Ethiopian Construction Work Professionals - ETCONp

👉UNDERSTANDING DRAINAGE SETTING OUT AND CONSTRUCTION

🏷Effective drainage systems are critical for managing stormwater runoff and preventing flooding in urban and rural areas.

💫Properly constructed drainage systems ensure the safe removal of excess water, protecting infrastructure and the environment.

💫Construction techniques/Activities description

▪️Carry out project assessment by evaluating the drainage requirements based on the project plans and specifications and also understanding the intended function, capacity, and location of the drainage system.
▪️Design analysis is by carrying out site assessment which include identifying topography, soil types, and water flow patterns, gradients, aninlet/outlet locations.
▪️Determining drainage requirements based on local regulations and rainfall data.
▪️Setting out
▪️Set up benchmarks to establish a reference level at a known elevation
▪️Establishing profile
▪️Establish the levels
▪️Ensuring proper slope and alignment to facilitate water flow
▪️Excavation and trenches
▪️Preparation of drainage bed
▪️Blinding of 50mm - 70mm thick to receive drainage base
▪️Laying of reinforcement baskets
▪️Laying of concrete cover blocks
▪️Installation of formwork
▪️Preparation of materials
▪️Design mix (1:2:4) used with proper amount of water.
▪️Carry out slump test to ascertain concrete workability
▪️Casting the base and walls of drainage with vibrated concrete
▪️Compaction and backfilling
▪️de-shuttering
▪️Allow for curing
▪️Carry out QA and inspection during and after.

Via Eagleng

@etconp

👉What Is Splicing of Reinforcement Bars?

🏷Splicing of reinforcement bars, commonly known as rebars, refers to the process of connecting two or more rebars in a reinforced concrete structure to ensure a continuous and load-resistant structure.

🚧It is a critical practice in construction to transfer the stresses from one bar to another effectively, maintaining structural integrity.

💫Methods of Splicing Reinforcement Bars
There are three primary methods of splicing reinforcement bars:

❇️1. Lap Splice

A lap splice is the most widely used method in reinforced concrete structures. In this technique, two rebars are overlapped and tied together using binding wires.
The overlap length, also known as the lap length, is crucial for ensuring the splice’s strength.

⏺It is determined based on factors such as:

• The diameter of the rebars.
• The grade of concrete.
• The specific application of the structure.

▶️The lap splice is easy to implement and cost-effective but may require additional concrete cover to accommodate the overlapping bars.
It is commonly used in columns, beams, and slabs.

❇️2. Mechanical Splice

A mechanical splice connects rebars using mechanical devices like couplers or clamps. This method is advantageous in situations where:

• Space is limited for lap splicing.
• Large-diameter rebars are used.
• High-strength connections are required.
Advantages of mechanical splicing:
• Uniform load distribution across the splice.
• Reduction in rebar congestion.
• Suitable for high-seismic zones and critical infrastructure like bridges and high-rise buildings.

Mechanical splicing is precise and durable but typically requires specialized equipment and skilled labor.

❇️3. Welded Splice

A welded splice uses welding techniques to join two rebars. The process involves heating the ends of the rebars to a high temperature and fusing them together under pressure.

⏺Key considerations for welded splices:

• Requires skilled welders and certified procedures.
• Commonly used in steel-intensive projects such as bridges, industrial buildings, and pipelines.
• Provides a strong and durable connection but demands stringent quality control to ensure effectiveness.

While welded splicing can deliver excellent results, it may not always be suitable for reinforcement bars with specific chemical compositions or in highly seismic zones due to reduced ductility.

📜Summary

⏺The three primary splicing methods for reinforcement bars—lap splicing, mechanical splicing, and welded splicing are essential for creating strong and durable reinforced concrete structures.

⏹Each method has its unique applications, advantages, and limitations.

• Lap splices are cost-effective and widely used.
• Mechanical splices are ideal for high-strength and space-constrained applications.
• Welded splices are strong and durable but require specialized expertise.

@etconp

👉The Future of Ready Mix
Concrete in Ethiopia

💫Ethiopia is a rapidly developing country with a growing economy.

⏺This has led to an increase in the demand for construction materials, including ready mix concrete.

▶️Ready mix concrete is a pre-mixed concrete that is delivered to the construction site ready to be used.

