A utilização de produtos provenientes de fontes renováveis e livres de substâncias tóxicas é tendência global, prova disso é o constante aumento da demanda por produtos à base de madeira. Segundo o Forest Products Statistics (2015), a produção mundial de painéis de madeira reconstituída, em 2014, foi de 388 milhões de m³, um aumento de 5,5% em comparação com o ano anterior e um aumento de 34% quando comparado com 2010. No entanto, o setor industrial de painéis de madeira há décadas enfrenta um grande desafio com relação às emissões tóxicas vindas dos adesivos convencionais. Diante destes problemas, a proposta do presente trabalho foi testar a viabilidade da produção de painéis aglomerados e painéis OSB, com significativa redução da emissão de formaldeído, a partir de resíduos de madeira de Pinus sp. e Tectona grandis (Teca). Neste sentido, buscou-se contribuir para o aumento do conhecimento científico sobre a utilização do polímero natural polihidroxibutirato (PHB) e do resíduo de tinta à base de resina epóxi como adesivos alternativos. Os painéis foram fabricados variando-se os parâmetros de produção para obtenção de melhores condições de processo, sendo estes: densidade baixa, média e alta; teor de adesivo de 20, 30 e 40%; adição de partículas de Teca nas proporções de 0, 25, 50, 75, 100%. O desempenho físico-mecânico dos painéis foi avaliado com base nas normas ABNT NBR 14810 (2013) e ANSI A208.1 (2009). Realizou-se análise de variância (ANOVA) para testar a influência dos fatores individuais (densidade, percentual de adesivo e fração de Teca), além das interações entre tais fatores nas propriedades físico-mecânicas dos painéis. Os resultados apontaram para excelentes propriedades físicas e mecânicas dos painéis aglomerados de média e alta densidade, tendo resíduo de tinta, principalmente, nas proporções de 30 e 40%. Na maioria dos casos as propriedades de tais painéis foram superiores aos requisitos estipulados pela norma brasileira e pelas internacionais. Assim, ficou confirmada a viabilidade de produção dos aglomerados com pelo menos um dos insumos estudados bem como seu potencial de emprego para as finalidades compatíveis com produtos desta natureza. / The use of products from renewable sources and free of toxic substances is a global trend, the proof is the steady increase in demand for wood-based products. According to the Forest Products Statistics (2015), world production of reconstituted wood panels in 2014 was 388 million cubic meters, an increase of 5.5% compared to the previous year and an increase of 34% compared to 2010. However, the industrial sector of wood panels for decades faces a major challenge with regard to toxic emissions coming from conventional adhesives. Faced with these problems, the purpose of this study was to test the feasibility of production of panels and OSB panels, with significant reduction of formaldehyde emissions from wood waste Pinus sp. and teak (Teak). In this sense, we sought to contribute to the increase of scientific knowledge on the use of natural polymer polyhydroxybutyrate (PHB) and residual ink resin-based epoxy as alternative adhesives. The panels were manufactured by varying the production parameters to obtain the best processing conditions, namely: low density, medium and high; resin content of 20, 30 and 40%; adding particles of Teak in proportions of 0, 25, 50, 75, 100%. The physical-mechanical performance of the panels was evaluated based on the standards NBR 14810 (2013) and ANSI A208.1 (2009). Held analysis of variance (ANOVA) to test the influence of individual factors (density, adhesive percentage and fraction Teak), and the interactions among these factors in the physical-mechanical properties of the panels. The results showed excellent physical and mechanical properties of the panels average clusters and high density, and ink residue, mainly in the proportions of 30 and 40%. In most cases the properties of these boards were superior to the requirements set by the Brazilian and international standards. Thus, it was confirmed production of agglomerates with at least one viability of inputs studied as well as their potential for employment for purposes compatible with products of this nature.

This dissertation desribes the behavior of cellulose fiber reinforced concrete. In the theoretical section one can find basic information on cellulose fiber and its methods of production and usage in concrete structures. One can find the information about the effect of high temperature on the mechanical and physical attributes of cellulose fiber reinforced concrete, and also a comparison with other fibers used in concrete based on the research done using scientific literature. Furthermore the details about particular cellulose fibers are provided. In the experimental section the formulas for CHRYSO and GREENCEL concrete are designed. The influence of the addition of various types of cellulose fibers into both liquid and solid states of concrete was researched. Tests were also done on the effect of high temperatures (600 °C and 800 °C) on the firmness and densitiy of concrete, its deformations and visual changes. Furthermore, the resistance of cellulose fibers was monitored by monitoring the development of the pH environment (from pH 4 to pH 12) with long-term deposition of different types of cellulose fibers in these environments.

