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Seyedsaleh Mousavinezhad, Judit M. Garcia, William K. Toledo and Craig M. Newtson
For several decades, class F fly ash has been an attractive supplementary cementitious material, at least in part, due to its ability to reduce Portland cement consumption and mitigate alkali-silica reactions in concrete. However, fly ash availability is...
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Daniel Mulat Nega, Begashaw Worku Yifru, Woubishet Zewdu Taffese, Yalew Kassa Ayele and Mitiku Damtie Yehualaw
The purpose of this study is to examine the effects of partially replacing cement with a blend of marble waste powder (MWP) and granite waste powder (GWP) in mortar, with the goal of reducing the environmental harm caused by cement. The investigation inc...
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Natividad Garcia-Troncoso, Bowen Xu and Wilhenn Probst-Pesantez
Recycling of construction and demolition waste is a central point of discussion throughout the world. The application of recycled concrete as partial replacement of mineral aggregates in concrete mixes is one of the alternatives in the reduction of pollu...
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Roseline Prisca Aba, Richard Mugani, Abdessamad Hejjaj, Nelly Brugerolle de Fraissinette, Brahim Oudra, Naaila Ouazzani, Alexandre Campos, Vitor Vasconcelos, Pedro N. Carvalho and Laila Mandi
Cyanobacteria blooms occur frequently in freshwaters around the world. Some can produce and release toxic compounds called cyanotoxins, which represent a danger to both the environment and human health. Microcystin-LR (MC-LR) is the most toxic variant re...
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Esperanza Menéndez, Miguel Ángel Sanjuán, Ricardo García-Roves, Cristina Argiz and Hairon Recino
In this paper, the idea of the sustainability of durable solutions is very much present. The effect of four pozzolanic materials employed in four percentages in mortars made with two different reactive aggregates is assessed regarding alkali-silica react...
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Matthew S. Sullivan, Mi G. Chorzepa, Hiwa Hamid, Stephan A. Durham and S. Sonny Kim
Metakaolin is the only major natural pozzolan to be specified for use as a supplementary cementitious material in the United States. As a result, the metakaolin market for concrete has grown dramatically in the past 20 years. As of now, the specification...
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Bárbara Belén Raggiotti, María Josefina Positieri, Francisco Locati, Juan Murra, Silvina Marfil
Pág. 14 - 20
Nowadays, concrete is one of the most widely used constructionmaterials due to its low price, appropriate mechanic characteristicsand durability. Also, due to its ease to adopt diverse forms and sizes(Najimi et al., 2012). Owing to the importance in the ...
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Diana M. Burgos, Luisa M. Cardona, Silvio Delvasto
Pág. Page 159 - 174
This study presents the results of characterization and evaluation of pozzolanic activity of two Colombian volcanic materials from different sources (Puracé volcano and the snowy of Tolima). These materials were analyzed by scanning electron microscope, ...
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Hanifi Binici, Orhan Aksogan, Ismail H. Cagatay, Mustafa Tokyay and Engin
Pág. 140 - 147
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Carlos Aguilar, María Pía Muñoz, Oscar Loyola
Pág. Page 35 - 44
The present research analyzed the properties of concretes made with Portland Pozzolan cement and recycled aggregate obtained of demolished concretesto be propused as an alternative to a potential lack of aggregate natural in urban areas. An experimental ...
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