Results 91 to 100 of about 43,789 (206)

A Study on Ordinary Portland Cement Blended with Rice Husk Ash and Metakaolin [PDF]

open access: yes, 2020
. This paper tries to investigate the effect of replacing Ordinary Portland cement (OPC) with Metakaolin (MK) and Rice husk ash (RHA) on the physicomechanical properties such as consistency, setting times, soundness and mortar compressive strength of ...
Ayeni, Sholaremi   +4 more
core   +2 more sources

Interaction of dispersed polyvynil acetate with silicate in finishing materials

open access: yesMateriales de Construccion, 1996
This article focuses on the processes of interaction between calcium silicate hydrates and dispersed polyvinyl acetate in tight films with the aim of developing compounds meant for restoration and finishing works.
R. F. Runova, A. A. Maistrenko
doaj   +1 more source

Effect of CaCO3 nanoparticles on the microstructure and fracture toughness of ceramic nanocomposites

open access: yesJournal of Taibah University for Science, 2020
This study investigated the effect of using calcium carbonate (CaCO3) nanoparticles on the microstructural properties, flexural strength and fracture toughness of ceramic nanomaterials.
A. Hakamy
doaj   +1 more source

Carbonation of Portland Cement Studied by Diffuse Reflection Fourier Transform Infrared Spectroscopy [PDF]

open access: yes, 2013
Carbonation is a natural ageing process for cement. This study focuses on how the carbonation rate varies with selected hydration times and atmospheric conditions during the early stages of reacting dried cement paste.
Rikard Ylmén, Ulf Jäglid
core   +1 more source

Diametral tensile strength of novel fast-setting calcium silicate cement

open access: yesDental Materials Journal, 2016
Novel fast-setting calcium silicate cement with fluoride (CSC) has been developed for potential applications in tooth crown. The aim of this study was to test the diametral tensile strength (DTS) of different CSC compositions in humid condition on day1, 28, and 180.
Ranjkesh, Bahram   +3 more
openaire   +4 more sources

Phase formation and carbonation impact on the strength of alkali-activated demolition waste with calcium compounds

open access: yesCase Studies in Construction Materials
The present study evaluates the impact of calcium compounds on the reaction kinetics of alkali-activated construction demolition waste. Two materials, concrete and brick demolition waste, were milled to powders and supplemented with either carbonated ...
Isabelle Wichmann, Dietmar Stephan
doaj   +1 more source

Resistance of Modified Hardened Cement Paste to Frost and De-Icing Salts

open access: yesThe Baltic Journal of Road and Bridge Engineering, 2012
Concrete is widely used in the structures of bridges, flyovers, sidewalks and carriageways that are exposed to freeze-thaw cycles in wet conditions and are treated with de-icing salts.
Gintautas Skripkiūnas   +3 more
doaj   +1 more source

Anti-inflammation performance of curcumin-loaded mesoporous calcium silicate cement

open access: yesJournal of the Formosan Medical Association, 2017
Calcium silicate (CS) cements have excellent bioactivity and can induce the bone-like apatite formation. They are good biomaterials for bone tissue engineering and bone regenerative medicine. However, they have degradability and the dissolved CS can cause the inflammatory response at the early post-implantation stage.
Yuan-Chien Chen   +5 more
openaire   +3 more sources

The use of Bioceramics as root-end filling materials in periradicular surgery: a literature review [PDF]

open access: yes, 2018
Introduction: Periradicular surgery involves the placement of a root-end filling following root-end resection, to provide an apical seal to the root canal system. Historically several materials have been used in order to achieve this seal.
Abusrewil, Sumaya M.   +2 more
core   +1 more source

Calcium silicate-based cements and functional impacts of various constituents

open access: yesDental Materials Journal, 2017
Calcium silicate-based cements have superior sealing ability, bioactivity, and marginal adaptation, which make them suitable for different dental treatment applications. However, they exhibit some drawbacks such as long setting time and poor handling characteristics.
Mohammad Ali, Saghiri   +6 more
openaire   +3 more sources

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