This work deals with issues aimed at the possibility of treating the material which has not been used yet – coal tailings. The work includes among others the production, its optimalization and utilization of a new type of lightweight artificial aggregate in the process of production of concrete. The possibility of manufactured the artificial aggregate is dealt with the principle of self-burning of the raw material's batch at the agglomerative grate. The optimalization of the burning process was performed both with the homogenous and the layered batch. Further part of the work focuses on the fabrication of diverse types of concrete and determination of their parametres. This section is significantly extended with the comparison of basic physical and specific properities of the new type of concrete with those of the commonly produced types. The last part of presented work deals with the ecological - economic situation of these issues. The proposed solution points to the possibility of utilization of the coal tailings which are put to the tailings heaps. It was managed to optimize the burning process and to find the most convenient system for storing the raw material's batch at the agglomerative grate. Next, it was proved that the types of concrete produced with a new sort of aggregate are also suitable for fabricating the construction concrete with the strength above the border of 50 MPa, which are applicable even in harder conditions. These sorts of concrete also have a lower volume weight and very good bending properties. The major finding, which underlines the contribution of this work, is that the up to now unused material is suitable for fabrication of relatively high-quality and thermally stable aggregate of strength on the border of 5 MPa, which can be use for fabricating concrete with very good results even in this field. Another great contribution of this work can surely be the fact, that a preliminary economic balance of the manufacturing pr

This diploma thesis discusses the basics of nanotechnology as a science and nanotechnology of concrete. Additionally, it describes carbon nanotubes and the possibilities of their dispersion using high shear mixing and sonication. This thesis further provides findings about ultrasonic dispersion parameters and characteristics of materials with the addition of carbon nanotubes. The experimental of part of this thesis focuses on the possibility of dispersing carbon nanotubes, deals with the issue of incorporating carbon nanotubes into the concrete matrix and describes its effects on the final properties of concrete. It has been observed to which extent the carbon nanotubes may affect selected physico-mechanical properties and durability of concrete.

Wood-polymer composite is a relatively new type of material that combines shattered wood mass and a thermoplastic polymer. This material is utilized especially as an alternative to hard wood in the area of non-bearing exterior elements, as it reaches better properties in terms of the basic durability and low maintenance. Raw material composition and processing of the composite enable to provide a significant modification with further matters leading to an improvement of the end-product properties. Research and development in this field focuses predominantly on the utilization of such modifying additives that either enhance the resistance to weathering or are of the recycled nature, as a significant part of the raw material mixture comprises the constituent obtained from non-renewable resources. The aim of the thesis is the evaluation of the influence of the wood-polymer composite modification separately at two levels. First of them is the modification to matrix by using a recycled polymer, the second one comprises the modification of the wood flour with a secondary spherical filler. Both types of modified composites have been assessed in terms pf the prime characteristics and the resistance to adverse ambient.

