El presente estudio titulado “Evaluación de la estabilización de Subrasante de baja capacidad incorporando aditivos AggreBind y MaxxSeal 200 en vías urbanas no pavimentadas en el distrito de La Victoria, Lambayeque, 2021” tiene como fin analizar la influencia de la incorporación de los aditivos AggreBind y MaxxSeal 200 en el mejoramiento de las propiedades físico-mecánicas en la estabilización de subrasante de baja capacidad. El método que se empleó en esta tesis fue de tipo experimental, con nivel de carácter explicativo; en cuanto a la población se consideró el PJ. Antonio Raymondi del ACQUA Sector 1, ubicado en el distrito de La Victoria, se tomaron muestra de suelo por medio de calicatas para posteriores pruebas de laboratorio sin y con estabilizantes, aplicando al menos tres dosificaciones tanto para AggreBind (2, 4 y 6 lt/m3) como para MaxxSeal 200 (3, 6 y 9 lt/m2) y finalmente se procede hacer la comparación. Los resultados conseguidos evidencian que el suelo del PJ. Antonio Raymondi del ACQUA Sector 1 es una arcilla de baja a mediana plasticidad, además se determinó la dosificación óptima para AggreBind que es de 6lt/m3, obteniendo un CBR de 12.16% con una MDS de 1.91 gr/cm3, un OCH de 12.19% y para MaxxSeal 200 de 6lt/m2 con un CBR de 11.80% con una MDS de 1.89, un OCH de 12.24%. / The present study entitled "Evaluation of low-capacity subgrade stabilization incorporating AggreBind and MaxxSeal 200 additives in unpaved urban roads in the district of La Victoria, Lambayeque, 2021" aims to analyze the influence of the incorporation of AggreBind and MaxxSeal 200 additives in the improvement of the physical-mechanical properties in the stabilization of low-capacity subgrade. The method used in this thesis was of experimental type, with explanatory character level; as for the population, the PJ was considered. Antonio Raymondi of ACQUA Sector 1, located in the district of La Victoria, soil samples were taken by means of soil pits for subsequent laboratory tests without and with stabilizers, applying at least three dosages for both AggreBind (2, 4 and 6 lt/m3) and MaxxSeal 200 (3, 6 and 9 lt/m2) and finally a comparison was made. The results obtained show that the soil of the PJ. Antonio Raymondi del ACQUA Sector 1 is a clay of low to medium plasticity, in addition, the optimum dosage for AggreBind was determined to be 6lt/m3, obtaining a CBR of 12.16% with an MDS of 1.91 gr/cm3, an OCH of 12.19% and for MaxxSeal 200 of 6lt/m2 with a CBR of 11.80% with an MDS of 1.89, an OCH of 12.24%.

<p>У дисертацији су анализиране мешавине за израду порозног бетонског коловоза. Пројектовано је укупно 12 различитих врста мешавина. За справљање бетонских мешавина коришћене су фракције природног и рециклираног агрегата. Електрофилтерски пепео, који је отпадни материјал из термоелектрана, коришћен је као минерални додатак, којим је замењен део цемента. Справљено је шест мешавина са рециклираним агрегатом и шест мешавина са природним агрегатом. Лабораторијска испитивања су обухватила испитивање чврстоће при притиску бетона након: 7, 28, 56 и 84 дана, чврстоће при савијању (након 28, 56 и 84 дана), модул еластичности (статички и динамички), отпорност према хабању, коефицијент водопропустљивости и порозност. Добијени резултати потврдили су постављене хипотезе да је са рециклираним агрегатом и електрофилтерским пепелом могуће пројектовати и извести порозни бетонски коловоз.</p> / <p>U disertaciji su analizirane mešavine za izradu poroznog betonskog kolovoza. Projektovano je ukupno 12 različitih vrsta mešavina. Za spravljanje betonskih mešavina korišćene su frakcije prirodnog i recikliranog agregata. Elektrofilterski pepeo, koji je otpadni materijal iz termoelektrana, korišćen je kao mineralni dodatak, kojim je zamenjen deo cementa. Spravljeno je šest mešavina sa recikliranim agregatom i šest mešavina sa prirodnim agregatom. Laboratorijska ispitivanja su obuhvatila ispitivanje čvrstoće pri pritisku betona nakon: 7, 28, 56 i 84 dana, čvrstoće pri savijanju (nakon 28, 56 i 84 dana), modul elastičnosti (statički i dinamički), otpornost prema habanju, koeficijent vodopropustljivosti i poroznost. Dobijeni rezultati potvrdili su postavljene hipoteze da je sa recikliranim agregatom i elektrofilterskim pepelom moguće projektovati i izvesti porozni betonski kolovoz.