Browse

The paper presents the results of investigations on the in-service behavior of concrete structures used in fruit and vegetable processing facilities, where environmental conditions are characterized by high chemical and biological aggressiveness. In such environments, concrete surfaces are continuously or periodically exposed to liquid media containing organic acids and microorganisms, as well as to significant variations in temperature and humidity. These factors lead to accelerated degradation processes, manifes...

Cement-based construction materials, such as mortars and concretes, are frequently exposed to aggressive environments containing chloride and sulfate ions, leading to corrosion processes that significantly affect their durability and structural performance. In many cases, these degradation phenomena are intensified in industrial environments or coastal areas, where the concentration of aggressive agents is higher. In recent years, the use of nanoparticles as functional additives in cementitious materials has gaine...

In the context of sustainable development and the urgent need to reduce the environmental footprint of the construction industry, the reuse of recycled concrete waste in mortar formulations has emerged as a promising strategy. However, the incorporation of such waste materials typically leads to diminished mechanical performance, primarily due to the reduced chemical activity of the recycled aggregates. To address this drawback, nanoparticles have gained attention as functional additives capable of restoring or ev...

The accumulation of glass waste has become a significant environmental concern worldwide, with millions of tons of glass discarded annually. Although glass is 100% recyclable, a substantial proportion still ends up in landfills due to inefficient collection systems, high processing costs, or limited market demand for recycled glass. In recent years, researchers and environmental policymakers have intensified efforts to identify alternative applications for this inert but non-biodegradable material, particularly in...

In an increasingly competitive economy, we are facing fierce competition in the construction materials industry, where the use of recyclable waste from demolitions has become more than a necessity. The compensation for the loss of certain properties, which could otherwise lead to a reduction in mechanical characteristics, has been achieved through the addition of nanoparticles with superior qualities. This paper will present the main nanoparticles introduced as subtle additives (ranging from 0.01 percent to a maxi...

The process of selecting and prioritizing investment project proposals in construction is characterized by multiple objectives and uncertainties due to incomplete information and the multitude and dynamics of factors that can intervene. Knowing their significance and influence on the final investment decision, it is a complex problem that requires a multi-critical analysis with both quantitative and qualitative factors, necessary for a good quantification and evaluation. In recent years, the increase in the comple...