In this research, the authors have developed an algorithm for predicting the compressive strength and compressive stress–strain curve of Basalt Fiber High-Performance Concrete (BFHPC), which is enhanced by a classical programming algorithm and Logistic Map. For this purpose, different percentages of basalt fiber from 0.6 to 1.8 are mixed with High-Performance Concrete with high-volume contact of cement, fine and coarse aggregate. Compressive strengths and compressive stress–strain curves are applied after 7-, 14-, and 28-day curing periods. To find the compressive strength and predict the compressive stress–strain curve, the Logistic Map algorithm was prepared through classical programming. The results of this study prove that the logistic map is able to predict the compressive strength and compressive stress–strain of BFHPC with high accuracy. In addition, various types of methods, such as Coefficient of Determination (R2), are applied to ensure the accuracy of the algorithm. For this purpose, the value of R2 was equal to 0.96, which showed that the algorithm is reliable for predicting compressive strength. Finally, it was concluded that The Logistic Map algorithm developed through classical programming could be used as an easy and reliable method to predict the compressive strength and compressive stress–strain of BFHPC.

High-performance concrete is a very popular construction material used in recent years. The compressive strength and flexure strength of High-performance concrete (HPC) reinforced with basalt fiber (BF) were investigated. The influence of six different fraction of basalt fiber which includes (0%, 0.6%, 0.9%, 1.2%, 1.5%, and 1.8%) on the compressive strength and flexural strength were examined. The experiment used local materials commonly used in the local construction industry in Moscow. The performance of the basalt fiber under distribution compressive stress and flexural stress were presented. The experiment shows that the increase of basalt fiber fraction will highly decrease the workability of the concrete mix and slightly decrease the compressive strength. The compressive strength for the basalt fiber fractions tested at 28 days was 101.43 MPa, 94.03 MPa, 92.69 MPa, 102.51 MPa, 97.12 MPa, and 95.69 MPa, respectively. The flexure strength was enhanced significantly by adding basalt fiber to the concrete mix. Basalt fiber fraction increased the flexure tensile strength 8.5%, 23.4%, 33.5%, 27.9%, and 30.7% for HPC06, HPC09, HPC12, HPC15, and HPC18, respectively. Hence, BF can be used effectively to improve the flexure tensile strength.

Basalt fiber-reinforced polymer composites are receiving considerable attention as they represent a low-cost green source of raw materials. In most cases, fiber-reinforced polymer composites face harsh environments, such as chloride ions in coastal marine environments or cold regions with salt deicing. The resistance of fiber-reinforced polymers subjected to the above environments is critical for the safe design and application of such composites. This research aims to develop a framework to investigate the durability properties of the lightweight expanded clay basalt fiber polymer reinforced concrete exposed to the NaCl environment. The specified quantity of concrete structural elements was cured in its specified curing solution for 28-day curing period before testing. The main effect of micro silica is to enhance concrete strength and durability. Dispersed basalt fibers with 20 mm length and 1.6 percent volume were added to the concrete mixtures. The concrete beams were reinforced with 2∅10 mm rebars as reinforcement while the concrete cylindrical columns were reinforced with dispersed chopped basalt fiber. The results show that addition of dispersed chopped basalt fiber in the concrete caused an increase in the flexural and compressive strength of the concrete structural elements. Micro silica enhanced the concrete strength even when immersed in NaCl solution. Basalt fiber and micro silica fume utilization enhanced the mechanical properties of the concrete.

The expansion of transport networks as a result of urban growth with low coverage and low integration leads to low transport efficiency and inaccessibility. This leads to poor connectivity in ancient urban areas of the Iraqi provinces. Identifying the Iraqi provinces with the lowest transport efficiency by performing the supply-demand ratio of the master plan for the center of Iraq's provinces (for example, the city of Karbala) is an indicator of the availability and accessibility of transport in urban areas. Solutions to meet transport needs have not focused on improving road capacity and meeting demand by improving operational efficiency even in surrounding communities. In this research theoretical model measured the degree of accessibility of the road network in the city to assess the effectiveness of transport. It has been identified that closer the coefficient of supply-demand to the zero points will provide a comfortable level of service to all road users. This theoretical model evaluates and improves the impact of changing the function of the road network and using different modes of transportation taking into account religious factors, full range of demand control, system efficiency, and infrastructure capacity clarifications.

The standard material used to construct flexible pavement is aggregate. Hot mix asphalt consists of 85 to 95 percent by weight and 75 to 85 percent by volume mineral aggregate, and hot mix asphalt properties and performance are highly affected by these aggregates' morphological properties. One of the most important variables determining the structural number, according to AASHTO design procedures, is the Resilient Modulus of these paving mixtures. In this research, coarse aggregate characteristics such as particle shape (cubical, blade, and disk), particle gradation (upper, middle, and lower specification limits), and surface texture (smooth and rough) were studied to explain their effects on the value of the resilient modulus. To achieve the goal of this study, Marshall Criteria were used to prepare the asphalt concrete mixture at the surface layer at its optimum asphalt content. Using a UTM25 device at a 40°C test temperature and a 200 ms load duration per ASTM D1234 designation, the resilient modulus was then tested. The findings indicate that aggregate morphological properties highly affect hot mix asphalt's resilient modulus. Aggregate gradation had the most significant effect on the value of resilient modulus, followed by aggregate particles shape, and then, finally by surface texture.

Concrete exposure to high temperature is a threat to the concrete which leads to loss of strength and degradation of the concrete. Based on this, it was necessary that the behavior on compression of lightweight expanded clay basalt fiber reinforced concrete (BFRC) be investigated when exposed to high temperature. The parameters and dosages of basalt fiber in lightweight expanded clay concrete have effects on the strength of the concrete. The sustainability of a structure in any environment is of high importance therefore, the types of material used as an aggregate and reinforcement must be durable, trustworthy and with the necessary properties suitable for the structure. The main aim of this paper is focused on the ability of lightweight expanded clay basalt fiber reinforced concrete when exposed to high temperature and tested for compressive strength, not to lose its total strength whereby, creating opportunity for the reuse of the concrete. The method of this research is based on laboratory test and practical review analysis. From the compressive strength, a view on the sustainability of this type of concrete is discussed. In this paper, the two sets of specimens were placed on three temperature ranges in a specific time interval. After, they were tested for compression. From the result, it was seen that expanded clay lightweight basalt fiber reinforced concrete didn’t lose much strength under compressive test after it was exposed to high temperature thereby making the concrete sustainable to high temperature.