Tesis por compendio / [ES] Esta investigación se centra en la caliza de Prada, una formación del Cretácico inferior ubicada en la zona sur pirenaica de Cataluña (España). Se tomaron muestras de roca de sondeos perforados durante la etapa de diseño del túnel de Tres Ponts. El trabajo aquí presentado explora diferentes aspectos relacionados con el comportamiento térmi-co de la caliza de Prada y las consecuencias derivadas en el túnel de Tres Ponts. En primer lugar, este trabajo describe la variación en las propiedades texturales, físicas y mecánicas de la caliza de Prada después de ser sometida a temperaturas de entre 105 y 600 ºC, y luego enfriada a un ritmo lento o mediante templado, y determina las tem-peraturas clave y los métodos de enfriamiento que afectan más la estabilidad en caso de incendio en el túnel de Tres Ponts. En segundo lugar, esta investigación se centra en las causas y mecanismos implicados en el comportamiento explosivo y la liberación de gas sulfuroso observado en una fracción gris oscuro de muestras de caliza de Prada. Las implicaciones de tales muestras de color gris oscuro son críticas en infraestructuras subterráneas y en minería, ya que el potencial explosivo de esas muestras conlleva el riesgo de fracturación masiva y de disminución brusca en la resistencia. Además, el gas sulfuroso liberado tiene efectos nocivos sobre la salud de las personas y el poten-cial de formar compuestos ácidos que corroen los materiales, acortando su durabilidad y aumentando los costes de mantenimiento. Posteriormente, este trabajo determina si el tratamiento térmico sobre la caliza de Prada tiene un efecto significativo en facilitar su perforabilidad. Comprender la variación en el rendimiento de perforación de la caliza de Prada tratada térmicamente ayudaría a mejorar la eficiencia de los medios mecánicos de excavación. Finalmente, se proponen algunas correlaciones para deter-minar indirectamente las características de resistencia, deformación y perforabilidad de la caliza de Prada tras ser tratada térmicamente, a partir de pruebas simples, rápidas y no destructivas. / [CA] Aquesta investigació es centra en la calcària de Prada, una formació del Cretaci inferior situada a la zona sud pirinenca de Catalunya (Espanya). Es van prendre mostres de roca de sondejos perforats durant l'etapa de disseny del túnel de Tres Ponts. El treball aquí presentat explora diferents aspectes relacionats amb el comportament tèrmic de la calcària de Prada i les conseqüències derivades al túnel de Tres Ponts. En primer lloc, aquest treball descriu la variació en les propietats texturals, físiques i mecàniques de la calcària de Prada després de ser tractada a temperatures d'entre 105 i 600 ºC, i després refredada a un ritme lent o ràpid, i determina les temperatures clau i els mètodes de refredament que afecten més l'estabilitat en cas d'incendi al túnel de Tres Ponts. En segon lloc, aquesta investigació es centra en les causes i mecanismes implicats en el comportament explosiu i l'alliberament de gas sulfurós observat en una fracció gris fosc de mostres de calcària de Prada. Les implicacions de tals mostres de color gris fosc són crítiques en infraestructures subterrànies i en mineria, ja que el potencial explosiu d'aquestes mostres comporta el risc de fracturació massiva i de disminució brusca en la resistència. A més, el gas sulfurós alliberat té efectes nocius sobre la salut de les persones i el potencial de formar compostos àcids que corroeixen els materials, retallant la seua durabilitat i augmentant els costos de manteniment. Posteriorment, aquest treball determina si el tractament tèrmic sobre la calcària de Prada té un efecte significatiu en facilitar la seua perforabilitat. Comprendre la variació en el rendiment de perforació de la calcària de Prada tractada tèrmicament ajudaria a millorar l'eficièn-cia dels mitjans mecànics d'excavació. Finalment, es proposen algunes correlacions per determinar indirectament les característiques de resistència, deformació i perforabilitat de la calcària de Prada després de ser tractada tèrmicament, a partir de proves simples, ràpides i no destructives. / [EN] This research is focused on Prada limestone, a lower Cretaceous formation located in the Catalan south Pyrenean zone (Spain). Rock samples were taken from boreholes drilled during the design stage of the Tres Ponts Tunnel. The work presented here explores different aspects related to the thermal behaviour of Prada limestone and the derived consequences on the Tres Ponts Tunnel. Firstly, this work reports the variation in the textural, physical, and mechanical properties of Prada limestone after being heated at temperatures of between 105 and 600 ºC and then cooled at a slow rate or by quenching and determines key temperatures and cooling methods that would most affect stability in case of a fire in the Tres Ponts Tunnel. Secondly, this research fo-cuses on the causes and mechanisms involved in the explosive behaviour and release of sulphurous gas observed on a dark grey fraction of samples from Prada limestone. Implications of such dark grey samples are critical in underground