Navegando por Assunto "Agregados (Materiais de construção)"

Agora exibindo 1 - 17 de 17

Acesso aberto (Open Access)
Avaliação da durabilidade de concretos produzidos com agregado miúdo reciclado de cerâmica vermelha
(Universidade Federal do Pará, 2016-02-05) MORAES, Ruan Fabrício Gonçalves; SOUZA, Paulo Sérgio Lima; http://lattes.cnpq.br/4933212993218783
The generation of waste from civil construction (WCC) in Brazil and in the world are of great proportions. However, its reuse does not occur in the same proportions that are generated by construction, is added to this, the need to find solutions for the landfilling of these wastes, unsustainable consumption of natural resources, where deposits already present signals aggregate shortage. Therefore, the use of red ceramic as recycled aggregate, reduces costs for the production of concrete, brings awareness of environmental cooperation and sustainability. In this scenario, the literature is still scarce in relation to the concrete durability properties for this kind of aggregate. Thus, this study aimed to improve and disseminate knowledge about these waste in construction. To this end, mixtures were made with water / cement ratio of 0.45; 0.55 and 0.65, where the aggregate has been replaced by natural fine ceramic aggregate in 0%, 12.5% and 25%, each percentage was subjected to pre-wetting rate of 40%, 60% and 80%. Subsequently, the durability of concrete produced with fine ceramic aggregate (FCA) was evaluated through capillary absorption, carbonation, electrical resistivity and chloride ion penetration. With the results obtained it can be concluded that the slump test was satisfactory in most mixtures, with respect to durability, in general, all mixtures with ceramic recycled aggregate had higher durability than the reference, especially in mixtures with 25% AMC. Pre-wetting rates were effective in most mixtures, showing satisfactory influence on the final results in all tests. So it managed to show great feasibility of using this waste in concrete, improving their performance.
Acesso aberto (Open Access)
Caracterização dos agregados da região do baixo Amazonas: elaboração de traços para a produção de blocos de concreto estrutural
(Universidade Federal do Pará, 2015-07-03) NEVES, Paulo Henrique Lobo; MACEDO, Alcebíades Negrão; http://lattes.cnpq.br/8313864897400179
With the growing demand for aggregates for the construction industry in the city of Santarém and surrounding cities, and with the emergence of construction processes still little known in the region, such as the use of concrete blocks, the need to develop an experimental research for verification arises insusceptible of the characteristics of aggregates to be used in order to study the feasibility of applying them to the production of concrete blocks with structural function, class B – 4,0MPa ≤ fbk <8.00 MPa. A complete characterization, identification of exploration areas with their distances to block production sites in the city Santarém was approached. With the results were developed traits with the dry mixture of aggregates depending on their characteristics seeking to optimize and better compactness thereof, to more economic traits and which give the final product a better finish and resistance. The experiment was developed from a standard feature used in the city's factories and which served as a benchmark for the other elaborate experimental features, complying with the steps below. In the first stage was carried out to identify the aggregate producing sources in the city of Santarém and surrounding areas. Following a second stage, held expeditions collecting and packaging the samples. For the latest steps were carried out the characterization tests being: Kids grain size and coarse aggregates, mass determination and specifies apparent, fine materials and abrasion Los Angeles. Later traces were designed with optimized framework in the ideal particle size range, with the production of concrete blocks with structural function of families 14x29 and 14x39. In the last step tests were performed to verify the dimensional analysis, absorption index and resistance to compression individual blocks. Prior knowledge of the aggregates and framed adequate mixing in the ideal particle size range provided the reduction in the consumption of cement and favored the final product quality improving all its performance parameters.
