Aggressive Agents Research Articles

Probabilistic analysis of the durability of architectural concrete surfaces

Architectural concrete is considered a robust and solid material. However, when put into use, it is exposed to aggressive agents, especially when applied as an envelope solution, which directly affects its performance and durability. In this study, a probabilistic analysis of the degradation of architectural concrete surfaces is presented, based on the evaluation of the characteristics of 320 case studies in Portugal. For this complex approach, logistic and multinomial regression models were adopted, to determine the behaviour of the façades over time and to understand the contribution of age, aggressive agents and other characteristics to the overall degradation of the surfaces under analysis. Thus, assessing the probability of a cladding reaching the end of the service life is possible, as well as determining the moment when intervention is needed, helping to establish maintenance plans for this type of surfaces. In this study, it was found that an architectural concrete surface with 43 years old has a 50% probability of reaching the end of its service life, whilst at 52 years old that probability is of 90%.

Crack development in steel-fibre-reinforced concrete members with conventional rebars

Although concrete performance has increased significantly over the last 20 years, the durability of concrete structures still remains a major concern. In fact, while concrete permeability has been remarkably reduced, aggressive agents can still penetrate concrete structures through cracks, which are generally present due to shrinkage or tensile stresses. A possible solution for crack control in structural members reinforced with conventional steel rebars is represented by fibre-reinforced concrete. In fact, fibre reinforcement improves the tension stiffening in the concrete portions between cracks and allows tensile stresses to be transmitted between the crack faces; both aspects reduce the crack distance and, as a consequence, the crack width. Within this framework, the aim of this paper is to shed new light on the crack control exhibited by steel-fibre-reinforced concrete (SFRC), having high post-cracking residual strength, in combination with steel rebars. In this regard, 32 tension ties under direct tension were tested. Special attention was devoted to the influence of the SFRC post-cracking performance on crack formation and development. The results confirmed a reduction in mean crack spacing compared with reinforced concrete members. However, beyond a nominal residual strength of around 5 MPa, no considerable reduction of the mean crack spacing was found.

A Review Paper on Sustainable Cost Effective Concrete for Corrosive Environment

For its favorable properties and easily availability, the use of concrete increasing annually. When the concrete exposed to environment it start to disintegrate due to chemical attack. The chemical attacks on concrete majorly are in the form of a reaction between aggressive agents and the cement matrix, although reactions can also happen with the aggregates. This review paper gives a suggestion to make a cost effective and durable concrete to perform well in the aggressive corrosion environment by the waste products obtained from different industry. The use of Portland cement concrete has an impact on the environmental due to the emission of CO 2 in the atmosphere. On the other side handling of plastic waste was a major problem all over the world. So, as to give suggestion to these problems the study has been made as the use of rice husk ash (obtained from agricultural waste) and silica fume (obtained from alloy industry) as partial replacement of Portland cement to increase strength at early and later ages. And due to its micro structure it reduce the permeability of concrete and exhibit considerable enhancement in durability, also provides better bond between cement matrix and the aggregate. The usage of LDPE is high throughout the world compared to other plastics, the density of LDPE range from 925-940 kg/m 3 so the density of the concrete greatly reduce up to 30% as their wastes can be used as a replacement for fine aggregate.. In terms of durability the high amount of silica impregnated the concrete samples and thereby reduces porosity of concrete. The strength reduction due to plastics will nearly compensated by the RHA and SF. The use of such waste products gives cost effective and reducing co 2 emission and best method for the disposal of plastic wastes. Keywords: Silica Fume, Rice husk ash, LDPE, Durability DOI : 10.7176/CER/11-5-05 Publication date :June 30 th 2019

Highlights on the Deterioration of Rock Art at Unfinished Obelisk Quarry in Aswan-Egypt

The unfinished obelisk quarry in Aswan is one of the most important archaeological sites in Egypt. This site contains very important rock art panels (paintings and inscriptions) which give the site further importance and are concerned with the activities of the quarry. Rock art panels at this site are subject to different kinds of physical, chemical and biological deterioration as a consequence of their exposure to the direct action of aggressive atmospheric agents (extreme temperature, wind, chemical weathering ,salts pressure and the rising water table from the canal at the site) and anthropogenic deterioration factors so; they suffer from different deterioration phenomena such as exfoliation, granular disintegration, detachment, salt crystallization, aesthetic disfigurement and chemical alterations. For this purpose, the chemical, physical and structural characterization were performed by means of Polarizing Microscope (PM), Scanning Electron Microscope (SEM) attached with EDX, X-Ray Diffraction (XRD), Infrared analysis (I.R) and microbiological study. The results have shown that these panels suffer from many crystallized salts such as sodium chloride and calcium sulphate (anhydrite or gypsum) and alteration of feldspars to clay minerals.

