Haleem K Hussain Al Bremani

University of Basrah · Department of Civil Engineering

This study inspects the structural behavior of composite steel concrete beams connected together by Y-Rib shear connectors using recycled concrete. The main method involves using stud shear connectors with normal concrete. By comparing the structural performance of Y-Rib shear connectors with conventional stud shear connectors, the study aims to de...

The structural performance of a steel-concrete-steel sandwich beam (SCSSB) with welded stirrups to the steel skin plates as shear connections exposed to a pure torsion load was studied in this paper. Eight SCSSB specimens were fabricated and tested under pure torsion. The effects of the compressive strength of the concrete core, 26 and 35 MPa, the...

This study demonstrates the behavior of a flat slab experimentally and numerically with two different types of shear reinforcements. Ten slabs were cast and tested in the experimental part. The samples were divided into two groups; the first consists of steel fiber, and the second has no steel fiber. Two control samples were considered with only fl...

This study investigates the shear strength behavior of two-layer reinforced concrete beams consisting of two different types of concrete. One of the layers made of lightweight concrete (LWC) and the other was normal weight concrete (NWC). A total of 16 shear deficient reinforced concrete beams were fabricated and cast with NWC, LWC, and two-layer b...

This paper presents the influence of polyolefin fiber on the flexural and shear attitude on the flat slabs. Three slab sets (80 cm × 80 cm) were tested, each with a thickness of 10 cm. In the first set (S1), the effect of fiber content on the flexural behavior of the flat slab was considered. Therefore, four slab specimens were cast, one of which w...

Abstract: Combining fiber with concrete mixes has become essential and its widespread use improves the strength of structural concrete elements. This research conducted an experiment into the structural performance of flat slabs with and without a square opening using four types of fiber (hooked-end, straight, corrugated steel fiber and polyolefin...

A study of the behavior of fibers in high-strength reinforced concrete beams is presented in this paper. Twelve reinforced concrete beams were tested under a pure torsion load. Different compressive strengths (45.2, 64.7, and 84.8 MPa) and fiber volume fractions (0, 0.25, 0.5, and 0.75) with variable spacing between transverse reinforcements have b...

In this paper, twelve concrete beams with two different layers of concrete were evaluated as a simply supported beam under four-points loading. The beams assembled of two different types of concrete layers, one of which was normal-weight concrete (NWC) and the other was lightweight aggregate concrete (LWAC). The investigated parameters were the thi...

This study investigates the mechanical properties of hardened lightweight coarse aggregate concrete (LWAC) using Pumice as a lightweight aggregate. Eleven concrete mixes were prepared to investigate the effects of pumice ratio to total aggregate, micro-silica to binder ratio (MS/b), and the water to binder ratio ( w/b ) on equilibrium density, comp...

This study investigates the mechanical properties of hardened lightweight coarse aggregate concrete (LWAC) using Pumice as a lightweight aggregate. Eleven concrete mixes were prepared to investigate the effects of pumice ratio to total aggregate, micro-silica to binder ratio (MS/b), and the water to binder ratio (w/b) on equilibrium density, compre...

Flat slab system is a concrete plate propped on columns without the existence of beams. During the former century, flat slabs have been used widely in different building types. In general, flat slabs are made from brittle materials and also have a finite depth; thus, flat slabs may undergo to fail due to punching shear or high deflections. Therefor...

Currently, flat slabs become one of the widely used structures due to its architectural benefits such as uncomplicated formwork, flexibility and minimum construction time. However, these structures are relatively weak to resist the punching shear due to a considerable lowering in stiffness induced from the development of cracks that resulting from...

The most beneficial strategy of reporting the water quality condition of a river is the classification of data based on water quality, to manage water pollution in supervised areas. The current environmetric research combined with the explanation the monitoring data from the Al-Gharraf River in Thi Qar province. Twenty variables for water quality a...

Corruption is the major threaten to the societies, especially in developing countries. It has changeable aspects, among these, that which related to the construction projects. This study presents a survey tested respondent’s opinion on corruptio n of construction projects in Iraq. The survey based mainly on the persons who have personal experienc...

