Flexural Strength Research Articles

Fiber-reinforced gypsum composites with ultra high ductility: Investigation of physical and mechanical properties

The brittleness of traditional gypsum hinders its widespread utilization, despite its positive attributes as an environmentally and economically sustainable material. To tackle this challenge, Ultra High Molecular Weight Polyethylene (UHMWPE) fibers were introduced into gypsum matrix to produce a novel kind of gypsum composites with superior ductility (named Ultra High Ductility Gypsum Composites, UHDGC). Fiber content and water-gypsum ratio were investigated as experimental variables. Test results indicated that the UHDGC exhibits strong pseudo strain hardening behavior, with tensile strains capacity up to 7.4 %, which is several orders of magnitude higher than that of the original gypsum. The addition of fibers dramatically enhanced the strength and deformability of the UHDGC. With an increase in water-gypsum ratio, the compressive, tensile, and flexural strengths of the specimens decreased linearly, while toughness plateaued. Microscopic morphology analysis revealed that fibers were tightly bound to hydrated gypsum, and high fiber dosage (i.e., 2 %) led to fiber agglomeration. Furthermore, proposed prediction models for porosity and mean tensile cracking strength aligned well with test results. That can be an invaluable guide for the design and strength prediction of UHDGC.

Assessment of fiber loading effects on mechanical properties and prediction of mechanical properties via artificial neural networks of hybrid jute /sheep wool epoxy composites

Abstract The primary purpose of this study is to realize the effect of fibre loading on mechanical properties like tensile, bending, impact, interlaminar shear strength and fracture toughness of hybrid composites made of alkaline treated jute and sheep wool hybrid fibres and epoxy. A series of composite laminates were prepared with varying fibre (30%, 40%, 50% and 60%) loadings using hand layup technique. The findings indicated that hybrid composite with equal amount of fiber and resin (JW50) showed a higher strength of 40 MPa against tensile load, maximum strength of 99 MPa against bending load, superior interlaminar shear strength (ILSS) of 3.09 MPa, and a maximum fracture toughness of 72 MPa.m1/2 compared to other fibre loadings. In terms of impact test, JW50 displayed the highest impact strength of 85.98 J/m, underscoring its exceptional capacity to absorb energy compared to other composites. The mechanical strengths of these composites were also predicted using an Artificial Neural Network (ANN) model, which generated accuracy of 87.46% for tensile strength, 86.31% for flexural strength, and 83.52% for impact strength. The absolute percentage errors were found to be 12.53%, 13.68%, and 16.47%, respectively, demonstrating the model’s reliability in estimating composite properties based on fibre content and composition. SEM images of fractured samples under tensile load reveal that higher resin content reduces fibre-matrix bonding, while a balanced fibre-to-resin ratio improves load transfer, but too much fibre leads to debonding due to inadequate resin justifying the experimental results.

Assessment of structural concrete made by sustainable sand at high temperatures: An experimental research

This study assesses the mechanical properties of sustainable sand concrete mixes of DM1*, DM2, DM3, and DM4 by absolute volume method when exposed to elevated temperatures. The concrete specimens were placed in a muffle furnace for two hours at (150–600 °C). Experimental investigations show that the mix strength increases (up to 300 °C), a sudden fall in strength at 450 °C, and a sharp decline at 600 °C was seen. At 600 °C, the highest reduction in compressive and flexural strength of the mixes was reported (21.2, 11.2, 16.6, and 20.4 MPa) and (2.87, 1.41, 2.42, 1.95 MPa), respectively. The concrete mix DM2 with (100 % recycled crushed sand) shows a more significant loss than other mixes. The concrete mix DM4 (50 % recycled crushed sand + 50 % desert sand + 12.5 % silica fume) performs significantly better than other mixes at elevated temperatures. Hence, 100 % recycled crushed sand in structural concrete is not recommended for engineering work.

