Results 61 to 70 of about 913 (181)

Microbial Deterioration Potential and Mitigation Strategies in Blended Cement Structures: A Review

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
Microbial‐induced deterioration (MID) is a threat to the durability of cement‐based materials (CBMs) particularly in sewer and wastewater systems. Whereas blended cements incorporating supplementary cementitious materials (SCMs) offer environmental benefits such as reduced carbon (IV) oxide (CO2) emissions and enhanced mechanical performance, their ...
Beatrice Wanjiru Mwangi, Genson Murithi, Reginah Ngari, Jackson Muthengia, Nancy Mweni Paul, Li Qingchao   +5 more
wiley   +1 more source

Performance assessment of natural pozzolan roller compacted concrete pavements

Case Studies in Construction Materials, 2017
Concrete pavement is cost effective and beneficial because of its sustainability and durability. The maintenance and renovation periods for such pavement compared to other pavements are relatively long; however, a significant issue with pavements ...
S.A. Ghahari, A. Mohammadi, A.A. Ramezanianpour   +2 more
doaj   +1 more source

Comparative study of the effects of a natural pozzolan and an artificial pozzolan on the hydraulic properties of Portland cement mortar

Global Journal of Engineering and Technology Advances, 2023
The comparative study of some effects of natural and artificial pozzolans on the hydraulic properties of Portland cement mortar is performed in this work. The natural pozzolan used coming from the Djoungo deposit, Moungo department in the Littoral region (Cameroon) was finely ground and then sieved at 100 μm.
Blaise Ngwem Bayiha, Benjamin Bahel, Fabien Kenmogne, Ulrich Nota Yemetio, Emmanuel Yamb, Ndigui Billong   +5 more
openaire   +2 more sources

Experimental Study on Hybrid Stabilization of Subgrade Expansive Soils With Brewery Spent Grain Ash and Wheat Straw Fiber

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
To develop a sustainable mix of brewery spent grain ash (BSGA) and wheat straw fiber (WSF) to stabilize expansive soils, this experiment examines the mix’s engineering characteristics and aims to reduce environmental degradation by using these materials to improve soil stability.
Lamrot Assefa, S. M. Assefa, Hirei Mohammed Hussen, Eleyas Assefa, Nagessa Zerihun Jilo, Siva Avudaiappan   +5 more
wiley   +1 more source

Effects of Partial Substitution of Ordinary Portland Cement With Stone‐Cutting Dust, Limestone, and Natural Pozzolana on Compressive Strength and Microstructure

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
Rapid industrialization and urban growth have driven a rising demand for cement, yet ordinary Portland cement (OPC) production remains energy‐intensive and a major source of CO2 emissions. The partial substitution of OPC with supplementary cementitious materials (SCMs) offers a sustainable route to reduce environmental impact, production costs, and ...
Nancy Mweni Paul, Jackson Wachira Muthengia, Genson Murithi, Esther Wanja Nthiga, Joanne Ogunah, Reginah Wangui Ngari, Qian Fang   +6 more
wiley   +1 more source

The effect of pozzolan addition on the physical and mechanical properties of lime mortar

E3S Web of Conferences, 2018
Hydrated lime, due to its life cycle (return to the natural form as a result of binding and hardening) shows a positive ecological aspect. The binder is often used in building materials based on plant components due to the high alkaline reaction and low ...
Brzyski Przemysław
doaj   +1 more source

CHARACTERIZATION AND EVALUATION OF NATURAL ZEOLITE AS A POZZOLANIC MATERIAL [PDF]

Al-Azhar Bulletin of Science, 2018
This paper presents details about mineralogical and chemical composition of natural zeolite (NZ) from Harrat Shama for using it as a pozzolanic material. The structural properties and mineralogical composition of NZ were determined using XRF, XRD, FTIR, DSC, SEM-EDX as well as study surface texture and cation exchange capacity. The geopolymer paste was
openaire   +1 more source

Modification of the Performance of Fresh and Hardened Concrete Reinforced With Fibers From Oil Palm Mesocarp

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
Currently, many researchers use industrial or agricultural by‐products (waste) as raw materials for the construction sector. These wastes are economical and help preserve the environment through good waste management. For this purpose, oil palm mesocarp fibers (OPMFs) are used at various volume concentrations (0%, 0.25%, 0.5%, and 1%) for the ...
Paul William Mejouyo Huisken, Inès Léana Tchetgnia Ngassam, Gilbert Tchemou, Syrille Brice Tchinwoussi Youbi, Ebenezer Njeugna, Fujiao Tang   +5 more
wiley   +1 more source

Effect of Steam, Carbonation, and Autoclave Curing on the Mechanical, Durability, and Microstructure Properties of UHPC: A Comprehensive Review

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
Ultra high‐performance concrete (UHPC) is a material that brings revolutionary changes to modern building construction due to its outstanding mechanical, durability, and microstructural properties. This study investigates the impacts of these properties under three distinct curing regimes—steam curing, carbonation curing (CC), and autoclave curing (AC),
Shuvo Dip Datta, Samir Mazumder, Ying Qin   +2 more
wiley   +1 more source

Sustainable tuning of pozzolan microfiltration membranes using walnut shell additives: A response surface methodology investigation

Open Ceramics
This study investigates the fabrication and characterization of flat ceramic membranes prepared by dry pressing using natural pozzolans and walnut shell powder as a bio-additive. Raw materials were characterized by XRF, XRD, FTIR, and TGA/DSC. A response
Mounia Baidou, Khaoula Benzaboul, Hajar El Moustansiri, Soukaina El Abbadi, El Mokhtar Lemdek, Mohamed Douma, Abdelmjid Bouazizi   +6 more
doaj   +1 more source