Results 61 to 70 of about 1,825 (209)

Urban Microfarms: Hot or Cold Spots for Plants and Soil Biodiversity?

open access: yesEuropean Journal of Soil Science, Volume 77, Issue 2, March–April 2026.
Investigation of soil and plant biodiversity in urban microfarms on the ground and on rooftops. ABSTRACT Urban agriculture plays a key role in urban ecosystems functionality and resilience, and can take many forms: allotment gardens, community garden or urban microfarms.
Sophie Joimel   +9 more
wiley   +1 more source

High-volume natural pozzolan concrete for structural applications

open access: yes, 2007
This paper presents the results of preliminary studies on concrete mixtures containing high volumes of natural pozzolan-(50%- by mass of total cementitious materials) for- structural applications. Three different kinds, of natural pozzolans from. Turkish
Uzal, Burak   +2 more
core   +1 more source

Hydraulic lime with the use of pozzolanic additives [PDF]

open access: yesНанотехнологии в строительстве
Introduction. In the past, air and hydraulic lime were primary materials in building constructions. Due to the limited production of hydraulic lime in Russia, it is of interest to study the possibility of replacing natural hydraulic lime NHL in ...
Valentina I. Loganina   +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

open access: yesGlobal 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   +5 more
openaire   +2 more sources

Mix Proportion of Fly Ash Concrete Based on the Strength Contribution Ratio

open access: yesJAPAN ARCHITECTURAL REVIEW, Volume 9, Issue 1, January–December 2026.
ABSTRACT This study aims to expand the use of fly ash concrete (FAC). Based on an experimental investigation of k values or the contribution of FA addition to the strength of ordinary Portland cement or Portland blast‐furnace slag cement type B, we propose and validate an environmentally friendly mix design for FAC.
Kenji Nishikigi   +3 more
wiley   +1 more source

Engineered soil and the need for lime-natural pozzolan mixture percentage approximation

open access: yes, 2023
The topic, engineered soil and the need for lime-natural pozzolan mixture percentage approximation is tried to be realized with the basic objective of initiating the identification of the percentage range for lime-natural pozzolan amender mixture ...
Admassu , Kassahun
core  

Experimental Optimization of Using Natural Pozzolan in Chloride Ion Exposed Concrete via Taguchi Method

open access: yesTehnički Glasnik, 2021
Concrete durability is one of the most important concerns in the field of construction. The environmentally friendly materials that can provide the durability are of great value in the construction of concrete structures.
Amir Behshad   +2 more
doaj  

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

open access: yesAl-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

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

open access: yesAdvances 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   +5 more
wiley   +1 more source

Testing Concrete for the Construction of Winemaking Tanks

open access: yesApplied Sciences
This work focuses on the design of concrete for the construction of winemaking tanks, as well as coating behaviour and stability of the systems in wine immersion.
Eleftherios K. Anastasiou   +4 more
doaj   +1 more source

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