Single fiber tensile strength of seagrasses and the development and characterization of zostera marina-based medium density boards

This study investigates the potential of the leaves of the seagrass Zostera marina (ZM) as an alternative raw material for the production medium-density boards. In the first part, the tensile strength properties of various types of seagrasses were investigated. Posidonia oceanica fibers (POF) exhibited a mean tensile strength of up to 123 MPa, while its leaves (POL) reached up to 27 MPa. The ZM leaves also showed a similar tensile strength to Posidonia oceanica leaves, 22.9 MPa. In the second part, ZM leaves and wood fibers (WF) are further processed to produce medium density boards with densities ranging from 500 to 700 kgm−3. The boards were evaluated for fire resistance, thermal conductivity, mechanical strength, and water resistance-related properties. ZM-boards demonstrated high fire resistance and lower thermal conductivity compared to boards based on wood fiber (WF), i.e. medium density fiberboards (MDF), of similar density. However, due to the low tensile strength and unique morphology of the seagrass leaves, ZM-boards display a lower flexural strength (up to 10.9 MPa) and lower resistance to water absorption compared to boards produced from wood fibers (WF). Boards made by Zostera marina can be a promising alternative to commercial MDF panels especially for interior applications prioritizing fire protection and thermal insulation but they are mainly suited for non-structural uses. Further examination of its acoustic properties would assess its potential applications as sound-absorbing architectural panels.

Recycled ceramic brick powder utilization in fiber reinforced 3D printing concrete: an eco-friendly substitute to conventional fine aggregates

The incorporation of recycled ceramic brick powder (RCBP) into conventional cast concrete has proofed its efficacy in substituting aggregates, improving strength, and contributing to environmental sustainability. Concurrently, 3D printing technology is emerging as a pivotal trend in intelligent construction. This study investigates the collaborative interaction mechanisms of 3D-printed RCBP concrete. Compressive and four-point bending tests along the x, y, and z-axis are conducted to evaluate its strength and anisotropy. Subsequently, the hydration products and pore structural characteristics were analyzed employing Scanning Electron Microscope (SEM) and X-CT experiments. Additionally, an environmental life cycle analysis is performed utilizing OpenLCA software. The results determined an optimal RCBP content of 25-wt% yields satisfactory performance in macro-mechanical properties (with maximal 65.57MPa for compressive strength and 12.66 MPa for flexural strength) and micro-structural characterization. Specifically, the drainage consolidation effect achieved through 3D printing technology mitigates the typical decline observed in conventional RCBP concrete. However, exceeding the 25-wt% threshold leads to a noticeable decline in mechanical strength due to inhomogeneous particle gradation and excessive aggregation of RCBP particles, despite a significant reduction in porosity. Furthermore, as RCBP incorporation increases from 0-wt% to 100-wt%, four environment impact indicators including Global warming potential (GWP), Acidification Potential (AP), Ozone Depletion Potential (ODP), and Abiotic depletion potential (ADP) respectively decline by 24.86%, 6.59%, 0.49%, and 0.62%, demonstrating exceptional environmental benefits. Notably, the tremendous influence on GWP is attributed to the remarkable carbon sequestration of RCBP, aligning with national carbon neutrality goals and advancing sustainable construction practices.

One step resource utilization treatment of solid waste: Preparation of high-performance building bricks from calcium carbide slag by ultra-high mechanical pressure

Calcium carbide slag (CCS), a bulk solid waste byproduct of the energy industry. This paper introduced an innovative ultra-high pressure contact forming technology that utilizes 100% CCS under high pressure conditions ranging from 100 to 400 MPa. investigated the effects of pressing pressure and curing conditions on the comprehensive performance of the resulting bricks. The findings reveal that bricks subjected to autoclave curing for a duration of 3 days exhibit optimal mechanical and waterproof properties. The bricks demonstrated the compressive and flexural strength of 37 MPa and 4.3 MPa, and a softening coefficient of 0.89. Furthermore, the bricks' dry density, wet density, and porosity index were measured at 1200 kg/m3, 1600 kg/m3, and 1.3, respectively. Notably, the leaching concentrations of toxic and harmful elements within the bricks are in compliance with environmental standards. This research delineates a viable avenue for the future resourceful utilization of solid waste.

