Tensile Strength Test Research Articles

Mechanical properties of modern restorative “bioactive” dental materials - an in vitro study

This study aimed at assessing the mechanical properties and degradation of commercial bioactive materials. The bioactive materials (Activa Bioactive Restorative, Beautifil Flow Plus F00, F03, Predicta Bulk Bioactive) and composite resin Filtek Supreme Flow were submitted to flexural and diametral tensile strength tests (FS, DTS), modulus of elasticity (ME) evaluation, and analysis of aging in 70% ethanol and saliva on their hardness and sorption. The results for DTS ranged from 33.16 MPa (Beautifil Flow Plus F03) to 47.74 MPa (Filtek Supreme Flow). The highest FS was 120.40 MPa (Predicta Bulk Bioactive), while the lowest values were 86.55 MPa (Activa Bioactive Restorative). Activa Bioactive Restorative showed the lowest ME, as well as the highest water sorption both in alcohol and artificial saliva. Moreover, aging in saliva induced a significant decrease in hardness for Activa Restorative (p < .01). Alcohol storage caused a significant decrease in hardness for all materials (p < .0001). All tested materials met the basic requirements for light-curing materials in terms of DTS and FS. However, all materials showed higher sorption in alcohol than in saliva, while hardness decreased significantly after 30 days. Predicta Bulk Bioactive presented the highest mechanical parameters, initial hardness, and the lowest sorption of alcohol and saliva.

Microstructural and mechanical properties of boron carbide (B4C) coated RDSO wear plate sample

In this research, a comparative investigation was carried out on the microstructural and mechanical characteristics of boron carbide (B4C) coated RDSO (Research design & standard organization, India) approved steel sample and uncoated RDSO steel samples intended for applicable as wear plates of ballast cleaning machines which is a railways track maintenance machine. Wear plates of ballast cleaning machines are subjected to extreme abrasion & impact stresses because they directly come in contact with railways ballast. Microstructural examinations were performed using scanning electron microscopy (SEM) and optical microscope to characterize the coating’s homogeneity, adhesion, and interfacial bonding with the steel substrate. Mechanical tests, including hardness testing, tensile strength, and wear tests, were conducted to understand the coated sample’s performance compared to the uncoated counterpart. Results indicated that the average micro-hardness values, 428 ± 10 HV and 302 ± 10 HV was obtained using Vickers hardness test done on the samples B4C coated RDSO sample and uncoated RDSO sample respectively. The average coefficient of friction (COF) for the carbide-coated sample was 0.33 under a 10 N load, while the uncoated sample had a COF of 0.64. This demonstrates that the carbide coating greatly improves wear performance. This comparative analysis suggests that B4C-coated steel is a promising railways for wear plate applications in ballast cleaning machines, providing increased lifespan and better performance.

3D Printing of Virucidal Polymer Nanocomposites (PLA/Copper Nanoparticles)

Metallic nanoparticles with virucidal properties dispersed in a polymeric matrix have gained prominence in the scientific community as a rapid and effective alternative that employs the additive manufacturing (AM) or 3D printing method. This study aims to produce filaments for 3D printing using polymer nanocomposites based on polylactic acid (PLA) and copper nanoparticles (CuNPs) in different proportions. The virucidal activity of various proportions of nanoparticles in PLA was investigated. The composites were produced following a mixture design (DOE) with concentrations ranging from 1% to 2% copper nanoparticles, which were blended with PLA using a single-screw extruder. The samples were characterized by thermogravimetry (TG), differential scanning calorimetry (DSC), tensile strength testing, and fracture analysis using scanning electron microscopy (SEM). A thermal analysis of the composites indicated that the CuNPs contributed to an increase in the degradation temperature and crystallization of the PLA. Sample S7 (1.25% of CuNPs) exhibited a 4% increase in the degradation temperature compared to pure PLA. The best tensile strength results were observed in sample S7 (1.25% of CuNPs), 30% more than sample S3 (1.33% of CuNPs) due to good material cohesion, as evidenced by microscopy analyses. Regarding virucidal analyses, most composites demonstrated virus inhibition activity.

Experimental Investigation of Young Concrete Properties Needed for Proper Analysis of Concrete Pavements Behavior During the Hardening Process

In this paper there are presented results of experimental investigation of young concrete properties. During design process of concrete structures there is used number of mechanical properties of concrete that are not normally part of the concrete specifications. Desirable values are often related to primary parameter of concrete – mean concrete compressive strength. Some of them are poorly or even not at all described at the very beginning of concrete maturing. This paper describes results obtained from common mechanical test of compressive and tensile strength, shrinkage strain and two author’s test dealing with creep under constant compressive and tensile stresses of young concrete and also temperature development in quasi-adiabatic conditions.

