Results 71 to 80 of about 4,892 (215)

Hydration of calcium aluminate cement blended with anhydrite [PDF]

Advances in Cement Research, 2018
Calcium aluminate cements (CACs) are used in combination with calcium sulfates as binders in self-levelling mortars. The influence of commercial CAC/anhydrite ratio on the solid phase assemblage and pore solution at water to binder (w/b) ratios of 0·40 and 0·72 was investigated between 1·5 h and 91 d of hydration using a multi-method approach including
Gwenn Le Saoût, Barbara Lothenbach, Pascal Taquet, Hervé Fryda, Frank Winnefeld   +4 more
openaire   +2 more sources

Biocompatibility With Osteogenic Potential of Premixed Bioceramic Cements for Use in Apical Surgery

Australian Endodontic Journal, EarlyView.
ABSTRACT This study investigated the biocompatibility and osteogenic potential of premixed bioceramic cements (PBCs)—CeraPutty, EndoCEM MTA Premixed, Well‐Root PT, and One‐Fil PT Injectable—as alternatives to mineral trioxide aggregate for retrograde filling in endodontic microsurgery.
Yesol Kim, Jae‐Hoon Kim, Unni Krishnan, Hyeon‐Cheol Kim, Minju Song, Sang Won Kwak   +5 more
wiley   +1 more source

The nanostructure and degradation of C-S-H in Portland and blended cements [PDF]

, 2007
The microstructure and composition of water and KOH activated hardened pastes of commercial neat white Portland cement (WPC) and blends with 30% fly ash (PFA) have been characterised using a multi-technique approach, With particular emphasis on the ...
Oliveira Morais de Sousa Girão, Ana Violeta
core  

Effects of Fly Ash Composition to Mitigate Conversion of Calcium Aluminate Cement Composites

Buildings, 2023
Calcium aluminate cement (CAC) is one of the alternative cements that is widely used for special applications. However, during the hydration process degradation of CAC microstructure, the so-called hydrate conversion process, hexagonal calcium aluminate ...
Thwe Thwe Win, Chinnapat Panwisawas, Pitcha Jongvivatsakul, Withit Pansuk, Lapyote Prasittisopin   +4 more
doaj   +1 more source

Mortars From Punic and Hellenistic–Roman Solunto: Materials, Formulations, and Technology

Archaeometry, EarlyView.
ABSTRACT This study presents an archaeometric investigation of 18 hydraulic rendering and bedding mortars from Punic and Hellenistic–Roman Solunto (NW Sicily). The research aimed to characterize raw materials, reconstruct manufacturing sequences, and evaluate technological proficiency through mineralogical and petrochemical analyses.
G. Montana, G. Polizzi, C. Portale, M. Gasparo Morticelli, L. Randazzo   +4 more
wiley   +1 more source

Influence of radiopacifier additives on calcium aluminate cement properties [PDF]

Materials Research, 2014
The aim of this study was to determine the best radiopaque additive to be incorporated to calcium aluminate cement (CAC) to promote radiopacity. Measurements of optical density were carried out on white MTA and CAC with and without additives such as ...
Ivone Regina de Oliveira, Talita Luana de Andrade, Daniele Coelho Matsuo, Renata Martins Parreira, Marcos Jacobovitz, Victor Carlos Pandolfelli   +5 more
doaj   +1 more source

Development of a Nano‐Hybrid Composite Using Bovine Hydroxyapatite and Montmorillonite for Endodontic Applications—An In Vitro Study

International Endodontic Journal, EarlyView.
ABSTRACT Aim Hydraulic calcium silicate cements are widely employed in endodontics due to their excellent biocompatibility, bioactivity, sealing ability, and remineralisation potential. However, currently used products such as mineral trioxide aggregate (MTA) exhibit several limitations, including discolouration, cost, and poor handling properties ...
P. A. A. S. Prasad Kumara, Paul R. Cooper, Peter Cathro, Henry F. Duncan, Maree Gould, George Dias, Jithendra Ratnayake   +6 more
wiley   +1 more source

An Updated Classification of Hydraulic Cements Used in Dentistry

International Endodontic Journal, EarlyView.
ABSTRACT Mineral trioxide aggregate (MTA) was the first hydraulic cement used in endodontics. It is composed of Portland cement, a binder in concrete, and bismuth oxide to enhance the radiopacity. MTA was introduced in dentistry to be used as a root‐end filling material and also to repair root perforations.
Josette Camilleri
wiley   +1 more source

Hydraulic fast‐setting calcium silicate cement for crown cementation

Journal of Prosthodontics, EarlyView.
Abstract Purpose This study evaluated film thickness, diametral tensile strength (DTS), and crown retentive strength of hydraulic fast‐set calcium silicate cement (fast‐set CSC) compared to conventional luting cements. Materials and Methods Fast‐set CSC was compared to zinc phosphate cement and glass ionomer cement.
Atefeh Nemati Karimooy, Bahram Ranjkesh, Dirk Leonhardt, Henrik Løvschall   +3 more
wiley   +1 more source

Hydration properties of portland cement plus calcium aluminate cement at 0∼20°C

, 2012
The hydration of Portland cement plus calcium aluminate cement (PAC) was investigated at 0°C, 5°C, 10°C and 20°C for its setting times and compressive strength using X-ray diffraction(XRD), thermal analysis(DTA-TG) and environmental scanning electron ...
Xu, Linglin, Wang, Peiming
core   +1 more source