Improvement of the nylon (N)-glass fiber (G) reinforced polyester composite properties by varying oxide ceramic particles and stacking sequences of N and G

Abstract This study investigated the mechanical and physical properties of hybrid composites made with nylon fiber mesh (N), woven glass fiber (G), and unsaturated polyester (UPE) resin filled with different oxide ceramic particles (CPs) (ZnO, Al2O3, ZrO2, and TiO2). The influence of the stacking order of N and G (GGNNGG, GNGGNG, NGGGGN, and NNGGGG) on the mechanical properties of the composites was also studied. The goals of this study are to determine the best CP and stacking sequence for enhancing composite properties (flexural and impact properties) and reducing water absorption. The composites were manufactured in two steps using hand lay-up and press molding techniques. The first step involved fabricating N/G/UPE-2%CPs composites with a ratio of 8:14:78 (vol%) and a GNGGNG stacking sequence, referred to as type 1. In the second step, a composite with optimum properties obtained from type 1 was used as a reference and compared to composites with three different stacking sequences of GGNNGG, NGGGGN, and NNGGGG, known as type 2. The three-point bending, Charpy impact, and water absorption tests were conducted. The results revealed that the mechanical properties of N/G/UPE-2Al2O3 and N/G/UPE-2ZnO composites are nearly identical and higher than the others. However, N/G/UPE-2Al2O3′s water absorption is lower than that of N/G/UPE-2ZnO. These results suggest that the N/G/UPE-2Al2O3 composite, with a GGNNGG stacking pattern and a flexural strength of 125.12 MPa, an impact strength of 84.2 kJ m−2, and a low water absorption of 0.56%, could potentially serve as biomaterials.

Dramatic mechanical increments of basalt fiber/phthalonitrile (BF/PN) composites by constructing a unique micro/nano hybrid interface

The weak interfacial interaction in basalt fiber reinforced polymer (BFRP) composite generally produces stress concentration failures. This study presents a method to enhance the interface properties in BF/PN composites by constructing a unique micro/nano hybrid interface onto BFs through the in situ complexation reaction and the subsequent introduction of CNTs. The muti-scale FePc/CNTs hybrid interface significantly improved the surface roughness/wettability of BFs and the mechanical properties of final BF/PN composites. A high flexural strength of 1098.8 MPa and a maximum ILSS of 62.8 MPa are observed in p-CNT3-BF/PN composites, increased by 64.8% and 93.2% compared with that of original BF/PN composite. The organic polar groups in FePc/CNTs hybrid improve interfacial compatibility and bonding of BFs with matrix, resulting in multi-scale interfacial interactions and stress transfer in BF/PN composites. This research will contribute to the construction of micro/nano hybrid interfaces onto fiber surface and offers valuable insights for the developments and applications of FRPs.

Simultaneously improved flexural strength and thermal conductivity of CaO-B2O3-SiO2 glass-ceramics with Si3N4 particle addition for LTCC applications

Simultaneously improved flexural strength and thermal conductivity of CaO-B2O3-SiO2 glass-ceramics with Si3N4 particle addition for LTCC applications

Behaviour of post-tensioned benches made of high-content recycled aggregate concrete reinforced with racquet string fibres

This study investigates the serviceability and structural behaviour of a new type of recycled aggregate concrete (RAC) bench with waste badminton racquet fibres. Twenty-one cantilever benches were tested in two Series with different fibre volume fractions (Vf = 0%, 0.5%, 1.0% or 1.5%). The RAC had 100% of natural aggregates replaced with recycled concrete aggregate (RCA). The benches in Series II were post-tensioned in flexure using an innovative Post-Tensioned Metal Strapping (PTMS) technique using 1, 2 or 3 straps. Tests were carried out to evaluate 1) static loading behaviour, 2) long-term behaviour after 365 days of sustained loading, and 3) human-induced vibrations. The static test results show that benches with 100% RAC and PTMS had higher capacity (by about 25%) that counterpart benches without PTMS. Hence, the maximum flexural strength of the cantilever bench was improved by 5.7% for the cantilever bench with PTMS strengthening, which further enhanced the flexural behaviour compared to the bench with only 1.5% of fibres. The human-induced vibration test results confirmed that the maximum vibration of the benches met the code limits for floor buildings. Finite element analyses of the RAC benches with PTMS were carried out in Abaqus®, and the experimental deflections agreed well (errors <5%) with the FEM results. A simplified fatigue life analysis confirmed that the RAC benches with PTMS can have a potential service life of up to 20 years. The use of glow-in-the-dark (GID) features into the benches in Series II enhanced their night-time visibility and visual appeal by up to 8 h. This research contributes towards the development of new applications for RAC with waste badminton racquet fibres, which can offer more sustainable solutions for the construction of urban furniture.