Investigation of Near-Infrared Spectroscopy for Assessing the Macroscopic Mechanical Properties of Cross-Linked Polyethylene During Thermal Aging

The present study investigates the relationship between the near-infrared (NIR) spectral characteristics of cross-linked polyethylene (XLPE) insulation materials and their macroscopic properties, with the aim of establishing a reference framework for non-destructive material aging analysis. Accelerated thermal aging tests were conducted on samples of XLPE cables. These samples underwent Fourier-transform infrared spectroscopy (FTIR), elongation at break (EAB), and tensile strength (TS) tests. The temporal variation curves of the carbonyl index (CI), EAB, and TS were obtained at aging temperatures of 105 °C, 135 °C, 155 °C, and 180 °C. Additionally, NIR spectroscopy was performed on the aged XLPE samples, producing absorbance curves corresponding to different aging times at these temperatures. The absorption peaks of ‘C-H (-CH2-)’ (1730 nm/1764 nm) were analyzed to determine their temporal variation patterns. Finally, a correlation analysis was conducted between the NIR results and those of the FTIR, EAB, and TS tests, revealing numerical relationships between NIR characteristic peaks and FTIR, EAB, and TS data. These quantified correlations demonstrate that NIR can effectively represent macroscopic mechanical properties, thereby simplifying the procedures for monitoring material aging and providing valuable results without requiring destructive testing. Results indicate that there is a certain feasibility in replacing traditional cable aging tests with NIR.

An effect of nano alumina and nano titanium di oxide with polypropylene fiber on the concrete: mechanical and durability study

For a long time, researchers have worked to improve the qualities of cement-based mixes. Because of their small size, strong reactivity, and huge surface area, nanoparticles are becoming more and more regarded as one of the greatest substitutes for cement because of their capacity to increase durability and strength. This work presents the results of an experimental investigation into the strength and durability properties of fiber-reinforced concretes with polypropylene (PP) fibers added to the concrete by volume and nano Al2O3 and nano TiO2 are used as partial substitutes for cement. Nano Al2O3 and nano TiO2 particles used ranged in size from 30 to 300 nm. The specimens were cast using cement blended nano Al2O3 and nano TiO2 percentages of 1%, 2%, 3%, and 4% by weight of cement. M55 grade concrete was employed for the casting process. The addition of PP fibers to the concrete was 0.5% by volume. The specimens underwent a battery of mechanical tests, including microstructural testing, compression testing, split tensile strength testing, and rupture modulus testing. Furthermore, tests for durability factors such as porosity, sorptivity, and degradation were conducted, and the findings are presented. By comparing the outcomes, it was shown that the inclusion of 0.5% PP fibers and 2% nano Al2O3 or nano TiO2 improved the mechanical qualities, but a decrease followed this in strength. The findings demonstrated that 2% nano Al2O3 combined with 0.5% PP fiber had a greater mechanical strength than 2% nano TiO2.

Towards coupling agent-free composites made from regenerated cellulose/HDPE by UV radiation-induced cross-linking

ABSTRACT This research aims to enhance fibre-matrix adhesion in bio-based fibre-reinforced polyolefins without using adhesion promoters. The primary focus is to establish a cross-linking mechanism between cellulose fibres and polyethylene by applying UV irradiation to a UV-transparent matrix and UV-absorbing fibres. The influence of UV treatment on the composite properties is evaluated by tensile, interfacial and interlaminar shear strength tests. The UV irradiation decreases the critical fragment length in single fibre fragmentation tests, indicating an improved fibre-matrix adhesion. The UV-irradiated composites’ tensile strength and Young’s modulus are found to be ~10% (for 3- and 8-minute irradiation) and ~50% (for 8-minute irradiation), respectively, higher than those of the untreated samples. Furthermore, the UV irradiation leads to an improvement in the interlaminar shear strength by 25%. The variation of the UV-irradiation time (3 min and 8 min) and the comparison of the properties of semi-finished composite sheets and composites also reveal chemical and physical changes in the regenerated cellulose fibres due to heat adsorption. The proposed mechanism of interfacial crosslinking is confirmed by FTIR spectroscopy. The results suggest an approach to overcome poor compatibility between hydrophobic polyolefin matrix and hydrophilic cellulose-based fibres, resulting in adhesive-free bio-based composites.

