Concrete Quality Research Articles

The structural analysis of school buildings in West Pasaman as tsunami shelters

The shelter buildings of SDN 02 Sasak Ranah Pasisie and MTS Darul Hikmah Sikilang at West Pasaman were built in year 2010-2011, but until year 2021, the construction were not completed yet. To continue the construction of these shelters, the structural analysis is first carried out to know the existing condition of the buildings. The structural analysis is carried out in order to find out whether the shelter buildings is still feasible to resist the working loads. The calculation of the working loads using the new SNI 1726-2019, including tsunami loads. Data of concrete quality is taken using a hammer test and the reinforcing steel by conducting a tensile test from the reinforcement sample taken in the field. To find out the capacity of foundation, the DCP (Dutch Cone Penetrometer) testing is carried out to obtain the qc (conus) value and the depth of hard soil. Structural analysis using a computer program with a 3D building model. From structural analysis is found that all dimensions of element as well as reinforcement of flexure and shear of structural element such as columns and beams including foundation are able to resist the working loads in accordance with the new SNI 1726-2019.

The influence of cement substitution with rice husk ash on high-strength concrete

High-strength concrete is a crucial construction material in modern infrastructure development. It involves replacing some conventional raw materials with environmentally friendly alternatives to enhance concrete quality. Rice husk ash (RHA) is an agricultural waste that contains natural pozzolanic materials capable of improving the mechanical properties and strength of concrete. The use of rice husk ash (RHA) in high-strength concrete mixtures has the potential to reduce cement consumption and enhance crack resistance. The aim of this study is to investigate the impact of substituting cement with rice husk ash (RHA) and adding superplasticizer on the compressive strength of concrete. The targeted concrete strength is 45 MPa with variations of rice husk ash substitution at 5%, 10%, and 15% by weight of cement. This research obtained the compressive strength of concrete at 7 days with variations of 5% at 30.59 MPa, 10% at 25.20 MPa, and 15% at 20.77 MPa. Subsequently, at 14 days, the compressive strength increased with variations of 5% at 37.48 MPa, 10% at 27.56 MPa, and 15% at 22.23 MPa. The compressive strength continued to rise at 28 days, with variations of 5% at 44.26 MPa, 10% at 29.36 MPa, and 15% at 29.19 MPa.

Implications of the compressive strength control accuracy on the probability of accepting defective concrete elements

The contribution of control method inaccuracy to the accuracy and performance of building structures while adhering to the metrological requirements for the strength determination process in reference materials is analysed. The metrological fundamentals for improving the testing and quality control methods of modern concretes and their impact on the reliability of erected structures are developed. The measurement accuracy dependence on the quality control of concrete materials and products by destructive methods is established, the number of rejected products is determined. The accuracy of concrete quality control is assessed in relation to the likelihood of defective products. A Bayesian model is proposed for the probability of missing a defective product with known control confidence and the probability of error due to measurement and testing error in the control process. The additional probability of missing concrete defects in strength when testing in standard specimens by the destructive method due to imperfect test methods is calculated. The 'non-zero probability' of missing a defect in the concrete strength control process affecting the level of reliability is assessed, provided the metrological requirements for the test are met.

Characteristic of Polymeric Lightweight Aggregate with Coal Fly Ash and Epoxy Resin for Manufacturing the Lightweight Concrete

Concrete is an essential element and is widely used in various industrial construction works. However, concrete is weak in its specific gravity range of 2200 – 2500 kg/m³. Using lightweight aggregates is one way to reduce the weight of concrete. In Indonesia, the availability of coal fly-ash (CFA) is easy to obtain and abundant, while the utilization rate is still low. To overcome this problem, CFA mixed with epoxy resin (ER) is used as a binder to manufacture polymer lightweight aggregates (PLA). The manufacturing process uses a simple mixing method using three different compositions. The ratio composition of coal fly-ash and epoxy resin proposed in this study are 90:10 (PLA_90:10), 80:20 (PLA_80:20), and 70:30 (PLA_70:30). From the results of testing the compressive strength and specific gravity of the three aggregate compositions, it was found that PLA_70:30 had a compressive strength of 74.60 MPa and a specific gravity of 1668 kg/m³ at an aggregate age of 28 days. The aggregate microstructure is shown by scanning electron microscope (SEM) photo of each composition. The greater the composition of the epoxy resin on the lightweight polymer aggregate, the better the bond between the aggregate particles. The coal fly-ash is improperly bound and the aggregate becomes more fragile when there is less epoxy resin used. Furthermore, PLA_70:30 aggregate, which has become crushed aggregate, is inserted into a lightweight concrete mixture with a design quality of f'c = 17.5 MPa, following the requirements for lightweight concrete quality. The result is lightweight concrete with a compressive strength of 18.38 at 28 days, and specific gravity that varies between 1918.87 kg/m³ - 1928.93 kg/m³. According to the ASTM, the results of the compressive strength and specific gravity tests show that PLA_70:30 meets the standards specified as lightweight aggregates for lightweight structural concrete.

