Hellenic Natural Zeolite as a Replacement of Sand in Mortar: Mineralogy Monitoring and Evaluation of Its Influence on Mechanical Properties

Vogiatzis, Dimitrios; Kantiranis, Nikolaos; Filippidis, Anestis; Tzamos, Evangelos; Sikalidis, C.

doi:10.3390/geosciences2040298

Cited by 15 publications

(10 citation statements)

References 19 publications

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“…DoH is assumed as a function of Water-binder ratio and T is the average temperature of sealed samples which is scaled down to the correspond original chemical affinity assumption of isothermal curing temperature of 25°C in the model and 20°C in this study. Table 3 represents adjusted parameters in simulation of degree of hydration in which all mineral phases such as C3A, C3S (3CaΟ.SiΟ2) and C4AF were set both to those reported in the literature (Vogiatzis et al 2012) and XRF (X-ray fluorescence) of the binder in accordance with the minimum range of detection limit of XRD apparatus so that degree of hydration can be computed with higher precision. Some modification must be taken into account in model properties such as replacing cement to water ratio to cement to binder (zeolite-lime) ratio and real field condition equalized to isothermal curing in 20°C.…”

Section: Simulation Of Zeolite and Lime Hydration Processmentioning

confidence: 99%

İnce Kumlu Mühendislik Dolgularının Fiziksel Özellikleri Üzerine Pozzolan-Kireç Stabilizasyonunun Değerlendirilmesi

Jamhiri¹

2020

Konya Journal of Engineering Sciences

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Loose sands are susceptible to the earthquake due to lack of strength and even saturated sands may experience liquefaction. To address problems in loose fine sands, in this article, hydrated lime and zeolite as one of the pozzolanic methods for soil improvement are instrumented together to improve fine sandy soils' compaction properties. To provide aid for practical compaction of fine sandy soils, physical properties of treated soils with 3, 4 and 5 percent of lime and 8, 10 and 12 percent of zeolite are investigated. A series of Proctor tests, Specific Gravity of soil's solids and Minimum Index Density was performed to obtain maximum dry density and index void ratios. Additionally, the hydration rate of zeolite is modeled by Arrhenius method to quantify the effective duration of hydration process. Results showed that application of zeolite led to a better compaction property while treated soils only with lime did not show any improvement.

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Section: Simulation Of Zeolite and Lime Hydration Processmentioning

confidence: 99%

İnce Kumlu Mühendislik Dolgularının Fiziksel Özellikleri Üzerine Pozzolan-Kireç Stabilizasyonunun Değerlendirilmesi

Jamhiri¹

2020

Konya Journal of Engineering Sciences

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“…High quality HEU-type natural zeolites, display unique physical and chemical features and have a great variety of environmental, industrial, aquacultural and agricultural applications (e.g. Tserveni-Gousi et al 1997;Colella and Mumpton 2000;Bish and Ming 2001;Kallo 2001;Ming and Allen 2001;Tchernev 2001;Filippidis and Kantiranis 2007;Filippidis et al 2008;Filippidis 2010;Tzamos et al 2011;Vogiatzis et al 2012). The production of odourless-cohesive zeosludge using sludge from Sindos industrial area in proportions 20:80 and 40:60 (sludge:natural zeolite), as well as the purification of 300 mL Sindos industrial area wastewater using 0.1 and 0.2 g of natural zeolite, have been previously investigated (e.g.…”