</p> / <p>In the dissertation, mixtures for the production of pervious concrete pavements are analyzed. The project has a total of 12 different types of mixtures. For the preparation of concrete mixtures, the fractions of natural and recycled aggregates were used. Fly ash, which is a waste material from thermal power plants, was used as a mineral supplement, which replaced a part of cement. Six mixtures with a recycled aggregate and six mixtures with a natural aggregate were collected. Laboratory tests included: compressive strength after 7, 28, 56 and 84 days, felxural strength (after 28, 56 and 84 days), modulus of elasticity (static and dynamic), abrasion, permeability and porosity. The obtained results confirmed the hypotheses that it is possible to design and execute a previous concrete pavement with a recycled aggregate and fly ash.</p>

Made available in DSpace on 2014-12-17T14:06:58Z (GMT). No. of bitstreams: 1 JaqueligiaBS_Capa_ate_referencias.pdf: 4148676 bytes, checksum: c08764d974461ebcf86494a06a296078 (MD5) Previous issue date: 2008-10-08 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / In building, during the implementation process of major or even minor works, there is a considerable waste of plaster in the steps of coating, making it is a negative factor because of the loss of these processes constructive remains incorporated into buildings, as component, whose final dimensions are higher than those projected. Another negative factor is the disposal of waste gypsum in inappropriate places, thus contributing to the degradation of environmental quality, due to the leaching of this waste and may trigger the formation of sulfuric acid. Therefore, based on this picture, processing and reuse of waste coating, combined with the ceramics industry, which is a strong potential in the reuse of certain types of waste, promote mutual benefits. Thus the overall objective of this work is to conduct a search with scientific and technological aspects, to determine the effect of the incorporation of the residue of plaster for coating, from the building, the formulation of bodies for red ceramic. The residue of plaster coating was collected and characterized. They were also selected raw materials of two ceramic poles of the state of Rio Grande do Norte and formulations have been made with the intention of obtaining those with the best physical and mechanical properties, the residue was added the percentage of 5%, 10%, 15%, 20%, 25% and 30%, in the best formulation of ceramic industry 1 and, according the properties analyses, 5%, 10% and 15% as the best results of ceramic industry 2. The samples were sintered at temperatures of 850 ?C, 950 ?C and 1050 ?C, the heating rate of 5 ?C / min with isotherm of two hours. They were submitted to testing technology, such as lineal shrinkage, water absorption, apparent porosity, apparent density and bending resistence. The residue incorporation best results in the formulations of mass in red ceramic, were observed between the temperatures of 850 ?C and 950 ?C, in those formulations that have illite clays and medium plastic in their composition, in the range of 0% to 15% residue incorporated / Na constru??o civil, durante o processo de execu??o de grandes ou at? mesmo pequenas obras, h? um desperd?cio consider?vel de gesso nas etapas de revestimento, tornando-se este um fator negativo, pois parte das perdas destes processos construtivos permanece incorporada nas constru??es, na forma de componentes, cujas dimens?es finais s?o superiores ?quelas projetadas. Outro fator negativo ? a disposi??o dos res?duos de gesso em locais inadequados, contribuindo assim para a degrada??o da qualidade ambiental, devido ao processo de lixivia??o deste res?duo, podendo desencadear na forma??o de ?cido sulf?rico. Baseado neste panorama, a transforma??o e o reaproveitamento dos res?duos de revestimento, aliada ? ind?stria da cer?mica, que ? um forte potencial no reaproveitamento de alguns tipos de res?duos, promoveria benef?cios m?tuos. O objetivo geral deste trabalho foi de realizar uma pesquisa com aspectos cient?ficos e tecnol?gicos, para verificar o efeito da incorpora??o do res?duo de gesso para revestimento, proveniente da constru??o civil, na formula??o de massas para cer?mica vermelha. As mat?rias-primas foram coletadas de dois p?los cer?micos do Estado do Rio Grande do Norte e formuladas com o intuito de obter aquelas com as melhores propriedades f?sicas e mec?nica, tendo sido incorporados os percentuais 5%, 10%, 15%, 20%, 25% e 30% de res?duo, na melhor formula??o da ind?stria cer?mica 1 e, de acordo com a an?lise dos seus resultados, de 5%, 10% e 15% na melhor formula??o da ind?stria cer?mica 2. As amostras foram sinterizadas ?s temperaturas de 850 ?C, 950 ?C e 1050 ?C, ? taxa de aquecimento de 5 ?C/min com isoterma de duas horas e submetidas a ensaios tecnol?gicos, como retra??o linear de queima, absor??o de ?gua, porosidade aparente, massa espec?fica aparente e resist?ncia mec?nica ? flex?o. Os melhores resultados de incorpora??o do res?duo nas formula??es de massa de cer?mica vermelha foram observados na faixa de temperatura de 850 ?C a 950 ?C, naquelas que possuem argilas il?ticas e medianamente pl?sticas em sua composi??o, na faixa de 0% a 15% de res?duo incorporado

