Results 91 to 100 of about 7,633 (204)

Green options for anti-corrosion of high strength concrete incorporating ternary pozzolan materials

open access: yesMATEC Web of Conferences, 2017
This paper applied the densified mixture design algorithm(DMDA) method by incorporating ternary pozzolans (fly ash, slag and silica fume; mix I and mix II) to design high strength concrete (HSC) mixtures with w/cm ratios from 0.24 to 0.30.
Chen Yuan-Yuan, Yang Chien-Jou
doaj   +1 more source

Some considerations about the durability of historic mortars [PDF]

open access: yes, 2008
The current manuscript discusses the durability of historical mortars. The majority of the descriptions about those mortars are mainly related to the Roman period and refer the mixture of calcium hydroxide and pozzolans (volcanic ashes and calcined ...
Gomes, J. P. Castro   +2 more
core  

Flexural Performance of Ambient‐Cured Metakaolin‐Stabilized Compressed Earth Brick Walls With Cement‐Soil Mortar Joints

open access: yesEngineering Reports, Volume 7, Issue 4, April 2025.
This study highlights a 79.17% improvement in the flexural strength of metakaolin‐stabilized compressed earth brick (CEB) walls with cement‐soil mortar joints, emphasizing their potential as sustainable, resilient materials for regions prone to lateral loads, with reduced environmental impact and enhanced thermal performance.
Edmond Didier Medongou Tejiogho   +3 more
wiley   +1 more source

Evaluation of electric properties of cement mortars containing pozzolans

open access: yesMateriales de Construccion, 2011
In this paper the evolution of the microstructure of Portland cement mortar is analyzed, by using electrical impedance measurements. Cement mortars are compared without and with two pozzolanic substitutions: spent fluid catalytic cracking catalyst (FCC ...
J. M. Cruz   +3 more
doaj   +1 more source

Enhancing concrete sustainability with spent diatomaceous earth from the wine industry: Long‐term experimental and statistical analysis

open access: yesStructural Concrete, Volume 26, Issue 2, Page 2277-2295, April 2025.
Abstract Spent diatomaceous earth, a by‐product of wine filtration, holds significant promise for use in concrete mixtures due to its pozzolanic properties, which enhance concrete performance. This research explores the application of spent calcined diatomaceous earth (SCDE), heat‐treated at 700°C to remove organic content, as a partial substitute for ...
Leandro J. R. Magalhães   +2 more
wiley   +1 more source

Performance of silicic pozzolans and Portland cements in their behavior in front of gypsum attack as determined by ASTM C 452-68

open access: yesMateriales de Construccion, 2013
For this study, ASTM C 452-68 testing was conducted for two years on 54 POZC-silica fume (SF) or diatomites (D and N) (=Z pozzolans), were tested for 2 years, by ASTM C 452-68 method, having determined to their specimens their Vcl(=ΔL(%)/day) .
R. Talero
doaj   +1 more source

Materials Science in Ancient Rome [PDF]

open access: yes, 2011
Two books, the "De Architectura" by Vitruvius and the "Naturalis Historia" by Pliny the Elder, give us a portrait of the Materials Science, that is, the knowledge of materials, in Rome at the beginning of the Empire.
Sparavigna, Amelia Carolina
core   +1 more source

An artificial neural network approach to predict particle shape characteristics of clay brick powder under various milling conditions

open access: yesResults in Materials
The prediction and monitoring of shape descriptors of pozzolans generated from ball milling processes remain today unattended by researchers. Since the particle shapes of pozzolans influence the performance of pozzolanic materials in cement-based ...
David Sinkhonde, Destine Mashava
doaj   +1 more source

ESTABLISHMENT OF AGE VS STRENGTH CURVE FOR SET OF MATERIALS [PDF]

open access: yes, 2017
This study was directed toward performance of concrete under varying water to cementitious materials ratio. The influence of constituent materials and various mix proportions on compressive strength of concrete was studied experimentally and reported. At
MR. HIMANSHU PRASAD KULKARNI
core   +2 more sources

Monitoring the reduction in shrinkage cracking of mortars containing superabsorbent polymers [PDF]

open access: yes, 2017
Ultra-high performance concrete (UHPC) is characterized by a low water-to-cement ratio, leading to improved durability and mechanical properties. However, the risk for autogenous shrinkage and cracking due to restrained shrinkage increases, which may ...
Aggelis, Dimitrios G.   +5 more
core  

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