Abstract
Demolition activity plays an important role in the total energy consumption of the construction industry in the European Union. The indiscriminate use of non-renewable raw materials, energy consumption, and unsustainable design has led to a redefinition of the criteria to ensure environmental protection. This article introduces an experimental plan that determines the viability of a new type of construction material, obtained from crushed brick waste, to be introduced into the construction market. The potential of crushed brick waste as a raw material in the production of building precast products, obtained by curing a geopolymeric blend at 60 °C for 3 days, has been exploited. Geopolymers represent an important alternative in reducing emissions and energy consumption, whilst, at the same time, achieving a considerable mechanical performance. The results obtained from this study show that the geopolymers produced from crushed brick were characterized by good properties in terms of open porosity, water absorption, mechanical strength, and surface resistance values when compared to building materials produced using traditional technologies.
Highlights
The construction industry occupies an important position in the production of waste materials from construction and demolition activities, with around one-third of the European Union’s total waste represented by this so-called Construction and Demolition Waste (CDW)
Brick Waste the derived from the previous strength tests
It the is worth when clay are at 1:5 a constant rate, two amount of alkaline and alkaline earth oxides
Summary
The construction industry occupies an important position in the production of waste materials from construction and demolition activities, with around one-third of the European Union’s total waste represented by this so-called Construction and Demolition Waste (CDW). Known materials range from plastics to wood and metals, but it is the inert materials category that has the highest percentage weight, reaching 75–80% of the total CDW weight [1,2]. For this reason, the EU has considered the flow of CDW as a priority stream for action. Climate change and environmental issues are a wake-up call to the impoverishment of resources due, above all, to the exploitation of raw materials In this sense, the quantity of second-hand materials coming from construction and demolition operations represents a source of great value.
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