Results 11 to 20 of about 13,771 (226)

Clays for Low-Carbon Cements: Overview, Progress, and Challenges. [PDF]

Glob Chall
This review provides a critical overview of recent developments of activated clays to function as artificial pozzolans. After a thorough description of the clays that yield good pozzolanic performances, selected examples are given on thermal and mechanical activations. Chiefly, general correlations are extracted from reported data despite its scattered
Koufany I, Santacruz I, De la Torre AG, Rodríguez-Ruiz MD, Aranda MAG.   +4 more
europepmc   +2 more sources

Low-cost Packing Materials in an Aerated Biofilter for Lagoon Effluent Treatment [PDF]

Kemija u Industriji, 2022
As part of a comprehensive evaluation of post-treatment techniques for the removal of chemical and microbiological pollutants from lagoon effluents, an aerated biofilter was designed.
Malika Khelladi, Meriem Abaidia, Senouci Boulerial, Khalida Bekrentchir, Abdellah Benhamou, Abdelkader Debab   +5 more
doaj   +1 more source

Conception of eco-friendly cement based on natural pozzolan to improve rheological behavior of concrete

Journal of Building Materials and Structures, 2020
The pozzolan of Beni- Saf region (North-West Algeria) is a natural material of volcanic origin with an ability to react with lime in the presence of water and to form compounds with binding properties.
Sabria Malika Mansour, Youcef Ghernouti
doaj   +1 more source

Pengendalian Persediaan Pozzolan di PT Semen Padang

Jurnal Optimasi Sistem Industri, 2016
Inventory of raw materials is the most important thing to produce the product. Inventory control of the raw materials quantityalso refers to the production process at the factory.
Prima Fithri, Annise Sindikia
doaj   +1 more source

Zeolita, estudio de aptitud como una puzolana natural aplicada a hormigón estructural [PDF]

, 2015
Nowadays, concrete is one of the most widely used construction materials due to its low price, appropriate mechanic characteristics and durability. Also, due to its ease to adopt diverse forms and sizes (Najimi et al., 2012).
Locati, Francisco, Marfil, Silvina Andrea, Murra, Juan Alberto Félix, Positieri, María Josefina, Raggiotti, Barbara Belen   +4 more
core   +2 more sources

Effects of FeNi3 Nanoparticles and Coal Slag on Mechanical and Durability Properties of Concrete against Acidic Environments

Advances in Civil Engineering, 2023
In recent years, natural pozzolans have been proposed as a way to improve the mechanical and biocompatible properties of concrete. This study investigated the effects of different amounts of nanoparticles, coal slag pozzolan, and their combination on the
Hossein Rezayt Khargerdi, Seyed Mojtaba Movahedifar, Alireza Motavalizadehkakhky, Amin Honarbakhsh, Rahele Zhiani   +4 more
doaj   +1 more source

Study of Geopolymer Composites Based on Volcanic Ash, Fly Ash, Pozzolan, Metakaolin and Mining Tailing

Buildings, 2022
This work studies the feasibility to employ a combination of volcanic ash (natural waste) with different raw materials in the production of geopolymers: fly ash and mining tailing (considered hazardous solid waste), natural pozzolan, and metakaolin. This
Rossibel Churata, Jonathan Almirón, María Vargas, Danny Tupayachy-Quispe, Jeniffer Torres-Almirón, Yosheff Ortiz-Valdivia, Francisco Velasco   +6 more
doaj   +1 more source

Pozzolans: A review

Engineering and Applied Science Research, 2022
Engineering and Applied Science Research, 49, 4, 495 ...
Jhonatan A. Becerra-Duitama, Diana Rojas-Avellaneda   +1 more
openaire   +2 more sources

Thermal characteristics study of light aggregate concrete of the middle Atlas pozzolana

MATEC Web of Conferences, 2018
We present in this work an experimental study of the thermomechanical characterization of pozzolan (volcanic rock widespread in the region of Azrou in the Middle Atlas in Morocco).
Bouyahyaoui A., Cherkaoui M., Abidi My L., Cherradi T.   +3 more
doaj   +2 more sources

Durability of Different UHPFRCs, Made from Pozzolan as a Substitute for Portland Cement and Immersed in Two Aggressive Environments of Hydrochloric and Sulfuric Acids

Selected Scientific Papers: Journal of Civil Engineering, 2022
The objective of this study is to evaluate the effect of pozzolan on the durability of high-performance fiber concretes in two aggressive environments. For this, prismatic test pieces were made at (0%, 10%, 20%, and 40%) of pozzolan and immersed in two ...
Medjber Farida Ait, Saidi Mohammed, Safi Brahim   +2 more
doaj   +1 more source