Identification of Sustainability factors of Self-Compacting Geopolymer Concrete for precast construction using SEM

Today's cement concrete industry is a major polluter. Cement, used as a binder in cement concrete, is made by high-temperature combustion, which raises atmospheric CO2 levels and contributes to climate change and natural resource depletion. As raw supplies diminish, several governments begin to levy carbon taxes. Numerous research have been undertaken to produce an innovative and ecologically advantageous construction material known as Geopolymer concrete (GC) in order to minimise and eliminate greenhouse gas emissions. In order to connect coarse aggregates (CA), fine aggregates (FA), and other materials in GC and improve concrete quality while using fewer natural resources, it is essential to replace cement with a byproduct substance rich in silicon and aluminium, such as red mud, fly ash (FA), rice husk ash (RHA), silica fume (SF), ground granulated blast furnace slag (GGBS), and others, activated by a high alkaline solution (AS). In this study were surveyed online and precast self-compacting geopolymer concrete's sustainability was examined. The data underwent factor analysis. Principal component analysis is used to extract factors. According to the research, there are 9 key variables to consider: Reduction in Carbon Footprint, Utilization of Waste Materials, Environmentally Friendly, Reduce Water usage during production, Low Maintenance, Augmentation of Mechanical Properties of Concrete, Natural Materials, Cost Effective, Reduction in Energy consumption during production. These are the nine primary sustainability criteria of Self-Compacting Geopolymer Concrete for Precast Construction.

ASSESSMENT OF SUSTAINABLE GREEN CONCRETE PROPERTIES USING RECYCLED PLASTIC WASTE AS REPLACEMENT FOR FINE AGGREGATE USING MACHINE LEARNING TECHNIQUE

The use of waste plastic as a replacement for natural aggregates in cement composites can solve the problem of the disposal of waste plastics sustainably. This study aims to investigate and compare the impact of replacing fine natural aggregate with recycled aggregates made up of polyethylene (PE) in M30 grade of concrete by analyzing the physical and mechanical properties of both fresh and hardened concrete in terms of workability, dry and fresh unit weight, 28-day compressive strength, flexural strength, split tensile strength, and ultrasonic pulse velocity. Nine concrete mixtures containing PE was prepared as a partial volumetric replacement for fine aggregate with substitution levels of 0%, 5%, 10%, 15%, 20%, 25%, 30%, 35% and 40%. Due to the application of superplasticizers, the workability of concrete containing recycled plastic has improved. The fresh and dry unit weight values of the PE-based concrete decreased by 8.16% and 8.6%, respectively, with the increase in PE aggregate and can therefore be considered lightweight concrete. The compressive strength of concrete at various ages is reduced as the quantity of plastic in concrete increases. As the PE replacement ratio in concrete increased, the flexural strength and split tensile strength also declined. Up to 10% replacement gives acceptable physical and mechanical properties of concrete for structural purposes. In this study, artificial neural network (ANN) was used to predict the fresh and hardened properties of waste plastic aggregate-based concrete, and it was discovered that it can predict concrete qualities with good accuracy (R<sup>2</sup> = 0.99).

Mechanical properties of pavement quality concrete with aluminium industry waste as a binder

Utilizing industrial marginal materials in the production of concrete makes it economical by reducing the cost of cement and reduces the environmental risk associated with Ordinary Portland Cement (OPC) production. Aluminium Dross (AD) is an industrial by-product from aluminium industry obtained during resmelting of aluminium ore in the furnace at high temperatures. Dumping of this waste in landfill makes it difficult to facilitate large area required and causes nuisance to the surrounding environment. Also, it is required to minimize the use of Ordinary Portland Cement (OPC) due to higher energy consumption involved in its production. AD is pre-treated and tested by Toxicity Characteristic Leaching Procedure (TCLP) to check its leachability. In this study, mechanical properties of concrete along with flexural fatigue behaviour are discussed with respect to partial replacement of AD for OPC. Strength properties of concrete at 15% AD replacement is comparable with that of control concrete. Scanning Electron Microscope (SEM) image of the concrete mix with 15% AD is taken to observe minor voids in comparison with the SEM image of normal concrete mix. Flexural fatigue behaviour is evaluated at varying stress levels and found that the concrete with 15% AD is satisfying the requirements to be used as Pavement Quality Concrete.