infrastructure and mining engineering works, as the explosive potential of that sample represents risk of mass fracturing and dramatic strength decay. Moreover, the sulphurous gas released has harmful health effects and may form acid compounds that corrode materials, shorten their durability, and increase maintenance costs. Later, this work determines if thermal treatment on Prada limestone has a significant effect on improving its drilla-bility. Understanding the variation in the drilling performance of the thermally treated Prada limestone would help improve the efficiency of mechanical excavation means. Finally, some correlations are proposed to indirectly determine the strength, deformational, and drillability features of Prada limestone after being thermally treated from simple, quick and non-destructive tests. / This research was partially supported by the Spanish Government [grant number RTI2018-099052-B-I00], also the Vice-Rectorate of Research and Knowledge Transfer at the University of Alicante through projects UAUSTI19-25 and UAUSTI20-20, and by the Departamento de Ingeniería del Terreno at the Universitat Politècnica de València. / Martínez Ibáñez, V. (2021). Effects of high temperatures in the physical, mechanical, and drilling features of Prada limestone [Tesis doctoral]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/171023 / Compendio

O aumento do consumo da madeira e de seus produtos, como os painéis de madeira, estimula o desenvolvimento de tecnologia de produtos que utilizam os insumos caracterizados como resíduos. Neste aspecto, o país reúne vantagens competitivas, pela extensa área de plantações de eucalipto de alta produtividade, detém a primeira posição na produção de cana-de-açúcar e possui um parque industrial com avançada tecnologia de produção de painéis de fibras e de partículas. Com este contexto, o presente trabalho teve como principal objetivo a confecção e a caracterização tecnológica de painéis de fibras de madeira de eucalipto, Eucalyptus grandis e de partículas do bagaço do colmo de cana-de-açúcar, Saccharum sp. Os ensaios laboratoriais compreenderam, inicialmente, a caracterização macroscópica das matérias primas e suas misturas, bem como classificação granulométrica do bagaço de cana-de-açúcar. Em seguida, foram estabelecidas 2 etapas referentes ao processo de confecção dos painéis, denominadas etapa A (0-100% de bagaço de cana-de-açúcar, com variações de 25%; 14% de resina UF) e etapa B (0-25% de bagaço de cana-de-açúcar, com variações de 5%; 13 e 16% de resina UF). A caracterização tecnológica dos painéis compreendeu a análise da sua morfologia (microscopia MEV, microtomografia de raios X/microCT), densitometria de raios X, propriedades físicas (densidade, inchamento, absorção e umidade), mecânicas (MOR, MOE, resistências à trações perpendicular e superficial, arrancamento de parafuso); análises óticas por deflectometria, química (espectroscopia NIR, teor de formol livre e sílica) e durabilidade natural (bioensaios de fungos xilófagos e cupins). Os resultados da avaliação morfológica indicaram diferenças da estrutura anatômica das matérias primas e de granulometria das partículas de bagaço de cana-de-açúcar. A avaliação morfológica dos painéis evidenciou, através da microCT, a homogeneidade da matriz fibrosa, cuja composição anatômica foi diferenciada através do MEV. Na caracterização das propriedades físico-mecânicas, os perfis de densidade aparente dos painéis, típicos de painéis de fibras, indicaram a influência da matéria prima e sua mistura. Ainda, verificou-se uma redução das propriedades mecânicas, notadamente MOR, MOE e resistência á tração perpendicular, dos painéis confeccionados com mais de 50% de partículas do bagaço de cana-de-açúcar; quanto à resina, 16% resultou em melhor desempenho tecnológico em relação à 13%. Os valores de MOE dos painéis foram similares aos obtidos pela aplicação da técnica ótica de deflectometria. O aumento percentual de partículas do bagaço de cana-de-açúcar nos painéis resultou em redução do teor de formol livre e no aumento do teor de sílica. A aplicação da metodologia NIR permitiu a diferenciação das fibras da madeira de eucalipto e das partículas de bagaço de cana-de-açúcar e seus percentuais praticados. Nos bioensaios os painéis (etapa B) não apresentaram diferenças significativas quanto à resistência ao ataque de fungos e cupins. Os resultados permitem concluir que os painéis de fibras de eucalipto e partículas de bagaço de cana-de-açúcar, como matéria prima alternativa e em percentuais entre 5-25%, apresentaram propriedades tecnológicas que atendem às normas, indicando o potencial da utilização desta biomassa para produtos de maior valor agregado. / The increased consumption of wood and its products, such as wood panels, stimulates the development of technology for products that use inputs characterized as waste. In this respect, Brazil has competitive advantages regarding the large area of high-yield eucalyptus crops; Brazil is the worlds major sugarcane producer and has an industrial sector with advanced technology for fiberboards and particleboards