Paz, Diogo Henrique Fernandes da (2019) Development of a system to support integrated management of construction and demolition waste. PhD thesis, Universidade Federal de Pernambuco, Brazil.
Abstract
Construction and Demolition Wastes (CDW) are currently one of the biggest problems in urban areas, since they are generated in significant volumes and do not have a suitable final destination. One of the ways to minimize the CDW impacts is through the implementation of a integrated management, which requires an approach supported by decision-making tools. Thus, this research aims to develop a computational system to assist the construction and demolition waste integrated management for brazilian municipalities, validated in the city of Recife, Pernambuco. For this, a diagnosis of CDW municipal management in Recife was initially carried out, in order to identify the main challenges of CDW integrated management. Sustainability indicators were defined to classify the CDW municipal management; a mapping of 565 points of CDW illegal deposition in the city was carried out, and a method was developed to classify the environmental risks from illegal deposition. Sites were also proposed for the installation of new eco-stations and Transhipment and Waste Sorting Areas (TWSA) in the city, as well as construction waste landfills and waste treatment plants in the Metropolitan Region of Recife (MRR). Subsequently, a diagnosis was made of CDW generation in 34 construction sites, in order to structure a database to, after statistical treatment, compose the database of a CDW generation mathematical model on sites. For the statistical treatment, a descriptive analysis of CDW generation data of the sites, analysis of variance anw was verified the applicability of the multiple linear regression for the dataset used. The mathematical model was developed in a spreadsheet, being validated in 13 works that did not compose the database of model calibration step. Finally, the Construction Waste Integrated Management System (SIGERCON) was developed. The conceptual model and the instantiation of the three system modules were established. From the structuring stage, the software coding was performed. After coding phase, the integration of the modules and the software validation was performed to verify the applicability of SIGERCON. The results showed that Recife has a median CDW management, mapping a total of 565 illegal dumping sites, being 53 points with high environmental risk. It was proposed the installation of 20 new eco-stations for the city and two TWSA. Regarding the generation of waste in construction sites, was verified that the generation rate varied between 29 and 157 kg/m2 , so that it is necessary to consider the size of the site in the estimate of CDW generation. The average cost of CDW management was R$ 61,935.00, with a cost per m2 of R$ 4.86. The developed mathematical model was validated with data from 9 of the 13 sites used. SIGERCON was tested and validated in the municipality of Jaboatão dos Guararapes. It is concluded that the support system favors the implementation of CDW integrated management in brazilian municipalities, by having control and optimization tools, as well as a database that allows the municipalities to adapt to the reality of the region.
| Item Type: | Thesis (Doctoral) |
|---|---|
| Thesis advisor: | Sobral, Maria do Carmo Martins |
| Uncontrolled Keywords: | integrated management; decision support system; construction waste |
| Index terms: | validation, decision-making, integration, urban area, mapping, municipality, landfill, environmental risk, dataset, decision support, management system, sustainability indicator, mathematical model, construction site, construction and demolition, module, construction waste, estimate, implementation, variance, spreadsheet, database |
| Subjects: | urban form and morphology, spatial and geospatial analysis, architectural elements, sustainability assessment, financial risk, contractual arrangements, waste management, decision analysis, measurement and scaling, data management, organizational analysis, administrative law, management, professional development, work location, financial and cost management, data science, mathematical modelling |
| Topics: | Information Management, Research Practice, Cost Management, Site Management, Organizational Design, Urban Studies, Digital Applications, Design Practice, Sustainability, Procurement, Risk Management, Legal Issues |
| Descriptive scope: | 3 PCA |
N.B. Descriptive scope is a count of how many of the five facets of empirical research are indicated by the words used in title, abstract and keywords. It is not intended as a judgement on the research; merely a count of the kind of word we would expect to indicate Phenomenon, Concepts, Theoretical framing, Empirical techniques, Analytical techniques. If all five are present, then a code of “5 PCTEA” will indicate this. If you feel the coding for this record is questionable, we welcome discussion around the terms we matched or the way we categorized them. The facet you would expect may not be coded, or a facet may be coded inappropriately. This can also bear on a larger question, of which facets should be treated as defining in construction management research. Please get in touch, and we will look at it. More details here