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Corrosão de armaduras em meios aquosos e porosos de argamassas com agregados alternativos (ACBC e LETA)
(Universidade Federal de São Carlos, 2022-06-15) Rezende, Mariana de Almeida Motta; Sales, Almir; https://lattes.cnpq.br/7377787166073311; https://lattes.cnpq.br/5831585097579532
About 4% of the GDP of industrialized countries is destined to the maintenance of materials deteriorated by corrosion and the corrosion of reinforcements contributes to a significant portion of this percentage. Another problem in civil construction is the exacerbated use of natural resources, such as sand and gravel, used as aggregates for the production of concrete. Over time, these resources became scarce and the use of recycled aggregates became necessary. The author's research group has been working with eco-efficient waste for two decades, and this knowledge was combined with the general objective of this work, which was to evaluate the corrosion of reinforcement in cementitious composites with the incorporation of two residues separately: sugarcane bagasse ash sand (SBAS) and water treatment sludge (WTS), both used as fine aggregate in concrete pore solutions (CPS) and in cement composite samples. The innovation of this work lies in the use of the corrosion assessment technique in CPS for concrete with residues. For this, carbon steel samples were immersed in pore solutions of cementitious composites with SBAS and WTS in pure solutions and solutions contaminated with aggressive agents to the reinforcement (chlorides and carbonates). In an electrochemical cell, the monitoring of the open circuit potential, the electrochemical impedance spectroscopy and the linear scanning polarization were carried out to verify the corrosion of the steel in the different solutions studied. In addition, the results obtained were compared to the results of similar evaluation on cementitious composites of the same traces of WTS and SBAS. Based on the analyzes carried out, it was possible to conclude that the incorporation of SBAS is beneficial in terms of corrosion resistance of reinforcements, and can be used as a fine aggregate to replace 30% by mass with natural sand in concrete for structural purposes in marine environments. However, 3% of LETA replacing natural sand in concrete caused the passivation film not to form properly on the reinforcement. Therefore, in this case, concrete with this WTS percentage cannot be recommended for structural purposes in a marine environment.
Plano de carreira do magistério público municipal: o desenvolvimento profissional docente na Prefeitura Municipal de Piracicaba
(Universidade Federal de São Carlos, 2022-06-15) Campos, Renan Romero de; Carvalho, Angela Maria Carneiro de; https://lattes.cnpq.br/3860073481051842; https://orcid.org/0000-0002-0117-4518; https://lattes.cnpq.br/7031600769445204; https://orcid.org/0000-0002-9865-3899
The work proposes to understand how the Career Plan for the Public Magisterium in the Municipality of Piracicaba is being established. This is an instrument of the Human Resources Administration, foreseen by the Brazilian educational legislation for teaching categories, especially for Basic Education. The objective is to understand the specificities of the elaboration of a Career Plan for Public Teaching in the Municipality of Piracicaba, through the analysis of the compatibility of incentives for professional development, in a career, with the organizational objectives of the City Hall. The study focuses on a literature review on the topic of strategic management of people in the public sector, the study of positions and careers, and also the concept of teacher professional development. The Systematic Bibliographic Review focused on career planning in public education was used to map the field of study. As qualitative and quantitative descriptive research strategies, data triangulation is built around 1) Participant Observation, through the political-institutional context of the Municipality of Piracicaba and the Municipal Department of Education aligned with the researcher's experience as a natural member of the Network Municipal Education; 2) Documentary Analysis that breaks down Complementary Law Projects nº 11/2004 and nº 17/2017, which deal with the legislative matter object of this study, in Piracicaba, and were both rejected and archived; and 3) the application of a Survey, through a questionnaire proposed to the target audience of Piracicaban teachers, whose results show an average profile of municipal teachers. From the triangulation of data between Participant Observation, Document Analysis and Survey it led to the conclusion that the City Hall offered career plans consistent with the professional development of teachers, valuing career progression based on academic title, length of service, functional performance and continuing education courses for professional improvement and qualification. The plans, however, have yet to be approved and implemented. The City Hall's objectives, in this sense, consist of complying with current educational legislation, consolidating the structure of the Municipal Education Network and valuing teaching professionals. At the end, possibilities for future studies are proposed related to the teacher's participation in the elaboration of these plans, the legal forecast of career plans for other servants of Basic Education, and the possibilities of access to school management positions.