Results 1 to 10 of about 15,757 (248)

Representativity of morphological measurements and 2-d shape descriptors on mineral admixtures

open access: yesResults in Engineering, 2022
Using mineral admixtures has been proved to be significant for the production of cement-based composites. Burnt Clay Powder (BCP), Rice Husk Ash (RHA), Coconut Shell Ash (CSA) and Gum Arabic (GA) can be used as cement substitutes in cement-based ...
David Sinkhonde
exaly   +3 more sources

The effect of shrinkage reducing admixture and expansive admixture on properties of mortars with Portland and slag cement [PDF]

open access: yesArchives of Civil Engineering, 2022
Both shrinkage reducing admixtures (SRA) and expansive admixture (EXP) can be used to reduce the risk of cracking in concrete. Synergistic effect of using both of those admixtures simultaneously was a was found, however little information can be found on
Jacek Gołaszewski   +1 more
doaj   +1 more source

Study of AC - 20 asphalt mixture ratio on the runway of of Chang Sha Airport [PDF]

open access: yesMATEC Web of Conferences, 2022
After years of use, there’s oil loss on the asphalt pavement. the bond strength of aggregate decreases. Loose threshing is serious. In order to improve the pavement performance, Extend the service life of pavement, Improve the safety of aircraft ...
Tian Shuaituan   +3 more
doaj   +1 more source

Effect of Admixtures on Selected Properties of Fly Ash-Based Geopolymer Composites

open access: yesApplied Sciences, 2023
This research was carried out to expand our knowledge of the effects of different admixtures on the properties of fly ash-based geopolymer composites. Three admixtures were used: a liquifying admixture based on stabilized polycarboxylates, a plasticizing
Natalia Stankiewicz
doaj   +1 more source

The Effects of Nano-Based Bio-Carbonates in Superhydrophobic Concrete—A Review

open access: yesBuildings, 2023
Concrete must be a hydrophilic compound that is easily fabricated by nature. At the nanoscale, mechanical and chemical reactions alter the quality of cement-based substances.
Lavanya Muthugoundenpalayam Rajendran   +3 more
doaj   +1 more source

Effect of Concrete Admixtures on Structural Properties and Corrosion Resistance of Steel Reinforcements

open access: yesMedžiagotyra, 2021
Concrete structural properties are compromised largely due to corrosion susceptibility of steel reinforcements. This results in weakening and eventual failure of structures.
Ali Dad CHANDIO   +7 more
doaj   +1 more source

Influence of lithium carbonate and superplasticizer as admixtures on low calcium dialuminate cement castable submitted to thermal shock

open access: yesJournal of Asian Ceramic Societies, 2021
The purpose of this study was to investigate the hot properties of low calcium dialuminate cement castable as binder with varying amount of Li2CO3 and castament FS20 superplasticizer as admixtures. Thermal damage test was carried out through quenching in
Arlin Bruno Tchamba   +7 more
doaj   +1 more source

Techniques and methods of characterization of admixtures for the concrete

open access: yesMateriales de Construccion, 2003
Admixtures are defined as those products that are incorporated in the moment of the process of mixture of the concrete in a quantity not bigger than 5 by mass of the cement %, with relationship to the cement content in the concrete, with object of ...
M. Palacios, C. Sierra, F. Puertas
doaj   +1 more source

Rapid Chloride Permeability Test of Mortar Samples with Various Admixtures

open access: yesEngineering Proceedings, 2023
This paper is focused on the permeability of cement composite samples with various admixtures. Permeability was examined by the rapid chloride permeability test due to the simple and relatively quick performance among the many methods.
Miriama Čambál Hološová   +2 more
doaj   +1 more source

Concrete admixtures - sustainable concrete

open access: yesActa Polytechnica CTU Proceedings, 2022
Durability of concrete, an important part of the sustainability theme, was, is, and will be one of the main topics for large infrastructure projects like the Gotthard base tunnel.
Oliver Schwoon
doaj   +1 more source

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