Results 141 to 150 of about 3,478 (197)
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Engineering for Rural Development
The construction industry is a major contributor to environmental degradation due to the widespread use of traditional building materials such as cement.
M. Wassouf, J. Omran, A. Kheirbek
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The construction industry is a major contributor to environmental degradation due to the widespread use of traditional building materials such as cement.
M. Wassouf, J. Omran, A. Kheirbek
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Osservazioni petrografiche su di una pozzolana del Vesuvio (“pozzolana di fuoco„)
Bulletin Volcanologique, 1930L’auteur decrit la composition mineralogique et petrographique d’une pouzzolane du Vesuve, laquelle est formee de debris de roches du Somma-Vesuve et de scories de laves legerement cimentees par de la cendre extremement fine.
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The mechanism of the hydration in the system C3S-pozzolana
Cement and Concrete Research, 1980Abstract A mixture of five kinds of Japanese pozzolanas and synthesized pure C 3 S were hydrated. The hydration mechanism in the system C 3 S-pozzolana was investigated. The hydration of C 3 S was accelerated by the addition of pozzolanas. The reasons for the acceleration increase of the precipitation sites of hydrates and the increase of the ...
K. Ogawa +3 more
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Hygric Properties of HPC with Natural Pozzolana
Key Engineering Materials, 2016The water vapour transport and the liquid water transport of high performance concrete (HPC) with the content of natural pozzolana are the described in this paper. Studied properties are presented by means of water vapour diffusion coefficient, water vapour diffusion resistance factor and absorption coefficient respectively. The natural pozzolana (NP),
Jaroslava Koťátková +3 more
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Fullerenes, nanotubes, and carbon nanostructures
The present study examines the regulatory role of natural pozzolana (NP) on the early-age hydration process and microstructural development of Portland cement.
Li-Yun Yi, Dan Yang, Ju-Hong Chen
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The present study examines the regulatory role of natural pozzolana (NP) on the early-age hydration process and microstructural development of Portland cement.
Li-Yun Yi, Dan Yang, Ju-Hong Chen
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Lime mortar with natural pozzolana
2008The paper deals with the investigation of the mechanical behavior of lime mortar enriched with natural pozzolana, widely used in historical masonry. The study aims to investigate the mechanical behavior of natural pozzolana lime mortars, reproduced in laboratory by using different mix designs, as reported in historical Italian architectural treatises ...
SALA, Elisa +2 more
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Fullerenes, nanotubes, and carbon nanostructures
In the present investigation, a comparison of Graphene Oxide (GO) and Functionalized Multiwalled Carbon Nanotubes (FMWCNTs) incorporated in Pozzolana Portland Cement (PPC) mortar was carried out to find their influence on mechanical and durability ...
Kanchna Bhatrola, N. C. Kothiyal
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In the present investigation, a comparison of Graphene Oxide (GO) and Functionalized Multiwalled Carbon Nanotubes (FMWCNTs) incorporated in Pozzolana Portland Cement (PPC) mortar was carried out to find their influence on mechanical and durability ...
Kanchna Bhatrola, N. C. Kothiyal
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Strength Characteristics of Bauxite Pozzolana Concrete
Journal of the Construction Division, 1978Bauxite is currently mined in Ghana on a commercial basis. Beneficiation of the ore is undertaken before it is exported and during the beneficiation process significant amount of the ore estimated at between 20% and 25% are washed away as red mud. The red mud is dumped into large ponds where it is left to dry.
Vincent O. Nwoko, Alex A. Hammond
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The effect of pozzolanas on the tricalcium aluminate hydration
Cement and Concrete Research, 1978Abstract The effect of pozzolanas on the C 3 A hydration with and without lime and gypsum was examined. The addition of pozzolana lowers the heat evolution caused by C 3 A hydration. Lime combination with C 3 A and its hydration product is favoured by the addition of pozzolana, with a different mechanism of reaction depending on the presence of ...
Mario Collepardi +3 more
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, 2020
With increasing environmental sustainability concerns in the construction industry and a demand for producing more durable and sustainable concrete, effort is devoted to producing concrete with Ordinary Portland cement (OPC) being substituted by ...
M. Hossain +4 more
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With increasing environmental sustainability concerns in the construction industry and a demand for producing more durable and sustainable concrete, effort is devoted to producing concrete with Ordinary Portland cement (OPC) being substituted by ...
M. Hossain +4 more
semanticscholar +1 more source