production. Therefore, this study aimed to develop the manufacture and technological characterization of wood fibers from eucalyptus, Eucalyptus grandis, and stalk particles of sugarcane bagasse, Saccharum sp. Laboratory analyses included, initially, the macroscopic characterization of raw materials and their mixtures as well as sorting granules of crushed sugarcane bagasse. Then, two steps were established for the panel-making process, called phase A (0-100% of sugarcane bagasse, with variations of 25%, 14% UF resin) and phase B (0 - 25% of sugarcane bagasse, with variations of 5%, 13 and 16% UF resin). The technological characterization of the panels comprised the morphology analysis (SEM microscopy, X-ray microtomography / microCT), X-ray densitometry, physical properties (density, swelling in thickness, absorption and moisture content), mechanical (MOR, MOE, internal bond, surface resistance and axial withdrawal of screw); optical analysis by deflectometry, chemical (NIR spectroscopy, free formaldehyde content of sand content) and natural durability (bioassays of fungi and termites). The results indicated morphological differences of anatomical structure of raw materials and particle size of sugarcane bagasse. The morphological evaluation of the panels showed, through the microCT, the homogeneity of the fibrous matrix, whose anatomical composition was different through SEM. In the characterization of physical-mechanical properties, the density profiles of the panels, typical of fiberboards, indicated the influence of raw materials and their mixture. Still, there was a reduction of mechanical properties, notably MOR, MOE and internal bond to the panels made with more than 50% of sugarcane bagasse particles; regarding the resin, 16% resulted in better technological performance compared to 13%. The MOE values of the panels were similar to those obtained by applying the deflectometry technique. The percentage of sugarcane bagasse particles in the panels resulted in reduction of the level of free formaldehyde and increase of the sand content. The use of the NIR methodology allowed the differentiation of eucalyptus wood fibers and particles of sugarcane and their percentage applied. In bioassays, the panels (step B) showed no significant differences in resistance to fungi and termites. The results indicate that the panels of eucalyptus fibers and particles of sugarcane bagasse, as an alternative raw material and at percentages between 5-25% showed technological properties that meet the standards, indicating the potential use of this biomass for products with higher value added.

O aumento do consumo da madeira e de seus produtos, como os painéis de madeira, estimula o desenvolvimento de tecnologia de produtos que utilizam os insumos caracterizados como resíduos. Neste aspecto, o país reúne vantagens competitivas, pela extensa área de plantações de eucalipto de alta produtividade, detém a primeira posição na produção de cana-de-açúcar e possui um parque industrial com avançada tecnologia de produção de painéis de fibras e de partículas. Com este contexto, o presente trabalho teve como principal objetivo a confecção e a caracterização tecnológica de painéis de fibras de madeira de eucalipto, Eucalyptus grandis e de partículas do bagaço do colmo de cana-de-açúcar, Saccharum sp. Os ensaios laboratoriais compreenderam, inicialmente, a caracterização macroscópica das matérias primas e suas misturas, bem como classificação granulométrica do bagaço de cana-de-açúcar. Em seguida, foram estabelecidas 2 etapas referentes ao processo de confecção dos painéis, denominadas etapa A (0-100% de bagaço de cana-de-açúcar, com variações de 25%; 14% de resina UF) e etapa B (0-25% de bagaço de cana-de-açúcar, com variações de 5%; 13 e 16% de resina UF). A caracterização tecnológica dos painéis compreendeu a análise da sua morfologia (microscopia MEV, microtomografia de raios X/microCT), densitometria de raios X, propriedades físicas (densidade, inchamento, absorção e umidade), mecânicas (MOR, MOE, resistências à trações perpendicular e superficial, arrancamento de parafuso); análises óticas por deflectometria, química (espectroscopia NIR, teor de formol livre e sílica) e durabilidade natural (bioensaios de fungos xilófagos e cupins). Os resultados da avaliação morfológica indicaram diferenças da estrutura anatômica das matérias primas e de granulometria das partículas de bagaço de cana-de-açúcar. A avaliação morfológica dos painéis evidenciou, através da microCT, a homogeneidade da matriz fibrosa, cuja composição anatômica foi diferenciada através do MEV. Na caracterização das propriedades físico-mecânicas, os perfis de densidade aparente dos painéis, típicos de painéis de fibras, indicaram a influência da matéria prima e sua mistura. Ainda, verificou-se uma redução das propriedades mecânicas, notadamente MOR, MOE e resistência á tração perpendicular, dos painéis confeccionados com mais de 50% de partículas do bagaço de cana-de-açúcar; quanto à resina, 16% resultou em melhor desempenho tecnológico em relação à 13%. Os valores de MOE dos painéis foram similares aos obtidos pela aplicação da