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EN
In several countries, the use of recycled coarse aggregate in construction materials is recommended; however, the use of organic matter is restricted because it can produce significant changes in compressive strength. In terms of reaching a conclusive viewpoint regarding the research topic, secondary data collection analysis has been selected. It is essential to utilize the recycled and by-products wastages to prepare alternative materials as this can be useful in generating a significant amount of fine concrete aggregate. As a result, it reduces the extreme exploration of essential natural resources and meets the requirements of natural concrete aggregates by using the alternative and recycled fine concrete aggregate. Moreover, the alternative materials come with similar properties and physical behaviour as they sustain the durability and compound stability of the concrete aggregate through the use of recycled cement. The disposal of industrial wastes can cause extreme environmental harm that can be reduced via recycled cement. However, it has been noted that the presence of harmful materials can result in issues regarding durability. Thus, it is essential to arrange materials for recycled cement that can be effective for construction activities. In order to maintain environmental sustainability and reduce environmental hazards, it is important to utilize the wastages for generating alternative concrete aggregates such as crushed rocks. Thus, this paper reviews the environmental effects of concrete waste pollutants and its sustainable reutilization to promote a cleaner environment and offer benefits to the construction industries with a positive effect.
EN
Today, the world's transport systems are highly dependent on petroleum fuel. So, we can ask how large a share of the world's liquid fuel supply can be provided by biofuels? This question is crucial to understand that biofuels are potential to provide an environmentally sustainable alternative to the petroleum fuels. Especially in cities, where the people suffer most from congestion, poor air quality and noise, the public transport should be more widely available. Preparing the European Transport System for the future European Commission stated that "mobility is vital for the economy and the quality of life of citizens". In this paper some aspects of European Transport Policy aiming implementation of a competitive low carbon economy in 2050 were presented.
PL
Światowe systemy transportowe są obecnie bardzo uzależnione od paliw ropopochodnych. Można więc zapytać, jak duży udział w światowych dostawach paliw płynnych może być zastąpiony biopaliwami? W pytaniu tym kryje się odpowiedź, że biopaliwa są paliwami odnawialnymi, stanowiącymi alternatywę dla paliw ropopochodnych - szczególnie w miastach, gdzie ludzie odczuwają zatłoczenie, złą jakość powietrza i hałas, a transport publiczny powinien być szeroko dostępny. Przygotowując Europejski System Transportowy na przyszłość, Komisja Europejska oświadczyła, że "mobilność jest istotna dla gospodarki i jakości życia obywateli". W opracowaniu tym zaprezentowano kilka aspektów Unijnej Polityki Transportowej ukierunkowanej na wprowadzenie konkurencyjnej gospodarki niskowęglowej w 2050 roku.
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