Results 21 to 30 of about 1,460 (211)

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

Stabilization of Algerian Clayey Soils with Natural Pozzolana and Lime

open access: yes, 2017
Cohesive soils with a high plasticity index present difficulties in construction operations because they usually contain expansive clay minerals. However, the engineering properties of soils can be improved by different techniques.
Harichane, Khelifa   +2 more
core   +2 more sources

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

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

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

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

The Influence of Production Parameters on Pozzolanic Reactivity of Calcined Clays

open access: yesNordic Concrete Research, 2018
Calcined clays are gaining increasing interest as future supplementary cementitious materials for the production of blended cements. Besides the mineralogy, the right production conditions can affect the pozzolanic activity of calcined clays.
Danner Tobias, Justnes Harald
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

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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