Strength Behavior Research Articles

High-resolution photogrammetry to measure physical aperture of two separated rock fracture surfaces

Photogrammetry, reconstructing three-dimensional (3D) models from overlapping two-dimensional (2D) photos, finds application in rock mechanics and rock engineering to extract geometrical details of reconstructed objects, for example rock fractures. Fracture properties are important for determining the mechanical stability, permeability, strength, and shear behavior of the rock mass. Photogrammetry can be used to reconstruct detailed 3D models of two separated rock fracture surfaces to characterize fracture roughness and physical aperture, which controls the fluid flow, hydromechanical and shear behavior of the rock mass. This research aimed to determine the optimal number of scale bars required to produce high-precision 3D models of a fracture surface. A workflow has been developed to define the physical aperture of a fracture using photogrammetry. Three blocks of Kuru granite (25 cm × 25 cm × 10 cm) with an artificially induced fracture, were investigated. For scaling 3D models, 321 markers were used as ground control points (GCPs) with predefined distances on each block. When the samples were well-matched in their original positions, the entire block was photographed. Coordinate data of the GCPs were extracted from the 3D model of the blocks. Each half was surveyed separately and georeferenced by GCPs and merged into the same coordinate system. Two fracture surfaces were extracted from the 3D models and the vertical distance between the two surfaces was digitally calculated as physical aperture. Accuracy assessment of the photogrammetric reconstruction showed a 20–30 μm digital control distance accuracy when compared to known distances defined between markers. To attain this accuracy, the study found that at least 200 scale bars were required. Furthermore, photogrammetry was employed to measure changes in aperture under normal stresses. The results obtained from this approach were found to be in good agreement with those obtained using linear variable displacement transducers (LVDTs), with differences ranging from 1 μm to 8 μm.

Taguchi optimization of hardness and scratch adhesion strength of multilayer Ti/TiN coatings on Ti- 51 at%Ni alloy deposited via magnetron sputtering technique

The near equiatomic Ti-51at %Ni alloy has excellent corrosion resistance, strength, shape memory and pseudo-elastic behaviour. However, it is lacking biocompatibility due to the release of hazardous Ni-ions when used as an implant. Thus, this research proposes optimizing the fabrication of multilayer Ti/TiN coating on Ti-51at %Ni alloy using magnetron sputtering. The hardness and adhesion strength are crucial properties to sustain external bearing loads and to ensure the durability of the coating. The process parameters of magnetron sputtering were optimized using Taguchi method. The analysis showed that optimum adhesion strength was obtained at 370 W, 100 °C, 50 V and 5 sccm with respect to DC power, substrate temperature, bias voltage and nitrogen flow, respectively. Whereas, the optimum hardness was obtained at 370 W, 150 °C, 75 V and 5 sccm. The confirmation test evidenced the hardness and adhesion strength improvement by 6.83 % and 10.74 %, respectively. The results of the optimized substrate surface showed a dense and compact growth of the deposited layer with the absence of cracks and pores. Finally, this research demonstrated a promising durable multilayer Ti/TiN coating on Ti-51at %Ni for biomedical applications.

Integrating perceived physical environments and the theory of planned behaviors when explaining adherence to 24-hour movement guidelines in Chinese adolescents.

