Geochemistry of bentonitized tuff band of outer NW Himalaya, Jammu and Kashmir, India

Kundal, Som Nath; Chowdhary, Nighat; Kumar, Sandeep

doi:10.1007/s12040-022-01821-4

Cited by 2 publications

(1 citation statement)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Portland cement (Camilleri et al, 2012;Chintalapudi and Pannem, 2020;Llanes et al, 2018;Maheswaran et al, 2016;Oliveira et al, 2020;Sanjuán et al, 2015;Santos et al, 2020;Silva et al, 2023;Singhal et al, 2008;Souza et al, 2017;Taefi et al, 2010;Thapa et al, 2019;Trapote-Barreira et al, 2016;Trusilewicz et al, 2019;Vescovi et al, 2023;Wattanasiriwech et al, 2009;Yang et al, 2014;Zhu et al, 2015), tuff from various references (Al-Harahsheh et al, 2014;Al-Zboon et al, 2016;Ciccioli et al, 2010;Khataee et al, 2018;Kundal et al, 2022;Yu et al, 2023)…”

Section: Reaction Kinetics and Strengthening Mechanismsmentioning

confidence: 99%

Factors Influencing the Mechanical Properties and Reaction Kinetics of Wasted Ultrabasic Tuff Used as a Binder

Zhang,

Hou,

Cui

et al. 2024

Preprint

View full text Add to dashboard Cite

Ultrabasic tuff powder, a solid waste generated from manufactured sand and aggregate production without calcination treatment, contains less than 45% SiO2 stabilized in aluminosilicate. Due to its high crystallinity, few studies have explored its viability as a raw material for binder preparation. Using an orthogonal experimental design, this study revealed the impacts of three key factors on the mechanical properties of ultrabasic tuff-based binder (UTB): the mass ratio of silica to alumina (S/A), the mass ratio of sodium oxide (Na2O) to binders (N/B), and curing temperature (T). To elucidate the reaction kinetics, an array of analytical techniques, including Inductively Coupled Plasma-Optical Emission Spectrometer (ICP-OES), X-ray Diffraction (XRD), X-ray Fluorescence (XRF), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), and Energy-dispersive X-ray spectroscopy (EDS), were employed. The results indicate that an increase in S/A and T enhanced the dissolution degree of precursors, along with improved compressive strengths. Conversely, an increase in N/B led to a minimal reduction in the dissolution degree, with compressive strengths initially rising and then declining. The optimal combination of three factors was S/A = 5, N/B = 0.10, and T = 80°C, resulting in a maximum compressive strength exceeding 80.0 MPa. The ratio of dissolved silicon (Si) to aluminum (Al) was approximately 50:1, signifying a composition profoundly different from traditional alkali-activated binders. Additionally, the proportions of dissolved silica (SiO2) and alumina (Al2O3) were determined to be 46.38% and 4.48% of the total, respectively, suggesting that UTB comprised both reactive and unreactive components. The reactive portion, consisting of quartz, calcite, chlorite, and silica fume, forms an amorphous (N, C)-A-S-H gel, connecting with the unreactive part.

show abstract

Section: Reaction Kinetics and Strengthening Mechanismsmentioning

confidence: 99%

Factors Influencing the Mechanical Properties and Reaction Kinetics of Wasted Ultrabasic Tuff Used as a Binder

Zhang,

Hou,

Cui

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

Koşuburnu (Bayramiç-Çanakkale) Bentonit Yatağının Oluşumu Sırasında Ana, İz ve Nadir Toprak Elementlerinin Hareketliliği

Büyükkahraman,

Çoban

2024

Geosound

View full text Add to dashboard Cite

Orta-Üst Miyosen yaşlı Arıklı ignimbiritine ait riyolitik, traki-andezitik karakterli camsal ve litik tüflerin alterasyonu sonucunda oluşan Koşuburnu bentoniti, stratiform-merceksel geometriye sahiptir ve içinde küçük çakıl-kum boyutlu altere olmuş volkanik kayaç parçaları içerir. Bentonitin esas minerali dioktaedral smektit (Ca ve Na montmorillonit)’tir. Kuvars, opal-C, α-kristobalit, kaolinit, karışık tabakalı illit-smektit (I/S), illit, feldspat, kalsit, dolomit, hematit, halloysit, stronsiyanit, jips ve pirit bileşime giren diğer minerallerdir. Koşuburnu bentonitinin oluşumu sırasında, ilerleyen alterasyona bağlı olarak, element hareketliliği gerçekleşmiş ve bentonit; MgO, Al2O3, Cs, Hf, Nb, Ta, Th, Y, Zn, hafif nadir toprak elementleri (LREE) ve ağır nadir toprak elementleri (HREE) yönünden zenginleşmiş; Fe2O3, K2O, Na2O, TiO2, Rb, Sr ve U yönünden ise fakirleşmiştir. En fazla kayıp Na2O’da gerçekleşirken, en fazla zenginleşme Cs’de olmuştur. Ana kayaya göre bentonitteki 17 kat (3.2); felsik üst kabuğa göre ise 8 kat Cs ile 3.17 kat (1.29) MgO zenginleşmeleri dış kaynaklı Mg ve Cs getirimine (hidrotermal) işaret eder. Benzer olarak kondritik Zr/Hf oranından (36.6) büyük olan Zr/Hf oranı (37.33) hidrotermal değişimi yansıtmaktadır. Bentonit örneklerinde belirlenen yüksek Th/U oranları (5.68 ile 50.30), U ve V kayıpları; alterasyonun ilk evresini yansıtan meteorik su katkılı Mg’ca fakir, Fe’ce zengin hidrotermal çözeltilerin etkisi ile gerçekleşmiştir. Farklı derecelerde LREE ve HREE zenginleşmeleri, alterasyon ortamındaki yerel fiziko-kimyasal değişiklikler ve ana kayanın (riyolitik-trakiandezitik) bileşimsel farklılığından kaynaklanmıştır.

show abstract

Geochemistry of bentonitized tuff band of outer NW Himalaya, Jammu and Kashmir, India

Cited by 2 publications

References 58 publications

Factors Influencing the Mechanical Properties and Reaction Kinetics of Wasted Ultrabasic Tuff Used as a Binder

Factors Influencing the Mechanical Properties and Reaction Kinetics of Wasted Ultrabasic Tuff Used as a Binder

Koşuburnu (Bayramiç-Çanakkale) Bentonit Yatağının Oluşumu Sırasında Ana, İz ve Nadir Toprak Elementlerinin Hareketliliği

Contact Info

Product

Resources

About