The Grammar of Gender Ideology: The Press Coverage of Sexual Violence in Turkey and the Passive Voice

This research critically examines the Turkish press coverage of sexual violence during the growing hegemony of neoliberal governmentality in Turkey. Through a critical discourse analysis of the newspaper Hürriyet’s reports on rape cases during the last 20 years, I aim to decipher the structures of power and gender regimes reflected in these reports. To this end, I critically examine the levels of agency and responsibility that reporters attribute to perpetrators and survivors of rape through the use of passive and active voice. The analysis reveals that the media reports of rape characterized male rapists as aggressive criminal agents who were helpless against the police and the legal system. Female survivors, on the other hand, were cast as autonomous agents who became helpless victims of rape (sometimes due to their naiveté) and reclaimed their agency with the help of the police and the legal system. The results point to a transformation of the traditional conceptions of rape and the mainstream gender ideologies as the outcome of two oppositional forces: neoliberal familism and feminist ideology.

Field validation of water‐pipe leakage detection through spatial and time‐lapse analysis of GPR wave velocity

ABSTRACTDetection of leakage in a buried water pipe is a crucial issue, as underground pipes become aged and these pipes are often used as pathways for aggressive chemical agents. Non‐destructive geophysical methods for identifying such underground leakages are of vital importance. Leakage detection in buried water pipes is sometimes carried out through specific acoustic methods. In this research, we have used ground‐penetrating radar as an alternative to such acoustic methods, because of the high sensitivity of electromagnetic waves to the presence of water in soil. This paper presents a methodology, illustrated by field‐scale ground‐penetrating radar experiments. Four water leakage points in a buried, ductile, iron, main‐water pipe were pre‐designed within a full‐scale (20 m long × 10 m wide) experimental set up. This facility was paved half by reinforced concrete and half by other pavement blocks. Four ground‐penetrating radar antennae with five nominal frequencies 200, 250, 400, 600 and 900 MHz were tested. Using a modified algorithm for common offset ground‐penetrating radar antennae, in this work, we measure the changes in electromagnetic wave velocity and wave reverberation, which sense upward and downward leakages, respectively. Leakages could be identified most clearly in the 600 MHz ground‐penetrating radar data. Our result suggests two potential applications in terms of detecting and defining the extent of multiple leakages in old water pipes, and testing and commissioning new pipes before and after pressurized tests.

Complex Insect-Pathogen Interactions in Tree Pandemics.

Tree pandemics are a major cause of economic and ecological loss in forest and urban ecosystems. They often depend on the introduction of a non-native pathogen, which is occupying the niche of a native, non-aggressive organism. Complex interactions with native insects carrying fungi and nematodes can be established based on the proximity of the aggressive pathogenic agents. Here we review three major pandemics of forest and urban trees in temperate ecosystems at world scale, i.e., the Dutch elm disease, the cypress canker, and the pine wilt disease. For each system, the relationships between aggressive and non-aggressive fungi and nematodes with the native insect vectors are presented. Hidden players such as insects, microorganisms or plants, which may have the role of facilitating or contrasting the performance of the agents, are also considered. Results suggest that pandemics rely on the introduction of a non-native pathogen that exploits well-developed interactions between native non-aggressive organisms and insects associated with trees. The success of the invaders depends on the morpho-physiological proximity of the players and on the mutual benefits resulting from the associations. Deciphering such interactions in native systems may help to predict the outcome of the introduction of new pathogens and the development of new tree pandemics.

Chemical cauterization of peristomal granulomas with 50% trichloroacetic acid

Objetive: This study deals with the treatment of granulomas, one of the possible complications of the stomies, which are characterized as focal lesions, whose formation occurs due to the presence of aggressive agents to the tissues from the increase of the degree of cellularity and other tissue elements, generating annoyance and anxiety to patients. This study aims to describe the clinical results of the treatment of peristomal granulomas with the use of 50% trichloroacetic acid (TCA). Methods: This is a case series study, carried out by professionals in a referral center for the treatment of individuals with an ostomy in the city of Porto Alegre, state of Rio Grande do Sul. Results: The study sample consisted of 13 patients who underwent follow-up for treatment of peristomal granulomas with TCA. Data collection was performed during nursing consultations, based on the observation and photographic record of the granulomas, with subsequent evolution in the individual charts. Conclusion: It was concluded from this study that the regular treatment with TCA resulted in regression of the granulomas until their total disappearance, being this acid able to be considered, therefore, a potential therapeutic option; however, it is recommended to carry out further studies on its use in stomatherapy, seeking the use of more robust clinical research methodologies and with bias control.