Improving the performance of crumb rubber concrete using waste ultrafine glass powder

Due to its superior toughness and environmental benefits over traditional concrete, crumb rubber (CR) concrete (CRC) gained considerable attention in both research and practical engineering fields. However, the static mechanical characteristics of CRC exhibit a certain level of decline as CR demonstrates a lower elastic modulus and less effective bonding capabilities with mortar when compared to natural aggregates. Consequently, this study explores the potential of substituting cement with ultra-fine waste glass powder (WGP) to enhance the mechanical characteristics and microstructure of CRC. The impact of varying WGP substitution rates on workability, wet packing density (WPD) in the fresh phase is examined. Moreover, analyses on compressive strength, flexural-tensile strength, ductility index, dynamic elastic modulus, damping ratio, and impermeability post-hardening are presented. The use of scanning electron microscopy (SEM), X-ray diffraction (X-RD), and mercury intrusion piezometry (MIP) provided insights into the influence of WGP on the micromorphology, mineral composition, and pore structure characteristics. The results revealed that WGP introduction enhanced the fresh properties of CRC, notably in terms of workability and WPD. The slump and slump-flow increased to 270 mm and 630 mm for WGP dosing increased to 30 %. A gradual enhancement in strength, dynamic elastic modulus, and impermeability was observed with increased WGP content, alongside a significant improvement in toughness. The compressive and flexural strengths of 30 % WGP were mentioned to be about 11 % and 62 %, respectively, and the permeability coefficient was reduced to 0.78 × 10−12 m2/s. The damping ratio initially decreases, then rises to a peak of 1.6 % at a WGP content of 30 %. Integration of WGP resulted in a progressive decrease in interfacial frictional zone width, average pore diameter, and porosity, while the fraction of harmless pores increased, likely aiding the strength and dynamic elastic modulus.

Effect of Fiber Reinforcement on the Flexural Strength of Long-Span, 3D-Printed, Interim Fixed Dental Prosthesis.

To inspect the impact of polyethylene fiber (Ribbond) on the long-span, 3D-printed, interim fixed dental prosthesis regarding fracture strength. A stainless steel platform was fabricated to replicate the partial edentulism for a maxillary four-unit fixed dental prosthesis. The prosthesis was fabricated by a Formlabs SLA 3D printer. The specimens were allocated into four groups of 20 each: experimental reinforced Group A (prosthesis with a slot reinforced with fiber); experimental Group B (prosthesis with a slot filled with 3D-printed material), negative control Group C (prosthesis with a slot); and control Group D (full-contour prosthesis). Fracture strength exams were performed with a universal tester. The fracture patterns were examined. A statistical analysis was conducted using one-way ANOVA and Tukey HSD test. The control group exhibited a significantly higher mean flexural load (D: 306.32 ± 50.76 N) compared to the other groups (A: 194.37 ± 68.02 N; B: 178.25 ± 42.67 N; and C: 156.68 ± 29.73 N; [P < .001]). No differences were identified among Groups A, B, and C. The fracture pattern differed between the nonreinforced Groups B, C, and D and reinforced Group A, with catastrophic failure observed in the nonreinforced group and unseparated failure observed in the reinforced group. The study findings demonstrate that the incorporation of Ribbond in 3D-printed, interim fixed dental prostheses does not significantly enhance their fracture strength. However, it does lead to a noticeable change in the fracture behavior, shifting from a complete failure to an incomplete fracture pattern.

Integration of plain woven carbon fiber yarn with 304 wire mesh reinforment on synthetic hybrid composite

This work focuses on a hybrid composite comprising a plain carbon fiber yarn weaved on a stainless steel wire mesh, bonded with epoxy resin (LY556) and hardener (HY951). The composite consists of a middle layer of wire mesh with carbon fiber yarns oriented at 90° and 45°, and incorporates carbon fiber mats into the top and bottom layers. The hand layup method was employed to stack these materials, and various mechanical tests were conducted to assess their properties. The composite with a 45° carbon fiber yarn plain-weaved on wire mesh had better mechanical performance than the 90° orientation. It had a maximum tensile stress of 83.63 MPa, which is 18.09 % higher than the 90° orientation. It also had 19.17 % higher flexural strength and 15.78 % higher toughness in impact tests. Additionally, field emission scanning electron microscope (FESEM) imaging and X-ray diffraction tests (XRD) were utilized to further analyze the composite’s structure and properties