Most adolescents worldwide do not meet 24-h movement guidelines, which recommend specific level of physical activity, sedentary behavior, and sleep for optimal health. Nevertheless, there remains a lack of understanding regarding how social cognitive and physical environmental factors influence adolescents' compliance with these guidelines. This prospective study aimed to examine the associations between perceived physical environments, constructs of the theory of planned behavior (TPB), habit strength, and adherence to 24-h movement guidelines in Chinese adolescents over a three-month period. A total of 629 Chinese adolescents (Mage = 14.59 years, SD = 0.64) completed a set of questionnaires comprising perceived physical environmental characteristics, constructs of the TPB, habit strength, and 24-h movement behaviors at baseline and 3 months later. Data analysis was conducted using variance-based structural equation modeling. Attitude, subjective norm, and perceived behavioral control had a direct effect on intention and intention had a direct effect on number of the guidelines being met. Habit strength was a significant predictor of adherence to the guidelines, although its moderating effect on the intention-behavior relationship was not significant. Perceived neighborhood facility accessibility, school facility availability, and home physical activity equipment had significant indirect effects on intention through attitude, subjective norm, and perceived behavioral control. However, constructs of the TPB did not serve as mediators in the relationship between perceived physical environments and the number of guidelines being met. This study offers preliminary evidence supporting the integration of perceived physical environments and the TPB in predicting adolescents' adherence to 24-h movement guidelines. Future research should consider using experimental study designs with rigorous measures of 24-h movement behaviors to establish causal relationships.

Shear Strength Behavior of Soft Clay Reinforced with Ordinary and Geotextile-Encased Granular Columns

Shear Strength Behavior of Soft Clay Reinforced with Ordinary and Geotextile-Encased Granular Columns

Effect of loading rate on mechanical properties of autoclaved aerated concrete having steel wool fibres, construction waste and alkaline solution by employing accelerated curing

This paper introduces a new method for developing Autoclaved Aerated Concrete (AAC) blocks, investigating the impact of different loading rates on compressive strength and failure behaviour. Alkaline solution and accelerated curing tank curing were explored as alternatives to conventional methods using aluminium powder and autoclave curing with fly ash. Construction and demolition waste was used as a substitute for fly ash, and chopped steel wool fibres were added to enhance block strength. The blocks were tested under various loading rates, and stress–strain graphs were generated to calculate Young’s modulus of elasticity values. ANSYS software was used for simulation and comparison, validating the accuracy of analytical models. The study shows a correlation between experimental and simulated values, confirming the successful incorporation of CDW and CSWF in AAC block development. Increasing the loading rate during testing leads to lower measured Young’s modulus, indicating strain rate dependency. However, including CSWF enhances Young’s modulus by redistributing stress and restraining crack propagation. The research contributes to understanding AAC's mechanical properties and performance, supporting its potential as a sustainable alternative for masonry materials in structural applications.

Creep behaviour of day‐old chicken corrugated paperboard packaging under different uniaxial compression loads—An experimental study

AbstractOne of the most important elements for animal transportation is the packaging that ensures the safety and health of the transit. During the transport of live small animals, such as day‐old chickens, the animals may only stay in the boxes for a very limited period, in this case, 48 h. Therefore, it is important to be able to model the strength behaviour of these boxes concerning packaging material requirements and sustainability. The aim of this study was to determine the short‐ and relatively long‐term strength of day‐old chicken packages to better estimate packaging design and to use these data to establish an analytical creep model with suitable parameters that adequately approximate the measured data. Two types of packages were tested, and two types of creep models were used to model the creep strain‐time graphs. The creep behaviour of the two samples was tested at four different uniaxial load cases, with consistent environmental conditions during the tests (23°C and 50% relative humidity [RH]). At the two highest loads, both samples failed before the 48‐h cycle, indicating a significant difference in box strength between short‐term and long‐term load tests. The secondary creep strain rate increases with the magnitude of the compressive load. When comparing the two creep models for both box types, the Power law provided the best accuracy at the 50% of box compression test (BCT) load case, while at the other three load cases, the Andrade law showed better predictions.

Role of pH and Crosslinking Ions on Cell Viability and Metabolic Activity in Alginate-Gelatin 3D Prints.