Durability Properties of Rigid Pavement Quality Concrete Containing Ground Granulated Slag

Based on the cost and durable characteristics, ground granulated slag was chosen. Pollution in the environment can also be reduced by limiting the entry of carbon dioxide and other harmful gases into the atmosphere. The current work is mainly associated with evolution of changes in compressive strength and weight loss in 4 different mixes of M20 grade concretes namely conventional concrete (CC), concrete replaced by 1% polypropylene fiber by weight of cement (CC+1%PPF), total replacement of cement by slag along with (KOH and K₂SiO₃) solution (AASC) and total replacement of cement by slag along with (KOH and K₂SiO₃) solution with 1% polypropylene fiber (AASC+1%PPF). 14M KOH and K₂SiO₃ are considered to project AASC blends. Starter examination has investigated blends with various soluble base activator modulus at variable potassium oxide measurements. Higher qualities are obtained with a 5 percent oxide content and 1.25 MR. An expansion in potassium oxide measurements past 5% lessens strength boundaries. The effect of 0.3% and 1% of H₂SO₄ and MgSO₄ on the above concrete mixes (cubes) were immersed in solutions for 14, 28, 56, and 91 days and their behaviours are examined. Based on the results obtained, alkali-activated slag concrete with 1% polypropylene fiber is found to achieve high strength and low weight loss.

The Effect of the Use of Residues (Metallic Shavings) in the Formulation of Self-Compacting Concrete in Fresh and Hardened State

Self-Compacting Concretes (SCCs) have brought promising insight into the concrete industry to generate environmental impact and reduce costs. the absence of SCC vibrations generates a significant reduction in noise pollution in urban areas, ease of implementation, possibility of concreting heavily reinforced areas or areas with complex geometry and obtaining better quality concrete on the one hand, reduction of working time on site, of personnel during installation and reduction of the costs of industrial processes, on the other hand. Metal chips resulting from the modification of metal parts obtained by turning present problems of environmental pollution and storage. The recycling of this waste in the construction industry is an adequate solution for the production of concrete and can improve some of its properties. An experimental study to study the properties of SCC containing metal shavings with the study of the properties of SCC in the fresh state: flow, L-box and sieve stability. Properties in the hardened state of concretes: compressive strength and ultrasonic pulse velocity. The metal waste in the form of shavings, incorporated in a dosage of 0.5% of concrete volume in the mixtures of SCCs produced, which makes it possible to evaluate the effect of the addition of metal shavings on the characteristics of SCCs in the state fresh and hardened and to recover metal waste, the results confirm the advantage of adding metal shavings in the fresh state the SCCs studied keep their characteristics of self-plasticity, in the hardened state the results show an improvement in the compressive strength of the SCCs studied.

The Optimum Vibration of the Compressive Strength of Concrete Specimen

Concrete is the primary material in construction, so it needs further research to get good quality concrete. The quality and durability of concrete are influenced by the amount and shape of the air cavity inside the concrete. With vibrating, the air that is inside the concrete will be lost. The benefits of vibration will only be achieved if planned and implemented with a suitable method. With proper vibration, the air in the concrete will come out and make porous concrete. Reduction or removal of air cavities will make concrete mixes strong with low permeability, increasing the durability of concrete. This study aims to determine the optimum strong vibrating on the compressive strength of Fc’ 21,7 Mpa concrete. Vibrating will be performed on cylinder concrete samples with a duration time of 3 minutes and with different variations in acceleration 160 m/s2, 170 m/s2, 180 m/s2, 190 m/s2, 200 m/s2, variation velocity 140 mm/s, 150 mm/s, 160 mm/s, 170 mm/s, 180 mm/s, displacement variation 600 mm, 800 mm, 1000 mm, 1200 mm, 1500 mm. Each variation consists of 7 concrete samples. These tests were performed with methods of external vibrating by using MBT Vibrating table CO-410 in fresh concrete. Compressive strength testing is carried out at 28 days. This study shows that the optimum strong vibrating with acceleration 180 m/s2, velocity 160 mm/s, and displacement 1000 mm with the resulting compressive strength is Fc’ 23.06 MPa. So that knowing the optimum vibration strength can be the basis for the implementation of vibration to get the planned concrete quality.