técnica ótica de deflectometria. O aumento percentual de partículas do bagaço de cana-de-açúcar nos painéis resultou em redução do teor de formol livre e no aumento do teor de sílica. A aplicação da metodologia NIR permitiu a diferenciação das fibras da madeira de eucalipto e das partículas de bagaço de cana-de-açúcar e seus percentuais praticados. Nos bioensaios os painéis (etapa B) não apresentaram diferenças significativas quanto à resistência ao ataque de fungos e cupins. Os resultados permitem concluir que os painéis de fibras de eucalipto e partículas de bagaço de cana-de-açúcar, como matéria prima alternativa e em percentuais entre 5-25%, apresentaram propriedades tecnológicas que atendem às normas, indicando o potencial da utilização desta biomassa para produtos de maior valor agregado. / The increased consumption of wood and its products, such as wood panels, stimulates the development of technology for products that use inputs characterized as waste. In this respect, Brazil has competitive advantages regarding the large area of high-yield eucalyptus crops; Brazil is the worlds major sugarcane producer and has an industrial sector with advanced technology for fiberboards and particleboards production. Therefore, this study aimed to develop the manufacture and technological characterization of wood fibers from eucalyptus, Eucalyptus grandis, and stalk particles of sugarcane bagasse, Saccharum sp. Laboratory analyses included, initially, the macroscopic characterization of raw materials and their mixtures as well as sorting granules of crushed sugarcane bagasse. Then, two steps were established for the panel-making process, called phase A (0-100% of sugarcane bagasse, with variations of 25%, 14% UF resin) and phase B (0 - 25% of sugarcane bagasse, with variations of 5%, 13 and 16% UF resin). The technological characterization of the panels comprised the morphology analysis (SEM microscopy, X-ray microtomography / microCT), X-ray densitometry, physical properties (density, swelling in thickness, absorption and moisture content), mechanical (MOR, MOE, internal bond, surface resistance and axial withdrawal of screw); optical analysis by deflectometry, chemical (NIR spectroscopy, free formaldehyde content of sand content) and natural durability (bioassays of fungi and termites). The results indicated morphological differences of anatomical structure of raw materials and particle size of sugarcane bagasse. The morphological evaluation of the panels showed, through the microCT, the homogeneity of the fibrous matrix, whose anatomical composition was different through SEM. In the characterization of physical-mechanical properties, the density profiles of the panels, typical of fiberboards, indicated the influence of raw materials and their mixture. Still, there was a reduction of mechanical properties, notably MOR, MOE and internal bond to the panels made with more than 50% of sugarcane bagasse particles; regarding the resin, 16% resulted in better technological performance compared to 13%. The MOE values of the panels were similar to those obtained by applying the deflectometry technique. The percentage of sugarcane bagasse particles in the panels resulted in reduction of the level of free formaldehyde and increase of the sand content. The use of the NIR methodology allowed the differentiation of eucalyptus wood fibers and particles of sugarcane and their percentage applied. In bioassays, the panels (step B) showed no significant differences in resistance to fungi and termites. The results indicate that the panels of eucalyptus fibers and particles of sugarcane bagasse, as an alternative raw material and at percentages between 5-25% showed technological properties that meet the standards, indicating the potential use of this biomass for products with higher value added.

Literature does not provide a satisfactory answer to maximum and minimum particle size or the particle size of the mortar phase especially for optimal porosity of concrete. To overcome the shortcomings of the design methods were thought to design a new method for design of concrete mix. This idea is based on a complex analysis of powder materials (determination of granular properties, shape factor of fillers, porosity, packing of powder materials, surface area, etc.) and subsequently to assess the influence to pore system of concrete and physical and mechanical properties in hardened state of concrete. In this work are presented and analyzed two types of fillers – fly ash and limestone dust.

This thesis aims to compare the relationship of physical-mechanical properties of tool materials made of WC-Co sintered carbides with their resistance to initiation and propagation of thermal cracks. The paper presents the results of testing the basic physical-mechanical properties of the three samples sintered carbides with different percentage of Co binder. Next, this thesis describes the progress and results of quench experiment and cutting tests using, which was described resistance of the tested samples to thermal and mechanical shock, depending on the values of physical-mechanical properties.