Posts

Video from my YouTube channel

Subscribe to My You tube channel

Construction Safety Management: Turning Policy into Action

By -
A safety plan can be approved, filed, and available in the site office while the people doing the work still face unresolved hazards. The question for a project team is whether that plan changes what happens at the workface. The May 2024 paper Safety Management at Construction Projects: A Case Study of Infrastructure Projects, by Mohammad Mamon Hamdan and Salahaldeen Hamdan, examines safety management through infrastructure construction examples.[1] Give responsibility the authority to act The authors describe a safety management system built around policy, responsibilities, implementation, and evaluation. They emphasise shared responsibility and the authority needed to address hazards.[1] A practical interpretation is to connect every important safety requirement to a person and a decision. Who verifies readiness? Who resolves an unsafe condition? Who can stop the activity? Who confirms that work may resume? These questions make accountability visible. They also help supervisors under...
Post a Comment
Read more

Building Roads That Last: Quality Management in Flexible Pavement Construction

By -
  A newly completed road can look excellent on opening day. For the project team, the more demanding question is whether the evidence behind that finished surface justifies confidence in its long-term performance. That question is central to Critical Aspects of Quality Management in Flexible Pavement Construction, a December 2024 paper by Mohammad Mamon Hamdan. Quality begins before paving The paper presents pavement quality as a responsibility extending through design, construction, and testing. It identifies ground conditions, climate, traffic loading, material quality, and construction practices as interconnected influences on performance.[1] Flexible pavement consists of layers that transfer traffic loads to the ground beneath them. The paper stresses that subgrade investigation, realistic traffic assessment, and consideration of temperature and moisture must inform the design. It also highlights drainage, material testing, and proper laying and compaction as important controls...
Post a Comment
Read more

Can AI Be Trusted with Structural Analysis? Lessons from Beam Calculations

By -
  Artificial intelligence can produce an engineering answer in seconds. It can explain a method, write equations, and present a calculation that looks convincing. For a structural engineer, however, the decisive question is whether that answer accurately represents how the structure behaves. A June 2026 paper by Mohammad Mamon Fayiz Hamdan, An Assessment of Artificial Intelligence Capabilities in Structural Analysis: A Comparative Study of Determinate and Indeterminate Beams, examines this question through beam analysis. What the study tested The study evaluated ChatGPT, DeepSeek, Gemini, and Perplexity using beam problems with different levels of static indeterminacy and complexity. Their answers were compared with classical analytical solutions using the force and slope-deflection methods, alongside SAP2000 results. The reported pattern was clear: the tested AI systems produced reasonably accurate answers for determinate beams and some systems with low indeterminacy, while discre...
Post a Comment
Read more

5 Practical Civil Engineering Courses to Advance Your Career in Construction and Structural Engineering

By -
 Learn Construction Management, Road Construction, Concrete Technology, Pavement Design, and Pile Foundation Design Civil engineering is a broad and challenging profession that combines engineering principles, technical calculations, construction methods, and practical problem-solving. Whether you are a university student, a graduate engineer, or an experienced site engineer, continuously developing your technical knowledge is essential for professional growth. Working on real construction projects requires more than understanding engineering theory. Engineers must interpret drawings and specifications, coordinate with contractors, inspect construction activities, understand material properties, and ensure that completed works meet the required quality standards. For engineers interested in infrastructure and construction, developing knowledge across different areas of civil engineering can open new opportunities and improve their ability to handle technical challenges. To support ...
Post a Comment
Read more

Construction Field Management: A Practical Guide for Civil Engineers and Site Engineers

By -
 Learn How to Manage Construction Activities, Project Documents, Site Quality, and Safety Successful construction projects require more than technical design knowledge. Engineers working on construction sites must understand project documents, coordinate with different teams, monitor construction activities, ensure compliance with specifications, and maintain quality and safety throughout project execution. From reviewing contract drawings and bills of quantities to inspecting reinforcement, supervising concrete works, and managing excavation activities, construction field management involves a wide range of practical responsibilities. For civil engineers, graduate engineers, site engineers, and construction professionals, developing these skills is essential for improving site performance and building a strong foundation for career growth. If you want to strengthen your practical engineering knowledge, the Construction Management: Construction Field Management course by Mohammad ...
Post a Comment
Read more