This research study the effect of exist of opening in web of deep beam loaded directly and indirectly and the behavior of reinforced concrete deep beams without with and without web reinforcement, the opening size and shear span ratio (a/d) was constant. Nonlinear analysis using the finite element method with ANSYS software release 12.0 program was...

This paper presents experimental study to retrofitted reinforced concrete Hollow Section Bridge. The study was carried out on the White River Bridge structure (Bai xi da Qiao / China). The effect of retrofitting on stress and strain of beams at the critical section was studied. Evaluating the bridges girder after strengthening using new material ca...

The analytical study of reinforced concrete simply supported deep beams subjected to two-point loads were carried out using finite element method to study the behavior of deep beam by considering flexural behavior, ultimate strength, and deflection shape. The effective span to depth ratios of the deep beams considered was 1, the ABAQUS program is u...

In river water quality management, it is very important to use an effective approach to characterize complex water quality processes. This work is referred to the employment of Neural Network models to predict the water quality parameters in the Shatt Al Arab River. In the analysis of the models, the most ordinarily used feed forward error back pro...

In river water quality management, it is very important to use an effective approach to characterize complex water quality processes. This work is referred to the employment of Neural Network models to predict the water quality parameters in the Shatt Al Arab River. In the analysis of the models, the most ordinarily used feed forward error back pro...

Hollow Bridge section inspection was carried out in this study and different reasons may cause major failure of bridge. The field inspection of bridge structural elements has been paying more attention of engineering academic researchers. The bridge has been exposed to fire accident in additional to the excessive load and environmental factors effe...

Bridge failures are often observed due different reasons, such as environmental sever conditions, exceed the traffic load, poor initial design requirements, etc; as well as the unexpected disaster accidents such as earthquakes, As a result, evaluation of the stability of bridge abutments has become an important part of engineering research. This st...

The polyurethane material is the main component of the new material polyurethane-cement composites (PUC) as a new material can be used for different structural purposes. The objective of this research was to explore the fundamental mechanical properties of the new material (PUC). The utilization of PUC material is a repairing material such at stren...

This paper presents a new type of material that can be used in many construction fields, especially for strengthening beams or bridge girders and retrofitting structural concrete elements. This material is called polyurethane-cement (PUC). The main purpose of using this new material is that it increases the capacity of beams and reduces crack propa...

Based on the use of Poly-Urethane-Cement composite material to strengthen the concrete structure element, this study concern of the strain induced in concrete and steel bar of control beam and retrofitted beams with PUC. This is a new technique of externally strengthen the Concrete girder beams, control beam (RC) were constructed same in all cases...

This study try to modified the concrete mixes by adding the (monomer of aniline) to the fresh concrete mixes using two type of cement mortar cubes (50 x 50 x 50 mm) with cement : sand ratio 1:3 and concrete cubes with dimension (150 x 150 x 150) mm with concrete mix (cement: sand: gravel) (1:1.5:3). This research includes two important variables fa...

This study reported the results of adding furfural on mechanical properties of Ordinary Iraqi cement. Furfural was used at four different ratios (1%, 2%, 3%, and 5 %) by weight to the mix of Iraqi Portland cement (Um-Quasar factory cement). The effect on the plasticizing and fluidity by table flow test for cement paste and slump test of fresh concr...

This study reported the results of adding furfural on mechanical properties of Ordinary Iraqi cement. Furfural was used at four different ratios (1%, 2%, 3%, and 5%) by weight to the mix of Iraqi Portland cement (Um-Quasar factory cement). The effect on the plasticizing and fluidity by table flow test for cement paste and slump test of fresh concre...

It is necessary to evaluate the bridges conditions and strengthen bridges or parts of them. The reinforcement necessary due to some reasons can be summarized as: First, a changing in use of bridge could produce internal forces in a part of structural which exceed the existing cross-sectional capacity. Second, bridges may also need reinforcement bec...

This study describes and evaluates the state of Qing Shang Bridge. The deterioration of bridge can be summarized due to increased internal forces may be a result of higher loading or due to the sever climatic and environmental weathers changes, bridges need reinforcement because damage due to external factors which reduced the cross-sectional resis...