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Mostrando ítems 1-9 de 9
Artículo
Environmental risks and mechanical evaluation of recycling red mud in bricks
(Elsevier, 2020-07)
More and more by-products are being used in certain materials, especially in the construction industry. Natural construction materials contain amounts of heavy metals and radionuclides, but when by-products are used in ...
Artículo
Experimental study of a noise reducing barrier made of fly ash
(CSIC Consejo Superior de Investigaciones Científicas, 2021)
Although fly ash is commonly used as an additive to cement, large amounts of this material are disposed in landfills. To mitigate, it would be interesting to develop new products in which fly ash can be easily used and ...
Artículo
Is Recycling Always the Best Option? Environmental Assessment of Recycling of Seashell as Aggregates in Noise Barriers
(MDPI, 2020-07)
Waste recycling is an essential part of waste management. The concrete industry allows the use of large quantities of waste as a substitute for a conventional raw material without sacrificing the technical properties of ...
Artículo
Assessing Durability Properties and Economic Potential of Shellfish Aquaculture Waste in the Construction Industry: A Circular Economy Perspective
(MDPI, 2022-07-08)
The construction industry’s high demand for natural resources, combined with the waste generated by agriculture, creates an opportunity for the circular economy. This experiment used the CaCO3 found in scallop shells as ...
Artículo
Physical, Mechanical and Radiological Characteristics of a Fly Ash Geopolymer Incorporating Titanium Dioxide Waste as Passive Fire Insulating Material in Steel Structures
(MDPI, 2022-12)
This research analyzes whether a titanium dioxide waste (TiO2 waste) can be used as a source material for geopolymers with good fire resistance properties. Samples with differ ent proportions were prepared, replacing fly ...
Artículo
Utilization of Boiler Slag from Pulverized-Coal-Combustion Power Plants in China for Manufacturing Acoustic Materials
(MDPI AG, 2020)
The potential utilization of boiler slag generated in large amounts from pulverized-coalcombustion (PCC) power plants has recently drawn much attention due to the serious problems caused to ecosystems. In order to make ...
Artículo
Development of fly ash-based geopolymers using powder sodium silicate activator
(Elsevier, 2022-08)
Geopolymer manufacturing by means a ready-mix procedure using powder sodium silicate as activator is described in this paper. Its characteristics are compared with conventional geopolymers using aqueous sodium silicate. ...
Artículo
Valorization of Bayer Red Mud in a Circular Economy Process: Valuable Metals Recovery and Further Brick Manufacture
(MDPI, 2022)
In this work, the recovery of valuable metals from Bayer red mud using hydrometallurgical techniques and the subsequent use of the solid remaining after leaching as the principal component of the fired bricks were analyzed. ...
Artículo
Assessment of natural radioactivity levels and radiation exposure in new building materials in Spain
(Oxford University Press, 2021)
Novel building materials were manufactured and analyzed for 226Ra, 232Th and 40K using an HPGe gamma-ray spectrometer. The results show that the highest value of 40K was 4530 Bq per kg which was measured in a sample ...