Evaluating and optimizing metals for kitchen equipment production

This study assesses the mechanical properties and corrosion resistance of three stainless steel grades (316, 201, and 304) used in kitchen equipment manufacturing, emphasizing their performance based on specific metrics. Brinell hardness tests revealed values of 310.13 HB for 316, 286.49 HB for 201, and 276.13 HB for 304. Impact strength and tensile strength tests showed that 316 outperformed the others due to its higher chromium, nickel, and molybdenum content and enhanced mechanical properties from annealing, quenching, and tempering processes. Fatigue strength testing indicated that 316 had the highest endurance strength. Corrosion tests confirmed that all three grades exhibited no corrosion. These results indicate that stainless steel 316 has superior mechanical properties and corrosion resistance, making it an excellent choice for manufacturing durable and reliable kitchen equipment.

Research on Two-Layer Polymer Composites Alternatively Obtained in a Constant Magnetic Field.

The aim of this research was to obtain two-layer polymer composites with favorable mechanical and functional properties. The composites consisted of one lower layer of polymer with less elastic properties, containing no admixtures, and one upper layer of polymer with more elastic properties, containing plant admixtures, in the amount of 10% by weight of either goldenrod (Solidago virgaurea L.), or of turmeric (Curcuma longa L.). The admixtures S. virgaurea and C. longa were intended to introduce new biodegradable and medicinal properties without causing too much deterioration of physical or mechanical properties. Some polymer composites additionally contained magnetic particles in the form of carbonyl iron (Fe) in the amount of 20% by weight. The tests of mechanical tensile strength of the composites, water absorption, frost resistance, and surface contact angle were performed. Microscopic examinations determined the roughness of the cross-sectional surfaces. A constant magnetic field with magnetic induction B, which was an additional external factor changing the properties and structure of two-layer polymer composites, was also used in the research.

Prototype of Self-Service Electronic Stethoscope to Be Used by Patients During Online Medical Consultations.

This article presents the authors' design of an electronic stethoscope intended for use during online medical consultations for patient auscultation. The goal of the project was to design an instrument that is durable, user-friendly, and affordable. Existing electronic components were used to create the device and a traditional single-sided chest piece. Three-dimensional printing technology was employed to manufacture the prototype. Following the selection of the material, a static tensile strength test was conducted on the printed samples as part of the pre-implementation investigations. Results: Tests on samples made of PLA with a 50% hexagonal infill demonstrated a tensile strength of 36 MPa and an elongation of 4-5%, which was deemed satisfactory for the intended application in the stethoscope's manufacture. The designed and manufactured electronic stethoscope presented in the article can be connected to headphones or speakers, enabling remote medical consultation. According to the opinion of doctors who tested it, it provides the appropriate sound quality for auscultation. This stethoscope facilitates the rapid detection and recognition of cardiac and respiratory activity in humans.

A Taguchi-based study on the control factors of reinforced composites with the fiber of coir and pineapple leaves.

The use of composite materials, whether metallic or non-metallic, is becoming more popular nowadays because of some of their superior characteristics compared to the use of wood and metallic materials alone. From this perspective, a new natural fiber reinforced composite by varying the fiber orientation was developed in this study using coir and pineapple leaf fiber. This work uses the Taguchi method to investigate the different effects of control factors on mechanical and physical characteristics of the fabricated natural fiber-based composites. Various control factors were used, including fiber ratios, angles of orientation, and mat types. The testing was conducted in accordance with ASTM standards, and the results were validated through various statistical analyses including Taguchi orthogonal array analysis, confirmation tests, regression analysis, and analysis of variance (ANOVA). Based on the analysis and validation, the highest mean impact strength was found 53.93J/cm2, tensile strength 31.94MPa, flexural strength 46.365MPa, Rockwell hardness number 77, and lower water absorption rate only 3.62%. From the confirmation test, margin of errors was found to be 4.84%, 2.59%, 2.35%, 6.62%, and 2.334% for impact, tensile, and flexural strength, Rockwell hardness, and water absorption test respectively. The variation of the experimental and predicted results was observed from the regression analysis, and it was 2.93 to 0.4J/cm2, 2.12 to 0.79MPa, 3.54 to 0.33MPa, 2.33 to 0.8 RHN, and 0.92%-0.13% for impact, tensile, and flexural strength, Rockwell hardness, and water absorption test respectively. Overall, ANOVA analysis was used to examine the effects of different control variables, and it was discovered that the angle of orientation of fibers had a substantial impact on flexural strength and water absorption rate were 72.30% and 70.89% respectively. Similarly, mat types on tensile strength and Rockwell hardness with 46.47% and 50.67% respectively. In addition, the impact strength was most significantly affected by the wt.% ratio of fibers, which was approximately 50.32%. From the above characteristics and their environmentally friendly behavior, these composites can be used in the place of synthetic fiber-based products.