Alginate-gelatin hydrogels are extensively used in bioengineering. However, despite different formulations being used to grow different cell types in vitro, their pH and its effect, together with the crosslinking ions of these formulations, are still infrequently assessed. In this work, we study how these elements can affect hydrogel stability and printability and influence cell viability and metabolism on the resulting 3D prints. Our results show that both the buffer pH and crosslinking ion (Ca2+ or Ba2+) influence the swelling and degradation rates of prints. Moreover, buffer pH influenced the printability of hydrogel in the air but did not when printed directly in a fluid-phase CaCl2 or BaCl2 crosslinking bath. In addition, both U2OS and NIH/3T3 cells showed greater cell metabolic activity on one-layer prints crosslinked with Ca2+. In addition, Ba2+ increased the cell death of NIH/3T3 cells while having no effect on U2OS cell viability. The pH of the buffer also had an important impact on the cell behavior. U2OS cells showed a 2.25-fold cell metabolism increase on one-layer prints prepared at pH 8.0 in comparison to those prepared at pH 5.5, whereas NIH/3T3 cells showed greater metabolism on one-layer prints with pH 7.0. Finally, we observed a difference in the cell arrangement of U2OS cells growing on prints prepared from hydrogels with an acidic buffer in comparison to cells growing on those prepared using a neutral or basic buffer. These results show that both pH and the crosslinking ion influence hydrogel strength and cell behavior.

Rational design of a novel mullite aerogel with extremely high mechanical strength and anti-oxidation behavior for advanced thermal protection in extreme environments

Aerogels, with ultra-low density and thermal conductivity, are key materials for the development of high-efficient thermal insulations. Yet, their low compressive strength, oxidation behavior, and poor thermal stability limit their further development. Herein, we have prepared a novel monolithic mullite aerogel using the RF/Al2O3-SiO2 aerogel organic/inorganic hybrid as the precursor, followed by the CO2 supercritical drying, and high-temperature mullitization. The resulting mullite aerogel displays typical “pearl-necklace” three-dimensional network, with the average pore size at around 10–20 nm, showing a large BET specific surface of 481 m2/g. The compressive strength of the mullite aerogel is as high as 15.5 MPa, much larger than those of the reported ceramic aerogels. The mullite aerogel exhibits excellent thermal insulation property, and the mass loss is only 2.5% after the butane torch evaluation with 1300 °C for 10 min under air, showing its rather excellent anti-oxidation performance, and the anti-oxidation mechanism is also proposed.

Suitability of Fly Ash-Cement Kiln Dust Columns for Stabilizing Expansive (Black Cotton) Soils

The paper focuses on the potential use of industrial wastes, which are fly ash (FA) and cement kiln dust (CKD), to stabilise expansive soils like black cotton (BC) soil for construction purposes. Although many soil stabilisation methods exist, the placement of columns consisting of industrial wastes has yet to be tested. Knowing the pozzolanic action and mechanism between the waste product and the soil, this method of placing the industrial waste as a remedy should be trialled. Therefore, this paper proposes and investigates the placement of FA-CKD columns into the soil via a series of laboratory experiments using myriad mixtures and combinations of placement of such columns. The effect of moulding water content and curing time on the BC soil’s consolidation and strength behaviour was also assessed here. Through the experiments, it is found that the optimum mixture of FA-CKD for the columns is at 90%-10%, respectively. This column mixture has been evidenced to improve the unconfined compressive strength of the soil significantly, where its performance improves with curing time. The highest strength improvement can be found at optimum moisture content, followed by wet of optimum and dry of optimum, respectively. By placing the columns in the soil with 4.5D spacing, better consolidation behaviour with a reduced swelling potential of BC soil can be found. Based on the above findings, using FA-CKD columns can improve the BC soil’s engineering behaviour, contributing to waste-to-wealth and sustainable soil stabilisation approaches.