In situ synthesis of Si3N4/h-BN composites by hot-pressed sintering

Various methods have been implemented to deal with the problem of the aggregation of h-BN in the Si3N4 matrix, thereby improving the machinability of Si3N4 ceramics. In this paper, the in-situ phase transformation of c-BN was introduced to prepare hot-pressed Si3N4/h-BN composites. Results show that compared with the direct addition of h-BN, the h-BN generated by the phase transformation of c-BN was more homogeneously disperse in Si3N4 matrix. Meanwhile, the phase transition (c→h-BN) enhanced the densification process, and the retarding effect of BN on the α→β-Si3N4 phase transformation and the Si3N4 grain growth was weakened. Thereby, the interlocking microstructure of elongated grains was greatly improved, and the fracture toughness and flexural strength of Si3N4/h-BN composites increased by 9.2 % and 11.5 %, respectively, after the addition of 5 vol.% c-BN. The proposed method provides a new idea for the preparation of composite ceramics.

Cross-Laminated Timber Panels Produced by Low-Grade Yellow-Poplar Sorted by Nondestructive Evaluation

Abstract To manufacture and market a uniform and consistent product, the US lumber industry developed grading rules to classify their lumber. Visual grading is the most commonly applied grading system, although nondestructive evaluation (NDE) could be applied. Therefore, the objective of this research was to evaluate cross-laminated timber (CLT) panels produced from yellow-poplar (Liriodendron tulipifera) lumber sorted by NDE and compare their bending properties in the major direction to standard published panels by the American National Standards Institutes/The Engineered Wood Association (ANSI/APA) PRG 320-2019. Ten panels were produced with dimensions of 3.75 inches thick by 18 inches wide by 120 inches long. Flatwise bending, shear block, and cyclic delamination tests were performed following ANSI/APA PRG 320-2019. The results of the bending tests indicated that the calculated characteristic values using NDE-sorted lumber resulted in a 19 percent higher bending strength (Fb) than published values in ANSI/APA PRG 320-2019 for stress-rated lumber (E1 and E4) and 35 percent higher than visually graded yellow-poplar CLT panels reported by Azambuja et al. However, the modulus of elasticity (MOE) values (1.56 by 106 psi) were lower than those listed for E1 and E4 type panels. The adhesive evaluation showed delamination in some samples located in the outer areas of the panel, indicating that proper adhesion is possible with improvements in the panel production process used in the research. Overall, the results suggest potential opportunities to utilize yellow- poplar lumber that does not meet a visual structural grade category under Northeastern Lumber Association Manufacturers’ rules by classifying and sorting the lumber according to static MOE (MOEs) values assessed using NDE.

Application of high-strength ECC in the repair and reinforcement of deep vertical shaft lining

In this paper, river sand, fly ash, modified desulfurization gypsum, an expansion agent, and a water-reducing agent are incorporated into an engineered cementitious composite (ECC) to study the physical and mechanical properties and impermeability of the ECC. The mechanism of PVA fibers is also analyzed. Fiber grating sensing technology is used to monitor the shaft lining in real-time and assess its engineering application effectiveness. The results show that the optimal mix ratio of high-strength ECC is 20% silica fume, 4% desulfurization gypsum, 6% expansion agent, and 1.9% water-reducing agent. When the compressive strength of the ECC exceeds 60 MPa, the ultimate tensile strain reaches 2.84%, the ultimate bending strength reaches 14.06 MPa, and the impermeability grade reaches P8, indicating good flow performance. These properties meet the requirements of actual engineering for ECC strength and durability. The long-term monitoring results of the shaft lining concrete strain are significantly below the early warning value, indicating that shaft lining repair and reinforcement are effective. This study provides a research basis for the application of ECC in shaft lining repair engineering.

Crashworthiness of an improved cake-cutting multi-cell tube under three-point bending

Abstract Increasing the number of corners has shown great potential for improving the energy absorption of thin-walled pipes. In order to further improve the bending strength and energy absorption performance of the thin-walled tubes, an improved multi-cell thin-walled tube is proposed by adding three rib plates to a straight thin-walled tube structure. A three-point bending numerical model is established to clarify the bending mechanical properties of the proposed cake-cutting multi-cell tube. The results show that at the maximum number of cakes, the deformation is more stable and the specific energy absorption is 3.5 times higher than that of a traditional circular thin-walled pipe. When the loading angle is 60°, the specific absorption energy reaches the best, which is 1.1 times that when the loading angle is 30°. When the loading angle is 60°, the peak impact force is maximum when the distance between the rib position and the center of the circle is 12mm. At other loading angles, the maximum peak impact force is achieved at a distance of 8 mm. This work indicated the effectiveness of the cake-cutting method in improving the bending strength of the thin-walled tube, which deserves more attention in future work.

