Results 51 to 60 of about 74,415 (282)

δ13C and δ18O Stable Isotope Analysis Applied to Detect Technological Variations and Weathering Processes of Ancient Lime and Hydraulic Mortars

Geosciences, 2018
Samples of mortars were collected from lime and hydraulic mortars affected by environmental degradation. A total of 63 samples were obtained from Hellenistic, Late Roman and Byzantine historic constructions located at Kavala, Drama and Makrygialos in ...
Elissavet Dotsika, Dafni Kyropoulou, Vassilios Christaras, Georgios Diamantopoulos   +3 more
doaj   +1 more source

Microstructural study of Styrene Polyacrylic (SPA) latex modified mortars [PDF]

, 2019
In this paper, the influence of the styrene polyacrylic (SPA) latex polymer on the microstructural properties of limestone mortars has been studied. For this purpose, five mortars were developed with different dosages of the SPA latex (0%, 2.5%, 5%, 7.5%
BEDERINA, Madani, BERKAK, Hichem, MAKHLOUFI, Zoubir   +2 more
core  

Lithium Intercalation in the Anisotropic Van Der Waals Semiconductor CrSBr

Advanced Functional Materials, EarlyView.
We report the lithium intercalation in the layered van der Waals crystal CrSBr, revealing strongly anisotropic ion‐migration dynamics. Optical and electrical characterization of exfoliated CrSBr shows lithium diffusion coefficients that differ by more than an order of magnitude along a‐ and b‐directions, consistent with molecular dynamics simulations ...
Kseniia Mosina, Aljoscha Söll, Jiří Šturala, Martin Veselý, Petr Levinsky, Ondřej Kaman, Florian Dirnberger, Giuliana Materzanini, Nicola Marzari, Gian‐Marco Rignanese, Borna Radatović, Vlastimil Mazánek, David Sedmidubský, Zdeněk Sofer   +13 more
wiley   +1 more source

New buildings materials obtained by the recovery of mining waste and red mud from the manufacture of alumina

Romanian Journal of Ecology & Environmental Chemistry, 2022
In the current context of the transition to a circular economy, efforts are primarily focused on recycling, the reintegration of some wastes into the economy, as a secondary raw material.
Adriana Cuciureanu, Bogdan Stanescu, Georgiana Cernica   +2 more
doaj   +1 more source

Switchable Supramolecular Adhesive by Tuning Interfacial Bonding and Modulus

Advanced Functional Materials, EarlyView.
The supramolecular adhesive (HyDiP) shows reversible adhesion and recyclability. In the dehydrated state, it is dense, stiff (E ≈445 MPa), transparent, and provides strong bonding with adhesion strengths up to 4.65 MPa. In the hydrated state, it becomes porous, soft (E ≈0.11 MPa), and detaches easily, enabling sustainable high‐strength applications ...
Rumin Fu, Cairong Xiao, Zihao Du, Changhong Linghu, Yongdong Shi, Chuyang Xiang, Mingxin Wan, Guoxin Tan, Limin Lu, Chengyun Ning, K Jimmy Hsia   +10 more
wiley   +1 more source

Thermal Analysis of Concrete Blocks and Stack-Bond Prisms under Different Boundary Conditions

Construction Materials
Fire is a significant threat to human lives and the integrity of buildings. To better understand the complex behavior of masonry exposed to high temperatures, thermal analyses were carried out to evaluate the temperature distribution in concrete blocks ...
Gustavo Henrique Nalon, José Carlos Lopes Ribeiro, Leonardo Gonçalves Pedroti, Roberto Marcio da Silva, Eduardo Nery Duarte de Araújo   +4 more
doaj   +1 more source

Infrared Nanocrystals for Space Application: Hardness to Irradiations

Advanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret, Dario Mastrippolito, Bingbing Xia, Adrien Khalili, Maxime Lebreton, Giorgia Strobbia, Albin Colle, Marco Paye, Mariarosa Cavallo, Erwan Bossavit, Claire Abadie, Yoann Prado, Debora Pierucci, Victor Parahyba, Francois Coursaget, David Darson, Emrick Briand, Ian Vickridge, Stephane Demiguel, Sebastien Massenot, Jean‐Marc Belloir, Vincent Goiffon, Emmanuel Lhuillier   +22 more
wiley   +1 more source

Effect of the use nickeliferous laterite and pumice as additives in the performance and durability of the Portland cement

Revista Facultad de Ingeniería Universidad de Antioquia, 2016
This work evaluated the pozzolanic behavior of the niqueliferous laterite of Cerromatoso (Córdoba) and the pumice of Cemex (Boyacá), based on the NTC standards for fine aggregates.
María Carolina Rueda-Gualdrón, Karen Milena Vega-Nuñez, Carlos Alberto Ríos-Reyes   +2 more
doaj   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

Advanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He, Minxian Zhang, Jinqiang Zhang, Hongqi Sun, Shaobin Wang, Xiaoguang Duan   +5 more
wiley   +1 more source

Recycling Volcanic Lapillus as a Supplementary Cementitious Material in Sustainable Mortars

Recycling
This study investigates the feasibility of using volcanic lapillus as a supplementary cementitious material (SCM) in mortar production to improve the sustainability of the cement industry.
Fabiana Altimari, Luisa Barbieri, Andrea Saccani, Isabella Lancellotti   +3 more
doaj   +1 more source