Planning of Development Upper Structure of the Rorotan Labor Intensive Flats North Jakarta

The planning for this 16-storey building is a re-planning of the constructionproject for the Padat Karya Flats located in Rorotan, North Jakarta. Thisbuilding planning is carried out based on the procedure for calculatingconcrete structures for buildings (SNI 2847:2019). The data for this buildingplan was obtained from the architect planning the construction of the RorotanSolid Work Flats. The design of the superstructure includes the planning ofslab, beam and column elements; The scope of the discussion includescalculation of loading, calculation of initial dimensions, ETABS analysis,control of analysis results, final dimension design and reinforcement, designdrawings. The material used is reinforced concrete with a concrete quality offc'35 Mpa fc’40 Mpa and fy 420 Mpa. The basics of planning refer to SNI2847:2019 Procedures for Planning Concrete Structures for Buildings. AndSNI 1726:2019 Earthquake Resistance Planning for Building Structures.Structural analysis using ETABS program with dynamic analysis of ResponseSpectrum.The keyword Multi-storey building, planning, superstructure, slab,column, beam.

Assessment of Compressive Strength Variations of Concrete Poured in-Site of Residential Buildings in Isoko District, Delta State, Nigeria

Concrete with appreciable compressive strength is required for building constructions, to minimize the occurrence of building failures. Determination of the compressive strength of in-situ concrete produced in Isoko region of Nigeria was carried in this study. Concrete used for the construction of foundation wall footings for twenty residential buildings were sampled in the study. The compressive strength of the in-situ concrete was determined in accordance with ASTM standards. Field survey depicted that most (60%) of the concrete quality production process fell below the approved standard of 17 MPa, for residential buildings. The findings of the study revealed that the compressive strength of the in-situ concrete varied between 8.1 MPa and 19.8 MPa. Furthermore, the result of the compressive strength test showed that most (70%) of the in-situ concrete failed to meet the NIS recommended standard. Also, it was observed from the findings that proportionally, the concrete produced by conventional building/construction engineers was of a higher compressive strength, when compared to the concrete produced solely by masons. Based on observations obtained result obtained from this study, it is recommended that the Government should constantly educate building sites managers, on the need to adhere strictly to standard recommendations, in order to improve the quality of in-situ concretes produced.

Concrete Technology in a Rapidly Growing Urban Environment – The Case of Dar es Salaam City

Concrete is a building material that is used in great quantities second only to our use of water. The ingredient materials of concrete include cement, fine and coarse aggregates plus a reasonable amount of water, and sometimes additives. The construction of various structures like, residential buildings, commercial buildings, hospitals, schools, bridges, etc, needs good quality concrete. Good modern technologies are needed by the construction industry in order to effectively construct buildings which are durable. A study has been done with the main objective of assessing the concrete technologies existing in rapid growing cities in Sub-Sahara Africa like Dar es Salaam, and the challenges faced in attaining good quality constructions. The study was done through site visits, observations, sampling and testing. From the results, it has been found that traditional concrete technologies are still prevailing, while new technologies are starting to be adopted. Also there is a problem of conformance to the standards. It was therefore recommended that investment in Cement production industries is needed and that regulatory bodies must enforce builders to adhere to the standards in order to yield good quality constructions.

SUPERPAVE: ЗА І ПРОТИ, АБО ЧИМ НАМ КОРИСНИЙ SUPERPAVE

The main positions of the Superpave system regarding the principles and methods of predicting the durability of asphalt concrete in various environmental and transport conditions of their operating are considered. Arguments in favor or unacceptability of bitumen and asphalt concrete quality indicators provided by the system are presented. This concern: methods of design of compositions according to Fuller, assignment of asphalt concretes according to volumetric and spatial characteristics, obtaining of physical and rheological properties of bitumen. Attention is focused on the methods and criteria of laboratory compaction of asphalt concrete samples; attention is paid to the properties of asphalt concrete that give the most objective idea about the work of asphalt concrete in road layers (rutting resistance and fatigue). It is emphasized that the system does not consider water resistance and crack resistance of asphalt concrete. Attention is drawn to difficulties of an instrumental, financial and organizational nature regarding the implementation of the system in Ukraine. Keywords: bitumen, asphalt concrete, PG-zone, rutting resistance, stiffness, module, composition, compaction, zoning.

