Results 41 to 50 of about 552,793 (295)

Research on the improvement of underwater workability of cement paste by composite polymers

Case Studies in Construction Materials
The underwater workability of cement paste is essential for the application of non-dispersive underwater materials. However, the coordination of fluidity and flocculation remains challenging. While superplasticizers can enhance the fluidity of underwater
Xuesong Han, Fei Xu, Yang He, Wenxun Qian, Jun Lu, Jinyu Ge, Huaisen Li, Xingyu Meng   +7 more
doaj   +1 more source

Effect of Acid Activation-Hydrophilic-Modified Sepiolite on Comprehensive Properties of Oil-Well Cement

Journal of Chemistry, 2019
In this paper, sepiolite was treated by acid activation, coupling agent treatment, and sulfonation modification. The purpose of this study was to explore the changes in the fluidity and mechanical properties of sepiolite cement slurry before and after ...
Yihang Zhang, Miao He, Mingbiao Xu, Peng Xu   +3 more
doaj   +1 more source

Effect of Ultrafine Additives on the Morphology of Cement Hydration Products

Crystals, 2021
The present research is focused on the investigation of the influence of ultrafine additives on the structure formation of hardened cement paste and the establishment of the mechanisms of the morphological transformations, which determine the properties ...
Grigory Yakovlev, Rostislav Drochytka, Gintautas Skripkiūnas, Larisa Urkhanova, Irina Polyanskikh, Igor Pudov, Ekaterina Karpova, Zarina Saidova, Ali E. M. M. Elrefai   +8 more
doaj   +1 more source

A Versatile Engineering Platform for the Fabrication of Prosthetic Venous Valves Using Electrospinning

Advanced Healthcare Materials, EarlyView.
Percutaneous prosthetic venous valves are fabricated by embedding stents in an electrospun matrix that extends luminally to form leaflets. The design shields leaflets from hyperplastic cells, isolates struts from blood contact, and avoids discrete anchoring points.
Dario Arcuti, Salma Mansi, Dominic Biebl, Malin Reuter, Maximilian Grab, José Carlos Rodríguez‐Cabello, Petra Mela   +6 more
wiley   +1 more source

Thermal Processing Creates Water‐Stable PEDOT:PSS Films for Bioelectronics

Advanced Materials, Volume 37, Issue 13, April 2, 2025.
Instead of using chemical cross–linkers, it is shown that PEDOT:PSS thin films for bioelectronics become water‐stable after a simple heat treatment. The heat treatment is compatible with a range of rigid and elastomeric substrates and films are stable in vivo for >20 days.
Siddharth Doshi, Margaux O. A. Forner, Pingyu Wang, Salim El Hadwe, Amy T. Jin, Gerwin Dijk, Kenneth Brinson, Juhwan Lim, Antonio Dominguez‐Alfaro, Carina Yi Jing Lim, Alberto Salleo, Damiano G. Barone, Guosong Hong, Mark L. Brongersma, Nicholas A. Melosh, George G. Malliaras, Scott T. Keene   +16 more
wiley   +1 more source

Building like a Coral—Parallelized, Multiscale Biofabrication

Advanced Materials, EarlyView.
Corals build stiff, strong, and inherently circular skeletal materials under resource‐ and energy‐limited conditions—offering blueprints for transformative materials. We synthesize the current understanding of coral biomineralization and reframe coral growth as a multiscale, parallelized biofabrication process.
Asma Rehman, Marta Peña Fernández, Kristina K. Beck, Gavin L. Foster, Sebastian J. Hennige, Uwe Wolfram   +5 more
wiley   +1 more source

Thermal and Electrical Characterization of the Carbon Nanofibers Based Cement Composites

Medžiagotyra, 2017
The paper describes the influence of chemical modification of vapor grown carbon nanofibers (VGCnFs) on the thermal and electrical properties of the cement composites. The surface modification of nanofibers was performed by means of ozone and nitric acid
Agnieszka ŚLOSARCZYK, Waldemar PICHÓR, Maksymilian FRĄC   +2 more
doaj   +1 more source

Enabling Real‐Time, Non‐Ionizing 3D Imaging of Implantable Magnetic Cements Using Magnetic Particle Imaging

Advanced Materials Interfaces, EarlyView.
This study reports the first implantable resin cement capable of orientation‐sensitive Magnetic Particle Imaging (MPI). By coating the cement with an ultrathin iron film, the authors achieve a strong, angle‐dependent MPI signal that enables non‐ionizing, real‐time tracking of both implant position and orientation, opening new possibilities for safe ...
Gabriel C. Pinto, João M. Costa, Simão P. Fernandes, Gabriela F. Resende, Eduardo T. C. Coimbra, Patrick Vogel, Mariana B. Oliveira, Marco Giardiello, Ricardo M. Silva, Armando A.C.S. Lourenço, Nuno J. O. Silva   +10 more
wiley   +1 more source

Anti‐Slip Material‐Based Strategies and Approaches

Advanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani, Carlo Antonini, Teresa Gatti, Mengjiao Wang   +3 more
wiley   +1 more source

Study on Mechanism of Chemical Sulfate Attack on Reinforced Concrete Structures

Chemical Engineering Transactions, 2017
This paper studies four different cementitious materials including ordinary Portland cement paste and cement fly ash in closed environment based on previous study on characteristics of carbon sulphosilicate formation in single sulfate solution.
Liyuan Xie, Gang Wang
doaj   +1 more source