Acesso aberto (Open Access)
Caracterização mineralogica do agregado obtido a partir da lama vermelha do processo bayer
(Universidade Federal do Pará, 2014-12-27) REIS, André Wilson da Cruz; NEVES, Roberto de Freitas; http://lattes.cnpq.br/9559386620588673; MARTELLI, Marlice Cruz; http://lattes.cnpq.br/1213009262936026
The industrial activities increasingly generate a lot of waste and by-products being stored in the environment, with physicochemical characteristics which can most often be reused. The red mud residue from the Bayer process, is being studied for use in the production of synthetic aggregates, which aims to replace natural aggregates used in construction. This work studies the physical, chemical and mineralogical characteristics of the aggregates synthesized from a mixture of red mud, clay, sand and charcoal in 4 compositions, varying amounts of red mud and clay. The raw materials were pretreated and analyzed by X-ray fluorescence, X - ray diffraction, thermal and particle size analysis. The samples were calcined at 1200 °C for 4 hours. Then subjected to analysis by X-ray diffraction, X- ray fluorescence, differential thermal analysis and scanning for characterization and physical tests electron microscopy. For the study of the observation of synthetic mullite aggregate specimens embedded in resin, and adding 5% HF for 3 to 4 minutes were made. The material presented after sintering, apparent specific gravity average below 2 g\cm3 main crystalline phases by XRD quartz and hematite and the presence of mullite from the HF treatment can be observed.
Acesso aberto (Open Access)
Comportamento mecânico dos efeitos da substituição parcial do cimento por sílica ativa em eco concretos
(Universidade Federal do Pará, 2016-05-27) PIRES, Gabriela de Oliveira; PICANÇO, Marcelo de Souza; http://lattes.cnpq.br/4535052395600357
The exploitation of natural resources for construction purposes generates millions of tons of waste, thus being developed several studies to recycle this waste and the use of construction waste (CW) in the produced concrete. The pig silicon-iron production industry also produces tons of waste, silica fume, which can also be used in concretes and mortars in replacement / addition relative to cement. The main focus of this research is the study of the interaction of concrete produced with natural aggregates and aggregate coarse recycled concrete (CRCA) with partial replacement of silica fume relative to cement. The main objective of this dissertation is to analyze the influence of different levels of silica fume on the mechanical behavior of concrete produced with natural and concrete aggregates produced with different levels of ACRC. The experimental program was divided into three stages, it was first made the characterization of the material and processing of ACRC. The second phase consisted of the elaboration of the traits for different types of concrete by IPT/EPUSP method, and the same divided into three groups with 0%, 25% and 50% use of AGRC in partial replacement of coarse aggregate, each subdivided group levels with 0%, 5% and 10% replacement of cement with the silica fume. After curing the concrete were tested at the ages of 28 and 91 days with the following assays: compressive strength, splitting tensile strength and static modulus of elasticity. With the results can be concluded that mechanical performance of concrete with recycled concrete aggregates increased significantly in relation to the concrete reference (without silica) with respect to compressive strength and tensile and modulus of elasticity.
Acesso aberto (Open Access)
Concretes with red mud coarse aggregates
(2012-06) OLIVEIRA, Dênio Ramam Carvalho de; ROSSI, Carlos Rodrigo Costa
Red mud (RM) is a mineral waste, residue of the Bayer process used to obtain alumina from bauxite. While the exploration of rolled pebble damages the environment and is much more controlled by the government, the huge RM disposal areas do not stop increasing and polluting soil, rivers and groundwater sources in Amazon. In this work, the material mixtures used to produce coarse aggregates presented up to 80% of RM, 30% of metakaolin and 30% of active silica as recycled waste. Several tests were carried out to determine the aggregates physical properties and to evaluate the mechanical performance of the concretes with the new aggregates, including hydraulic abrasion strength, and the results were compared to the reference ones, i.e. rolled pebble concretes. Additionally, the sintering process neutralizes any toxic substance as occur in some RM products like tiles and bricks, and these results have encouraged an industrial or semi-industrial production of RM aggregates for concretes.
Acesso aberto (Open Access)
Efeito da substituição parcial do agregado graúdo por escória de alto-forno nas propriedades mecânicas de concretos
(Universidade Federal do Pará, 2016-04-08) VASCONCELOS, Adriano Luiz Roma; PICANÇO, Marcelo de Souza; http://lattes.cnpq.br/4535052395600357
The blast furnace slag charcoal is waste generated from the production of pig iron in blast furnaces. In the steel mills operating in blast furnace waste generation is approximately 250 kg per ton of pig iron produced. In this sense, the state of Pará figure as the second largest domestic producer of pig iron, reinforcing the importance of having a more detailed scientific research in order to minimize the environmental impact caused by the accumulation of this waste through the development of appropriate applications. In this context the present research aims to determine the mechanical properties of concrete produced with the partial replacement of natural coarse aggregate (AGN) for blast furnace slag (EAF). For this we performed a beneficiation process of the EAF by crushing in a jaw crusher and screening, then it performed a dose of study concrete with 100% AGN was performed immediately replacing (by mass) of natural aggregate by aggregate of blast furnace slag (0% - reference, 20%, 30% and 40%). tests were carried out in the fresh state (consistency) and in the hardened state (compressive strength, tensile strength and modulus of elasticity) of concrete produced with partial replacement of AGN by EAF at the ages of 28 and 63 days as well as scanning electron microstructure (SEM) of concrete. The results showed that the incorporation of the EAF in the mixture caused a gradual decrease in concrete workability. As well as the mechanical performance increased significantly compared to conventional concrete from the incorporation of 30% of EAF. Thus, incorporation of this waste in special concrete production improvements induced responses in all the analyzed mechanical properties when compared to conventional concrete.
