Abstract
Chile is the first Latin American country to begin an “ecological overdraft”, as established by the Global Footprint Network (GFN). This implies that the country’s ecological footprint has exceeded the global average bio-capacity. The consumption of natural aggregates for construction in Chile has grown by around 6.6% in the last year, with around 120 million tons being extracted. Given the above, it is important to seek alternatives that help to minimize the problem of resource scarcity, as well as the recovery of industrial by-products and/or waste. The Chilean forestry sector has also grown in recent years, generating approximately 4000 metric tons of waste in 2018, which was deposited in landfills or disposed of on forest roads. The present research is focused on the reuse and possible recovery of ash from the incineration of cellulose as a filler in bituminous mixtures. We analyze the adhesiveness of the filler/bitumen system in dry and wet states, based on the Cantabro wear loss test. The results obtained show that the limit of the relation between the volumetric concentration and critical concentration (Cv/Cs) is 1 for the addition of ash and that concentrations lower than or equal to this value present controlled losses, with 1.00 being the optimal (Cv/Cs) ratio that allows better behavior against the effect of water.
Highlights
In recent years, Chile has become one of fastest-growing Latin American countries in terms of population
Regarding the study conducted on the resistance of bituminous mixtures with cellulose ash to ageing, the results indicated that this parameter increased by 3.3%, minimizing early cracking of the pavement
This study was based on an analysis of the behavior of bituminous mixtures made Thiswhen studyfaced was based on effects an analysis of theTo behavior of bituminous made with ash with the of water
Summary
Chile has become one of fastest-growing Latin American countries in terms of population. According to the National Institute of Statistics (INE), in 2019, the country exceeded million inhabitants, with 10.6% growth in the total population over the last years [1]. In 2018, the National Automotive Association of Chile (ANAC) recorded a 10% increase in the vehicle fleet, indicating that there were a total of 5.5 million motor vehicles in the country [2]. This growth must be accompanied by government investment in road infrastructure, maintenance, and conservation, not to mention research, innovation, and development to promote new techniques and procedures focused on society, the economy, and the environment [3]. According to Greenpeace’s 2020 annual report, Chile is the first Latin American country to fall into an “ecological overdraft”, which indicates that no environmental saving capacity is being generated, clearly endangering the resources
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