Results 71 to 80 of about 530,228 (260)

Development and Application of Novel Sodium Silicate Microcapsule-Based Self-Healing Oil Well Cement

Materials, 2020
A majority of well integrity problems originate from cracks of oil well cement. To address the crack issues, bespoke sodium silicate microcapsules were used in this study for introducing autonomous crack healing ability to oil well cement under high ...
Wenting Mao, C. Litina, A. Al-Tabbaa
semanticscholar   +1 more source

Ab initio molecular dynamics description of proton transfer at water-tricalcium silicate interface [PDF]

Cement and Concrete Research. 136 (2020) 106162, 2019
For the first time, an ab initio molecular dynamics simulation was performed to describe the C$_3$S/water interface. The simulation shows that oxides with favorable environment are protonated at first, creating very stable hydroxide groups. Proton transfers occur between water and silicates, and between water and hydroxides formed upon water ...
arxiv   +1 more source

Investigating in vitro Effect of Endodontic Calcium Silicate-based Biomaterials on the Human Cell Survival: A Systematic Review [PDF]

Journal of Mazandaran University of Medical Sciences, 2023
Background and purpose: The use of biomaterials in restorative dentistry is receiving increasing attention. In the treatment of living pulp, calcium silicate-based materials are used, the most common of which are MTA, biodentine, and CEM Cement.
Sahar Shabani Panbeh Choleh, Mahmoud Heidari, Ezatolah Kazeminejad, Masoud Mohammadi, Abdolhalim Rajabi   +4 more
doaj  

SILICATE CEMENTS USED IN DENTISTRY

, 2023
Cements used in dentistry are filling materials that consist of two components: powder and liquid. When they are mixed, a homogeneous plastic mass, and at the end, a stone-like mass is formed [2,3]. Depending on the presence of various chemical elements in their composition, cements are divided into different groups.
Aliyeva G., Damirchiyeva M., Orujov A., Ibrahimova L.   +3 more
openaire   +2 more sources

Investigation of Sodium Silicate, Kaolinite, Cement and Water Effects' on Rheological and Physical Properties on Cement Based Grouts in Geotechnical and Geological Engineering [PDF]

Journal of Structural and Construction Engineering, 2019
Due to the growing population growth in cities, the use of injection technology in the ground improvements, construction industry, geotechnical and geological engineering is increasing day by day.
Sina Kazemian
doaj   +1 more source

Nano-level management of calcium silicate-hydrate nanoparticles structure formation during portland cement hydration process

MATEC Web of Conferences, 2018
Cement-containing building materials durability depends both on the original clinker composition and on the structure of hydrated portland cement compositions on micro and nanoscales.
Guryanov Alexander, Kozlov Vyacheslav, Sidorenko Yulia   +2 more
doaj   +1 more source

Conservative approach of a symptomatic carious immature permanent tooth using a tricalcium silicate cement (Biodentine): a case report

Restorative Dentistry & Endodontics, 2013
The restorative management of deep carious lesions and the preservation of pulp vitality of immature teeth present real challenges for dental practitioners. New tricalcium silicate cements are of interest in the treatment of such cases.
Cyril Villat, Brigitte Grosgogeat, Dominique Seux, Pierre Farge   +3 more
doaj   +1 more source

Thermoelectric properties of cement composite analogues from first principles calculations [PDF]

arXiv, 2022
Buildings are responsible for a considerable fraction of the energy wasted globally every year, and as a result, excess carbon emissions. While heat is lost directly in colder months and climates, resulting in increased heating loads, in hot climates cooling and ventilation is required. One avenue towards improving the energy efficiency of buildings is
arxiv  

Fire Resistance of Sewage Sludge Ash Blended Cement Pastes

Journal of Engineering, 2013
The aim of the present study is to investigate the hydration characteristics and the fire resistance of sewage sludge ash blended cement pastes by the determination of compressive strength, bulk density, and total porosity in addition to XRD and SEM ...
M. A. Tantawy, A. M. El-Roudi, Elham M. Abdalla, M. A. Abdelzaher   +3 more
doaj   +1 more source

Mechanical and biological evaluation of β-dicalcium silicate/dicalcium phosphate-based cements: promising materials for biomedical applications

Journal of Taibah University for Science
This study explores the synthesis and evaluation of β-Dicalcium silicate and Dicalcium phosphate-based cements for biomedical use. β-Tricalcium phosphate was synthesized using microwave-assisted wet precipitation, while β-Dicalcium silicate was prepared ...
Ammar Z. Alshemary, Almataz Bellah Marandi, Daver Ali, Tuğba Köse, Ali Deniz Dalgic, Ali Motameni, Zafer Evis   +6 more
doaj   +1 more source