Results 71 to 80 of about 1,652 (235)

The effect of alginates on the hydration of calcium aluminate cement

Carbohydrate Polymers, 2020
The hydration of calcium aluminate cement (CAC) in the presence of sodium alginate which is known to slightly retard Portland cement, was studied using heat flow calorimetry and mortar strength testing. Most surprisingly, addition of alginate resulted in an earlier occurrence of the maximal heat release as well as an increased early strength, thus ...
Alexander Engbert, Stefanie Gruber, Johann Plank   +2 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 application of thermal analysis to the hydration and conversión Reactions of calcium alumínate Cements

Materiales de Construccion, 1992
The hydration of calcium aluminates cements is dominated by that of CA, CaAl2O4, which is a major constituent of all of them. At ambient temperatures, CAH10 and an amorphous phase are formed initially, but these are metastable and slowly (or more ...
S. M. Bushnell-Watson, J. H. Sharp
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

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

About the role of hydrafed calcium carboaluminates in improving the technology of complex processing of nephelines

Записки Горного института, 2018
The scientific justification and development of the method for industrial synthesis of complex aluminates of alkaline earth metals is an innovative solution that determined several directions in the development of technology for complex processing of ...
V. M. Sizyakov, V. N. Brichkin
doaj   +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

Microstructure of calcium aluminates and their mixes after 3 days of hydration

, 1999
Synthetically prepared calcium aluminates such as CA, CA2, C12A7 (C = CaO, A = Al2O3) and their various combinations have been subjected to hydration in water for three days.
Kumar, Sanjay, Daspoddar, P K, Das, Swapan Kumar   +2 more
core  

Structural Chemistry of Alkaline Earth Hexa-Aluminates

, 1994
Computer-based atomistic simulation techniques have been used to investigate the crystal chemistry and phase relationships in alkaline earth hexa-aluminates.
A. N. Cormack, Jae-Gwan Park
core   +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