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1.
Materials (Basel) ; 15(8)2022 Apr 07.
Article in English | MEDLINE | ID: mdl-35454421

ABSTRACT

The topic of sustainability of reinforced concrete structures is strictly related with their durability in aggressive environments. In particular, at equal environmental impact, the higher the durability of construction materials, the higher the sustainability. The present review deals with the possible strategies aimed at producing sustainable and durable reinforced concrete structures in different environments. It focuses on the design methodologies as well as the use of unconventional corrosion-resistant reinforcements, alternative binders to Portland cement, and innovative or traditional solutions for reinforced concrete protection and prevention against rebars corrosion such as corrosion inhibitors, coatings, self-healing techniques, and waterproofing aggregates. Analysis of the scientific literature highlights that there is no preferential way for the production of "green" concrete but that the sustainability of the building materials can only be achieved by implementing simultaneous multiple strategies aimed at reducing environmental impact and improving both durability and performances.

2.
J Appl Biomater Funct Mater ; 16(3): 186-202, 2018 Jul.
Article in English | MEDLINE | ID: mdl-29996741

ABSTRACT

This review presents "a state of the art" report on sustainability in construction materials. The authors propose different solutions to make the concrete industry more environmentally friendly in order to reduce greenhouse gases emissions and consumption of non-renewable resources. Part 1-the present paper-focuses on the use of binders alternative to Portland cement, including sulfoaluminate cements, alkali-activated materials, and geopolymers. Part 2 will be dedicated to traditional Portland-free binders and waste management and recycling in mortar and concrete production.


Subject(s)
Construction Materials , Green Chemistry Technology , Waste Management/methods , Alkalies/chemistry , Aluminum Compounds/chemistry , Aluminum Silicates/chemistry , Calcium Compounds/chemistry , Clay , Corrosion , Sulfur Compounds/chemistry
3.
J Appl Biomater Funct Mater ; 16(4): 207-221, 2018 Oct.
Article in English | MEDLINE | ID: mdl-29991308

ABSTRACT

The paper represents the "state of the art" on sustainability in construction materials. In Part 1 of the paper, issues related to production, microstructures, chemical nature, engineering properties, and durability of mixtures based on binders alternative to Portland cement were presented. This second part of the paper concerns the use of traditional and innovative Portland-free lime-based mortars in the conservation of cultural heritage, and the recycling and management of wastes to reduce consumption of natural resources in the production of construction materials. The latter is one of the main concerns in terms of sustainability since nowadays more than 75% of wastes are disposed of in landfills.


Subject(s)
Construction Materials , Waste Management/methods , Calcium Compounds/chemistry , Clay/chemistry , Green Chemistry Technology/methods , Oxides/chemistry , Recycling , Rubber/chemistry , Silicon Dioxide/chemistry
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