Jul 2026· ABUAD Journal of Engineering Research and Development (AJERD)· Vol 9, pp. 154-162· 0 citations· 23 references
Abstract
Pervious concrete is an environmentally sustainable construction material with significant potential for mitigating stormwater runoff, enhancing groundwater recharge, and reducing urban heat island effects. This study investigates the influence of aggregate size and blend on the fresh and hardened properties, infiltration rate, and compressive strength of pervious concrete providing guidance for optimal mix design balancing strength and permeability. Six mixtures were produced using single aggregate sizes (9.5 mm, 13.2 mm, and 19 mm) and 50:50 blended combinations (9.5 + 13.2 mm, 9.5 + 19 mm, and 13.2 + 19 mm). Key properties evaluated include fresh and hardened density, void content, infiltration rate, and compressive strength at 7 and 28 days. The effect of 5% colour pigment on the compressive strength of the 9.5 mm aggregate mix was examined. Empirical relationships were developed between density and void content, hardened density and compressive strength, and hardened void content and infiltration rate at 7 days, supported by graphical analysis. Results indicate that infiltration capacity and porosity are strongly influenced using single versus blended aggregate sizes. Density was found to be an effective predictor of compressive strength and void content, while void content reliably predicted infiltration rate. Hardened density ranged from 1845.14 to 2071.99 kg/m³, with void contents between 20.14% and 33.03%. Infiltration rates varied from 0.45 to 1.00 cm/s. The highest compressive strengths were 8.52 and 11.1 MPa for 7 and 28 days respectively using the 9.5 + 13.2 mm aggregate blend. Colour pigment reduced compressive strength by 18% at both curing ages.
Pervious concrete is an environmentally friendly paving concrete that has attracted significant attention due to its environmental advantages, particularly in mitigating the influences of urban heat and improving stormwater runoff. This study aims to investigate the influence of three types of lightweight coarse aggregates on the physical properties of pervious concrete mixtures. These types are pumice and two types of lightweight expanded clay aggregates (LECA): low density (LD) and high density (HD). Previous concrete mixtures were modified by styrene butadiene rubber (SBR) at 5% by cement mass and prepared. The physical properties of this type of concrete, including porosity, permeability, and hardened density, were investigated. The results indicated that replacing the normal coarse aggregate with a volumetric ratio of 10% lightweight coarse aggregates resulted in a significant increase in permeability and porosity while at the same time reducing density. The highest value of permeability was achieved by the mix containing 10% of LD without SBR, with an increment of 35.9%, compared to the control mix. The porosity was increased by 28.6% in the mix containing 10% of PA without SBR, compared to the control mix. On the other hand. Regardless of the type of lightweight coarse aggregate used, the addition of SBR to the lightweight aggregate mixtures significantly decreases the porosity and permeability while increasing density. Based on the findings of this study, it can be concluded that the type of aggregate chosen has a significant effect on the physical properties of pervious concrete
Huda H. Gghail, Mosah S. Abdulsada, T. M. Borhan· Al-Qadisiyah Journal for Eng...· 0 citations
To promote construction waste recycling and develop sustainable pavement materials, this study utilized recycled aggregates (crushing value 7.8%) obtained from bridge demolition as a 100% replacement for natural aggregates in recycled pervious concrete. The research focused on investigating the influence of different aggregate gradations (single-sized 4.75–9.5 mm and binary-graded combinations: 4.75–9.5 + 16–31.5 mm, 2–5 + 13–26.5 mm) and different water-to-cement ratios (0.26, 0.27, 0.30) on the concrete properties. Tests on compressive strength, splitting tensile strength, and connected porosity revealed the following results: The strength of recycled pervious concrete was comparable to that of natural aggregate concrete, and strength decreased with increasing aggregate size. The optimal water-to-cement ratio varied with gradation: 0.27 for the single-sized 4.75–9.5 mm aggregate and 0.30 for the binary-graded combinations. Splitting tensile strength was generally low, showed insignificant growth from 7 d to 28 d, was sensitive to interfacial defects, and exhibited high data variability. Connected porosity was inversely proportional to compressive strength and decreased with increasing water-to-cement ratio. This study provides experimental evidence for optimizing the preparation of high-performance recycled pervious concrete using recycled aggregates. In addition, the influence of fiber type, dosage, and length was preliminarily examined through an orthogonal design.
