Results 41 to 50 of about 375,303 (201)

Achieving sustainable and durable concrete using high‐volume SiO2: Engineering properties, environmental and economic benefits

Structural Concrete, EarlyView.
Abstract This study explores the potential of high‐volume amorphous silica (SiO2) replacement for ordinary Portland cement (OPC) in concrete to reduce carbon emissions. Amorphous SiO2, such as silica fume (SF) and CO2 mineralization‐produced Si‐rich gel, offers superior properties to concrete but is under‐researched for its use in concrete with high ...
Xinlin Ji, Lijie Chen, R. K. L. Su
wiley   +1 more source

Effect of Fineness and Heat Treatment on the Pozzolanic Activity of Natural Volcanic Ash for Its Utilization as Supplementary Cementitious Materials

Crystals, 2022
The aim of this study was to investigate the influence of fineness and heat-treatment on the pozzolanic and engineering properties of volcanic ash. To this end, two different fineness levels of volcanic ash, ultra-fine (VAF) and fine (VA), without and ...
Kaffayatullah Khan, Muhammad Nasir Amin, Muhammad Usman, Muhammad Imran, Majdi Adel Al-Faiad, Faisal I. Shalabi   +5 more
doaj   +1 more source

Mortars From Punic and Hellenistic–Roman Solunto: Materials, Formulations, and Technology

Archaeometry, EarlyView.
ABSTRACT This study presents an archaeometric investigation of 18 hydraulic rendering and bedding mortars from Punic and Hellenistic–Roman Solunto (NW Sicily). The research aimed to characterize raw materials, reconstruct manufacturing sequences, and evaluate technological proficiency through mineralogical and petrochemical analyses.
G. Montana, G. Polizzi, C. Portale, M. Gasparo Morticelli, L. Randazzo   +4 more
wiley   +1 more source

Evaluation of Pozzolanic Reactivity of Artificial Pozzolans [PDF]

, 2013
Materials Science Forum Vols. 730-732 (2013) pp 433-438Pozzolanicity is a very interesting issue regarding building materials, as a way to enhance mortars and concrete durability.
Pontes, Jorge, Santos-Silva, António, Faria, Paulina   +2 more
core  

Effect of cooling method and phase composition on the reactivity of ferrochrome slag as a supplementary cementitious material

Cleaner Engineering and Technology
Ferrochrome slag (FCS), a by-product of ferrochrome production, is a largely underutilized industrial residue with strong potential as a supplementary cementitious material (SCM) to reduce clinker demand and support sustainable construction.
Iyani Muthukuda Arachchige, Jenny Isaksson, Min Chen, Chuan Wang, Fredrik Engström, Anton Andersson   +5 more
doaj   +1 more source

Dissolution, Reconfiguration and Formation: Decarbonisation Effects on Regional Industrial Interpath Dynamics

Tijdschrift voor Economische en Sociale Geografie, EarlyView.
Abstract Decarbonising mature industries is crucial for achieving overall carbon neutrality. This article provides an interpath dynamics perspective on how mature industries' decarbonisation paths affect interconnected industries via three key interpath transformation dynamics: interpath dissolution, reconfiguration and formation.
Marius Angstmann
wiley   +1 more source

Influence of the origin of metakaolin on pozzolanic reactivity of mortars

Energy Procedia, 2017
Abstract Cement is one of the main sources of environmental impacts of concrete use. It is thus recognized that the most pragmatic solution for minimizing environmental impacts of concrete is the reduction of the cement content. This could be achieved by replacing a part of cement with mineral additions such as fly ash, blast-furnace slag or ...
Abdelli, Kamal, Tahlaiti, Mahfoud, Belarbi, Rafik, Oudjit, Mohamed Nadjib   +3 more
openaire   +1 more source

Assessing Distinctive Physiochemical Properties of Geopolymers, Their Green Development and Utilization in Wastewater Treatment

Water and Environment Journal, EarlyView.
This review examines the physicochemical properties of geopolymers, focusing on the effects of calcium content, heavy metal impurities and acid activation. It distinguishes geopolymers from other alkali‐activated materials based on structure and synthesis precursors. Their use as water treatment adsorbents is compared with ceramic filters, highlighting
Kabelo L. Lebogang, Freeman Ntuli, Vepika Kandjou, Tumeletso Lekgoba   +3 more
wiley   +1 more source

Assesssment of pozzolanic/hydraulic reactivity of vitreous calcium aluminosilicate (VCAS) ussing different methods [PDF]

, 2016
[EN] The aim of this paper is to assess the possibility of using vitreous calcium aluminosilicate (VCAS) as a supplementary cementitious material in the production of Portland cement mortars.
Soriano, L., Tashima, M. M. [UNESP], Borrachero, M. V., Monzó Balbuena, José Mª, Monzó, J., Borrachero Rosado, María Victoria, Mitsuuchi Tashima, Mauro, Paya Bernabeu, Jorge Juan, Payá, J., Soriano Martinez, Lourdes, Tashima, M. M.   +10 more
core   +1 more source

Prediction of strength activity index using chemical and physical properties of pozzolans

Cement
Reductions in cement use have essential benefits in reducing the embodied energy in concrete and CO2 emissions. Hence, effective assessment of potential pozzolanic materials is highly desirable to facilitate usage as sustainable supplementary ...
Farzaneh Elyasigorji, Habib Tabatabai
doaj   +1 more source