A Review on Partial Replacement of Cement in Concrete by Three Supplementary Materials

This paper explores the consequence of replacing cement by fly ash, rice husk ash and lime in concrete. For widespread use of these supplementary materials, it is important to ensure the quality of resultant concrete. In this paper literature related with workability, density, compressive strength, flexural strength and splitting tensile strength are analyzed. Main advantages and drawbacks of using these materials in terms of engineering properties are mentioned. Another aim of this review is to identify major research needed in this field to use these materials worldwide given that concrete is the most extensively used man-made material. IUBAT Review—A Multidisciplinary Academic Journal, 5 (1): 54-67

ANALYSIS OF PROPERTIES OF DECORATIVE CONCRETE IN ISOPARAMETRIC CONDITIONS OF OPTIMALITY CRITERIA

The article presents two computer materials science methods for analyzing the functional properties of decorative concrete. The method of experimental-statistical modeling is used to build nonlinear structured models that describe the material's physical, mechanical, and technological properties in the coordinates of five factors of concrete composition. The study of the influence of recipe factors on the characteristics of the composite was carried out according to a symmetrical three-level 27-point plan. Depending on the nature of the effect on the decorative composite, varied raw materials are combined into two groups of factors ‒ modifications of the cement-sand system and parameters of dispersed reinforcement. A comparative analysis of the local properties fields of reinforced and non-reinforced material compositions showed the feasibility of reinforcing the cement-sand matrix with hybrid glass fibers. However, based on the purpose of the work – to control the characteristics of a decorative non-reinforced composite, subject to a constant level of one of its criteria, the method of isoparametric analysis was used. The change in the quality criteria of composite compositions was analyzed in two versions of isoparameters. In the first one, all mortar mixes were characterized by the same viability within time  = 1.0, in the second one, all concrete compositions were isosthenic within the limits of compressive strength fcm = 56fcm. For statistical testing of the characteristics of the material, together with experimental statistical models, the Monte Carlo method was used. According to the results of the isoparametric analysis of the functional properties of the decorative composite, it was fairly reliably determined by the area of compromise relationships between the zeolite and the fine-grained filler, however, the coordinates of their optimal amount don’t match according to all criteria. An analysis of the results obtained by this method demonstrates that an engineering compromise between these factors should be sought in the area of their main levels of variation. Introducing finely dispersed zeolite instead of a part of cement is a technologically useful technique for improving the quality and durability of unreinforced decorative concrete.

THE EMERGENCE AND DEVELOPMENT OF A CRACK IN THE CONCRETE OF THE ABUTMENT OF THE LOWER HEAD OF LOCK № 2 OF THE VOLGA-BALTIC WATERWAY

An analysis of the concrete structures state of the lower head of lock № 2 of the Belousovsky hydroelectric complex of the Volga-Baltic waterway is presented. In 1985, a crack was discovered in the concrete of the left abutment of the lock lower head. Observations for the dynamics of its development have showed that the crack size increases with time. To explain the causes of the crack occurrence and development, an analysis of concrete quality of the lower head structures is made according to the data of previous studies. Taking into account the technology of concreting during the construction process, as well as studies carried out during operation, the low quality of concrete and its heterogeneous structure have been stated. The analysis of the soils structure at the base of the lower head is carried out; the filtration regime of groundwater movement is considered. It is noted that the base soils are represented by fine-grained sands with an interlayer of loams. The presence of several aquifers in the basement soils, as well as the formation of the pressure front of the hydroelectric complex, led to significant gradients of the filtration flow. This contributed to the development of suffusion processes in the soils of the lower head base, which led to the formation of a decompacted layer in the roof of the rocks of the lower head base. The data of modern surveys of soil characteristics confirm that suffusion processes continue at the present time. This led to the occurrence of multidirectional settlement of the right and left abutments of the lower head, which, in turn, led to the development of the crack in the concrete mass. The measures taken to eliminate or stabilize the development of the crack, namely, pumping a cement-sand mixture into the soil, grouting the abutment concrete, anchoring the structure, injecting the concrete mass with a two-component synthetic resin, have not stopped the crack opening, because the main reasons such as the poor quality of concrete and the weak bearing capacity of the underlying soils of the base had not been eliminated.

