Results 31 to 40 of about 247,021 (230)

Concentration effects in the rheology of cement pastes: Krieger-Dougherty revisited [PDF]

, 2011
Cement pastes are concentrated suspensions of granular particles in water and their rheology strongly affects the behaviour of all concretes and other cementitious materials.
Banfill, Phillip Frank Gower
core  

Developments In Orthodontıc Cements

Turkish Journal of Orthodontics, 1994
In this literature review dental cements which were used for banding orthodontic attachments to teeth were evaluated. The general properties of zincphosphate cement, polycarboxylate cement and recently developed glass ionomer cements were discussed.
İlken Kocadereli
doaj   +1 more source

Behavior of manufactured sand and recycled coarse aggregate concrete‐filled steel tubular stub columns with circular section

Structural Concrete, EarlyView.
Abstract Accelerated urbanization has intensified environmental concerns due to excessive natural resource consumption and construction waste generation. Circular concrete‐filled steel tube (CFST) columns incorporating manufactured sand recycled coarse aggregate (MS‐RCA) concrete have emerged as an innovative composite element offering notable ...
Minsheng Guan, Qi Chen, Gang Wang, Aiguo Xiong, Ying Wang, Le Li, Anne W. M. Ng, Qing Quan Liang   +7 more
wiley   +1 more source

Avaliação do desempenho do aditivo superplastificante de base policarboxilato pré-tratado por sonicação no comportamento reológico de pastas de cimento portland [PDF]

, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Civil, Florianópolis, 2015Um dos mais eficientes métodos de dispersão de materiais é o uso de um agente dispersante (em geral, um
Carlesso, Débora Martinello
core  

ZrO2 nanoparticles' effects on split tensile strength of self compacting concrete

Materials Research, 2010
In the present study, split tensile strength of self compacting concrete with different amount of ZrO2 nanoparticles has been investigated. ZrO2 nanoparticles with the average particle size of 15 nm were added partially to cement paste (Portland cement ...
Ali Nazari, Shadi Riahi
doaj   +1 more source

Influence of calcination temperature on the durability of metakaolin concrete and limitations of conventional testing methods

Structural Concrete, EarlyView.
Abstract Incorporating metakaolin (MK) as a partial cement replacement offers a viable pathway to reduce carbon emissions while improving concrete performance. However, its durability behavior remains inconsistent, and the applicability of durability test methods to MK‐based concrete is not well established.
Mayen J. Geu, Yan Zhuge, Xing Ma, Thong M. Pham   +3 more
wiley   +1 more source

Exploring the Impact of Ultrasonic Activation on the Antimicrobial Activity of Root Canal Sealers: A Year‐Long Ex Vivo Investigation Into Bacterial Survival

International Endodontic Journal, EarlyView.
ABSTRACT Aim This study investigated the long‐term survival of bacteria in root canals obturated using two endodontic sealers—AH Plus Jet (AHP) and BioRoot RCS (BCS)—while also assessing the influence of ultrasonic agitation on their antimicrobial effectiveness.
F. L. P. Viana, M. A. F. Damasceno, M. P. Alcalde, R. R. Vivan, I. G. de Moraes, M. A. H. Duarte, E. T. Pinheiro, B. C. Vasconcelos   +7 more
wiley   +1 more source

Cement selection for fixing implant restorations [PDF]

Stomatološki glasnik Srbije, 2019
Introduction When intraocclusal space is long enough, and patient has high aesthetic demands, cementing implant restoration is the proper choice. The aim of this study was to assess retentive forces of different cements used for fixing restoration to ...
Stamenković Dejan, Todorović Aleksandar   +1 more
doaj  

The Influence of Abutment Surface Treatment and the Type of Luting Cement on Shear Bond Strength between Titanium/Cement/Zirconia

Advances in Materials Science and Engineering, 2015
Objectives. The objectives of this study were to evaluate the shear bond strength of zirconia cylinders on a modified titanium surface using different luting cement types. Material and Methods.
Beata Śmielak, Marcin Gołębiowski, Leszek Klimek   +2 more
doaj   +1 more source

Comparison of the Effect of Three Cements on Prevention of Enamel Demineralization Adjacent to Orthodontic Bands

Journal of Dental Research, Dental Clinics, Dental Prospects, 2012
Background and aims. This in vitro study was designed to compare enamel demineralization depths adjacent to bands cemented with zinc polycarboxylate, glass ionomer (GI) and resin-modified glass ionomer (RMGI), in order to achieve minimal enamel ...
Mehdi Kashani, Sareh Farhadi, Neda Rastegarfard   +2 more
doaj   +1 more source