Results 21 to 30 of about 386,462 (206)

Substitution of aggregates by waste foundry sand: effects on physical properties of mortars

open access: yesMateriales de Construccion, 2021
The substitution of the normalized aggregate by residual foundry sand (WFS) was studied on the physical properties of mortars by means of resistance to compression and capillary absorption tests.
B.A. Feijoo   +2 more
doaj   +1 more source

Effect of Foundry Sand and Mineral Admixtures on Mechanical Properties of Concrete

open access: yesArchives of Civil Engineering, 2018
Foundry sand waste can be utilized for the preparation of concrete as a partial replacement of sand. The strength properties of M25 grade concrete are studied with different percentages of replacement of fine aggregates by foundry sand at 0%, 10%, 20 ...
Sastry K.V.S.Gopala Krishna   +2 more
doaj   +1 more source

A New Approach in Recycling Waste Foundry Sand for the Preparation of Porous Silicon Powder

open access: yesInternational Journal of Electrochemical Science, 2020
Disposal of waste foundry sand is still one of the most critical challenges faced by the foundry industry. The recycling and reusing of waste foundry sand not only lead to a saving of naturally abundant sand sources but also enhance the sustainability of
Rongfu Xu   +3 more
doaj   +1 more source

Recovery of Silicon Dioxide from Waste Foundry Sand and Alkaline Activation of Desilicated Foundry Sand [PDF]

open access: yesJournal of Sustainable Metallurgy, 2020
Abstract This study was conducted to recover silica (desilication) as a valuable metalloid from waste foundry sand (WFS) by a leaching process and to find application for desilicated foundry sand (DFS). The leaching time applied was 5 h; 3 M of potassium hydroxide (KOH) was used as a leaching reagent.
Tebogo Mashifana, Thandiwe Sithole
openaire   +1 more source

Properties of furfuryl alcohol resins for conventional sand moulding and binder jetting applications [PDF]

open access: yesMATEC Web of Conferences, 2022
This paper compares two commercial acid-cured furfuryl alcohol resins. The first material is used for conventional sand moulding (CSM), while the second material was manufactured for the binder jetting process (BJP) using a Voxeljet VX 1000 printer.
Tshabalala Neo V., Nyembwe Kasongo D.
doaj   +1 more source

Research on forming method of additive manufacturing of frozen sand mold

open access: yesHeliyon, 2023
In order to promote the green and sustainable development of the foundry industry, it is necessary to further explore new methods and technologies for green foundry. This paper innovatively proposes a method of additive manufacturing of frozen sand mold,
Haoqin Yang   +4 more
doaj   +1 more source

Properties of self-compacting concrete modified with m-sand and spent foundry slag

open access: yes, 2023
Due to significant industrialization, many countries have adopted the practice of industrial symbiosis, which involves utilizing the waste produced by one industry as a resource for another industry.
B. Udayasree   +3 more
core   +1 more source

Sustainable utilization of discarded foundry sand and crushed brick masonry aggregate in the production of lightweight concrete

open access: yesEngineering Structures and Technologies, 2017
Nowadays, there is a considerable shortage in the availability of river sand and natural stone aggregate for the construction activities all around the globe and the way out is being worked out by the use of discarded foundry sand and crushed brick ...
Gireesh Mailar   +4 more
doaj   +1 more source

Estudio sobre el efecto del polvo de mármol y los residuos de arena de fundición como agregados finos en las propiedades del hormigón hecho con cemento de metacaolín

open access: yesRevista Ingeniería de Construcción, 2023
To bring an challenging and acceptable change in construction industry, upcoming graduates have to be much aware of alternate materials to be used in conventional concrete with improved performances and this study can be an encouraging approach to them.
N. sakthieswaran
doaj   +1 more source

Investigation into the Heat of Hydration and Alkali Silica Reactivity of Sustainable Ultrahigh Strength Concrete with Foundry Sand

open access: yesAdvances in Materials Science and Engineering, 2017
This study presents the hydration reactivity and alkali silica reaction (ASR) of ultrahigh strength concrete (UHSC) that has been made more sustainable by using spent foundry sand.
Federico Aguayo   +3 more
doaj   +1 more source

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