Acesso aberto (Open Access)
Efeitos do tipo, tamanho e teor de agregado graudo na resistencia e energia de fratura do concreto
(Universidade Estadual de Campinas, 2004-09-28) POMPEU NETO, Bernardo Borges; DUCATTI, Vitor Antonio; http://lattes.cnpq.br/4679656185466685; FERREIRA, Itamar; http://lattes.cnpq.br/9135346053526486
This thesis presents the results of the experimental study carried out for considering the effects of the type, size and amount of coarse aggregate on the behavior of normal and high strength concretes, and on relationship among the fracture energy and typical mechanical strength of concrete. The experimental concrete mixtures were made with basalt and granite coarse aggregates having maximum size particle 9.5 mm e 19 mm and volumetrically fraction in the mixture ranging from 0.65 to 0.75. The water to cementation materiais ratio ranged from 0.35 to 0.50. The high strength concrete mixtures contained a fixed amount of 10 percent of silica fume in relation to the weight Portland cement used and a proper addition of superplasticizing agent. Sixteen (16) concrete batching, and one hundred and ninety two tests were carried out to measure the mechanical resistance of concrete (compressive strength, flexure strength, spittling tensile strength, modulus of elasticity) and fracture energy. The fracture properties measured in agreement of the RILEM test methods. The concrete compressive strength ranged from 40 to 60 MPa, and from 70 to 110 MPa, for moderate and high strength concretes, respectively, depending on the type of coarse aggregate utilized. The results showed that the concrete resistance (compressive, flexure, spittling tensile) and fracture energy, at given water to binder ratio, depend on type, particle dimension and content of coarse aggregate. The characteristic length of Hülerborg^ fictitions cracks model increases with the variation in the particle dimension of coarse aggregate.
Acesso aberto (Open Access)
Efeitos do tipo, tamanho e teor de agregado graúdo no módulo de deformação do concreto de alta resistência
(2011) POMPEU NETO, Bernardo Borges; OLIVEIRA, Dênio Ramam Carvalho de; RAMOS, Danielle
Concrete, material with heterogeneous and complex composition, is the main structural material applied in the construction industry. From the structural point of view its main property is the mechanical strength. The behavior of concrete based on conceptual studies of granular resistance can lead to a safer structural design and better use of the material. This paper presents the results of a study conducted to evaluate the effects of type, size and content of coarse aggregates on the modulus of deformation of high strength concretes. The concrete mixture studied contains basalt or granite aggregates with maximum dimensions of 9.5 mm and 19.0 mm and water/cement ratio of 0.35. The deformation modulus of the material was determined using the linear length of Load-CMOD curve (displacement of the crack mouth opening) from three point bending tests performed using a middle span cracked beam, following the propositions made by the RILEM 89-FMT technical committee.
Acesso aberto (Open Access)
Estudo da reciclagem de cinza volante para produção de agregado sintético utilizando reator de leito fixo
(Universidade Federal do Pará, 2016-02-16) PEREIRA, Luiz Felipe Silva; SOUZA, José Antônio da Silva; http://lattes.cnpq.br/6157348947425968
The use of such industrial waste boiler fly ash for recycling and reuse, has intensified in recent years much for its physico-chemical characteristics that may result after the processing, in a material with good mechanical strength and can be designed for use in several areas such as construction. In this paper we obtain synthetic aggregates, after sintering process in a fixed bed reactor. For the production of aggregates pellet sewed up mixer from a mixing wheel boiler ash, clay and charcoal. After the process of ceramic sintering were measured material properties such that: porosity, density and water absorption. For the characterization of phases and mineralogical structures of the sintered material, we used the techniques of X-ray diffraction and scanning electron microscopy. Thus the contribution of this work is aimed at reducing environmental impacts, due to the possibility that the material produced has to replace natural aggregates.