Pulp improvement of oil palm empty fruit bunches associated to solid-state biopulping and biobleaching with xylanase and lignin peroxidase cocktail produced by Aspergillus sp. LPB-5

Oil palm empty fruit bunches is a lignocellulosic feedstock with biotechnological potential and thousands of tons are generated in the world each year. Filamentous fungi producing xylanases and ligninases in biopulping to obtain cellulose is a pulp improvement alternative. The enzymatic cocktail was produced in solid-state biopulping by Aspergillus sp. LPB-5 with 54.32 U/g xylanase, 13.41 U/g lignin peroxidase and low cellulase activity. Biological, thermal and chemical pretreatments were compared and enzymatic biobleaching was applied to pretreated pulps. Biopulping and biobleaching combination had 36.80% lignin loss, 26.27% hemicellulose reduction, 74.36% pulp yield with 36.56% digestibility. Alkaline and biobleaching combination removed 81.97% hemicellulose and 93.89% lignin with 73.59% digestibility. Enzymatic biobleaching increased the pulp digestibility in all pretreatments. Finally, the development of a bio-pretreatment to remove hemicellulose and alter the lignin-carbohydrate complex interface presented a soft process with great eco-friendly potential, where mild pre-treatments would reduce the use of aggressive agents.

Mechanical properties and surface roughness assessment of outer and inner HDPE pipe layers after exposure to toluene methanol mixture

Many investigations have been devoted to mechanical resistance and other general properties of plastic pipes as required by technical standards. However, very few research studies have been involved with internal and external pipe surface qualities in relation to aggressive chemical agents. The aim of this work is to present the effects of an equimolar toluene methanol (TM) mixture on mechanical and morphological properties of HDPE-100 pipe surfaces (or layers). Using optimum machining conditions, four different specimen geometries, representative of either surfaces or layers, are manufactured and subsequently aged in TM environment. Laboratory sorption experiments for inner (IL) and outer (OL) pipe layers show that equilibrium is attained within 4 days. Stress-strain tests indicate that outer and inner pipe envelopes, once separated, behave as if they were dissimilar pipes. Indeed, for the as-received pipe IL, the properties E, σy, σf, and ef exceeded those of the OL by 50%, 11%, 9%, and 6%, respectively. After 7-day exposure to TM mixture, the same trend is conserved with somewhat lower values. Most of filament properties are also in favor of the IL after 1290 days in TM mixture. It is found that E dropped significantly compared to the as-received material (OL = − 35% and IL = − 43%) while ef for OL is cut by almost two thirds. The outer surface is rougher than the inner one due to interaction with the extrusion die. As a result, the TM mixture generally causes PE swelling and narrows the gap between roughness (Rz) values with a more pronounced effect for the external surface. The value of Rz dropped from 7.15 to 2.80 μm after 1290 days, whereas the internal surface showed a slight increase up to 7%. This is explained by the particularities of the extrusion process which cools the external surface rapidly giving rise to different morphologies in pipe layers associated to the plasticizing effect of the solvent. Structural changes imparted by extrusion and TM ageing are characterized via crystallinity and oxidation induction time (OIT). It is concluded that after 1290 days, crystallinity and OIT decreased for IL and OL because of structure degradation such as anti-oxidant depletion and pigment loss. Interestingly, it is concluded that crystallinity evolution coincides with OIT progression according to lifetime and to position crosswise pipe wall.

Mode I fracture evaluation of CFRP-to-concrete interfaces subject to aggressive environments agents: Freeze-thaw cycles, acid and alkaline solution

The long-term durability of the interface between FRP (fiber reinforced polymer) and concrete is crucial to the safety of FRP strengthened concrete structures. Some experimental works have been carried out to investigate the effect of environmental factors on model II fracture behavior of the FRP-to-concrete interface. However, fewer efforts have been made to estimate interfacial durability under mode I loading. This study evaluates the mode I fracture energy release rate of CFRP (carbon fiber reinforced polymer)-to-concrete interface subjected to freeze-thaw cycling, acid attack, and alkali attack. Significant decrease of fracture energy release rate is observed after environmental conditioning. With the increase of freeze-thaw cycles and soaking time, the failure mode of the specimen changes from tensile failure of concrete to adhesive failure along the interface. Test results also confirm that the durability of the CFRP-to-concrete interface can be improved by application of silane coupling agent under freeze-thaw cycling and alkaline condition.

