No abstract

In search of the reuse of waste from civil construction, studies are presented as an alternative on the insertion of this waste into materials so that they become ecologically viable and at a lower cost. In this scope, there is the red ceramic waste (RCW), which is largely produced both in renovation works and in the stage of transporting construction components such as bricks, slabs, and floors. On the other hand, the use of cement is of great proportions, which raises concerns about the excessive consumption of non-renewable natural resources, especially in large-scale projects. Thus, the study aimed to evaluate the mechanical properties of compressive strength of concrete with partial replacement of cement by RCW and to verify the influence at different breakage ages (7, 14, 21, and 28 days). Five mixes were used, the first with 100% cement, and the others with crushed RCW to replace 5%, 10%, 15%, and 20% of the cement, and the resistance obtained according to percentages and ages was also verified of RCW through the uniaxial compression test. Thus, it was observed that for replacements of up to 15%, the strength losses were not significant, suggesting the feasibility of its use in works with high concrete demands, such as in dams.

Responsible for high rates of morbidity and mortality, amputation has constituted a great public health problem, which burdens the social security costs and the health system. We aimed to describe the epidemiological profile of people who suffered amputation in a public hospital in the interior of Brazil, which is a reference for a macroregion.This was a retrospective and descriptive epidemiological study, carried out by analyzing the medical records of 214 patients who underwent amputations of various causes, between the years 2012 and 2019 at the Municipal Hospital Dr. Raimundo Gobira, located in Teófilo Otoni, Minas Gerais, Brazil. Statistical analysis of Pearson's correlation, mean and standard deviation was performed. A significance level of 5% was adopted. Of the 214 cases of amputations, the majority were men (91.12%), aged 19-30 years (21.96%), from the urban area (63.45%). Of these, 46.26% were associated with work. The maquita was the tool responsible for most injuries (17.35%). The fingers of the left hand were the main body segments affected (23.60%). Most of the subjects were residents of Teófilo Otoni (34.57%). Approximately 20.10% of amputations occurred in the year 2018. Statistical significance was not demonstrated when age and length of hospital stay were correlated, although the results point to a longer length of stay as age increases. The results made it possible to understand the epidemiological reality of the causes of amputations performed in the region and provide public managers with the opportunity to make decisions based on prevention.

The bridges are important structures for the development of cities, they allow access to places previously isolated due to geological non-conformities or by obstacles such as rivers and valleys, facilitating the access of products and the movement of vehicles and people. The conservation, maintenance, and recovery of these structures are essential for their proper functioning and the safety of their users. However, it is not uncommon to find bridges out of their ideal state of use, presenting a lot of pathologies, and, for these pathologies to be repaired, it can be used various recovery techniques and kinds of treatments. This study aims to analyze the pathologies and their possible options of restorations on the bridge located at João Lopes da Silva Street, Manoel Pimenta neighborhood, in the city of Teófilo Otoni - Brazil. The identification and classification of the pathologies and nonconformities found in the artwork have been carried out. The analyzed bridge needs maintenance so that its functionality is not affected, requiring appropriated recovery techniques such as the use of epoxy resin in cracks, removal of corrosion from reinforcement and application of anticorrosive paints, scarification of concrete in the area in which there is disaggregation, and concreting through forms and drainage devices compatible with local needs, providing a longer life span and avoiding inconvenience for users.

It is a function of the highways to provide comfort, safety, and good rolling conditions to users. Therefore, the roads must be correctly designed showing adequate quality and durability for use. However, what is observed in Brazil is that most of the existing roads are not in good condition due to the number of pathologies found in them, bringing discomfort and insecurity to users. Bearing in mind that the flexible floor is the most used in the country, it is necessary to study the defects found during its useful life, which may be of structural or functional origin, to offer adequate maintenance and possibly better-rolling conditions to those who travel through it. Thus, the present study tackles pathological problems observed on a flexible pavement in the Municipality of Teófilo Otoni, Brazil, its possible causes, and some proposals for measures to be taken in the construction and maintenance processes to reduce the appearance of these pathologies. In addition, the identification and classification of pathologies and nonconformities found in the studied places were carried out. Thus, there was a need for maintenance so that its functionality is not affected, requiring the use of recovery techniques through resurfacing or a sealing layer, improving drainage and milling, which provides longer life and avoids inconvenience to users.