Automatic processes moderate the association between reflective processes and movement behavior: A cross-sectional study

Dual-process theories postulate that both reflective and automatic processes regulate health behavior. Further research is required to test the basic postulates of dual-process theories. We investigated the direct associations and moderating effect between automatic processes and multiple indicators of reflective processes on various levels of physical activity and sedentary behavior assessed using accelerometry in adults who were not participating in regular physical exercise programs. This cross-sectional study included 257 adults. Each participant completed a computerized test for automatic associations, a set of questions assessing reflective processes, a seven-day assessment using accelerometers to determine their levels of physical activity and sedentary behavior. The results showed a direct relationship between perceived benefits (B = 15.90, p = 0.043), perceived cons (B = −12.81, p = 0.034), decisional intention (B = −0.07, p = 0.049) with light physical activity, and self-efficacy with daily steps (B = 485.71, p = 0.008). There was a positive association between intention strength and daily steps when implicit associations favored physical activity (b = 623.36, LLCI = 79.09, ULCI = 1167.62, p = 0.025); a negative association between self-efficacy and sedentary behavior when implicit associations favored sedentary behavior (b = −25.73, LLCI = −49.77, ULCI = −1.70, p = 0.035); and a positive association between intention strength and sedentary behavior when implicit associations favored physical activity (b = 34.18, LLCI = 8.81, ULCI = 59.56, p = 0.008). These findings underscore the importance of considering the interplay between reflective and automatic processes in shaping movement behavior.

Analytic Investigation of Hooked Stirrups on Seismic Behavior of Reinforced Concrete 3D Frame Buildings

Ensuring the safety and stability of buildings during earthquakes is of utmost importance. This can be achieved by assessing the seismic performance of reinforced concrete structures with consideration of design details. This study focused on the seismic behavior of reinforced concrete buildings by comparing the effects of two different types of stirrups, namely those with a 135° angled end-hook shape and straight hooks, with variation of concrete strength. Pushover analysis of a sample building was performed to determine the effect of hook shape on stirrup reinforcement with a constant volumetric ratio for various concrete strength classes. The results of the analysis indicated significant differences in concrete strength and seismic behavior between the two stirrup configurations. The hooked stirrups demonstrated superior energy dissipation capability and ductility, which led to better seismic performance compared to unhooked stirrups across varying levels of concrete strength. To extend the investigation, the study compared the Mander et al., Kent–Scott–Park, and Kappos–Konstantinidis concrete models with different concrete classes (C50-C25-C20-C16-C10). The findings emphasized the importance of stirrup configuration in the design of earthquake-resistant structures. The study concluded that RC structural performance with the 135-degree hooked concrete members exhibited much better behavior of the 90-degree members for the various concrete strength. In this way, it has been revealed the arrangement and detailing of reinforcement in the construction beams and columns improves the governing effect on seismic structural performance.

Analyzing the macroscopic/mesoscopic mechanical properties and fatigue damage of graphene oxide/microcapsule self-healing concrete

Concrete materials used in transmission projects in Northwest China require specific properties, such as crack resistance, fatigue resistance, and low impedance. To meet these requirements, microcapsules with repair properties were synthesized using a physical method. Graphene oxide was employed as a conductive medium and reinforcing material to prepare standard concrete composite parts. Furthermore, the stress state and cracking behavior of the microcapsules in concrete were simulated through the Python-based secondary development of ABAQUS. An orthogonal test design was conducted to determine the optimal graphene oxide, microcapsule, and water–cement ratios. Based on the orthogonal test results, fatigue testing was conducted to assess the fatigue strength, fatigue life, and crack development behavior of the concrete under combined dynamic and static loading. The results show that the thickness of the microcapsule wall material directly influences the fracture extension and practicability of the concrete. Including a certain amount of graphene oxide can enhance the strength of the concrete, reduce its resistivity, and compensate for the microcapsule-induced early strength loss. The optimal graphene oxide/microencapsulated concrete ratios were determined as 3 % microcapsule admixture, 0.1 % graphene oxide admixture, and 0.45 water–cement ratio. Notably, at low stress levels, graphene oxide and microcapsules act synergistically to enhance concrete fatigue resistance. Graphene oxide/microencapsulated concrete exhibits higher residual fatigue strength than ordinary concrete; however, the difference in their fatigue resistance diminishes as the number of cycles increases.