▶️It is a convenient and efficient option for construction projects, and it is becoming increasingly popular in Ethiopia.

🏷There are a number of reasons why ready mix concrete is becoming the future of construction in Ethiopia.

🚧First, it is a convenient and efficient option. Ready mix concrete is delivered to the construction site ready to be used, which saves time and labor.

⏺It is also a consistent product, which means that the quality is guaranteed. This is important for construction projects, as it ensures that the project will be completed on time and within budget.

🚧Second, ready mix concrete is a sustainable option. It is made with recycled materials, which helps to reduce the environmental impact of construction projects.

⏺Ready mix concrete is also a durable material, which means that it can last for many years with proper care and maintenance.

⏺This makes it a good investment for construction projects.

🚧Third, ready mix concrete is a cost-effective option.

⏺The cost of ready mix concrete is generally lower than the cost of other construction materials, such as cement and sand.

⏺This is because ready mix concrete is produced in large quantities, which reduces the cost per unit.

▶️The ready mix concrete industry in Ethiopia is growing rapidly.

▶️The construction industry is also expected to grow by an average of 10% per year over the next five years.

⏺This growth is being driven by the increasing demand for construction materials, the growing economy, and the government's commitment to infrastructure development.

🔰The ready mix concrete industry in Ethiopia is facing a number of challenges, including the lack of skilled workers and the high cost of raw materials.

⭐️However, the industry is working to overcome these challenges and is committed to providing high-quality concrete to its customers.

❇️The future of construction in Ethiopia is bright.

🎲The country is experiencing rapid economic growth, and the government is committed to infrastructure development.

⏺This is leading to an increase in the demand for construction materials, including ready mix concrete.

⏺Ready mix concrete is a convenient, efficient, sustainable, and cost-effective option for construction projects.

⏺It is becoming increasingly popular in Ethiopia, and it is the future of construction in the country.

@etconp

👉ስለ የግንባታ ሕግ ባለሙያ

🏷በሀገራችን ኢትዮጵያ የግንባታ ሕግ (Construction Law) እንደ አንድ የትምህርት አይነት የሚሰጥ እንጂ እንደ ስፋቱ ልክ ጥልቅ በመሆኑ ራሱን ችሎ የዲግሪ መርሐግብር የተቀረጸለት አይደለም።

⏺ነገር ግን አንድ የትምህርት ክፍል ሆኖ ልዩ ፕሮግራም ሊኖረው የሚገባ ነበር።

▶️የኮንትራክሽን ሥራ እንደህጉ እጅግ ሰፊና ውስብስ ሲሆን በአንዳንድ ሀገሮች የህግ ባለሙያዎች በእያንዳንዱ የኮንስትራክሽን ሥራ ዘርፍ የተለየ ሥልጠና (sub-specialist) የወሰዱ መሆኑን መረጃዎች ያሳያሉ።

💫ለምሳሌ በ’ፍሮንት ኢንድ ኮንስትራክሽን የተለየ ሥልጠና ያለው የሕግ ባለሙያ ፕሮጀክቱ በሚጀመርበት ጊዜ ከጨረታ ጀምሮ እስከ ውሎ ዝርዝር አቀራረጽ ድረስ የሚሳተፉ ሲሆን በ’ባክ ኢንድ’ ኮንስትራክሽን የሚሰለጥኑ የህግ ባለሙያዎ ደግሞ ከግንባታ መጠናቀቅ ጋር የተያያዙ የሚነሱ አለመግባባቶችን (claim, dispute and conflict) ስለሚፈቱበት አግባብ ስልጠና የሚወስዱ ናቸው።

⭐️የተለያዩ የዓለም ሀገራት እና ትላልቅ ፕሮጀክቶች በግንባታ ሕግ ልዩ ስልጠና የወሰደ ባለሙያ ብቻ እንዲቀጠር የሚደረግበት ልምምድ (experience) አለ።

▶️የሀገራችን ኮንስትራክሽንም ለግንባታ ሕግ ተፈጻሚነት ልዩ ትኩረት ካልሰጠ የሚስተዋለው አላግባብ የሆነ ዝርፊያና ቸልተኝነት የተሞላበት አሰራር ሊቃለል አይችልም።

🎲ለማንኛውም አስተያየትዎ  እና ሀሳብዎ ይጻፉልን!

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