Acesso aberto (Open Access)
Estudo da sinterização em reator vertical de leito fixo para produção de agregado sintético
(Universidade Federal do Pará, 2017-06) QUARESMA, Danielly da Silva; NEVES, Alacid do Socorro Siqueira; MELO, Alvino Oliveira; PEREIRA, Luiz Felipe Silva; BEZERRA, Pamela Tais Silva; MACÊDO, Emanuel Negrão; SOUZA, José Antônio da Silva
The synthetic aggregates are being employed in civil construction for the reduction of mineral extraction activities. Within this context, the recycling of industrial waste is the basis of the majority of processes to reduce the exploitation of mineral resources. In this work the sintering in a vertical fixed bed reactor for synthetic aggregate production using 20% pellets and 80% charcoal was studied. The pellets were prepared from a mixture containing clay, charcoal and fly ash. Two experiments varying the speed of air sucking were carried out. The material produced was analyzed by X-ray diffraction, scanning electron microscopy, measures of their ceramic properties, and particle size analysis. The results showed that the solid-state reactions, during the sintering process, were efficient and the produced material was classified as coarse lightweight aggregate. The process is interesting for the sintering of aggregates, and can be controlled by composition, particle size, temperature gradient and gaseous flow.
Acesso aberto (Open Access)
Estudo da sinterização em reator vertical de leito fixo: desenvolvimento de processo para produção de agregado sintético a partir de cinza volante e biomassa
(Universidade Federal do Pará, 2016-05-19) QUARESMA, Danielly da Silva; SOUZA, José Antônio da Silva; http://lattes.cnpq.br/6157348947425968; MACÊDO, Emanuel Negrão; http://lattes.cnpq.br/8718370108324505
The synthetic aggregates have been employed in civil construction as a measure for the reduction of mineral extraction. Within this context, the recycling of industrial waste configured today as the basis of the majority of processes to reduce the exploitation of mineral resources. This paper presents the formulation of a process of environmental character and self-sustaining from an energy point of view parameters to develop a process for the production of synthetic aggregate from fly ash and biomass fixed bed reactor. Thus, for the production of aggregate pellets were made from a mixture of clay, fly ash and charcoal in fixed proportions. The reactor is filled with 20% pellets (6.35 mm > pellet ≥ 4 mm) and 80% charcoal (3.36 mm > carbon ≥ 1.70 mm) rated for promoting the efficiency of combustion reactions and subsequent sintering process at different air velocities (Darcy at 20 °C) of 0.0059 m.s-1 (1º Experiment), 0.0098 m.s-1 (2º Experiment) and 0.017 m.s-1 (3º Experiment). By means of X-ray diffraction and scanning electron microscopy was identified the presence of mullite in synthetic aggregate. This material is characterized as lightweight aggregate, in accordance with current standards. With synthetic aggregates manufactured to lightweight concrete, according to the established standard, without structural function in civil construction, but with applications of moderate resistance and may be used in the counterfloor. The process if showed interesting for the sintering of aggregates with good adhesion to the matrix of cement, and can easily be controlled by composition, granulometry, temperature gradient and gaseous flow, reducing environmental impacts, to the extent that the material produced implies in not extraction of natural aggregates.
Acesso aberto (Open Access)
Estudo e avaliação do uso de resíduos do processo Bayer como matéria-prima na produção de agregados sintéticos para a construção civil
(Universidade Federal do Pará, 2010-03) SOUZA, José Antônio da Silva; QUARESMA, João Nazareno Nonato; http://lattes.cnpq.br/7826389991864785
The large amount of solid waste coming from mines and metallurgical industries became a serious social-environmental problem. The physical and chemical features of this material can raise a great interest in other industries. The ceramic industry might be a great costumer for most of this material, since it can supply the current lack of raw material. The red mud, main industrial residue of the alumina manufacturing, has been a very interesting input for several kinds of aggregates manufacturing used for the concrete production in civil engineering. In this context, this paper deals with studies concerning the red mud recycling to be applied as raw material for the synthetic light aggregate production to be used as an alternative material in the civil construction industry. This is because of its physical-chemical features and the large amount annually produced (around 10 million tons within two factories in the North of Brazil). The studies completed in this work show the feasibility of aggregates manufacturing, with different properties and possibilities. These properties depend on the parameters control such as content of free silica and clay, and the sintering temperature. Such variables allow to perfectly controlling the glassy phase formation which is responsible for the aggregate properties such as: porosity, mechanical resistance and density. This material can be used for conventional or special concretes to supply the civil engineering needs.