Recycling of Glass Waste on the Concrete Properties as a Partial Binding Material Substitute

Concrete is a significant construction material that is utilized extensively worldwide. A research study on the properties of concrete was conducted using Glass Waste (GW), which was readily available locally. As broken glass is difficult to sort, it is possible to positively utilize this waste particulate matter to reduce its detrimental impacts on both human health and the environment. Besides crushing or grinding, glass can transform into a natural pozzolan which enhances the fresh and hardened properties of concrete. This study also intends to reduce the amount of binding material used in the manufacturing of concrete blocks by making the best use of cement with Glass Waste. Therefore, an attempt has been made by using GW from 5-20% by weight as cement replacement for concrete blocks. When 5% crushed glass waste was added to the concrete mix (1:2:4), maximum compressive strength was 25.90 N/mm2, as opposed to Ordinary Cement Concrete's 21.09 N/mm2 strength, according to workability and laboratory testing. The 5% Glass Waste Mixed Cube and 5% Glass Waste Mixed Cylinder had the lowest water absorption test values at 2.22% and 3.58% respectively. In comparison to Ordinary Cement Concrete, Glass Waste Concrete has higher tensile strength. The maximum splitting tensile strength for 5% crushed Glass Waste Concrete was 2.115 N/mm2, compared to 1.815 N/mm2 for an Ordinary Cement Concrete Cylinder. The concrete with 20% glass waste content had the highest density, which was 2380.4 kg/m3 that defines good quality concrete.

Effect of Alum Sludge (AS) and Palm Kernel Ash (PKA) with Coconut Shell as Partial Replacement of Aggregates

At present, there is a high demand for concretes with varying properties. Generally, concrete with high durability can be produced by considering the constituents of the concrete, such as cement, sand, aggregates, and water. The quality of concrete is also dependent on the mix design and production method, such as transporting and pouring of concrete. In recent years, the developed countries have been focusing on the issue of sustainability in construction to create a healthier environment and reduce the environmental impact of a building throughout its lifetime while optimizing its economic viability and ensuring the comfort and safety of the occupants. One way to achieve sustainability is using agricultural waste material such as palm oil fuel ash, rice husk, fly ash slag, sludge, and coconut shell in concrete production. This study performs a series of tests to investigate the effect of using alum sludge (AS) and palm kernel ash (PKA) with coconut shells as a partial replacement of aggregates. The concrete samples were subjected to compressive strength, flexural strength, rebound hammer, ultrasonic pulse velocity, water permeability, water absorption, carbonation, alkali-silica reaction, SEM, and shrinkage tests.

Properties of pavement quality concrete prepared with coarse RAP containing different percentages of asphalt

ABSTRACT The present study was carried out to establish the proportion of Coarse Reclaimed Asphalt Pavement (C-RAP) containing varying percentages of asphalt for preparing Pavement Quality Concrete (PQC) mixes. RAP was collected from the 5-year-old pavement and separated into coarse RAP (C-RAP) and fine RAP (F-RAP) aggregates using a 4.75 mm sieve. Asphalt content in the C-RAP and F-RAP was found to be 4.12% and 4.33%, respectively. The C-RAP was immersed in the toluene solvent for a different predetermined time and asphalt content was reduced to 3.05%, 2.12%, and 1.24%. Using this exercise, C-RAP containing four different percentages of asphalt (4.12, 3.05, 2.12, and 1.24%) was produced. Then, the cement concrete mixes were prepared in the laboratory by replacing Natural Coarse Aggregate (NCA) with C-RAP varying from 25% to 100% with an increment of 25% in each type. Manufactured Sand (M-Sand)/Crushed Stone Sand (CSS) was used as a fine aggregate. Altogether, 17 concrete mixes (one control and 16 mixes containing C-RAP) were produced while keeping the water–cement ratio unchanged in all the mixes and evaluated their fresh and hardened concrete properties. As the asphalt presence in the RAP is sensitive to the temperature, the strength of concrete containing RAP at different temperatures was also examined. The current study showed that the amount of NCA substituted by C-RAP and the quantity of asphalt present in the C-RAP influenced the properties of concrete. The study also established that NCA up to 100% could be replaced with the C-RAP containing low asphalt content. Using test results, empirical models were developed to estimate the properties of hardened concrete by considering the percentage of C-RAP, percentage of asphalt in C-RAP, and compressive strength of concrete as predictor variables. The developed models were found statistically significant, supported by .