Evaluation of Open-Graded Friction Course Mixes with Agro-Waste–Derived Natural Fibers

Abstract As an agrarian economy, India produces the second-largest amount of agricultural waste globally. The practices of indiscriminately disposing of this waste in open lands or burning it in agricultural fields give rise to significant environmental and health concerns. With an increasing need for sustainable road construction materials and practices, engineers are continuously looking for the use of agricultural and plantation-based resources, particularly natural fibers. In order to address problems like binder draindown and raveling associated with high binder content and low fine content, this study focuses on the open-graded friction course (OGFC), which incorporates fibers. Under the investigation on the potential applications of natural fibers, including banana fiber (BNF), sisal fiber (SIF), pineapple fiber (PNF), sunn hemp fiber (SHF), and cellulose fiber (CLF), the study assesses various mix design parameters across 12 combinations, including bulk density, air voids, stone-on-stone contact, binder draindown, and abrasion loss (aged and unaged) at different binder contents, fiber lengths, and dosages. Results indicate an optimum binder content of 6.0 % for all fiber-reinforced OGFC mixes. Grey relational analysis and indirect tensile strength (ITS) tests further validate the improved performance of these mixes, showcasing reduced draindown, and abrasion loss, and enhanced ITS with the incorporation of natural fibers. The comprehensive evaluation of mix design properties ranks BNF as the top-performing, followed by PNF, SIF, and SHF, as indicated by the grey relational grade. This research emphasizes the potential of using agricultural waste for sustainable infrastructure development and promoting eco-friendly practices in the construction industry.

Analysis of the porous system structure, permeability coefficient and mechanical resistance of pervious concrete

ABSTRACT When used as a surface layer on permeable pavements, pervious concrete promotes water percolation, thus helping urban water runoff management. Water percolation occurs due to its porous structure, and interconnected pores are fundamental for its efficiency. To better understand pervious concrete, this study aimed to analyse the porous structure and mechanical and hydraulic properties of pervious concrete. Compressive strength, flexural tensile strength, porosity and permeability coefficient tests were performed. The porous structure was characterised using three approaches: ImageJ software, Sketchup software and scanning electron microscopy. According to hardened state results and Brazilian technical standards, pervious concrete can be used cast-in-place for pedestrian traffic or light vehicular traffic areas. Pervious concrete pores’ length, perimeter, Feret’s diameter and width increase, while circularity and the number of pores decrease as the void volume increases, indicating that as the volume of voids in pervious concrete increases, the pores become larger, more elongated and smaller in quantity. Good to excellent correlations were found between the concrete’s compressive strength, flexural tensile strength and permeability coefficient and the concrete’s porosity, pore area, pore volume and geometric tortuosity, although different image analysis methodologies were used to obtain the porous structure data.

Study on strength properties of lightweight foamed composite with 0.6% volume fraction treated kenaf fibre

The Lightweight Foamed Composite (LFC) exhibits inherent limitations in mechanical strength due to its porous structure, hindering its wider application. This study presents a novel approach to enhancing LFC's mechanical strength properties by incorporating Treated Kenaf Fibre (TKF), a domestically available high-yield crop in Malaysia, offering a green and effective solution for “Sustainable Composite Reinforcement.” To optimize fibre incorporation, raw kenaf fibres were pre-treated with a 1.5 M NaOH solution for 12 hours. Subsequently, a 0.6% TKF by Volume Fraction (Vf) was integrated into the LFC mix. The fresh and hardened density of Treated Kenaf Fibre Lightweight Foamed Composite (TKFLFC) was controlled within 1200 ± 5% kg/m3. Next, the mechanical properties evaluation of TKFLFC involved compressive, flexural, and splitting tensile strength tests. By the 28-day mark, the compressive strength of LFC-TKF 0.6 showed a moderate improvement of 4%, while the flexural and splitting tensile strengths significantly increased by 56% and 62%, respectively, compared to LFC-Control. A performance index evaluation emphasizes the contribution of TKF in enhancing LFC's mechanical strength at the same densities. These findings demonstrate the potential for utilizing TKF in LFC as a green, sustainable civil construction material, offering valuable insights and opportunities for innovation.

