregate substitution by granular activated carbon can improve physical and mechanical properties of cement mortars

Cited by 30 publications

References 13 publications

Experiment on Activated Carbon Manufactured from Waste Coffee Grounds on the Compressive Strength of Cement Mortars

Experiment on Activated Carbon Manufactured from Waste Coffee Grounds on the Compressive Strength of Cement Mortars

Prospective Benefits of Using Activated Carbon in Cement Composites- An Overview

Relationship between shoreline evolution and sediment wear

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