The objective of this work was to study the partial substitution of the natural (sand) aggregate ... more The objective of this work was to study the partial substitution of the natural (sand) aggregate by ash from sugarcane bagasse (CBC), by mass, in the proportions of 10% and 20% for the preparation of pieces of concrete for interlocking pavement. Firstly, the pilot trait was developed, this one still withoutthe addition of CBC, which served as parameter for comparisons. The properties of the aggregates and the concrete were analyzed through standardized tests of granulometry, specific mass, slump test, compressive strength and water absorption. As for the values of compressive strength, the 10% substitution trait presented the best result of compressive strength, being 15% superior to the pilot trace. As for absorption, an increase in permeability was observed as the addition of CBC increased. Finally, it wasconcluded that the satisfactory trait in relation to the properties analyzed was the 10% substitution trait.
As ocas são construções típicas indígenas feitas com elementos naturais, tais como, madeiras, bam... more As ocas são construções típicas indígenas feitas com elementos naturais, tais como, madeiras, bambus, sapê, entre outros. Diversos povos indígenas já habitavam o Brasil antes da chegada dos portugueses em 1500, sendo que as ocas eram utilizadas essencialmente como moradias coletivas. Com o passar dos anos, devido ao processo de expansão urbana, desmatamento e evolução dos sistemas construtivos, a quantidade dessas ocas vêm diminuindo significativamente. Desse modo, construção de uma oca para alunos da educação infantil é uma forma de trazer memórias que representam a grande quantidade de povos indígenas do Brasil, valorizando sua cultura e tornando possível uma conexão entre a educação socioambiental no ambiente pedagógico exploratório e lazer. Neste cenário, objetivo deste trabalho foi o desenvolvimento do projeto de uma oca lúdica no CEI “Maria Alice Silvestre” (antigo CEI-UFGD) com estrutura de madeira e bambu. A metodologia do projeto foi composta por uma análise preliminar, ela...
The expansion of cities contributed to the problems related to the accumulation of waste and lack... more The expansion of cities contributed to the problems related to the accumulation of waste and lack of control over its management, there are still around 2400 dumps or uncontrolled landfills in Brazil. There is a large volume of polyethylene terephthalate (PET) improperly discarded. In turn, the construction industry has been looking for sustainable ways to produce concrete. This work deals with the analysis of the replacement of PET as a fine aggregate in concrete in the proportions of 5% and 15%. PET particles pass more than 75% in the 2.36 mm opening sieve and have more than 99% of their particle size retained in the 0.15 mm opening sieve. Concrete properties, compressive strength, tensile strength, water absorption and void ratio were evaluated and compared with the reference mix. In total, 45 specimens cast in concrete were used to complete the experiment. The results obtained showed that mixture compositions that incorporate PET as fine aggregates decrease compressive and tensi...
The lack of pavement on urban roads is a problem that still affects manylocalities of the country... more The lack of pavement on urban roads is a problem that still affects manylocalities of the country, generating a decline in development and harmful consequences in several areas. Another problem that affects society is related to the incorrect disposal of Construction and Demolition Waste (CDW), which volume is extremely significant and the possibility of recycling (not commonly used, despite current policies that request it) is practicable, when ruled by studies and reviews that support it correctly. The objective of this study was to establish a collaborative approach to solve the two problems mentioned above by replacing the small natural aggregate with small-recycled aggregate in the concrete that composes interlocked paving. It was estimated that these would attend the current standards and correspond to the characteristics proposed, such as resistance to minimum compression of 35 MPa and maximum absorption of 6%
The anchoring of reinforcement inconcrete is fundamental for the elements to work together, enabl... more The anchoring of reinforcement inconcrete is fundamental for the elements to work together, enabling the full transfer of the applicant efforts, this means that there should be no slip between the concrete and its reinforcement. This study aimed to apply an efficient method to increase anchorage and adherence between bamboo and concrete. Based on ABNT NBR 6118:2014, has developed three slabs type and different physical interventions were applied in the bamboo to increase anchorage and adherence between bamboo and concrete. The prototypes were submitted to slump tests and compressive strength tests on the concrete used, controlled by the ABNT NBR NM 67:1998 and ABNT NBR 5739:2007, respectively.The results enabled the use of the additional elements, being the slabs with application of the anchorage and adherence techniques, the superior mechanical resistance of a conventional solid slab developed in the same standards, indicating feasibility for the application of both methods.
The impacts caused by RCCs are growing exponentially each year, which is why it is necessary to c... more The impacts caused by RCCs are growing exponentially each year, which is why it is necessary to create measures to mitigate and minimize such an effect. The purpose of this research was to evaluate the physicalmechanical properties of the concrete from the gradual replacement of the natural fine aggregate by the recycled aggregate. The recycled concrete was made with substitutions of 20, 40, 60, 80 and 100% of recycled aggregate, whose water / cement factor was 0.7. Test specimens were produced and after the cure time of 7, 14 and 28 days the specimens were ruptured. It was possible to analyze that with the increase of the recycled aggregate substitution, the concrete strength increased, but did not reach an average resistance of 20 Mpa. Therefore it is possible to conclude that the use of recycled aggregate in the manufacture of low resistance concrete is.