The effect of Bacillus bacteria and nano clay on the properties of roller pavement concrete and self-healing of its cracks due to calcium carbonate deposition

ABSTRACT One of the best methods to enhance the strength and durability of concrete and repair the cracks is to use a self-healing mechanism, based on bacterial-induced calcite precipitation. In this study the effect of this mechanism was investigated on untreated roller concrete pavement containing nanoclay. The bacteria used in this study was Bacillus sphaericus. The specimens were characterized using permeability, compressive strength, tensile strength, and ultrasonic tests. At first, one face of the specimens was subjected to bacterial self-healing to permeability test and all faces to compressive and tensile strength test. Also, using a copper sheet, a standard crack was created on one side of the specimens, and then the repair rate of these cracks due to bacterial self-repair was investigated by ultrasonic testing. The results showed that permeability, compressive and tensile strengths improved by 2.2%, 7.1% and 14.4%, respectively in the treated specimens without nanoclay. Meanwhile, in concrete specimens containing nanoclay, the improvement rate increased. Also, the results of the ultrasonic test showed that repair occurs by this coating and its rate is 12% in nanoclay-treated specimens and 7% in treated specimens without nanoclay, which shows the positive effect of nanoclay in improving the bacterial repair of standard cracks.

Failure and Degradation Mechanisms of Steel Pipelines: Analysis and Development of Effective Preventive Strategies.

The increasing challenges related to the reliability and durability of steel pipeline infrastructure necessitate a detailed understanding of degradation and failure mechanisms. This study focuses on selective corrosion and erosion as critical factors, analyzing their impact on pipeline integrity using advanced methods, including macroscopic analysis, corrosion testing, microscopic examination, tensile strength testing, and finite element method (FEM) modeling. Selective corrosion in the heat-affected zones (HAZs) of longitudinal welds was identified as the dominant degradation mechanism, with pit depths reaching up to 6 mm, leading to tensile strength reductions of 30%. FEM analysis showed that material loss exceeding 8 mm in weld areas under standard operating pressure (16 bar) induces critical stress levels, risking pipeline failure. Erosion was found to exacerbate selective corrosion, accelerating degradation in high-stress zones. Practical recommendations include the use of corrosion-resistant materials, such as duplex steels, and implementing integrated monitoring strategies combining non-destructive testing with FEM-based predictive modeling. These insights contribute to developing robust preventive measures to ensure the safety and longevity of pipeline infrastructure.

Comparison of Tensile Strengths of Synthetic and Natural Absorbable Sutures in Minor Oral Surgeries: A Randomized Clinical Trial

Background: Proper suture selection is important in oral surgery for uncomplicated healing. This study was conducted to compare the tensile strength of two absorbable natural and artificial sutures in minor oral surgeries. Materials and Methods: In this randomized clinical trial study, two types of absorbable sutures, 0-4 Chromic catgut and Polyglycolic Acid (PGA) were randomly used in minor oral surgery in 16 systemically healthy patients. Tensile strength tests were performed for one part of the suture thread before suturing along with sutures removed on days 7 and 10 post-surgery (24 suture threads for each group). Suture parts were tested by a Universal Testing Machine for tensile strength. Results: The mean tensile strength of chromic catgut suture on day 0 was )10.40±1.61 N), 7th day (8.76±1.66 N), and 10th day )6.45±1.14 N). The mean tensile strength of the PGA suture thread on day 0 was (16.82±2.94 N), 7th (14.56±2.66 N), and 10th day (11.50±2.15 N). The mean tensile strength of the PGA suture was significantly higher at baseline, 7 and 10 days after surgery compared to the absorbable chromic catgut suture (p&lt;0.001). In chromic catgut sutures and PGA sutures, the mean tensile strength on day 10 was significantly lower than on days 7 (p&lt;0.05) and 0 days (p&lt;0.001), and the mean tensile strength on day 7 was significantly lower than on day 0 (p&lt;0.05). Conclusion: The results indicate that PGA sutures maintain significantly higher tensile strength compared to chromic catgut sutures throughout the post-surgical period. This suggests that PGA sutures may be more suitable for minor oral surgeries where higher tensile strength is required for optimal wound healing. Surgeons should consider the specific needs of the surgical site and the duration of healing when selecting the appropriate suture material.

