Results 21 to 30 of about 28,231 (305)

Steel passive state stability in activated fly ash mortars

open access: yesMateriales de Construccion, 2010
The present study explores the behaviour of structural steel embedded in Portland cement (OPC) mortars and NaOH- and NaOH-waterglass-activated fly ash, in the presence and absence of 2 % Cl- (CaCl2). Variations were determined in the corrosion potential (
A. Fernández-Jiménez   +3 more
doaj   +1 more source

Comparison of the properties of mortars containing expanded clay, vermiculite, and rubber residue [PDF]

open access: yesCerâmica
Lightweight mortars are indicated for services that require low specific mass composites. There are several lightweight aggregates available on the market.
A. C. G. da Silva   +7 more
doaj   +1 more source

Mortars and plasters—how to manage mortars and plasters conservation [PDF]

open access: yesArchaeological and Anthropological Sciences, 2021
AbstractThe use of mortars and plasters has been widespread in many cultures for thousands of years and these materials are found in the vast majority of built cultural heritage. They play a crucial role in the preservation of immovable heritage and must be taken into great consideration when conserving historical buildings.
Marta Caroselli   +2 more
openaire   +1 more source

Carbonation of lightweight alkali-activated aggregates based on biomass fly ash: Effect on microstructure and leaching behavior

open access: yesCase Studies in Construction Materials
Artificial aggregates offer a sustainable solution to large-scale waste utilization and the increasing demand for limited natural aggregates. This study extends the understanding of the production of artificial lightweight aggregates with a variable ...
Anže Tesovnik   +2 more
doaj   +1 more source

La adherencia en los morteros de albañilería

open access: yesMateriales de Construccion, 1995
The work presents a study carried out to determine the bond strength reached by bricklaying mortars at 28 days. 23 different dosages were prepared using 4 cement types, 2 sand types and 4 aggregate types.
Jorge Luis Cabrera
doaj   +1 more source

Preliminary analysis of the Late Natufian ground stone from Shubayqa 1, Jordan

open access: yesJournal of Lithic Studies, 2016
Shubayqa 1 is a newly identified early and late Natufian site in the harra desert of northeastern Jordan. In addition to buildings, and rich chipped stone, faunal, and botanical assemblages, the site has produced a large collection of ground stone tools.
Patrick Nørskov Pedersen   +2 more
doaj   +1 more source

Effect of Type of Curing and Metakaolin Replacement on Air Lime Mortars for the Durability of Masonries

open access: yesInfrastructures, 2021
The interest in restoration and maintenance of old masonries towards their durability is nowadays combined with the concept of sustainability and the need to implement more suitable materials for building heritage interventions.
João Monteiro   +2 more
doaj   +1 more source

On the question of the fighting and numerical composition of the artillery of the Crimean front in February-May 1942

open access: yesJuvenis Scientia, 2019
On the basis of archival documents, information on the combat and numerical composition of all parts of the artillery of the Crimean Front (February-May 1942) is summarized, and also for the first time data on forgotten artillery units participating in ...
S. N. Tkachenko
doaj   +1 more source

Mortar Characterization of Historical Masonry Damaged by Riverbank Failure: The Case of Lungarno Torrigiani (Florence)

open access: yesHeritage, 2023
The research of structural masonry associated with geo-hydrological hazards in Cultural Heritage is a multidisciplinary issue, requiring consideration of several aspects including the characterization of used materials. On 25 May 2016, loss of water from
Sara Calandra   +4 more
doaj   +1 more source

The Monumental UNESCO Site of Panamá Viejo: Investigation of the Masonry Mortars

open access: yesHeritage, 2022
The presented study illustrates the characterisation of several artificial materials (bedding, joint mortars, and plasters) belonging to the masonries of the UNESCO site of Panamá Viejo, located in Panama City (Panama).
Chiara Ciantelli   +4 more
doaj   +1 more source

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