Biotic / Abiotic Stress Influences on Human Epidermal Keratinocyte Cells

Human epidermal keratinocyte cells are the first defence blocks against the aggressive agents such as pathogens and xenobiotic materials. Synthesis process of the cellular proteins can be affected by abiotic stresses (aBS like: SiO2 nanoparticles) and biotic stresses (BS like: Virus), leading to the alteration of consumed energy profiles of proteins. The consumed energy profile of each protein was calculated based on their consumed ATP during the amino acids synthesizing procedure. Cells consumed more ATP, more energy, to synthesize more proteins under BS conditions compare to aBS conditions. Our results suggested that, the cells infected by pathogens are tend to survive longer than the treated cells by xenobiotic materials. Our data analysis revealed that the most energy reduction took place under aBS conditions. So, aBS could have severe effect on energy production pathways and decrease the energy source of cells. Moreover, the results demonstrated that the complexity of cellular protein networks under aBS conditions were more than BS conditions. It seems the cellular energy reduction under aBS conditions is one of the important factors in cell death. In addition, the position of proteins in the protein network was another important factor that should be carefully considered.

Water and chloride permeability of cement‐based mortar with additions of dehydrated cacti

AbstractBACKGROUNDThis investigation presents experimental results concerning water and chloride permeability of cement‐based mortar specimens fabricated with botanical (green) dehydrated additions such as Nopal (Opuntia ficus‐indica) and Aloe vera. Mortar without such additions served as control. The natural dehydrated additions, Nopal or Aloe vera, were mixed with ordinary Portland cement and sand at different percentages of cement replacement (0%, 1%, 2%, 4%, or 8% of the cement mass). To characterize water and chloride ion transport in such mortars, 5 × 5 × 10‐cm prisms were fabricated (three prisms per mixture).RESULTSThe results showed improvements in both water absorption‐desorption (on average: 10% decrease in capillary absorption; 6% increase in water penetration resistance; 58% decrease in effective capillary porosity; and 2% decrease in capillary sorption) and chloride transport (14% decrease in surface chloride concentration, and 31% decrease in chloride concentration at 7 cm into the mortar) within the dehydrated Nopal replacement mixtures (≤2% of the cement mass). Aloe vera additions did not improve the corresponding parameters of water and chloride ion transport into the mortar.CONCLUSIONSAddition of dehydrated Nopal (≤2% of the cement mass) powder to cement‐based material (mortar) may increase its durability as most aspects of durability are related to the absorption of aggressive agents (water, chloride ions, etc.) into the material through its network of pores. Additions of dehydrated Aloe vera did not improve the protective performance of mortar against water and chloride ion transport and are, therefore, not suitable for increasing the durability of such cement‐based materials. © 2019 Society of Chemical Industry

A simplified estimation approach for service life of steel bar within concrete

Evaluating corrosion of steel bars within concrete cross section was the major task for durability of reinforced concrete structures. Although plenty of steel bars with various boundary condition caused huge computation load in numerical simulation, most of them were in different geometric locations while their other configuration was similar, such as temperature, moisture, and concrete composition. In this article, shape-based estimation approach was introduced for simplifying assessment of durability of concrete structures regarding numerical simulation. Based on the same penetration condition and diffusing media, the similarity of geometric configuration was the primary consideration of shape-based estimation and a mathematic model regarding the length of involving outline within a circular region with given radius was proposed. The crossbeam of an aged reinforced concrete arch bridge in coastal area was assessed, based on which shape-based estimation was proved to be applicable by comparing with finite element analysis. An evaluating tools called Weighed Corrosion Index in terms of corrosion degree of rebar in the whole concrete section was proposed and discussed in the application on degradation of concrete members. Moreover, for the purpose of modeling and post-processing, designed rebar within concrete section might not be exactly occupied by the nodes of meshed section and thus, content of aggressive agent cannot be directly obtained. An approach for identifying of rebar position and interpolating the content at rebar position was introduced.

