Results 21 to 30 of about 3,478 (197)

Effect of thermo-activation on mechanical strengths and chlorides permeability in pozzolanic materials

open access: yesCase Studies in Construction Materials, 2018
The present research aimed to study the combined effects of natural pozzolana and curing on the compressive and flexural strengths of mortars; it also investigated the chloride permeability of concrete.
M. Elbar   +4 more
doaj   +1 more source

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

Pozzolanic properties of residues of sugar industries (second part)

open access: yesMateriales de Construccion, 2001
Results of studies conducted in lime pozzolana pastes are introduced in this paper. The pozzolana was sourced from Sugar Cane Baggasse Ash (CBC) and Sugar Cane Straw Ash (CPC). The hydration of this binder was carefully monitored by means of instrumental
J. F. Martirena-Hernández   +6 more
doaj   +1 more source

Behavior of Lightweight Concrete Incorporating Pozzolana Aggregate and Expanded Polystyrene Beads

open access: yesEngineering Sciences, 2023
The inclusion of Expanded Polystyrene (EPS) beads in concrete mixtures presents a practical method for preserving natural aggregate resources and addressing the environmental impact caused by the accumulation of EPS waste.
R. Alhnifat   +2 more
semanticscholar   +1 more source

Properties of lightweight concrete made with crushed natural pozzolana as coarse aggregate

open access: yesTechnological and Economic Development of Economy, 2007
This paper describes a laboratory‐based study examinig the use of natural pozzolana as an aggregate component in lightweight concrete (LWC). A range of conditioning variables, including cement and moisture content, storage period up to one year, was ...
Mohamed Mouli, Hamid Khelafi
doaj   +1 more source

Strength Improvement Using Polypropylene Fiber as Reinforcement in Natural Pozzolana-lime-stabilized Expansive Clayey Soil Artificially Contaminated by Sulfates

open access: yesPeriodica polytechnica. Civil engineering, 2023
This paper aims to assess the behavior of the unconfined compressive strength (UCS) of polypropylene fiber (PF) reinforced natural pozzolana-lime-stabilized expansive grey clayey soil (GS) contaminated by sulfates.
H. Gadouri, Brahim Mezian
semanticscholar   +1 more source

The thermal properties of mortars modified by the effect of combining polymers and SCMs

open access: yesJournal of Building Materials and Structures, 2018
The thermal performance of the building materials is relevant to any use of composite materials, especially in relation to constructions where it is desirable to have high specific heat, low thermal conductivity and slight or no decrease of stiffness ...
Boucif Belbachir   +4 more
doaj   +1 more source

Carbonation kinetics in roman-like lime mortar

open access: yesMateriales de Construccion, 2004
The kinetic parameterisation of lime mortar carbonation is a useful technique for understanding ancient building methods and the long-lived physical-chemical stability of roman monuments.
S. Sánchez-Moral   +4 more
doaj   +1 more source

Experimental data on permeability-related properties of concrete containing nano natural pozzolana as cement replacement

open access: yesData in Brief, 2022
The addition of supplementary cementitious materials (SCM), particularly at nano level, leads to several benefits, such as the reduced permeability of concrete matrix, which consequently leads to having more durable and sustainable concrete.
Aref M. al-Swaidani
doaj   +1 more source

Evaluation of Pozzolanic activity and lime reactivity of fly ash, GGBS, mica powder and pumice as binders [PDF]

open access: yesE3S Web of Conferences
This article presents the effect of the pozzolanic activity and lime reactivity of various siliceous materials, like fly ash, GGBS (Ground granulated blast furnace slag), mica and pumice powders.
Ramanujam I.V. Ranga   +2 more
doaj   +1 more source

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