Results 81 to 90 of about 3,478 (197)

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

Strength, Sulfate Resistance, and Microstructural Characteristics of Concrete With Partial Cement Replacement Using Eggshell Powder and Wheat Straw Ash

Advances in Materials Science and Engineering, Volume 2026, Issue 1, 2026.
This study explores the partial replacement of ordinary Portland cement (OPC) with a composite of eggshell powder (ESP) and wheat straw ash (WSA) in C‐25 concrete, focusing on mechanical performance and durability. Cement was replaced with varying proportions of ESP and WSA, and the concrete mix was prepared following ACI guidelines.
Abdulsemad Jemal Jema, Fikreyesus Demeke Cherkos, Mohammad Rezwan Habib   +2 more
wiley   +1 more source

Contribution of natural pozzolana to durability of high performance concrete in chloride environment

, 2011
This paper presents mechanical and durability properties of natural pozzolana high performance concrete. Concrete’s these properties in a chloride environment improved by replacing 7.5% cement with pozzolana of 9600 cm2/g fineness.
Kharchi, F., Chaid, R., Talah, Aissa
core   +1 more source

Hydration mechanisms in low-clinker composite cement systems

Cement
The hydration mechanism of the low-clinker binders (cement ≤ 45%) incorporating either calcined clay or natural pozzolana together with limestone were investigated in this study.
Aysha Anagreh, Maciej Zajac, Mohsen Ben Haha, Arnaud Muller, Thomas Matschei   +4 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

Effet de la combinaison de la chaux et de la pouzzolane naturelle sur le compactage et la résistance des sols mous argileux Effect of the combination of lime and natural pozzolana on the compaction and strength of soft clayey soils

MATEC Web of Conferences, 2012
La stabilisation des sols mous a été pratiquée longtemps en mélangeant des ajouts, tels que le ciment, la chaux et les cendres volantes au sol pour augmenter sa résistance.
Kenai S., Harichane K., Ghrici M.
doaj   +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

Structural performance of reinforced self-compacting lightweight concrete beams with pozzolana aggregates under elevated temperatures

Case Studies in Construction Materials
Self-compacting lightweight concrete (SCLWC) incorporating natural pozzolana aggregates has attracted increasing attention as a sustainable material due to its reduced self-weight, enhanced workability, and potential resistance to elevated temperatures ...
Mu’tasime Abdel-Jaber, Blqees Mashaqbeh, Ahmad Al-Khreisat, Mousa Shhabat, Ahmed Ashteyat, Laith Daradkh   +5 more
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

Design and Construction of NBRRI Pozzolana Cement Pilot Plant Access Road [PDF]

, 2014
Nigerian Building and Road Research Institute (NBRRI), in trying to solve the menace of housing deficit ravaging the country, established a Pozzolana Cement Pilot Plant at its Laboratory Complex, Ota, Ogun State.
H.A., Quadri,, O.A., Adeyemi,, E., Sule,, B.G., Bobzom,   +3 more
core   +1 more source