Assessment of strength development of soil stabilized with cement and nano SiO2

In consideration of the significant negative impact of ordinary Portland cement (OPC) on the environment, the use of nanomaterials as an additive to mitigate the amount of cement and enhance the physical and mechanical properties of cemented soil has been introduced. However, the existing empirical formulae to evaluate the strength of cemented soil with nano SiO2 additive are limited. This study aims to investigate the strength behavior of cemented soil with OPC and nano SiO2 additive through a series of unconfined compressive tests. The cemented soils with varying cement content (3 %, 5 %, 10 %, and 15 %) and water content (1LL, 1.2LL, and 1.5LL) were mixed with 0 %, 2 %, 4 %, 6 %, and 8 % nano SiO2. The unconfined compressive strength (UCS) of the cemented soils with nano SiO2 was measured at 7, 14, 28, and 56 days. Empirical models were developed to estimate the UCS of cemented soil with nano SiO2 additive. The results indicate that the incorporation of nano SiO2 can effectively improve the strength of cemented soil. The UCS decreases rapidly with an increase in the ratio of water to content (wc/c) values when the wc/c value is less than 7, while the trend of decreasing UCS stabilizes when it exceeds 7. The developed empirical models based on Gallavresi’s formula can predict the UCS of cemented soil with nano SiO2 at different curing ages from the early strength on Day 7. The average MAPE value at different curing ages is 7.37 % by comparing the experimental value with the calculated value from the empirical model, demonstrating that the developed model has good predictive ability.

Rheological insights on Carboxymethyl cellulose hydrogels

Hydrogels are copiously studied for tissue engineering, drug delivery, and bone regeneration owing to their water content, mechanical strength, and elastic behaviour. The preparation of stable and mechanically strengthened hydrogels without using toxic crosslinkers and expensive approaches is immensely challenging. In this study, we prepared Carboxymethyl cellulose based hydrogels with different polymer concentration via a less expensive physical crosslinking approach without using any toxic crosslinkers and evaluated their mechanical strength. In this hydrogel system, the carbopol concentration was fixed at 1 wt/v% and the Carboxymethyl cellulose concentration was varied between 1 and 5 wt/v%. In this hydrogel system, Carbopol serves as the crosslinker to bridge Carboxymethyl cellulose polymer through hydrogen bonds. Rheological analysis was employed in assessing the mechanical properties of the prepared hydrogel, in particular, the viscoelastic behaviour of the hydrogels. The viscoelastic nature and mechanical strength of the hydrogels increased with an increase in the Carboxymethyl cellulose polymer concentration. Further, our results suggested that gels with Carboxymethyl cellulose concentration between 3 wt/v % and 4 wt/v % with yield stresses of 58.83 Pa and 81.47 Pa, respectively, are potential candidates for use in transdermal drug delivery. The prepared hydrogels possessed high thermal stability and retained their gel network structure even at 50 °C. These findings are beneficial for biomedical applications in transdermal drug delivery and tissue engineering owing to the biocompatibility, stability, and mechanical strength of the prepared hydrogels.

Combining ultrasonic testing, infrared thermography, and stereoscopy to unveil characteristics of the adhesion capacity of metakaolin plastering mortars

