Results 11 to 20 of about 35,429 (221)

Research on regeneration methods of animal glue waste sand for foundry [PDF]

open access: yesRoyal Society Open Science, 2018
Sand moulds are used in the casting process. However, after heating, the binder in the sand loses the binding properties, and the most part of the foundry sand has to be discarded from the process.
Li Ying-min   +2 more
doaj   +1 more source

Use of Foundry Sands in the Production of Ceramic and Geopolymers for Sustainable Construction Materials

open access: yesApplied Sciences, 2023
The aim of this research was to evaluate the possibility of reusing waste foundry sands derived from the production of cast iron as a secondary raw material for the production of building materials obtained both by high-temperature (ceramic tiles and ...
Caterina Sgarlata   +4 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

Organobentonite Binder for Binding Sand Grains in Foundry Moulding Sands

open access: yesMaterials, 2023
A series of studies related to the production of organobentonite, i.e., bentonite-poly(acrylic acid), and its use as a matrix grain-binding material in casting moulding sand is presented. In addition, a new carbon additive in the form of shungite was introduced into the composition of the moulding sand. Selected technological and strength properties of
Beata Grabowska   +7 more
openaire   +2 more sources

Non-standard tests for process control in chemically bonded sands [PDF]

open access: yesChina Foundry, 2016
Chemically bonded sand cores and molds are more commonly referred to as precision sand systems in the high production automotive powertrain sector. Their behavior in contact with molten metal can lead to casting defects.
S. Ramrattan
doaj   +3 more sources

Effect of Adding Used-Foundry Sand on Hot Asphalt Mixtures Performance [PDF]

open access: yesEngineering and Technology Journal, 2016
Highway material researchers have been investigating the use ofbyproduct materials such as used-foundry sand as a fine aggregate and mineral filler in asphaltic concrete mixtures to replace the traditional asphalt mixes by new one contain this type of ...
Hasan Hamodi Joni, Hussein HamelZghair
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

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

GEOPOL®. The innovated environment friendly inorganic binder system [PDF]

open access: yes, 2019
This paper deals with the complete technology of inorganic geopolymer binder system GEOPOL® which is a result of long term research and development. The objective of this paper is to provide a theoretical and practical overview of the GEOPOL® binder ...
Burian, Alois   +2 more
core   +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

Home - About - Disclaimer - Privacy