Results 11 to 20 of about 398 (163)

Advancing eco-friendly concrete with locally sourced natural pozzolana

open access: yesFrontiers in Built Environment
IntroductionThis study investigates the potential of locally sourced Natural Pozzolana (NP) from Saudi Arabia as a sustainable Supplementary Cementitious Material (SCM) for green concrete, supporting Saudi Vision 2030.MethodsAn extensive experimental ...
W. H. Khushefati   +3 more
doaj   +2 more sources

Effect of Natural Pozzolana on Physical and Mechanical Properties of Concrete

open access: yesAdvances 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.
Tsion Amsalu Fode   +2 more
doaj   +4 more sources

The influence of natural pozzolana mineralogical composition in the properties of blended cement

open access: yesMateriales de Construccion, 2002
The pozzolana activity is the main property of the active additions but, in order to select them, we have to consider - between other factors- its mineralogical composition with a great influence, not only in the active component, but also in other ...
M. Gener Rizo, J. M. Alonso Lavernia
doaj   +4 more sources

Effect of different pozzolana on hardening process and properties of hydraulic binder based on natural anhydrite

open access: yesJournal of Civil Engineering and Management, 2012
The study deals with peculiarities of hydration and development of hardening structure as well as durability properties pertaining to composite anhydrite cement pozzolana binder (ACP) with different pozzolana (P).
Jadvyga Žvironaitė   +3 more
doaj   +3 more sources

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

open access: yesAdvances in Civil Engineering
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.
Nancy Mweni Paul   +5 more
doaj   +2 more sources

Some Engineering Properties of Concrete Containing Natural Pozzolana and Silica Fume

open access: yesJournal of Asian Architecture and Building Engineering, 2006
Ternary blended cements are often used in cement manufacture using industrial waste and natural resources to produce a low cost and an environment friendly cement.
Mohamed Ghrici   +2 more
exaly   +2 more sources

Natural pozzolana addition effect on compressive strength and capillary water absorption of Mortar

open access: yesEnergy Procedia, 2017
Abstract The cement manufacturing is the one of the factors that pollutes the atmosphere in the industrial sector. The common way to reduce this pollution is using mineral additives as partial replacement of Portland cement. Particularly, natural pozzolana (NP) is a component in which they can be used to decrease the rate of pollution.
Walid Deboucha   +2 more
exaly   +2 more sources

Coupled Effect of temperature and additions on the rheological behavior of concrete equivalent mortars (CEM) [PDF]

open access: yesMATEC Web of Conferences, 2020
The aim of this work is to study the influence of mineral additions on the rheological behavior of low impact environmental concrete with its concrete equivalent mortar (CEM) at different temperatures.The experimental study is carried out on cement-based
Dada El Hadja   +3 more
doaj   +1 more source

Development of Concrete Incorporating Recycled Aggregates, Hydrated Lime and Natural Volcanic Pozzolan

open access: yesInfrastructures, 2021
Recycling of construction and demolition waste is a central point of discussion throughout the world. The application of recycled concrete as partial replacement of mineral aggregates in concrete mixes is one of the alternatives in the reduction of ...
Natividad Garcia-Troncoso   +2 more
doaj   +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

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