In the present work, characteristics of the adhesion capacity of metakaolin plastering mortars are unveiled by combining ultrasonic testing, and infrared thermography (IRT), associated with stereoscopy. The investigation was carried out for plastering mortars with metakaolin incorporated by adding and partially replacing the Portland cement, in which incorporations of 5%, 10%, and 15% were employed. Scanning Electron Microscope (SEM), and Energy Dispersive Spectroscopy (EDS) were employed to investigate the morphological characteristics of the metakaolin mortars' surface. In addition, flexural strength tests were also performed to evaluate mechanical behavior. The SEM, and SEM/EDS results revealed aspects of the incorporation of metakaolin in the plastering mortars and revealed the formation of Portlandite, Ettringite, and the CSH phases. Considering the flexural strength behavior, only the plastering mortar with 10% incorporated metakaolin has a better mechanical performance than the reference mortar. Further, the propagation velocity of incident ultrasonic waves was useful in calculating Young's modulus, which is associated with the adhesion capacity of the plastering mortars, due to its mechanical response to the test. Furthermore, the IRT results revealed a significant water absorption by the substrate when a layer of roughcast was applied before the metakaolin plastering mortar. When the plastering mortars are directly applied to the concrete substrate, a smaller ability to transfer water to the solid surface is verified. These adhesion behaviors are associated with the capacity of the system to transfer water to the substrate. Finally, stereoscopy results showed heterogeneity in the interface area between the mortar directly applied to the concrete surface and homogeneity in the interface between the mortar and roughcast/concrete surface, corroborating previous results. In conclusion, the ability of metakaolin plastering mortars to transfer water molecules to solid substrates can be unveiled by combining ultrasonic testing, IRT, and stereoscopy, and this is particularly useful in explaining it’s adhesion property, as shown throughout the work.

Hybrid surface implants: Influence of residual stress on mechanical behavior, evaluated by finite element analysis and validation by fatigue tests

ObjectivesTo determine the influence of different surface roughness and residual stress of hybrid surface implants on their behavior and mechanical failure. MethodsThree types of implants with different surface roughness were used as specimens: smooth, rough, and hybrid. A diffractometer was used to determine the residual stress of the implants according to their different surface treatment. These results were used as an independent variable in a finite element analysis that compared the three specimens to determine the von Mises stress transferred to the implants and supporting bone and the resulting microdeformations. Flexural strength and fatigue behavior tests were performed to compare the results of the three types of implants. ResultsHigher residual stress values were found for rough surfaces (p < 0.05, Student’s t-test) compared to smooth surfaces, and both types of stress were different for the two types of hybrid implant surfaces. Finite element analysis found different von Mises stress and microdeformation results, both at the level of the implant and the bone, for the three types of implants under study. These results were correlated with the different flexural strength behaviors (lower resistance for hybrids and higher for rough surfaces, p < 0.05) and fatigue behavior (the rough implant had the longest fatigue life, while the hybrid implant exhibited the worst fatigue behavior). SignificanceThe results show a trend toward a less favorable mechanical behavior of the hybrid implants related to the retention of different residual stresses caused by the surface treatment.

Mechanical characterisation of cementitiously stabilised moorum for use as structural layers in paving road construction

Due to the depletion of supplies for high-quality aggregates, it has become necessary to incorporate marginally soft materials like moorum in pavement structural layers. This study aimed to investigate the mechanical characteristics of cementitiously stabilised moorum materials (CSMM), which would be relevant during the mechanistic design of pavements. The tests includes the unconfined compressive strength, california bearing ratio in a soaked state, flexural strength, indirect tensile strength, durability and shrinkage behaviour through a comprehensive laboratory investigation procedure. In this investigation, the collected moorum sample was from Bihar, the eastern state of India. Relationships between various mechanical characteristics have been developed for pavement analyses. The properties are achieved as per standards to study the behaviour of the pavement structures. Based on the research findings, the effectiveness of the strength and shrinkage characteristics in determining the acceptability of CSMM as a road base and subbase applications have been discussed.

