Experimental analysis of the reuse of waste from prefabricated concrete piles: case of a port work

Construction waste in large works is poorly studied. Port works have peculiar characteristics and it is interesting that designers have indicators of waste generation. In this work, the generation of waste from the activity of logging concrete piles and their reuse process was analyzed, generating indicators for the project. The research methods covered the quantification of the reuse of piles in the activity itself and the quantification of waste intended for disposal. Results showed that 49.2% of piles used leftovers, which represented 12.98% of the total length driven (242210 m). The study showed that the average apparent density of concrete waste from piles comminution is 0.47 ± 0.02 tons.m-1 on average. For the metal scrap 0.70 tons m-³. The results showed the great potential for reuse of materials that has the activity of driving concrete piles, which is environmentally desirable. It is concluded that the indicators obtained are an important instrument for waste area designers, especially in the area of port buildings, where there are few data available in the literature.