Compressive and Bending Properties of 3D-Printed Wood/PLA Composites with Re-Entrant Honeycomb Core

This study investigates the mechanical behavior of sandwich structures comprising a re-entrant honeycomb core structure created using wood/polylactic acid (PLA) filaments via fused deposition modeling (FDM) technology. The sandwich structures were manufactured with different face layer thicknesses (0 mm, 0.8 mm, and 1.6 mm) and various core topologies. Material characterizations included bending tests, compressive tests, and finite element analysis (FEA) to identify stress concentration areas. In-plane and out-of-plane re-entrant honeycomb core structure specimens were tested to examine the bending properties. In addition, flatwise and edgewise compressive tests were performed to investigate the structures' compressive properties. Furthermore, the modulus of elasticity for each specimen was determined using the finite element technique (FEM). The results reveal that increasing the thickness of the face layer significantly enhances the structure's resistance to bending forces. Furthermore, specimens with an in-plane orientation demonstrated better bending strength compared to those with an out-of-plane orientation due to increased material underloading. In flatwise compressive tests, specimens without a face layer exhibited the highest strength, attributed to their greater displacement. In contrast, edgewise compressive tests showed significant buckling behavior of the face sheet, the maximum stress increased proportionally with the thickness of the face layer, reaching its peak at a skin thickness of 1.6 mm. The findings are validated by ANSYS analysis, which closely mirrors the experimental results, providing insight into flexural modulus, modulus of elasticity, and stress concentration. These findings indicate that architected core structures could be efficiently utilized to improve bending/compressive characteristics and failure mechanisms, providing valuable insights into the mechanical response of sandwich structures for different industrial applications.

Tailoring structural and mechanical properties of Cf/SiC ceramic matrix composites with BN/SiAlC interphases

In this work, we studied the effects of protective boron nitride/silconaluminocarbide (BN/SiAlC) interphases on the structural and mechanical properties of fabricated stacked carbon fiber-reinforced SiC ceramic matrix composites (Cf/SiC CMCs) via the hot-press sintering route. The structural analyses were carried out by X-ray diffraction and scanning electron microscopy (SEM), while mechanical properties were elucidated by employing universal testing machine. The observed sharp diffraction peaks indicate excellent crystallization, and the formation of 4H-SiC polytype was attributed to the partial transition of β-SiC phase during high-temperature sintering. The composite with single BN interface layer revealed enhanced bending strength of up to 364 ± 39.46 MPa (↑40 %), while composite with double layered interface showed optimal strength of 436 ± 33.54 MPa, and toughness of 6.11 ± 0.74 MPa.m1/2, with increments of 67.7 % and 128.8 %, respectively, compared to the composite without interphase layer. In the composite with duplex interfacial layer (3BN/SiAlC), the microcracks generated during fracture propagated into the BN layer, deflected through both the sublayers and at the fiber-BN interface, resulting in fiber pull out using fracture energy, leading to the enhanced strength and toughness of the composite. The load-displacement curve revealed that the stacking Cf/SiC CMCs with weak interlayer binding owing to the BN/SiAlC coating treatment possesses significant toughness to the SiC ceramics.

The Impact of Basalt Mesh on the Strength of Plywood

Abstract The favorable characteristics of veneer boards—plywood—enable their wide application. There is also the possibility of enhancing plywood, such as by coating it with various films, applying coatings, reinforcing it with fibers from different materials, and using improved adhesive formulas. Basalt fibers, as a natural and environmentally friendly material, are used in various forms with quite good characteristics. Results from various tests conducted in recent years indicate an improvement in the mechanical properties of composite boards, including plywood reinforced with fibers like basalt fibers. These tests were focused on determining the position and contribution of basalt fibers in the board’s structure, as well as the application of certain environmentally friendly adhesives. For this study, samples of composite material based on wood, specifically plywood reinforced with a basalt mesh, were prepared. The basalt mesh was placed within the plywood structure in various combinations of position and amount. Subsequently, a three-point bending strength test was conducted to determine the impact of the basalt mesh on the strength of the plywood. The increase in strength opens up possibilities for expanded use, material savings, and a reduction in the overall weight of the structure, which is crucial in certain applications of such boards.