Conselho Nacional de Desenvolvimento Científico e Tecnológico / This work aimed at evaluating the quality of particleboards manufactured with different wood proportions (Eucalyptus grandis W. Hill. ex Maiden) and rice husk. The composites were produced in the proportions 0, 20, 40, 60, 80 and 100% of peels of rice with the use of urea-formaldehyde and tannin-formaldehyde adhesives. In order to characterize the quality of the particleboards, physical properties (specific mass; moisture content; water absorption and swelling in thickness after 2 and 24 hours), mechanical resistance (static bending; internal bonding and screw withdrawal) and xylophages resistance (Nasutitermes corniger under alimentary preference assay and decay fungi Gloeophyllum trabeum and Trametes versicolor in laboratory conditions) were evaluated. Results showed that particleboards manufactured with tannin-formaldehyde resins presented a higher quality. The increase of rice husk provided a larger instability and a smaller resistance of the particleboards. Particleboards produced with peels of rice presented a higher resistance to the attack of fungi or xylophages termites. Particleboards glued with tannin-formaldehyde were more resistant to the attack of termites; for the fungi, the difference among adhesives happened when these particleboards were submitted to the attack of Gloeophyllum trabeum, and the particleboards produced with urea-formaldehyde were the most resistant. In the fungi, Trametes versicolor was the fungus that provided the largest mass loss to the particleboards. / Avaliou-se a qualidade de painéis aglomerados produzidos com diferentes proporções de madeira (Eucalyptus grandis W. Hill. ex Maiden) e casca de arroz. Os compósitos foram produzidos nas proporções 0, 20, 40, 60, 80 e 100% de casca de arroz com a utilização dos adesivos ureia-formaldeído e tanino-formaldeído. Para caracterizar a qualidade das chapas, foram avaliadas as propriedades físicas (massa específica; teor de umidade; absorção de água e inchamento em espessura as 2 e 24 horas), a resistência mecânica (flexão estática; ligação interna; e resistência ao arrancamento de parafusos) e a resistência a xilófagos (aos cupins subterrâneos Nasutitermes corniger, em ensaios de preferência alimentar e aos fungos apodrecedores Gloeophyllum trabeum e Trametes versicolor em ensaios de laboratório). Os resultados obtidos indicaram que quando confeccionados utilizando a resina à base de tanino os painéis apresentaram qualidade superior. O acréscimo da casca de arroz proporcionou uma maior instabilidade e uma menor resistência das chapas. Em contrapartida, painéis produzidos com casca de arroz geralmente apresentaram maior resistência ao ataque de fungos apodrecedores ou aos cupins subterrâneos. Painéis colados com tanino-formaldeído foram mais resistentes ao ataque dos térmitas, enquanto que, para os fungos, a diferença entre adesivos ocorreu apenas quando submetidas ao ataque de Gloeophyllum trabeum, sendo as chapas produzidas com ureia-formaldeído as mais resistentes. Dentre os fungos, Trametes versicolor proporcionou uma maior perda de massa aos painéis.

The diploma thesis is focused on the development of composites from alkali activated materials (AAM) and their resistance to extreme temperatures. The theoretical part describes alkaline activation and precursors for the production of AAM. Furthermore, the problem of the effect of extreme temperatures on these materials is described. In the experimental part, the optimal silicate modulus with respect to the properties of AAM was gradually determined, and the effect of extreme temperatures on the AAM matrix was verified. In the next stage, the effect of the filler with respect to the behavior at extreme temperatures was tested and then the final formulation was optimized.