Results 31 to 40 of about 3,478 (197)

Experimental investigation of industrial wastes in concrete: Mechanical and microstructural evaluation of pumice powder and Fly Ash in concrete

open access: yesCase Studies in Construction Materials, 2023
Industrial wastes have been widely used worldwide in the construction industry as a pozzolana aiming to reduce Portland cement utilization and to produce economical, energy-efficient, and environment-friendly concrete.
Abdulnoor A.J. Ghanim   +4 more
doaj   +1 more source

Impact of ground granular blast slag proportioning in fly ash geopolymer mortars with eco-processed pozzolana and palm oil clinker sand

open access: yesDiscover Materials
Environmental concerns in cement production, driven by carbon dioxide emissions, have intensified. Traditionally, fly ash (FA)-based geopolymer mortars required high-temperature curing, which is impractical.
A. Gaddafi
semanticscholar   +1 more source

Influence of Temperature on Shear Behavior of Lightweight Reinforced Concrete Beams Using Pozzolana Aggregate and Expanded Polystyrene Beads

open access: yesCivilEng, 2023
The innovation inherent to employing expanded polystyrene (EPS) beads lies in its transformative impact on traditional concrete practices. Through the incorporation of EPS beads in concrete mixtures, a novel approach emerges that significantly alters the
M. Abdel-Jaber   +6 more
semanticscholar   +1 more source

Physical-Chemical characterization of roman mortars in El Ruedo at Almedinilla, Córdoba

open access: yesMateriales de Construccion, 2004
This paper describes the analysis of Roman mortars in two rooms of a villa at El Ruedo, Almedinilla, Cordoba. The techniques or procedures used included grain size distribution analysis and X ray diffraction.
J. M. Fernández Rodríguez   +1 more
doaj   +1 more source

Effect of Natural Pozzolana on Physical and Mechanical Properties of Concrete

open access: yesAdvance in Civil Engineering
Construction industries are rapidly growing, sacking high amounts of concrete which has a highly dense microstructure with excellent mechanical properties, more durable, and highly eco-friendly materials.
T. Fode, Y. Jande, T. Kivevele
semanticscholar   +1 more source

A Neural Network-Based Prediction of Superplasticizers Effect on the Workability and Compressive Characteristics of Portland Pozzolana Cement-Based Mortars

open access: yesAdvances in Materials Science and Engineering, 2023
Portland Pozzolana Cement (PPC) mortars are predominantly employed in plastering works to achieve better workability, superior surface finish, and higher fineness to offer better cohesion with fine aggregates than the ordinary Portland cement (OPC ...
P. Manikandan   +6 more
semanticscholar   +1 more source

Flow of wet natural pozzolana

open access: yesJournal of Physics: Conference Series, 2009
We present experimental results on the flow and stability conditions for natural pozzolana, a natural volcanic sand widely used in concrete production. We measured different angles involved in equilibrium conditions for sand piles and relate them to the flux parameters necessary to produce a silo evacuation.
Medici, Maria Elizabeth   +6 more
openaire   +2 more sources

Behavior of Natural Pozzolana-Lime-stabilized Clayey Soils Artificially Contaminated by Sulfates

open access: yesJordan Journal of Civil Engineering, 2023
The use of lime in sulfate-bearing clayey soils has historically caused structural damage to infrastructures due to the formation of an expansive ettringite mineral. In this paper, a research was conducted to study the effectiveness of natural pozzolana (
H. Gadouri
semanticscholar   +1 more source

HIGH DENSITY POLYETHYLENE FILLED WITH POZZOLANA AS A POLYMER RADIATION PROTECTION MATERIAL [PDF]

open access: yes, 2023
The radiation-protective properties of polymer composite materials based on high-density polyethylene with a filler made of natural pozzolana, as well as a binding agent in the form of vinyltrimethoxysilane were studied in this ...
Аладаилах, М. В.   +7 more
core  

Performance of Expansive Soil blended with Waste Marble Dust and Natural Pozzolana for Road Subgrade

open access: yesEngineering, Technology & Applied Science Research
This research examined the effects of Natural Pozzolana (NP) on expansive soil blended with Waste Marble Dust (WMD), focusing on improving its engineering properties.
Dynah Irakoze   +2 more
semanticscholar   +1 more source

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