Results 121 to 130 of about 21,244 (276)

Mortars From Punic and Hellenistic–Roman Solunto: Materials, Formulations, and Technology

Archaeometry, EarlyView.
ABSTRACT This study presents an archaeometric investigation of 18 hydraulic rendering and bedding mortars from Punic and Hellenistic–Roman Solunto (NW Sicily). The research aimed to characterize raw materials, reconstruct manufacturing sequences, and evaluate technological proficiency through mineralogical and petrochemical analyses.
G. Montana, G. Polizzi, C. Portale, M. Gasparo Morticelli, L. Randazzo   +4 more
wiley   +1 more source

Phase formation and carbonation impact on the strength of alkali-activated demolition waste with calcium compounds

Case Studies in Construction Materials
The present study evaluates the impact of calcium compounds on the reaction kinetics of alkali-activated construction demolition waste. Two materials, concrete and brick demolition waste, were milled to powders and supplemented with either carbonated ...
Isabelle Wichmann, Dietmar Stephan
doaj   +1 more source

Materials Characterization and Technological Aspects of Hellenistic Grey Ware Lamps From Nysa‐Scythopolis (Israel): Evidence Suggesting Local Production?

Archaeometry, EarlyView.
ABSTRACT Grey ware lamp fragments and a production waster from Tell Iẓṭabba (Israel) were analyzed to determine their manufacturing technology and provenance. These were compared with a light brown‐orange reference fabric from the same site.
Dana Ashkenazi, Anat Cohen‐Weinberger, Achim Lichtenberger, Oren Tal   +3 more
wiley   +1 more source

Solidificação e estabilização de resíduos inorgânicos industriais: estudo da eficiência do processo e evidência de mecanismos de imobilização [PDF]

, 2007
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas. Programa de Pós-Graduação em QuímicaAs opções de tratamento para os resíduos sólidos industriais são bastante escassas, o que acaba estimulando a ...
Silva, Marcos André do Rego
core  

Understanding silicate hydration from quantitative analyses of hydrating tricalcium silicates

Nature Communications, 2016
Despite its importance to the cement industry, tricalcium silicate hydration, with its sequence of induction, acceleration and deceleration steps, still hosts many open questions.
Elizaveta Pustovgar, Rahul P. Sangodkar, Andrey S. Andreev, Marta Palacios, Bradley F. Chmelka, Robert J. Flatt, Jean-Baptiste d’Espinose de Lacaillerie   +6 more
doaj   +1 more source

Development of CCMb: A Low‐Mg Calcite Reference Material for In Situ Measurement of δ18O, δ13C and Selected Trace Elements

Geostandards and Geoanalytical Research, EarlyView.
Key Points Low‐Mg calcite RM developed for in situ microanalysis applications in palaeoclimatology (δ18O, δ13C; Mg, Sr m/m). New data for calcite CRM IAEA‐603 (δ18O, δ13C by SIMS and GS‐IRMS; Mg m/m). No detectable IMF effect of Mg on SIMS δ18O determinations for mass fractions < 3650 μg g‐1.
Andreas T. Hertwig, Maciej G. Śliwiński, Irene Cantarero, Richard A. Stern, Carles Fàbrega, Jakub T. Śliwiński, Thomas Ludwig, František Majs, William Nachlas, John H. Fournelle, Xavier Llovet, Rachelle B. Turnier, David Parcerisa, Anna Travé   +13 more
wiley   +1 more source

The initial stages of cement hydration at the molecular level

Nature Communications
Cement hydration is crucial for the strength development of cement-based materials; however, the mechanism that underlies this complex reaction remains poorly understood at the molecular level.
Xinhang Xu, Chongchong Qi, Xabier M. Aretxabaleta, Chundi Ma, Dino Spagnoli, Hegoi Manzano   +5 more
doaj   +1 more source

Development of a Nano‐Hybrid Composite Using Bovine Hydroxyapatite and Montmorillonite for Endodontic Applications—An In Vitro Study

International Endodontic Journal, EarlyView.
ABSTRACT Aim Hydraulic calcium silicate cements are widely employed in endodontics due to their excellent biocompatibility, bioactivity, sealing ability, and remineralisation potential. However, currently used products such as mineral trioxide aggregate (MTA) exhibit several limitations, including discolouration, cost, and poor handling properties ...
P. A. A. S. Prasad Kumara, Paul R. Cooper, Peter Cathro, Henry F. Duncan, Maree Gould, George Dias, Jithendra Ratnayake   +6 more
wiley   +1 more source

Dentine Regeneration With Calcium Strontium Silicate: In Vitro Odontogenic Differentiation, Antimicrobial Activity, Immunomodulation and In Vivo Pulpotomy in Rat Molars

International Endodontic Journal, EarlyView.
ABSTRACT Aim This study examined the in vitro and in vivo performance of calcium strontium silicate (CSR) as a novel biomaterial for vital pulp therapy (VPT), assessing its odontogenic differentiation, antibacterial activity, immunomodulation, inflammatory response and dentine regeneration potential compared to calcium silicate (CS) and Mineral ...
Mohamed Mahmoud Abdalla, Vidhyashree Rajasekar, Heba Ahmed, Mengyu Huang, Cynthia Kar Yung Yiu   +4 more
wiley   +1 more source

Regenerative Endodontics in Teeth With Irreversible Pulpitis: A Scoping Review

International Endodontic Journal, EarlyView.
ABSTRACT Introduction Regenerative endodontic procedures (REPs) have been widely used to manage a range of pulpal pathologies, particularly in immature permanent teeth. The development of bioactive calcium silicate–based materials has led to a paradigm shift in vital pulp therapy (VPT) and REPs.
Mahmoud Torabinejad, Neda Najafimakhsoos, George Bogen   +2 more
wiley   +1 more source