Results 91 to 100 of about 567,772 (379)

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

Theory of Sorption Hysteresis in Nanoporous Solids: II. Molecular condensation [PDF]

open access: yes, 2011
Motivated by the puzzle of sorption hysteresis in Portland cement concrete or cement paste, we develop in Part II of this study a general theory of vapor sorption and desorption from nanoporous solids, which attributes hysteresis to hindered molecular condensation with attractive lateral interactions. The classical mean-field theory of van der Waals is
arxiv   +1 more source

An Integrated Experimental-Numerical Study of the Performance of Lime-Based Mortars in Masonry Piers Under Eccentric Loading [PDF]

open access: yesConstruction and Building Materials 114, 913--926, (2016), 2015
Architectural conservation and repair are becoming increasingly important issues in many countries due to numerous prior improper interventions, including the use of inappropriate repair materials over time. As a result, the composition of repair masonry mortars is now being more frequently addressed in mortar research.
arxiv   +1 more source

Experimental tests and FE simulations to compute the mechanical and fracture properties of the shot‐earth 772

open access: yesFatigue &Fracture of Engineering Materials &Structures, Volume 46, Issue 1, Page 49-62, January 2023., 2023
Abstract The present paper is dedicated to the mechanical and fracture characterization of a specific earthen material, that is, the shot‐earth 772. Although such a material has been recently characterized from a microstructural, chemical and physical point of view, the knowledge of its mechanical and fracture properties (essential for extending its ...
Sabrina Vantadori   +3 more
wiley   +1 more source

Utilization of Iron Ore Tailings as Raw Material for Portland Cement Clinker Production

open access: yesAdvances in Materials Science and Engineering, 2016
The cement industry has for some time been seeking alternative raw material for the Portland cement clinker production. The aim of this research was to investigate the possibility of utilizing iron ore tailings (IOT) to replace clay as alumina-silicate ...
Li Luo   +3 more
doaj   +1 more source

Research of Frost Resistance of Tuff-Containing Portland Cement [PDF]

open access: yesE3S Web of Conferences
Results of a study of frost resistance up to 150 cycles of freezing and thawing of Portland cement and pozzolanic Portland cements obtained on the basis of these Portland cement clinkers with various dosages burnt tuffite, gliège , showed that up to 30 ...
Kabulova Lola, Orazimbetova Gulistan
doaj   +1 more source

Sustainable LC3 Concrete in the Circular Economy: Assessment of Mechanical, Microstructural, and Durability Characteristics with Surkhi, Metakaolin, Nano‐Silica, and M‐Sand Blended Concrete

open access: yesGlobal Challenges, EarlyView.
Eco‐Friendly LC3 Concrete – Enhanced with surkhi, nano‐silica, and M‐sand. Performance Boost – Improved strength, durability, and microstructure. Sustainability Impact – Lower emissions and circular economy benefits. Abstract Researchers are increasingly focused on eco‐friendly concrete with reduced carbon footprints.
Badrinarayan Rath   +4 more
wiley   +1 more source

Thermal conductivity of several geopolymer composites and discussion of their formulation

open access: yesInternational Journal of Applied Ceramic Technology, Volume 20, Issue 1, Page 475-486, January/February 2023., 2023
Abstract We fabricated 50.8‐mm cube‐shaped samples of metakaolin geopolymer (GP) composites with various additives chosen to increase or decrease the thermal conductivity of the composite. Sodium‐based GP (NaGP) and GP composites were more conductive than potassium‐based GP (KGP) composites for a given phase fraction of filler, but the maximum amount ...
Devon M. Samuel   +3 more
wiley   +1 more source

Analyses of microstructural properties of VA/VeoVA copolymer modified cement pastes

open access: yesPolímeros, 2005
Recently, modern techniques have been applied for analysis of the influence of polymers on microstructural properties of Portland cement, such as Thermogravimetric Analyses (TG), Scanning Electronic Microscopy (SEM), Fourier Transform Infrared ...
Carlos Eduardo M. Gomes   +1 more
doaj   +1 more source

A review of the methods used to study biocompatibility of Portland cement-derived materials used in dentistry [PDF]

open access: yes, 2006
Advanced restorative dentistry may necessitate the need for surgical intervention to the infected root apex. Once access to the root end is achieved, the root apex is resected and filled with a dental restorative material.
Camilleri, Josette
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