Mechanical Behaviors and Failure Analysis of S38C Steel with Gradient Structure Fabricated by Induction Heating and Quenching

This article proposes a simple and fast method of induction heating and quenching to produce surface gradient structure for S38C steel, and its mechanical behavior and strengthening mechanism are revealed. The variation of the gradient structure from surface to interior is characterized by electron backscatter diffraction, and the tensile behavior of the gradient structure at different depths is acknowledged by the small‐scale tensile tests. The gradient structure is tempered martensite microstructure, which significantly improves the hardness and tensile strength of surface and subsurface regions. Accordingly, with the strengthening of the gradient structure, the general tensile strength and fatigue behavior of the S38C steel are increased close to those of high‐strength steel. Moreover, the fatigue crack initiation mechanism of the gradient structure is studied by energy dispersive spectroscopy, transmission Kikuchi diffraction, and transmission electron microscope characterization on the crack initiation regions. It reveals that the fatigue failure of the gradient structure can be due to stress concentration on the surface and around subsurface inclusions, and the crack initiation modes present surface crack initiation and internal crack initiation, respectively.

Potential of carboxymethyl cellulose solution to increase the shale stability

Slope failures in Bangladesh's Chittagong division are a growing concern, with fatalities increasing from 19 in 2000 to 162 in 2017 and projected to rise further. This study aims to identify the most vulnerable rock formation and assess Carboxymethyl Cellulose (CMC) as a solution for enhancing shale strength and mitigating slope failures. The research began by evaluating weathering susceptibility and stability of different rock layers, revealing the high instability of shale in the Bhuban Formation. Slake durability tests measured cation concentration to understand shale instability mechanisms. Laboratory experiments, including immersion tests and grained-and-molded shale specimens, examined CMC's potential to improve shale stability. Results indicated that the shale of the Bhuban Formation had the highest hammer value variations, indicating increased weathering susceptibility. Shale instability was attributed to illite layer dissolution, releasing K+. Intact shale specimens treated with CMC showed enhanced penetration resistance, shear strength, and deformation behavior, suggesting CMC's potential in increasing shale stability. Grained-and-molded shale specimens treated with CMC demonstrated increased shear strength, critical shear displacement, and contraction deformational behavior. Optical microscopy and scanning electron microscopy revealed the formation of cross-links between shale grains, contributing to improved shale stability. Further research is needed to explore the application of CMC for enhancing in situ rock slope stability. This study emphasizes the importance of addressing slope failures in the Chittagong division and provides insights into mitigating the risks through CMC-based interventions.

Strength, durability, and impact behavior of recycled aggregate concrete with polypropylene aggregate

Massive consumption and production of plastic is expected to have a significant environmental impact in the near future. Plastic waste from landfills can be refined and recycled as aggregates in concrete through subsequent processing. Several studies have already been conducted using plastic scraps as aggregate in concrete. However, more research is needed before it can be incorporated into structural concrete. Therefore, this study aims to investigate the static and dynamic behavior of concrete made with polypropylene plastic aggregate (PPA) obtained from waste plastic materials. Natural coarse aggregate (NCA) and recycled concrete aggregate (RCA) are partially replaced with PPA in this study and drop impact tests are performed after the samples are exposed to room and elevated temperatures (200 °C and 400 °C). PPA replacement percentages are 0, 5, 10, and 15 %. The drop impact test is performed on both cylinders (150 mm × 63.5 mm) and beams (100 × 100 × 500 mm) specimens. Different mechanical and durability tests are also investigated. The impact energy decreases by up to 68 percent as the PPA percentage increases at room temperature. Furthermore, when the specimens are heated to 200 °C or 400 °C, the impact blows are significantly reduced (6–13 no). After being heated to 200 °C and 400 °C, the 15 percent NCA replaced cylinder loses 87 percent and 91 percent of its impact energy, respectively. In terms of mass loss, the control cylinder has a higher loss than the PPA cylinders, indicating that the presence of PPA in concrete causes less damage. In terms of mechanical properties, the 5 percent PPA-based concrete outperforms the control. Depending on the concrete age and coarse aggregate types, a 5 % PPA content increases compressive strength by up to 11.6 percent. In terms of durability, the water absorption tendency increases with increasing PPA content, and all-natural PP concrete (NPC) and recycled PP concrete (RPC) exhibit moderate to very low chloride ion penetrability. Overall, it is proposed that 5 % PPA be used with NCA and RCA for structural applications.