Results 101 to 110 of about 390,044 (200)

High temperature fracture behavior and damage evolution of recycled aggregate concrete produced from metakaolin modified parent concrete

Structural Concrete, EarlyView.
Abstract The increasing use of recycled aggregate concrete (RAC) offers significant environmental benefits by reducing construction and demolition waste; however, its fracture performance and damage evolution under elevated temperatures remain insufficiently understood, particularly when recycled aggregates are derived from metakaolin modified parent ...
Zubair Yousuf, Viktor Hlavička
wiley   +1 more source

Integrated Alpha–Gamma Radiation Exposure From Natural Radionuclides in Cement and Gypsum Production: Implications for Occupational Lung Cancer Risk

Environmental Toxicology, EarlyView.
ABSTRACT Natural radionuclides in cement and gypsum production materials pose significant risks of occupational radiation exposure that are not well documented in Iraqi Kurdistan. This study quantifies alpha and gamma radiation levels from naturally occurring radioactive materials, specifically 222Rn, 238U, 232Th, and 40K, in cement and gypsum samples ...
Adil M. Hussien, Kardo O. Mamand, Hiwa M. Qadir, Berun N. Ghafoor, Goran H. Mohammad   +4 more
wiley   +1 more source

Structure and Properties of the Xerogels Based on Potassium Silicate Liquid Glass and Urea. [PDF]

Molecules, 2023
Gorokhovsky A, Burmistrov I, Kuznetsov D, Gusev A, Khaidarov B, Kiselev N, Boychenko E, Kolesnikov E, Prokopovich K, Konyukhov Y, Kravchenko M.   +10 more
europepmc   +1 more source

Potassium Silicate as Low-Temperature Binder in 3D-Printed Porous Structures for CO₂ Separation. [PDF]

ACS Omega, 2023
Sutens B, De Vos Y, Verougstraete B, Denayer JFM, Rombouts M.   +4 more
europepmc   +1 more source

From mystery to modulation: the structural story of Rb2[Si2O5]

Acta Crystallographica Section B, EarlyView.
The crystal structure of Rb2[Si2O5] has been solved and refined as an incommensurately modulated phase. Each [SiO4] tetrahedron of the phyllosilicate adopts one of two distinct orientations, and the positions of their constituent silicon and oxygen atoms are modeled using a combination of crenel and harmonic positional modulation functions.The crystal ...
Clivia Hejny, Volker Kahlenberg, Hannes Krüger   +2 more
wiley   +1 more source

Different Concentrations of Potassium Silicate in Nutrient Solution Affects Selected Growth Characteristics and Mineral Composition of Barley (Hordeum vulgare L.). [PDF]

Plants (Basel), 2022
Mavrič Čermelj A, Fideršek E, Golob A, Kacjan Maršić N, Vogel Mikuš K, Germ M.   +5 more
europepmc   +1 more source

The Making of Forum Ware: A High‐Resolution Archaeometric Study of Early Medieval Glazed Pottery From the Templum Pacis (Imperial Forum, Rome)

Archaeometry, EarlyView.
ABSTRACT The object of this study consists of an archaeometric investigation of Early medieval Forum Ware glazed ceramics found in the central archaeological area of Rome, a significant chronological and economic marker for 8th–11th centuries. Instrumental analysis included digital microscopy, ESEM‐EDS imaging, EDS spectral analysis, EMPA quantitative ...
Martina Bernardi, Simona Boccuti, Emiliano Di Luzio   +2 more
wiley   +1 more source

The Effects of Various Silicate Coatings on the Durability of Concrete: Mechanisms and Implications

Buildings
Silicate solutions can improve the durability of concrete conveniently and effectively. To horizontally compare the enhancement effects of different composite silicate solutions, three types of silicate surface treatment agents were prepared by using ...
Jinfu Li, Jiale Song, Shuheng Zhang, Wei Liu, Zhaokuan Cui, Weiguang Li   +5 more
doaj   +1 more source

Photosynthetic Pigments and Biochemical Response of Zucchini (Cucurbita pepo L.) to Plant-Derived Extracts, Microbial, and Potassium Silicate as Biostimulants Under Greenhouse Conditions. [PDF]

Front Plant Sci, 2022
Abd-Elkader DY, Mohamed AA, Feleafel MN, Al-Huqail AA, Salem MZM, Ali HM, Hassan HS.   +6 more
europepmc   +1 more source

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

Boreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein, Thomas Kasper, Alexis Badai Samudra, Martin Theuerkauf, Markus Lothar Fischer, Neda Rahimzadeh, Maria Sekar Proborukmi, Sonja Rigterink, Agnieszka Gruszczyńska, Christian Zeeden, Simon Parfitt, David John Horne, Lucy Roberts, Dustin White, Lisa Brogmus, Hans von Suchodoletz, Tobias Lauer, Marcel Weiss, David Colin Tanner, Brigitte Urban   +19 more
wiley   +1 more source