Results 51 to 60 of about 588,723 (351)

The comparison between sulfate salt weathering of portland cement paste and calcium sulfoaluminate cement paste [PDF]

open access: yes, 2015
In this paper, the damage performances of sulfate salt weathering of Portland cement paste and calcium sulfoaluminate (CSA) cement paste were compared according to authors' previous studies.
De Schutter, Geert   +2 more
core  

BRE‐X Emissions Database for End‐of‐Life Scenarios of Selective Building Construction Materials to Enable Circular Economy in Construction

open access: yesJournal of Advanced Manufacturing and Processing, EarlyView.
ABSTRACT In the United States, construction and demolition debris predominately end up in landfills with minimal end‐of‐life Re‐X (recover, recycle, reuse, etc.) scenarios, resulting in large environmental impacts and lost opportunities for material recovery.
Naveen Kumar Muthumanickam   +7 more
wiley   +1 more source

Solidification/Stabilization of Lead Contaminated Soil Using Magnesia Phosphate cement and Ordinary Portland cement

open access: yesMuhandisī-i Bihdāsht-i Muḥīṭ, 2021
Background and objectives: Solidification/stabilization is an effective technique for reducing the leachability of contaminants in soils. Magnesia phosphate cement and ordinary Portland cement can be used to remediate soils contaminated.
Mohamad Javad Zoqi, Mohamad Reza Doosti
doaj  

Multi-scale simulation of capillary pores and gel pores in Portland cement paste [PDF]

open access: yes, 2015
The microstructures of Portland cement paste (water to cement ratio is 0.4, curing time is from 1 day to 28 days) are simulated based on the numerical cement hydration model, HUMOSTRUC3D (van Breugel, 1991; Koenders, 1997; Ye, 2003).
Gao, Peng   +3 more
core  

Compatibility Between HPEG Type PCEs With Various Anionic Charge Densities and Portland Cements With Different C3A Contents

open access: yesJournal of Applied Polymer Science, EarlyView.
Evaluation of the compatibility between PCEs possessing varying anionic charge densities and Portland cements with different C3A contents. ABSTRACT This study focused on the compatibility of phosphate and sulfonate‐substituted polycarboxylate ether‐based water‐reducing admixtures (PCE) exhibiting different anionic charge densities with Portland cements
Kemal Karakuzu   +4 more
wiley   +1 more source

Carbon emissions associated with two types of foundations: CP-II Portland cement-based composite vs. geopolymer concrete

open access: yesMatéria, 2019
The cement industry is the second-largest single industrial emitter in the world and therefore has an important role to play in reducing the intensity of its carbon emissions: participation of the sector is important to contribute to the goal of the ...
K. C. Gomes   +5 more
semanticscholar   +1 more source

Physical evaluation of a new pulp capping material developed from portland cement [PDF]

open access: yes, 2016
Background: This study examined the effects of addition of 10% and 25% by weight calcium hydroxide on the physicochemical properties of Portland cement associated with 20% bismuth oxide in order to develop a new pulp capping material.
Abu-Seida, Ashraf   +3 more
core   +2 more sources

The Domus Nozze D'Argento in Pompeii: Structural Diagnosis Using Geophysical Methods

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT Monitoring of ancient buildings is an issue of great interest in view of a proper restoration. This paper describes the noninvasive monitoring of the Domus Nozze D'Argento in Pompeii. The Roman house, as occurred for many other buildings in Pompei, was buried in the ash from the 79 ad eruption of Mount Vesuvius.
Nicola Masini   +4 more
wiley   +1 more source

Influence of cement type and admixtures on rheological properties of cement paste / Cheminių įmaišų poveikis reologinėms cemento tešlos savybėms

open access: yesEngineering Structures and Technologies, 2014
The article aims to research the influence of the chemical admixtures on the rheological properties of Portland cement paste and determine their impact on the effectiveness of hydration induction period. Materials used in the study: Portland cement CEM I
Mindaugas Macijauskas, Albinas Gailius
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

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