Videos from My Youtube channel

Popular posts from this blog

Binding wire for steel reinforcement

By -
Image
  Binding wires are used to tie steel bars together. These wires are playing a significant role in maintaining the reinforcement stability and rigidity. Wires are used to tie the steel bars at intersections points. By tying the steel bars together, we ensure that the steel bars will not move from their locations during construction or during the time of concreting. In slabs, binding wires are used to tie longitudinal and transverse bars together. In columns, it is used to tie vertical bars with stirrups.   Figure 1 There are various types of binding wires such as  Black annealed baling wire, Stainless Steel Binding Wire, and PVC coated binding wires.  Black annealed baling wire used to tie black steel. The popular size for black wire ranges from 16 to 22 gauges. Stainless steel binding wires are used to bind stainless steel reinforcement. Stainless steel reinforcement is used in a harsh environment where the black steel gets rusted quickly. Therefore, stainless ...
Read more

stress-strain diagram for aluminium alloy and rubber

By -
Image
figure no:1 showing the stress-strain diagram for aluminum alloy. we can notice from the stress-stress diagram that aluminum has a considerable ductility. despite the absence of explicit yield point as in structural steel . the initial portion of the stress-strain curve is linear with a recognizable proportional limit. the proportional limit for aluminum alloy ranges from 70 to 410 Mpa (10 to 60 Ksi). aluminum alloy undergoes large strain before failure. ultimate stress ranges from 140 to 550 Mpa (20 to 80 Ksi). construction management: concrete construction bridge construction:How to become a bridge engineer Figure-1 Yield stress for aluminum alloy can be determined by drawing offset line parrel to the linear portion of the stress-strain curve. the straight line offset by a standard strain such as 0.002. the intersection point with the stress-strain curve is the point of yield stress. figure no:2 illustrates the concept of offset method. yield stress acquire...
Read more

Non-Working Pile Testing and Static Compression Load Test

By -
Image
Purpose of Non-Working Piles Non-working piles are constructed at the beginning of the project to evaluate soil bearing capacity and determine the maximum settlement. These piles are loaded up to twice the working load. Based on the test results, the pile length may be adjusted. If the measured settlement exceeds the allowable limit, the pile length will be increased accordingly. construction management: concrete construction bridge construction:How to become a bridge engineer Static Compression Load Test The static compression load test provides insight into how the pile responds to loading. Settlement is measured at different load increments to determine the appropriate pile design length. The maximum applied load is typically twice the working load (2 × working load) or as specified by local standards. The following steps outline the testing procedure: A. Steel Cage Preparation The steel reinforcement cage is prepared in accordance with the approved shop drawings. ...
Read more

Concrete repair-selecting the repair method

By -
Image
Repairing concrete structure passes through various stages. Selecting the correct repair method will depend on completing the previous steps, such as determining the cause of concrete damage, evaluate the extent of the damage, and assess the need for repair. The completion of these steps will define the type of conditions the repair must resist, the available repair construction time period, and when repairs must be accomplished. The data collected from performing these steps will help in selecting which of the 15 standard methods is suitable and durable for repairing the damaged concrete structure. Figure 1 In general, the old concrete surface should be prepared before beginning with the repairing process. It is essential to remove all unsound concrete before applying the repairing. Improper preparing of damaged concrete structure will result in unsatisfactory repair with low durability. The first step in preparing the old concrete surface is the saw cutting of repairin...
Read more

Prestressing stands debonding

By -
Image
  Prestressing bridge concrete beams contributes to resisting the tensile stresses caused by the traffic loads and the beam's weight. Stressing concrete has various benefits, such as increasing concrete members' capacity, reducing the concrete member section, and increasing the span lengths for structures such as bridges and buildings. However,  The stressing of bridge beam ends can result in unwanted cracks. Therefore AASHTO calling for debonding a specific portion of strands at the beam end to minimize the stresses and reduce cracks. Figure 1 Debonding is achieved by wrapping the strands at the end of the beam with plastic. Wrapping the strand with plastic wrapping will prevent the strands from bonding with concrete, thus avoid transferring unwanted stress to the beam end. As a result, the unwanted cracks will be prevented by reducing the stress levels at the end of the beam.  
Read more

