Results 51 to 60 of about 440,118 (241)
Case Studies in Construction Materials, 2022 Phosphogypsum (PG) is a residue from the fertilizer industry used by Portland cement companies as a source of calcium sulfate to control the setting time during the hydration (or hardening process).
Rayara Pinto Costa +5 more
doaj
Engineering 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
Binders alternative to Portland cement and waste management for sustainable construction – Part 2
Journal of Applied Biomaterials & Functional Materials, 2018 The paper represents the “state of the art” on sustainability in construction materials. In Part 1 of the paper, issues related to production, microstructures, chemical nature, engineering properties, and durability of mixtures based on binders ...
L. Coppola +62 more
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Buildings, 2023 The reliability of concrete structures is closely related to the durability of the concrete materials stable under external environmental conditions.
Svetlana V. Samchenko +2 more
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Fresh Cement as a Frictional Non-Brownian Suspension [PDF]
Powder Technology 441 (2024) 119791Cement is an essential construction material due to its ability to flow before later setting, however the rheological properties must be tightly controlled. Despite this, much understanding remains empirical. Using a combination of continuous and oscillatory shear flow, we compare fresh Portland cement suspensions to previous measurements on model non ...
arxiv +1 more source
Preparation of Portland Cement with Gold Ore Tailings
Advances in Materials Science and Engineering, 2019 The disposal of gold ore tailings (GTs) has been a very difficult problem for a long time. Thus, this study explored a new approach to the management of GTs by preparing Portland cement.
Qiang Wang +5 more
semanticscholar +1 more source
Utilization of Iron Ore Tailings as Raw Material for Portland Cement Clinker Production
Advances 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
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Theory of Sorption Hysteresis in Nanoporous Solids: II. Molecular condensation [PDF]
, 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]
Construction 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
Optimal Pre-hydration Age for CO2 Sequestration through Portland Cement Carbonation
ACS Sustainable Chemistry and Engineering, 2018 An emerging technology of CO2 sequestration in Portland cement (PC) is through accelerated carbonation, where PC is intentionally carbonated at early hydration age and reinitiates long-term hydrati...
Duo Zhang, V. Li, B. Ellis
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