Results 51 to 60 of about 397 (162)

Development of Ambient‐Cured Geopolymer Concrete: Investigating Bottom Ash as a Sustainable Alternative to Natural River Sand

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
Portland cement production is a major contributor to global CO2 emissions, and the scarcity of natural river sand limits conventional concrete production. Despite increasing interest in geopolymer concrete (GPC), studies on sustainable, low‐temperature cured GPC using industrial by‐products as fine aggregate replacements are limited.
Lemma Beressa Gudeta, Zerihun Mamo Asamenew, Zewdu Sileshi Akalu, Mohammad Rezwan Habib   +3 more
wiley   +1 more source

Systematic Review of the Improvement of the Mechanical Properties of Concrete With Agave Fibers and Biochar

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
The construction sector faces the urgent challenge of reducing the environmental impact associated with cement production. In response, biodegradable materials such as agave fibers and biochar have attracted growing interest as sustainable alternatives for improving concrete performance.
Yazmin O. Linares González, Gustavo Adolfo Alonso Silverio, Ricardo Salazar, Gerardo Altamirano de la Cruz, Sulpicio Sánchez Tizapa, Mohammad Rezwan Habib   +5 more
wiley   +1 more source

Mechanical and Physical Performance of Mortars Incorporating Crushed Hazelnut Shells as Partial Fine Aggregate Replacement

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
This study investigates the mechanical and physical properties of mortars incorporating crushed hazelnut shell (HS) as a partial replacement for fine aggregates. Mortar mixtures were prepared with varying water‐to‐cement (w/c) ratios ranging from 0.35 to 0.50 and HS dosages of 2.5%, 5%, and 7.5% by weight, along with reference mixtures without HS.
Sergio J. Yanez, Leonardo Brescia-Norambuena, Daniela Gutiérrez Canales, Siva Avudaiappan, Juan Carlos Pina, Susana García Vera, Tamara Erazo Ibarra, Mohammad Rezwan Habib   +7 more
wiley   +1 more source

A comparative study of physical and chemical properties of different pozzolanic materials used for roller compacted concrete RCC dams

MATEC Web of Conferences, 2017
This paper addresses the feasibility and the efficiency of using Natural Pozzolan and/or Rock flour in Roller Compacted Concrete (RCC) gravity dams. For this purpose, five identical mortar trial mixes were prepared using five different supplementary ...
Husein Malkawi Abdallah I., Shatnawi Ehab, Husein Malkawi Dima A.   +2 more
doaj   +1 more source

Enhanced Utilization of Coal Ash in Construction: Physicochemical Properties and Compressive Strength of Blended Cement and Geopolymer Mortar

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
The properties of fly and bottom ashes produced by Morupule power stations in Botswana are analysed for their pozzolanicity. Furthermore, the influence of physical, chemical and microstructural properties of the ashes on the performance of compressive strength of fly ash–based blended cement and geopolymer mortar was evaluated.
Damilola O. Oyejobi, Ali A. Firoozi, Adekunle P. Adewuyi, Njideka M. Aguome, Rajashik Paul   +4 more
wiley   +1 more source

New Building Envelope Materials for Energy Saving and Sustainability

Journal of Engineering, Volume 2026, Issue 1, 2026.
The hygrothermal performance of building envelopes critically influences indoor comfort and energy demand, especially in warm climates where air conditioning represents a major energy use. This study evaluates a composite earth‐based brick incorporating crushed limestone aggregates, lightly stabilized with 8% cement and optimized for Mediterranean ...
Amel Soukaina Cherif, Sondes Skander-Mustapha, Ilhem Slama-Belkhodja, Shikha Binwal   +3 more
wiley   +1 more source

Effect of harsh environment on cement mortar containing natural pozzolans

Case Studies in Construction Materials
This investigation aims to study the effect of the harsh environment on cement mortar containing pumice powder (natural pozzolana) as a partial substitute for ordinary Portland cement (OPC).
Abdullah M. Zeyad
doaj   +1 more source

Mechanical Performance of Black Cotton Soil Stabilised With Bagasse Ash Incorporating Limestone Calcined Clay Cement Under Varied Loading Conditions

Journal of Engineering, Volume 2026, Issue 1, 2026.
Construction of geotechnical infrastructures in tropical regions characterised by black cotton soil (BCS) presents major engineering challenges due to its high swelling and shrinkage potential. Bagasse ash (BA) incorporating limestone calcined clay cement (LC3) has emerged as a promising stabilisation approach to enhance the performance of foundations ...
Horris K. Nangulama, Siya P. Rimoy, John Elvis, Shikha Binwal   +3 more
wiley   +1 more source

Low‐Carbon Concrete Systems: A Comparative Review of Binder Technologies and Alternative Materials

Journal of Engineering, Volume 2026, Issue 1, 2026.
About 8% of the world′s carbon dioxide emissions come from the production of concrete, mostly from the clinker used to make regular Portland cement. By comparing supplementary cementitious materials (SCMs), alkali‐activated materials (AAMs), alternative aggregates, and waste‐derived elements using a shared carbon‐performance paradigm, this review ...
Majid Naeem Hammood, Mohamed Ibrahim Abu-Mahadi, Paschal Chimeremeze Chiadighikaobi, Nadezhda A. Stashevskaya, Blossom Chinazor Ubani-Wokoma, Swastik Pradhan   +5 more
wiley   +1 more source

Stone‐Cutting Dust as a Sustainable Supplementary Cementitious Material: A Comprehensive Review of Its Physicochemical and Mechanical Effects

Journal of Chemistry, Volume 2026, Issue 1, 2026.
Ordinary Portland cement (OPC) remains the most common binder used in construction and accounts for nearly 7%‐8% of the world’s CO2 emissions due to calcination of limestone and high energy use during clinker production. Reducing OPC content using SCMs is one of the major strategies to achieve sustainable construction.
Nancy Mweni Paul, Jackson Wachira Muthengia, Genson Murithi, Joanne Ogunah, Esther Wanja Nthiga, Catherine Rwamba Githuku, Moses Onyango Opiyo, Reginah Wangui Ngari, David Munyao Musyoki, Munmun Bardhan   +9 more
wiley   +1 more source