Results 61 to 70 of about 4,051 (214)

Effects of Lysinibacillus sphaericus on Physicomechanical and Chemical Performance of OPC Blended with Natural Tuff and Pulverized Fly Ash

Advances in Materials Science and Engineering, 2022
This paper reports study findings on the use of Lysinibacillus sphaericus (at 1.0 × 107 cells/ml concentration) to enhance and improve the physicomechanical and chemical properties of blended Ordinary Portland Cement (OPC).
Kelvin Mwangi Wanjiku, Jackson Wachira Muthengia, Joanne Ogunah, Daniel Karanja Mutitu, John Kinuthia, Romano Mwirichia, Joseph Karanja Thiong’o, Munyao Onesmus Mulwa, Muriithi Genson, Peter Waithaka, David Musyoki Munyao   +10 more
doaj   +1 more source

Assessment of the mechanical and durability characteristics of bio-mineralized Bacillus subtilis self-healing concrete blended with hydrated lime and brick powder

Case Studies in Construction Materials, 2023
Cement is the main constituent of the concrete structure. Using rejected brick as pozzolana in replacement of cement reduced the utilization of natural resources, conserved the environment, and controlled waste disposal.
Mohd Abu Bakr, Birendra Kumar Singh, Ahmed Farouk Deifalla, Shatrudhan Pandey, Ahmed Hussain, Adham E. Ragab, Sahir Sultan Alvi, S.M.Mozammil Hasnain   +7 more
doaj   +1 more source

Toward Zero Waste Mining: Circular Economy of Copper Slags

Global Challenges, Volume 9, Issue 12, December 2025.
Mining and metal extraction processes generate over 90% of global waste. With the rapid increase in population and urbanization, the demand for geotechnical applications and construction materials constantly increases and can absorb the entire quantity of slags generated.
Aleksandar Mitrašinović, Željko Kamberović, Dawei Yu   +2 more
wiley   +1 more source

Durability Assessment of Green Concrete Incorporating Volcanic Tuff Pozzolan, Basalt, and Recycled Aggregate

ARO-The Scientific Journal of Koya University
Extending the lifespan of building structures is a critical strategy for mitigating environmental impacts, particularly greenhouse gas emissions from cement production, like emissions from cement.
Moustafa A. Wassouf, Jamal Y. Omran, Ali I. Kheirbek   +2 more
doaj   +1 more source

Laboratory test for EPB tunnelling assessment:results of test campaign on two different granular soils [PDF]

, 2011
Earth Pressure Balanced shields are currently the most utilized tunnelling machines throughout around the world. The possibility of using conditioning agents that change the mechanical and hydraulic behaviour of a soil, changing it into a plastic paste ...
Borio, Luca, Peila, Daniele
core  

Understanding plaster production in Palaepaphos–Hadjiabdoullah, Cyprus, during the Cypro‐Classical period

Archaeometry, Volume 67, Issue 6, Page 1437-1452, December 2025.
Abstract This article discusses the results of analytical work on wall and floor plaster from a secular monument excavated on the plateau of Palaepaphos–Hadjiabdoullah (Cyprus). Excavated within the frame of the Palaepaphos Urban Landscape Project (PULP), funded by the University of Cyprus since 2006, the monument is an extensive multifunction workshop
Marta Lorenzon, Maria Iacovou
wiley   +1 more source

Understanding of alkali–silica reaction in lime‐pozzolana mortar incorporating pumice and borosilicate

Journal of the American Ceramic Society, Volume 108, Issue 12, December 2025.
Abstract To assess the efficacy of lime‐calcined clay binder in mitigating alkali–silica reaction (ASR) deterioration, this study identifies potential reaction product formation mechanisms in 2‐year‐old alkaline solution‐exposed mortar bars using X‐ray diffraction, micro‐computed tomography, scanning electron microscopy, and evaluates their influence ...
Adhora Tahsin, Ishrat Baki Borno, Taehwan Kim, Warda Ashraf   +3 more
wiley   +1 more source

Assessment of the optimal level of basalt pozzolana blended cement replacement against concrete performance

Journal of Engineering and Applied Science, 2021
Different additional cementitious materials can be used to partially replace cement in concrete. these are used in concrete as a partial replacement for cement to reduce the effect of environmental pollution, which can lead to serious health issues ...
Mohamed S. Moawad, Shimaa Younis, Abd EL- Rahman Ragab   +2 more
doaj   +1 more source

An Experimental Study on Portland Pozzolana Cement Mixed with Natural Hydrocolloids

Journal of Applied Engineering Sciences
Abstract To make a structure sturdier, the construction materials must be of higher quality. To enhance the structural qualities of fresh concrete, or improve the properties of hardened concrete, additives are added to concrete during the mixing process.
B. Naresh Kumar, C. Anbalagan
openaire   +1 more source

Preparatory Phase of Major Earthquakes During Campi Flegrei Unrest (2020–2024)

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract The ongoing unrest at Campi Flegrei is posing significant challenges for hazard assessment and risk mitigation. This densely populated region has experienced more than 20,000 shallow earthquakes since 2020, driven by hydrothermal fluid accumulation beneath a mechanically strong caprock.
A. G. Iaccarino, M. Picozzi, G. De Landro, D. Spallarossa   +3 more
wiley   +1 more source