The objective of this work was to study the partial substitution of the natural (sand) aggregate ... more The objective of this work was to study the partial substitution of the natural (sand) aggregate by ash from sugarcane bagasse (CBC), by mass, in the proportions of 10% and 20% for the preparation of pieces of concrete for interlocking pavement. Firstly, the pilot trait was developed, this one still withoutthe addition of CBC, which served as parameter for comparisons. The properties of the aggregates and the concrete were analyzed through standardized tests of granulometry, specific mass, slump test, compressive strength and water absorption. As for the values of compressive strength, the 10% substitution trait presented the best result of compressive strength, being 15% superior to the pilot trace. As for absorption, an increase in permeability was observed as the addition of CBC increased. Finally, it wasconcluded that the satisfactory trait in relation to the properties analyzed was the 10% substitution trait.
As ocas são construções típicas indígenas feitas com elementos naturais, tais como, madeiras, bam... more As ocas são construções típicas indígenas feitas com elementos naturais, tais como, madeiras, bambus, sapê, entre outros. Diversos povos indígenas já habitavam o Brasil antes da chegada dos portugueses em 1500, sendo que as ocas eram utilizadas essencialmente como moradias coletivas. Com o passar dos anos, devido ao processo de expansão urbana, desmatamento e evolução dos sistemas construtivos, a quantidade dessas ocas vêm diminuindo significativamente. Desse modo, construção de uma oca para alunos da educação infantil é uma forma de trazer memórias que representam a grande quantidade de povos indígenas do Brasil, valorizando sua cultura e tornando possível uma conexão entre a educação socioambiental no ambiente pedagógico exploratório e lazer. Neste cenário, objetivo deste trabalho foi o desenvolvimento do projeto de uma oca lúdica no CEI “Maria Alice Silvestre” (antigo CEI-UFGD) com estrutura de madeira e bambu. A metodologia do projeto foi composta por uma análise preliminar, ela...
The expansion of cities contributed to the problems related to the accumulation of waste and lack... more The expansion of cities contributed to the problems related to the accumulation of waste and lack of control over its management, there are still around 2400 dumps or uncontrolled landfills in Brazil. There is a large volume of polyethylene terephthalate (PET) improperly discarded. In turn, the construction industry has been looking for sustainable ways to produce concrete. This work deals with the analysis of the replacement of PET as a fine aggregate in concrete in the proportions of 5% and 15%. PET particles pass more than 75% in the 2.36 mm opening sieve and have more than 99% of their particle size retained in the 0.15 mm opening sieve. Concrete properties, compressive strength, tensile strength, water absorption and void ratio were evaluated and compared with the reference mix. In total, 45 specimens cast in concrete were used to complete the experiment. The results obtained showed that mixture compositions that incorporate PET as fine aggregates decrease compressive and tensi...
The lack of pavement on urban roads is a problem that still affects manylocalities of the country... more The lack of pavement on urban roads is a problem that still affects manylocalities of the country, generating a decline in development and harmful consequences in several areas. Another problem that affects society is related to the incorrect disposal of Construction and Demolition Waste (CDW), which volume is extremely significant and the possibility of recycling (not commonly used, despite current policies that request it) is practicable, when ruled by studies and reviews that support it correctly. The objective of this study was to establish a collaborative approach to solve the two problems mentioned above by replacing the small natural aggregate with small-recycled aggregate in the concrete that composes interlocked paving. It was estimated that these would attend the current standards and correspond to the characteristics proposed, such as resistance to minimum compression of 35 MPa and maximum absorption of 6%
The anchoring of reinforcement inconcrete is fundamental for the elements to work together, enabl... more The anchoring of reinforcement inconcrete is fundamental for the elements to work together, enabling the full transfer of the applicant efforts, this means that there should be no slip between the concrete and its reinforcement. This study aimed to apply an efficient method to increase anchorage and adherence between bamboo and concrete. Based on ABNT NBR 6118:2014, has developed three slabs type and different physical interventions were applied in the bamboo to increase anchorage and adherence between bamboo and concrete. The prototypes were submitted to slump tests and compressive strength tests on the concrete used, controlled by the ABNT NBR NM 67:1998 and ABNT NBR 5739:2007, respectively.The results enabled the use of the additional elements, being the slabs with application of the anchorage and adherence techniques, the superior mechanical resistance of a conventional solid slab developed in the same standards, indicating feasibility for the application of both methods.
The impacts caused by RCCs are growing exponentially each year, which is why it is necessary to c... more The impacts caused by RCCs are growing exponentially each year, which is why it is necessary to create measures to mitigate and minimize such an effect. The purpose of this research was to evaluate the physicalmechanical properties of the concrete from the gradual replacement of the natural fine aggregate by the recycled aggregate. The recycled concrete was made with substitutions of 20, 40, 60, 80 and 100% of recycled aggregate, whose water / cement factor was 0.7. Test specimens were produced and after the cure time of 7, 14 and 28 days the specimens were ruptured. It was possible to analyze that with the increase of the recycled aggregate substitution, the concrete strength increased, but did not reach an average resistance of 20 Mpa. Therefore it is possible to conclude that the use of recycled aggregate in the manufacture of low resistance concrete is.
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