Jiangcong Lv, Fengjia Zhan, H. Chi et al.· Buildings· 0 citations
The selection of coarse aggregate size is a critical factor influencing the fresh and hardened properties of concrete. This study investigated the effect of coarse aggregate size on the workability and compressive strength of concrete produced using granite aggregates obtained from Ishiagu, Ebonyi State, Nigeria, examined the compressive strength development of the concrete, and evaluated the influence of aggregate size on compressive strength using a constant mix ratio of 1:2:4. Experimental procedures involved slump tests and compressive strength tests conducted at 7, 14, and 28 days. Conversely, compressive strength decreased with increasing aggregate size. The 12.5 mm aggregate produced the highest compressive strengths of 18.3 MPa, 22.6 MPa, and 26.4 MPa at 7, 14, and 28 days, respectively, while the 20 mm aggregate produced the lowest strengths. The study concluded that 12.5 mm granite aggregate provides optimum performance for structural concrete produced with Ishiagu aggregates. The findings contribut
Unknown authors· International Journal of Env...· 0 citations
The utilization of pervious concrete in roads without heavy traffic loads projects has gained relevance in recent years due to its favorable environmental impacts. This study reviews recent developments and trends in pervious concrete, focusing on its mechanical and hydrological properties. It also addresses component selection, mix design strategies, and the quality assurance and evaluation processes necessary for the effective performance of pervious concrete pavements. The literature review reveals that pervious concrete consists of interconnected voids and pores, exhibiting a porosity between 15% and 35%, and a compressive strength ranging from 2.8 MPa to 28 MPa. Research indicates that the highest performance is achieved with water-to-cement ratios between 0.26 and 0.45 and aggregate sizes ranging from 19 mm to 9.5 mm. Moreover, it has been determined that adding 5–10% of fine aggregate by total aggregate volume improves the concrete's strength and durability. Despite its environmental benefits, it still presents certain limitations that must be addressed. One key solution lies in developing an optimized mix design method, which could enhance the performance of pervious concrete pavement. Such advancement would support its role as a sustainable, dual-function pavement system and expand its applicability for low and medium- volume traffic networks.
Elnour Ahmed Abdallah Hamed, Tuba Özge Nakipoğlu, Atila Demiröz· Konya Journal of Engineering...· 0 citations
This study evaluated the influence of coarse aggregate type on the compressive strength of concrete, with particular emphasis on granite and locally sourced gravel. Concrete performance is largely governed by the properties of its constituent materials, among which coarse aggregates play a dominant role because of their contribution to strength, durability, and structural integrity. The investigation aimed to determine the suitability and performance differences between granite and gravel when used in conventional concrete production. A controlled laboratory experiment was conducted using two standard mix ratios of 1:2:4 and 1:3:6, prepared using the absolute weight-batching method. Preliminary material characterisation tests were carried out, including sieve analysis for aggregate grading, cement consistency and setting-time tests, and slump tests to evaluate workability. A total of forty (40) concrete cubes measuring 150 mm × 150 mm × 150 mm were cast, comprising both test and control specimens. The specimens were cured under standard water-curing conditions and tested for compressive strength at curing ages of 7, 14, and 28 days. The results showed a progressive increase in compressive strength with curing age for all concrete mixes. Concrete produced with granite consistently exhibited higher compressive strength than concrete produced with gravel across all curing periods and mix ratios. At 28 days, the maximum compressive strength recorded for granite concrete at a mix ratio of 1:2:4 was 27.3 MPa, while gravel concrete achieved 24.2 MPa under the same conditions. Similarly, for the 1:3:6 mix, granite achieved 23.9 MPa, compared with 20.0 MPa for gravel. The findings indicated that aggregate type significantly influences concrete strength, with granite providing better interlocking properties and reduced void content due to its angular shape and surface texture. However, gravel demonstrated acceptable strength performance and may be considered a viable alternative in situations where granite is unavailable or cost-prohibitive. The study concluded that, while both aggregates are suitable for concrete production, granite remains the preferred choice for structural applications requiring higher strength. The results provide practical insights for engineers and construction professionals in material selection and mix-design optimisation, contributing to improved construction efficiency and cost management.
M. O. Ganiyu, Udeh Israel Eyu· Journal of Engineering Resea...· 0 citations
With the increased demand for concrete in modern infrastructure, coupled with the depletion of natural aggregates and the rising volume of construction and demolition waste, there has been a growing need for sustainable construction materials. This study evaluates the mechanical performance, durability, environmental impacts, and economic feasibility of concrete incorporating recycled concrete aggregates (RCA) as a partial or total replacement for natural coarse aggregates. Five concrete mixtures were prepared with RCA replacement levels of 0%, 25%, 50%, 75%, and 100%, aiming for a compressive strength of 30 MPa. Experimental investigations were conducted on compressive and flexural strength, workability, water absorption, and rapid chloride permeability, while environmental and economic performance were assessed through life cycle assessment and cost analysis. Results showed that concrete with 50% RCA achieved compressive strengths of 29.3 MPa and 4.1 MPa and flexural strength of 4.1 MPa at 28 days, which can be considered acceptable structural performance. Workability decreased with increasing RCA content due to increased porosity and water absorption, but improved significantly with the addition of a superplasticizer and aggregate pre-treatment, increasing the slump from 83mm to 120mm. Full RCA replacement resulted in a reduction of CO2 emissions by 32%, embodied energy by 33%, and concrete production cost by USD 12.3/m3. Overall, RCA shows a good potential for sustainable and circular infrastructure development.
A. Sil, Archanaa Dongre, A. Madhukar et al.· Future Technology· 0 citations
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