Results 11 to 20 of about 437,898 (327)
Ultrafine portland cement performance
Materiales de Construccion, 2018 By mixing several binder materials and additions with different degrees of fineness, the packing density of the final product may be improved. In this work, ultrafine cement and silica fume mixes were studied to optimize the properties of cement-based ...
C. Argiz, E. Reyes, A. Moragues
doaj +4 more sources
The Rise of Portland Cements [PDF]
Elements, 2022 This chapter tells the story of Portland cement, from its invention in the 19th century until its present-day hegemony as the number one manufactured mineral product. The success story of Portland cement is rooted in the unique combination of the abundance of its raw materials, the reactivity of the high-temperature clinker product toward water, and ...
Scrivener, Karen L., Snellings, Ruben
openaire +2 more sources
Hydration and Fractal Analysis on Low-Heat Portland Cement Pastes Using Thermodynamics-Based Methods
Fractal and Fractional, 2023 Low-heat Portland (LHP) cement is a kind of high-belite cement, which has the characteristic of low hydration heat. Currently, it is extensively used in the temperature control of mass concrete. Based on the thermodynamic database of OPC-based materials,
Yifan Zhou +9 more
semanticscholar +1 more source
Applied Sciences, 2022 Failures of tailings dams, primarily due to liquefaction, have occurred in Brazil in recent years. These events have prompted the Brazilian government to place restrictions on the construction of new dams, as iron ore tailings deposited behind upstream ...
N. Consoli +6 more
semanticscholar +1 more source
Fractal and Fractional, 2021 In cement-based materials, alkalis mainly exist in the form of different alkali sulfates. In this study, the impacts of different alkali sulfates on the shrinkage, hydration, pore structure, fractal dimension and microstructure of low-heat Portland ...
Li Yang +6 more
semanticscholar +1 more source
Structural Performance of Laterite soil Stabilised with Cement and Blue Gum (Eucalyptus Globulus) Wood Ash for Use as a Road base Material [PDF]
International Journal of Engineering Trends and Technology,
69(9),257-264, September 2021, 2021 This study examines the effect of partially replacing cement with blue gumwood ash (BGWA) in stabilizing laterite soil to be used as a potential road base material. Initially, Ordinary Portland Cement was introduced to the soil at varying contents from 0 to 12% in steps of 3% by weight of the soil sample.
arxiv +1 more source
Buildings, 2022 The article presents research of the influence of the electromagnetic vortex layer on the structure formation of cement stone during the activation of portland cement, both without additives and with carbon nanotubes modification.
Ibragimov Ruslan +4 more
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Autogenous self‐healing of concrete: Experimental design and test methodsA review
Engineering Reports, Volume 5, Issue 1, January 2023., 2023 Concrete exhibits an intrinsic ability to heal cracks, defined as “autogenous self‐healing.” However, despite code restrictions, autogenous self‐healing of concrete shows limited effectiveness in practice. This indicates the need for further research to provide engineers with reliable design rules.
Daniel Lahmann +2 more
wiley +1 more source
Earth Surface Processes and Landforms, Volume 47, Issue 15, Page 3453-3464, December 2022., 2022 We evaluate the biogeomorphological impacts of seaweed on materials commonly used in maritime built heritage restoration. After 6 months of exposure to intertidal conditions, we found no evidence of enhanced deterioration of mortar prepared using natural cement when covered with seaweed compared to uncovered mortar.
Timothy Baxter +2 more
wiley +1 more source
Recent Advances in Magnesia Blended Cement Studies for Geotechnical Well Construction—A Review
Frontiers in Materials, 2021 The current paper presents a literature review on the studies of incorporation of magnesia (magnesium oxide) into Portland cement material from the geotechnical well construction perspective.
Weiqing Chen +3 more
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