To Study the Mechanical Properties of Concrete Using Coconut Fibre Ash &amp; CRT Powder with Addition of Asbestos Fiber

One of the ongoing issues with global sustainability in the twenty-first century is concrete. Cement has the highest carbon dioxide emissions and energy consumption of all the components used in concrete, which include water, fine aggregates, cement additives, and cement itself. Cathode-Ray Tube (CRT) technology has fallen behind as new technologies like Liquid Crystal Displays (LCD) and LED Display Panels are constantly replacing it. As a result, there are more CRTs that need to be disposed of annually worldwide. It can modify the physical property of concrete. Use and Recycling of CRT Tube also reduce environmental hazard. Coconut coir fiber ash in concrete construction is an alternative of cement, coconut fiber ash has a good tendency when uses as a partial replacement for cement. Cement being costly material, so if partially replaced by coconut fiber ash can reduces the cost of concrete. The heat of hydration is decreased, which help in improving the drying, shrinkage and facilitate durability of the concrete mix. Coconut Fiber Ash has a tendency to increase Compressive, tensile, and flexural strength. Asbestos fibers were historically used as an additive in concrete to enhance its properties, primarily its tensile strength and resistance to cracking. The mechanical qualities of concrete, such as its tensile strength, durability, and fire resistance, were successfully improved with asbestos fibers. Because of this, asbestos-reinforced concrete gained popularity in the middle of the 20th century for a variety of building uses. This project's aim is to stop environmental damage caused by inappropriate disposal by employing it as an additional material in specially developed by Coconut Fiber Ash and CRT. The 11% of Coconut Fiber Ash and CRT powder replace with cement and with addition of 0.8% Asbestos fibers. Fiber were used as reinforcement. The compression strength test, flexural strength test, and split tensile strength test were used to determine the maximum proportion of replacement

Pengaruh Penambahan Gliserol dan Kaolin serta Variabel Suhu pada Pembuatan Bioplastik dari Kulit Pisang Raja

Bioplastic is a kind of plastic made from natural polymers such as starch with a mixture of plasticizers and fillers. Banana peel (Musa paradisiaca L) can be used as a source of starch because it contains high starch, which is approximately 80%. This study was aimed to determine the effect of variations in glycerol concentration, kaolin concentration, and stirring temperature on the characteristics of the bioplastic, where glycerol and kaolin act as plasticizers and fillers. The experiment was conducted by mixing raw materials in the form of banana peel powder, glycerol, and kaolin. The concentrations of glycerol and kaolin were varied at 5%; 10%; 15%; 20%; 25% v/w starch, and 5%; 10%; 15%; 20%; 25% w/w starch, respectively, until bioplastic with optimum mechanical properties was obtained. Furthermore, the experiment was continued with temperature variations of 65°C; 70°C; 75°C; 80°C; and 85°C. The quality of bioplastics was examined through the thickness, tensile strength, elongation percentage, water absorption, biodegradation, and FTIR tests. Optimum results were obtained in bioplastics with a glycerol concentration, kaolin concentration, and stirring temperature of 20%, 15%, and 75oC, respectively. The relatively best bioplastics yielded had characteristics of a thickness of 0.084 mm, tensile strength of 13.047 MPa, elongation of 13.13%, and water absorption of 3.56%. These results have met Indonesia's national standards for bioplastics.

Sustainable Alkali-Activated Self-Compacting Concrete for Precast Textile-Reinforced Concrete: Experimental-Statistical Modeling Approach.

Industrial and construction wastes make up about half of all world wastes. In order to reduce their negative impact on the environment, it is possible to use part of them for concrete production. Using experimental-statistical modeling techniques, the combined effect of brick powder, recycling sand, and alkaline activator on fresh and hardened properties of self-compacting concrete for the production of textile-reinforced concrete was investigated. Experimental data on flowability, passing ability, spreading speed, segregation resistance, air content, and density of fresh mixtures were obtained. The standard passing ability tests were modified using a textile mesh to maximize the approximation to the real conditions of textile concrete production. To determine the dynamics of concrete strength development, compression and flexural tests at the ages of 1, 3, 7, and 28 days and splitting tensile strength tests of 28 days were conducted. The preparation technology of the investigated modified mixtures depending on the composition is presented. The resulting mathematical models allow for the optimization of concrete compositions for partial replacement of slag cement with brick powder (up to 30%), and natural sand with recycled sand (up to 100%) with the addition of an alkaline activator in the range of 0.5-1% of the cement content. This allows us to obtain sustainable, alkali-activated high-strength self-compacting recycling concrete, which significantly reduces the negative impact on the environment and promotes the development of a circular economy in the construction industry.