Results 21 to 30 of about 398 (163)

A Comparative Study on the Properties of Volcanic Rocks from the Aegean Islands, Greece, for Utilization as Pozzolanic Additives in Cement

open access: yesMaterials Proceedings, 2023
This comparative study investigates the pozzolanic potential of volcanic rocks sourced from the Aegean Islands, Greece, as additives in cement. The utilization of volcanic materials as pozzolanic additives has gained interest due to its ability to ...
Theodoros Sainis   +3 more
doaj   +1 more source

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

Effect of Volcanic Ash and Natural Pozzolana on mechanical properties of sustainable cement concrete: A comprehensive review

open access: yesCase Studies in Construction Materials, 2023
Environmental degradation is on the rise due to escalating pollution caused by raw material depletion and the increasing demand for concrete products.
Hussein M. Hamada   +4 more
doaj   +1 more source

Modeling the cementitious effect of the Pozzolana on the compressive strength of concrete

open access: yesCogent Engineering, 2018
The natural Pozzolana is a siliceous material (SiO2) that reacts with the calcium hydroxide Ca(OH)2 produced during the hydration period of the cement; this inherent feature increases the cementitious property of the grout and improves the compressive ...
Afif Rahma, Haifaa Jomaa
doaj   +1 more source

Stabilization of Algerian Clayey Soils with Natural Pozzolana and Lime

open access: yesPeriodica Polytechnica Civil Engineering, 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. The aim of this paper is to study the effect of using lime, natural pozzolana or a combination of both lime and natural ...
Said Kenai   +2 more
openaire   +2 more sources

Effet de la combinaison de la chaux et de la pouzzolane naturelle sur le compactage et la résistance des sols mous argileux Effect of the combination of lime and natural pozzolana on the compaction and strength of soft clayey soils

open access: yesMATEC Web of Conferences, 2012
La stabilisation des sols mous a été pratiquée longtemps en mélangeant des ajouts, tels que le ciment, la chaux et les cendres volantes au sol pour augmenter sa résistance.
Kenai S., Harichane K., Ghrici M.
doaj   +1 more source

The use of non-destructive tests to estimate Self-compacting concrete compressive strength

open access: yesMATEC Web of Conferences, 2018
Until now, there are few studies on the effect of mineral admixtures on correlation between compressive strength and ultrasonic pulse velocity for concrete.
Djamila Boukhelkhal, Mohamed Guendouz
doaj   +2 more sources

Influence of supplementary cementitious materials in sustainability performance of concrete industry: A case study in Hong Kong

open access: yesCase Studies in Construction Materials, 2021
Although the use of a few industrial by-products as supplementary cementitious materials (SCMs) is one of the most recognized solutions to produce more durable and sustainable concrete, cost-competitive supply of such materials is of great concern ...
Md. Uzzal Hossain   +2 more
doaj   +1 more source

Assessment of the application of CEM III with exposed aggregate as an alternative to CEM I for road pavements [PDF]

open access: yesArchives of Civil Engineering, 2022
The article presents a results of study on the impact of replacing CEM I SR3/NA by CEMIII/A LH/HSR/NAon the mechanical properties and durability of pavement concrete with exposed aggregate. Was used granite aggregate and washed sand. Water/cement (w / c)
Marzena Kurpińska, Aldona Wcisło
doaj   +1 more source

Possible Use of Diatomite and Pumice-Amended Mortar and Plaster in Agricultural Structures

open access: yesTurkish Journal of Agriculture: Food Science and Technology, 2017
This study was conducted to investigate the potential use of diatomite (a natural pozzolana) and pumice in plasters and mortars to be used in agricultural buildings.
Serkan Yazarel, Sedat Karaman
doaj   +1 more source

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