Technical evaluation of calcium sulphate α-hemihydrate in oilwell application: An alternative to reduce the environmental impacts of Portland cement

The oil industry has been drilling wells since the last century using Portland cement as a cementing basic material. There are several environmental impacts associated with the Portland cement production from the raw materials extraction to the macro impact generated by clinkerization such as the emission of greenhouse gases, mainly carbon dioxide (CO2), combined with huge energy consumption for its production. The study of cement slurries with other precursors types is extremely important in order to obtain a paste with the best properties which are aimed to reduce the negative effects on the environment. Calcium sulfate α-hemihydrate (α-HH) is a material that presents high ecological potential and can be considered a less aggressive agglomeration agent to the environment than Portland cement. The objective of the present work was to develop and analyze the behavior of slurry systems based on α-HH as a basic agglomeration agent for oil well cementing. For this study, slurries were prepared with different water/gypsum ratio (WGR) and submitted to different curing periods (24 h, 7 and 28 days) and temperatures (27, 38 and 60 °C). Then, the additives were added to the slurries using different concentrations of retarding admixture (sodium tetraborate), of superplasticizer (polycarboxylate) and antifoam agent (silicol), aiming to obtain the technological properties required by the oil industry. Such formulations were evaluated through rheology tests, compressive strength and thickening, and thermal characterization (TG/DTG), X-ray diffraction (XRD), X-ray fluorescence (XRF), Infrared region absorption spectroscopy (IR) and scanning electron microscopy (SEM) techniques were performed to characterize the α-HH and its additive formulations. The results showed that the α-HH system with 0.5 WGR showed the best results. The additives were used satisfactorily to enable optimizing the technological properties of the slurry. The α-HH slurry is applicable for cementing shallow oil wells (500 m) under mild temperature and pressure conditions.

Desenvolvimento de método para avaliação do grau de saturação em concretos revestidos com argamassa

Pouco se sabe sobre a influência dos revestimentos de argamassa na penetração de íons cloreto nas estruturas de concreto. Em estruturas de concreto armado, localizadas em regiões costeiras, onde há frequente variação do grau de saturação e grande incidência de agentes agressivos, esses revestimentos podem trazer uma proteção complementar ao concreto. Este trabalho demonstra o desenvolvimento de uma metodologia para estudos relacionados à penetração de íons cloreto em concretos revestidos com argamassas em situações de variação de grau de saturação. A metodologia é baseada em experimentos realizados em corpos de prova de concreto revestidos com argamassa, submetidos a ensaios de secagem, imersão e estabilização para verificação de alterações no grau de saturação entre os diferentes materiais que os constituem, além da avaliação sobre a viabilidade da execução do processo de extração de material para análises químicas. Os resultados mostram que a utilização de concreto com chapisco e revestimento de argamassa apresenta boa resposta ao processo de extração, e apresentam uma forma satisfatória ao estudo da difusão, contanto que se observem, especialmente, fatores como a disposição dos corpos de prova no processo de estabilização, a selagem e a retirada de ar para que não haja perda de umidade e a confecção de número adequado de corpos de prova para cálculo de absorção.

Determination of economic losses of gas transportation companies from accidents on gas transmission pipelines

Selection of information was conducted to streamline the theoretical provisions and develop practical recommendations for determining the economic losses of gas transportation companies from accidents and failures on gas transmission pipelines, caused, in particular, by corrosion damage to a pipeline. The classification of losses due to the influence of corrosion on the linear part of gas transmission pipelines was considered. It was clarified that the structure of losses of gas transportation enterprises from corrosion during the operation of the linear part of gas transmission pipelines includes the cost of protecting the elements of structures from corrosion; losses from corrosion of metals. It was proved that the size of economic losses from accidents and failures on gas transmission pipelines to a large extent depends on the quality of the anti-corrosion protection system (measures, methods, ways and means of control), and also on observance of the rules of safe operation. The method of calculating economic losses, caused by accidents and failures on gas pipelines (taking into account the cost of compensation for losses from environmental pollution) is proposed, which takes into account the approach of neural networks and has advantages over the existing ones, as it characterizes: nonlinear quality criterion; the influence of energy characteristics of the interphase layers and aggressive agents on the corrosion processes in metal; nonlinear character of the monitoring system. On the basis of neural networks, a method of controlling the parameters, characterizing the technical state of steel structures in the oil and gas industry was developed, taking into account the nonlinear model for optimizing information and financial flows. The approach of neural networks can reduce errors in estimating the parameters of a nonlinear model that describes the system for monitoring underground pipelines.

