Results 61 to 70 of about 1,825 (209)
Urban Microfarms: Hot or Cold Spots for Plants and Soil Biodiversity?
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
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]
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
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
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
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
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]
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
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
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