Acesso aberto (Open Access)
Extração de areia e seixo: desenvolvimento ou degradação? O caso de Porto Grande/AP
(Universidade Federal do Pará, 2016-06-24) PINHEIRO, Cleane do Socorro da Silva; ROCHA, Gilberto de Miranda; http://lattes.cnpq.br/2436176783315749; MENDES, Ronaldo Lopes Rodrigues; http://lattes.cnpq.br/3384080521072847
This dissertation approaches the aggregate extraction activity for civil construction (sand and pebble) and its relationship with the local development in the municipality of Porto Grande, state of Amapa. The aim is to analyze what socio-environmental impacts were generated by the activity and whether the same has helped or contributed to the local development of this municipality. Mining is an activity that usually causes environmental degradation. In Brazil, there are reports of mining companies who worked in several regions without proper socio-environmental responsibility, with a history of abandonment, leaving behind degraded areas and communities with no prospects of a better future. This research discusses development with the concept of human development, which is considered by the UN as the fulfillment of a set of requirements of well-being and quality of life. For the research, a qualitative assessment of the impacts generated by the sand and pebble extraction on land and the pebble extraction in the bed of the Araguari river was made through the Environmental Impact Assessment (EIA), using the Interaction Matrix method, complemented with the Control List, adapted from previous studies. The interaction matrix identified the relationship of the actions developed in the activity with the environmental factors, and the control list showed the main socio-environmental impacts generated. The correlation of the mining activity with the local development was made from the relationship of social and economic data, as the IFDM, HDI and GDP per capita, with the CFEM. The data indicate that the activity itself has a certain influence on some social and economic indicators, notwithstanding, in areas where the extraction of aggregates occurs there is a large liability, causing an imbalance of the socioeconomic factors with the environment (Income, health and education). This research has supported the preparation of draft of the Term of Reference for the Degraded Areas Recovery Plan (PRAD), which will be submitted to the environmental licensing agency. This draft should be simple to understand and achievable by entrepreneurs, and easy to be monitored by the agency, supporting the execution of an activity with socio-environmental responsibility.
Acesso aberto (Open Access)
Placas cimentícias produzidas com a incorporação de pérolas de poliestireno expandido (EPS)
(Universidade Federal do Pará, 2020-09-01) SILVA, Max Weverton Moreira da; CORDEIRO, Luciana de Nazaré Pinheiro; http://lattes.cnpq.br/9126233381230999; https://orcid.org/0000-0001-7931-4042
The Internal and External Vertical Painel Systems are the parts of the residential building that limit it vertically and delimit its environments, such as facades and walls or internal partitions. The use of seals with lower density than masonry provides a reduction in the mass of this subsystem, reducing the demand for aggregates and binders, in addition to reducing the load on the structure, which allows for optimization of its design. The objective of this work is to verify the viability of the production of cementitious slabs with the incorporation of expanded polystyrene (EPS) beads for application in internal vertical sealing elements. For this, mortars with a 1: 3 line (cement: sand) were produced, with levels of incorporation of expanded polystyrene of 0%, 10%, 20% and 30% in relation to the total volume of materials. Mortars were characterized in the fresh state, through the determination of mass density and consistency index, and in the hardened state, for knowledge of the density properties in the hardened state, resistance to compression and traction, and modulus of elasticity. After knowing the characteristics of the mortars, cementitious slabs were produced, reproducing the same trace in the specimens. The plates were tested for bulk density, water absorption, water permeability and flexural strength. The results of this work demonstrated that the cementitious slabs with the incorporation of up to 20% of EPS present technical characteristics for application in internal vertical sealing systems.