Electrochemical Analysis of Austenitic Stainless Steel (Type 904) Corrosion Using Egg Shell Powder in Sulphuric Acid Solution

Stainless steel is one of the most widely used metals in many industries resulting from the formation of protective film layer on their surface which prevents the metal to react with corrosive environments such as, sulphuric acid. This acid contains various impurities, including aggressive agents which increase the risk of corrosion damage depending on the type of stainless steel used. In addition, it has been shown that corrosion causes acceleration in electrochemical process leading to decrease in the resistance of materials. This research objective is to investigate egg shell powder as corrosion inhibitor on (Type 904) stainless steel in 0.5M H2SO4 environment. This research utilized weight loss and potentiodynamic polarization measurements. Egg shell powder was found adequate to reduce corrosion rate of stainless steel Type 904 by 99.45% efficiency. The optimum concentration of inhibitor was 8g/250 ml 0.5% H2SO4. From polarization study, egg shell powder was indicated as mixed type inhibitor with predominant cathodic effect. In addition, the egg shell powder completely adsorbed onto the stainless steel surface following Langmuir isotherm.

New warning sensors to detect corrosion risk in reinforced concrete

Corrosion is the most frequent but also the most deleterious deterioration mechanism affecting reinforced concrete. In addition to the economic impact of the repair works, for historical concrete structures, corrosion can generate irreversible losses of original material of great cultural value. If the usual non-destructive electrochemical methods have highlighted their efficiency in evaluating on-going corrosion activity, they also have pointed out their drawbacks for accurate extrapolation and prevention. To prevent the corrosion phenomenon, by detecting the penetration of aggressive agents, a new warning sensor system has been developed. The principle of the technique is to embed thin metallic sheets (called orphan blades) in the concrete cover, at different distances from the surface to the reinforcing bars. Then the corrosion of those very reactive orphan blades is followed during the propagation of the carbonation front and/or the penetration of chloride ions using stimulated infrared thermography. The corrosion of the sensors at different depths is indicative of the ingress speed of the front and can alert about the risk of corrosion of reinforcing bars in the concrete. The purpose of this study is to present this new technique and the first results obtained in the laboratory on corroded and non-corroded sensors.

Analysis of the Effects of Aggressive Environments Simulating Municipal Sewage on Recycled Concretes Based on Selected Ceramic Waste.

This paper presents the results of research aimed at finding the possible ways of disposing of ceramic waste material, focusing mainly on the possibility of using it as aggregates in concretes exposed to an aggressive chemical environment (municipal sewage). The research part presents the preparation method and investigation of waste ceramic aggregates (red, glazed and sanitary ceramic aggregates). A suitable ratio of coarse to fine aggregates was selected, and their density, absorptivity and crushing strength were examined. All examined aggregates were also subjected to SEM analysis. Red ceramic aggregate is characterized by a greater degree of crushing compared to glazed and sanitary ceramic aggregate, by 205.7% and 439.4%, respectively. Another part of the research was to compare the properties of concrete with traditional aggregate (gravel, basalt) and with ceramic waste aggregate. The tested parameters included consistency, apparent density, absorptivity, flexural and compressive strengths of concretes. The study proved that the absorptivity of recycled composites is higher than that of traditional composites by 20.8–24.7%. The concrete based on sanitary ceramic waste has the highest strength parameters. Its compressive strength is higher by 10.5% and flexural strength by 5.9% compared with the basalt aggregate concrete. The compressive strength of sanitary ceramics concrete is higher by 42% and by 59% compared with concrete based on glazed ceramic and red ceramic aggregate, respectively. The last part of the research was to examine the resistance of concrete to aggressive environment. The scope of the work included the preparation of the research environment in the form of solutions with an increased concentration of aggressive agents (hydronium, sulfate, magnesium, ammonium ions). Among the concretes with ceramic aggregate, the highest decrease in the compressive strength was demonstrated by the concrete based on red ceramics (128.2%), while the smallest was demonstrated by the concrete based on sanitary ceramics (aggregate from sanitary ceramics (15.4%). The mass loss at different time intervals and compressive strength loss of samples stored in solutions were tested. The smallest weight loss caused by aggressive environment attack was recorded in the concrete based on ceramic sanitary and glazed aggregate (20.2% and 34.5%, respectively, after 120 days of aggressive environment).