Section: Introductionmentioning

confidence: 99%

Neutralization of sludge and purification of wastewater from Sindos industrial area of Thessaloniki (Greece) using natural zeolite

et al. 2017

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The commixture of sludge from Sindos industrial area of Thessaloniki with high quality HEU-type natural zeolite (tuff with 86 wt.% clinoptilolite-heulandite) in equal proportions, resulted in odourless and cohesive zeosludge. Also, the treatment of wastewater of pH 7.8 from the same area with high quality HEU-type natural zeolite (88 wt.% clinoptilolite-heulandite) resulted in production of clear water of pH 7.3, free of odours and improved quality parameters by 60% for the NO3 - content, 76% for the chemical oxygen demand (COD), 100% for P2O5 and Cr contents. Simultaneously, a precipitate of odourless and cohesive zeosludge was produced. The odourless and cohesive zeosludge produced either by the commixture of sludge with the natural zeolite or as precipitate from the treatment of industrial wastewater with the natural zeolite and coagulants, is suitable for safe deposition, since the fixation of the hazardous components in the micro/nano-pores of the HEU-type zeolite, as well as the meso- and macro-porous of natural zeolite, prevents their leaching by the rain water, protecting thus the quality of soils, surface and ground waters.

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“…Zeolitic volcaniclastic rocks of Thrace have been tasted in different industrial, environmental and agricultural applications (e.g., Misaelides et al, 1995;Filippidis et al, 2008Filippidis et al, , 2010Filippidis et al, , 2013Filippidis et al, , 2015aFilippidis, 2010Filippidis, , 2013Tsirambides and Filippidis, 2012;Vogiatzis et al, 2012). Some studies concern the use of Thrace zeolitic rocks as feed additives in hens, pigs and lambs (e,g., Tserveni-Gousi et al, 1997;Yannakopoulos et al, 2000;Deligiannis et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

The Mineralogical Composition of Thrace Zeolitic Rocks and Their Potential Use as Feed Additives and Nutrition Supplements

2017

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Thirty two (32) locations of zeolitic rocks from Thrace (29 from Evros prefecture and 3 from Rhodope prefecture) were investigated for their mineralogical composition by X-Ray Diffraction (XRD) method. According to EU Regulation No 651/2013, clinoptilolite of sedimentary origin (zeolitic tuffs) with ≥80 wt% clinoptilolite, ≤20 wt% clay minerals, free of fibres and quartz, can be used as feed additive for all animal species. The zeolitic rocks of Thrace on average contain, 23-89 wt% HEUtype zeolite (clinoptilolite-heulandite), 8-45 wt% mordenite (ten locations), 24 wt% analcime (one location), 1-11 wt% mica, 1 11 wt% clay minerals, 3-37 wt% quartz, 2-29 wt% cristobalite, 3-34 wt% feldspars and 0-22 wt% amorphous materials. Only one location contains 89 wt% HEU-type zeolite (clinoptilolite-heulandite), 2 wt% clay minerals, is free of fibres, but unfortunately it contains 3 wt% quartz and 2 wt% cristobalite. Considering the mineralogical composition, the zeolitic rocks of Thrace do not meet the requirements of the EU Regulation No 651/2013, and thus cannot be used as feed additives for all animal species and consequently as nutrition supplements, since the zeolitic rocks in all locations, contain on average 3-37 wt% quartz, 2-29 wt% cristobalite, 8-45 wt% mordenite (fibrous zeolite) in 10 locations, 24-65 wt% zeolites (HEU-type ± mordenite ± analcime) in 28 locations, 74 wt% HEUtype zeolite in 2 locations and 77 wt% HEU-type zeolite in 1 location.

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Hellenic Natural Zeolite as a Replacement of Sand in Mortar: Mineralogy Monitoring and Evaluation of Its Influence on Mechanical Properties

Cited by 15 publications

References 19 publications

İnce Kumlu Mühendislik Dolgularının Fiziksel Özellikleri Üzerine Pozzolan-Kireç Stabilizasyonunun Değerlendirilmesi

İnce Kumlu Mühendislik Dolgularının Fiziksel Özellikleri Üzerine Pozzolan-Kireç Stabilizasyonunun Değerlendirilmesi

Neutralization of sludge and purification of wastewater from Sindos industrial area of Thessaloniki (Greece) using natural zeolite

The Mineralogical Composition of Thrace Zeolitic Rocks and Their Potential Use as Feed Additives and Nutrition Supplements

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