Acesso aberto (Open Access)
Utilização de escória produzida em alto-forno a carvão vegetal como agregado graúdo e miúdo para concreto
(Universidade Federal do Pará, 2014-01-29) ALMEIDA, Gyselle Maciel de; MACEDO, Alcebíades Negrão; http://lattes.cnpq.br/8313864897400179
The steel production requires many stages and generates large quantities of slag, these rising stocks are worrying metallurgists and environmentalists aiming the rational use of this industrial byproduct, in order to minimize possibles environmental problems. In this sense, the civil construction presents a quite fit sector to the use of reuse techniques, of wastes and byproducts, from different industries. Besides the environmental benefits, like the reduction of non-renewable natural resources, the emergence alternative construction materials enables the reduction in the cost of construction, important factor when is evaluated the deficiency existing housing in Brazil. In this research is studied a possible recycling of blast furnace slag, from of hypothesis that is viable its utilization as coarse aggregate and fine aggregate for concretes. Its influence is studied on the characteristic of concrete in fresh state (workability) and in hardened state (axial compressive strength, tensile strength by diametral compression and elastic modulus). In this work the content of substitutions of blast furnace slag was diversified, the water-to-cement ratio and the ages of breaking of the specimens. The used methodology was based on lab rehearsals and in the use of statistical tools to validate the results. With the results obtained in this study, it was found that the use of large amounts of blast furnace slag as coarse and kid aggregate for concrete, in general, had no influence or not exerted a positive influence in the studied properties. We conclude that the findings pointed to the non-technical viability of using this waste as aggregates for concrete.
Acesso aberto (Open Access)
Utilização de rejeito de minério do cobre como agregado miúdo na produção de concreto
(Universidade Federal do Pará, 2019-03-29) SOUSA, Douglas Martins; SOUZA, Paulo Sérgio Lima; http://lattes.cnpq.br/4933212993218783
A major concern with recent accidents involving tailings dams has again raised the urgent need for mining companies to adapt to the fate of ore tailings generated by their operations. In this context, the reuse of these materials in the construction industry shows itself to be an excellent alternative. In this research, it was evaluated the reuse of copper mining waste as a partial substitute for the small aggregates in the production of conventional concretes, aiming the evaluation of the mechanical performance of the concrete produced with this material, also if it is objective, to obtain a material destination sustainable for this material. Only in the mine where the material was collected, is there about 160 million tons of this material accumulated in the mine tailings basin, which shows that there is a considerable source of this material available for reuse. In the experimental program there were four study series: one reference composed of concrete without the addition of the tailings, and another three with 15%, 30% and 45% of substitution to the small aggregates, besides the use of two water ratios /cement. Fresh tests were carried out to evaluate the influence of the reject on the plastic properties of the concrete, and in the hardened state, test specimens were tested at 07 and 28 days for the axial compressive strength, diametral compression traction, traction in flexion and modulus of elasticity. The results obtained were statistically treated through analysis of variance (ANOVA) and proved for the substitution parameter of reject, there was significance. The results showed that the samples with substitution of tailings obtained good results, significantly increasing both the tensile strength and the compressive strength of the concrete when compared with reference series under the same conditions. Therefore, copper reject shows an excellent potential to be reused in the production of concrete, with respect to its effects on the mechanical properties of the concrete, in addition to achieving a more sustainable destination than today.
Acesso aberto (Open Access)
Viabilidade estrutural dos blocos em concreto vazado produzidos com agregados da região do baixo amazonas estado do Pará, para a utilização em alvenaria estrutural
(Universidade Federal do Pará, 2017-03-13) SILVA, Hugo Ricardo Aquino Sousa da; MACEDO, Alcebíades Negrão; http://lattes.cnpq.br/8313864897400179
This study aims to analyze the performance of blocks, prisms and Mini Structural masonry walls made from blocks produced with Concrete aggregates baixo amazonas Region. This region of the baixo amazonas has a number of types of materials that can be used in conjunction with other aggregates, the manufacture of concrete blocks for use in structural masonry. The construction of buildings with structural use of concrete blocks is growing considerably across the country. This study focuses attention on the city of Santarém and nearby towns in order to characterize the structural form and map the aggregates for the production of concrete blocks. In the city of Santarém and municipalities around thus considered baixo amazonas, many households are being used for the production of mortar and concrete, either dry or conventional. There is still no evidence about their effectiveness and efficiency. This work was performed in order to obtain greater insight into the structural masonry type of construction that is reclaiming its space in the building sector. In materials and methods to be employed in this certification testing of prisms and walls will be conducted using concrete blocks and aggregates of the baixo amazonas region.