Results 31 to 40 of about 13,406 (166)

Controlled growth and ordering of poorly-crystalline calcium-silicate-hydrate nanosheets

open access: yesCommunications Materials, 2021
Calcium-silicate-hydrate is the main component of cement, and controlling its structure is vital to its properties. Here, graphene oxide is used to constrain the growth and optimize the assembly of calcium-silicate-hydrate, substantially improving its ...
Felipe Basquiroto de Souza   +4 more
doaj   +1 more source

Characteristics and propierties of oil-well cements additioned with blast furnace slag

open access: yesMateriales de Construccion, 2011
The present paper addresses the alkali activation of Portland cements containing blast furnace slag (20 and 30% of the cement by weight) with a view to the possible use of these materials in oil well construction.
R. Sánchez, M. Palacios, F. Puertas
doaj   +1 more source

Effect of Fly Ash Belite Cement on Hydration Performance of Portland Cement

open access: yesCrystals, 2021
Fly ash belite cement is a green, low carbon cementitious material, mainly composed of hydraulic minerals of dicalcium silicate and calcium aluminate.
Yongfan Gong   +3 more
doaj   +1 more source

Bentonite hydration effects on the engineering properties of a cement - sodium silicate slurry

open access: yesCase Studies in Construction Materials
Because of the advantages of good fluidity, short gelation time and high compressive strength, cement - sodium silicate slurry is widely used in shield engineering.
Shengwei Wang, Yangjian Li, Bangbang Lu
doaj   +1 more source

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

open access: yesJournal 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   +4 more
doaj  

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

open access: yesMATEC 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   +2 more
doaj   +1 more source

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

open access: yesJournal 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

Interaction Mechanism of Cementitious Composites Containing Different Twisted PVA Fiber Bundles

open access: yesBuildings, 2023
Fiber-reinforced cementitious composites (FRCCs) have made significant progress in improving the tensile and flexural properties of concrete members. Studies have shown that polyvinyl alcohol (PVA) fibers can effectively enhance the toughness of FRCCs ...
Hongmei Zhang   +5 more
doaj   +1 more source

Tricalcium silicate-based cements: properties and modifications [PDF]

open access: yesBrazilian Oral Research, 2018
Mineral trioxide aggregate (MTA) has been widely used for different reparative procedures in endodontics. The extensive use of this cement for pulp capping, apexifications, apical surgeries, and revascularization is related to its ability to induce tissue repair and to stimulate mineralization.
Duarte, Marco Antonio Hungaro   +5 more
openaire   +7 more sources

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

open access: yesRestorative 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   +3 more
doaj   +1 more source

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