The reasons behind the trimming of pile head

By -
Image
In general, the bored piles are casted to a level higher than the required pile cut-off level. Pile cut-off level is usually similar or a little bit higher than the blinding level of a pile cap. the process of constructing a cast-in-situ pile involves the following steps: installation of the temporary casing to prevent the soil collapse during the drilling process and to guide the drilling rig. Drilling the pile to the required level and diameter. Installation of a reinforcement cage. Reinforcement cage vertical bars will be extended above the pile cut-off level to improve the bonding with the pile cap. The casting of concrete usually done with a tremie pipe. Tremie pipe will be lowered to the bottom of the pile, and then the concrete will be poured. Once the casting is completed, the temporary casing will be removed. It is a common practice to cast the concrete above the cut-off level. the concrete casted then removed for the following reasons: during the casting pro...
Read more

Repairing of concrete bulging

By -
Image
Improper designing and installation of formwork for a concrete member can result in concrete Bulging. During the placing and compacting of concrete, forms may deflect largely in the weak areas. The deflection of forms will cause concrete to expand at this location, and this known as concrete Bulging. Concrete Bulging will spoil the appearance of a concrete member. Therefore we should always ensure that the forms are appropriately installed, and it is sufficiently supported to resist the concrete during placing and compacting. Bulging should be repaired in case we couldn't avoid it. The solution of concrete Bulging, offset, or surface irregularities are surface grinding. However, excessive surface grinding can weaken the concrete.  Figure 1 If the bulging or surface irregularities are small, grinding of concrete surface will be sufficient to remove surface irregularities. If the Bulging of concrete is significant, then the concrete should be chipped, and the surface...
Read more

Pile cap

By -
Image
Pile cap used to transfer the loads from superstructure to the piling. The pile cap is thick concrete mat rests on piles. It is part of the foundation and used to distribute the loads over the piles. Piles used when the soil bearing is not enough to carry loads of the structure. Figure 1  construction management: concrete construction bridge construction:How to become a bridge engineer Pile cap construction procedure Excavation around piles: After 7 days of the casting of the pile the concrete will gain approximately, 70% of it is compressive strength. The soil around piles will be removed to the required levels and dimension that allows construction of the pile cap. A step shall be made if the excavation is more than 1.5 m to prevent soil collapse. Figure 2 Pile head cutting: Concrete will be removed up to cut off level. If concrete under the cut off level is unsound. It shall be removed, and the pile will be repaired...
Read more

Prestressing strand manufacturing

By -
Image
  Prestressing strands is high tensile strength steel. The tensile strength of prestressing strands can reach up to 1860 Mpa. the process of manufacturing prestressing steel differs significantly from the conventional reinforcement.  Figure 1 The process of manufacturing strands will begin by de-scaling the raw material (wire rod). The purpose of de-scaling is to remove the iron oxides (mill scale) from the surface of the wire rod. after removing the mill scale, the wire rod's surface is coated with a textured coating to enhance the adherence of lubricants to the raw material surface. The most commonly used coating is zinc phosphate.  Figure 2 The wire rod then passed through a series of dies. The process of reducing the wire rod diameter is known as cold-drawing. In this process, the wire rod is drawn through a die with the required diameter. To prevent the wearing of dies, the wire rod will be drawn through a lubricant box. the lubricant will coat the wire with a thin l...
Read more

Rebar Splicing and Overlapping — ACI 318-19 Requirements Explained

By -
Image
Reinforcement splicing or overlapping is a fundamental requirement in reinforced concrete structures. Because reinforcement bars (rebars) are manufactured in limited standard lengths—typically 12 m —it becomes necessary to splice or overlap them to achieve the required continuity in structural members. The main purpose of a splice is to ensure smooth stress transfer between adjacent bars through the surrounding concrete. The overlap length, commonly known as the splice length , must be long enough to safely transfer the tensile stresses from steel to concrete without causing bond failure. It is recommended to avoid splicing in high-stress zones such as areas of maximum moment, and to stagger the splices to prevent congestion and reduce stress concentration. The ACI 318-19 providing the following recommendatin and requirement for the lap splicing: 1. Splice Limitation by Bar Size Lap splicing is not permitted for reinforcement bars larger than 36 mm in diameter. 2. Non-Contact L...
Read more