👉Chemical component of Portland Cement :

🚧Tricalcium Silicate ( C3S )

⏺Percentage : 50% - 65%

🏷Role

C3S hydrates and hardens quickly and consequently influences concretes setting time and early age strength significantly.

More strength gained from C3S occurs at the first stage of hydration.

The early strength development of C3S is accompanied by generation of heat.

Accordingly, when control of heat of hydration is important, such as in type II cement, the amount of C3S will be reduced to the lowest possible.

🚧Dicalcium Silicate ( C2S )

⏺Percentage: 20% - 40%

🏷Role

It is the second most abundant compound in Portland cement, develops strength slower than C3S while it's strength contributes at later ages. It is also produces less heat upon hydration than C3S.

Accordingly higher percentages of C2S are important in cements used to produce concrete when early age

strength is not as important as controlling heat generation such as type II cement.

🚧Tricalcium Aluminate ( C3A)

⏺Percentage : typically the following:

OPC ( type I ) : 5% - 12%
SRC ( type V ) : 3% - 5%
Type II : max 8%
Type III : 10% - 15%

🏷Role

C3A plays a major role in characteristics of fresh concrete.

It is starts the hydration process quickly upon exposure to water and generates much heat during the first few days.

It is also contributes to the very early age strength of one to three days, however it may somewhat reduce the advanced age strength.

🚧Tetracalcium Aluminoferrite ( C4AF )

⏺Percentage :

Grey cement : 5% - 12%
White cement : 1% - 2%

🏷Role

Mainly responsible for greyish color of cement due to containing iron

@etconp

👉የዛሬ 14 አመት>>> የህዳሴ ግድብን ጀምሮ ለማጠናቀቅ 80 ቢልዮን ብር ይፈጃል

🚧ዘንድሮ>>> የግድቡ 97.6 ፐርሰንት ግንባታ ቢያልቅም ቀሪውን 2.4 ፐርሰንት ለመጨረስ 80 ቢልዮን ብር ያስፈልጋል

ይህ በራሱ መገበያያ ገንዘባችን ብር ምን ያህል እየወደቀ እንደሆነ ማሳያ ቢሆንም 2.4 ፐርሰንት ስራ ለመጨረስ ይህን ያህል ገንዘብ ያስፈለገበትን ምክንያት የሚመለከታቸው አካላት ለህዝብ በግልፅ ሊያስረዱ ይገባል።

Figures via Sheger FM

@etconp

Intercon Construction Chemicals 
    
👉 Authorized agent of MC, SIMENTEK, Sika, Weber

● Concrete Admixtures
● Bonding Agents
● Waterproofings
● Concrete Repair, Grouting   
● Tile Adhesive & Tile Joint Fillers 
● Wall Putty, Prime Coat, Rush Coat
● Quartz, Contextra
● Floor hardener, Epoxy              
● Geotextiles, Geo-membranes and other construction chemicals and materials

Tel: 0961955555 or 0961955559
Address: Signal, around signal mall

Intercon Construction Chemicals 
    
👉 Authorized agent of MC, SIMENTEK, Sika, Weber

● Concrete Admixtures
● Bonding Agents
● Waterproofings
● Concrete Repair, Grouting   
● Tile Adhesive & Tile Joint Fillers 
● Wall Putty, Prime Coat, Rush Coat
● Quartz, Contextra
● Floor hardener, Epoxy              
● Geotextiles, Geo-membranes and other construction chemicals and materials

Tel: 0961955555 or 0961955559
Address: Signal, around signal mall

👉 AI in Ethiopia’s Construction Sector

Artificial Intelligence (AI) can revolutionize Ethiopia's construction sector, particularly in project management. By leveraging AI, the industry can achieve improved project outcomes, enhanced efficiency, and better resource management. Here’s a brief overview:

AI can enhance various aspects of project management:

- Automated Work Breakdown Structure (WBS) Creation: Efficient task identification and organization.
- Dynamic Task Prioritization: Real-time data improves project timelines.
- Cost and Schedule Estimation: Accurate estimates reduce cost overruns and delays.
- Quality Control and Risk Management: Continuous monitoring identifies risks proactively.
- Resource Optimization: Data analysis reduces waste and improves outcomes.

🚧Free AI Resources for Construction Companies

- TensorFlow: Flexible, extensive community support ([TensorFlow](https://lnkd.in/ejGJ8Esh)).
- Keras: User-friendly, integrates well with TensorFlow ([Keras](https://keras.io/)).
- PyTorch: Dynamic computation graph, strong community support ([PyTorch](https://pytorch.org/)).
- Scikit-learn: Easy to use, integrates well with other Python libraries ([Scikit-learn](https://scikit-learn.org/)).
- Hugging Face Transformers: State-of-the-art models, easy to use ([Hugging Face Transformers](https://lnkd.in/eYq2dBmw)).

### Role of the Ethiopian Government

To harness AI's potential, the Ethiopian government should:
- Develop AI Policies and Regulations: Clear guidelines on data privacy and ethical AI use.
- Invest in AI Infrastructure: Support AI adoption with high-speed internet and cloud computing.
- Promote AI Education and Training: Build a skilled workforce through partnerships.
- Create AI Centers of Excellence: Facilitate collaboration between government, industry, and academia.
- Support AI Startups and Innovation: Provide funding and incentives for AI startups.

In summary, AI can transform Ethiopia's construction sector by improving project management processes and outcomes. The Ethiopian government can foster AI adoption by developing supportive policies, investing in infrastructure, promoting education and training, creating Centers of Excellence, and supporting innovation. Leveraging free AI resources can help Ethiopian construction companies enhance their capabilities without significant financial investment.

This article was written in collaboration with Yonatan Tadesse, a certified project management professional, and PMI Infinity.

Via Yonatan Tadesse PMP

@etconp

👉TODAY TIP

💫Construction Interview Questions

🚧Q: 01 What are the duties or responsibilities of Civil or COTM Engineers? (asked every times)

Ans: A- Actually Civil Engineer has to assist the R.E in all respects, including site supervision and office works.
B- He has to check the quality of work as per contractual agreements of the contract, specification & according to Client / MOT circulars.
C- To make a draft regarding the site problems & forward to R E.
D- To make valuable coordination b/w the contractor & consultants.
E- He has to organize the duties of site staff.
F- To monitor the program according to contract schedule & inform to section Resident Engineer.
G- To make coordination b/w concerned department regarding the removal of obstacles.
H- To maintain the daily & weekly report, regarding site activities & forward to Section Resident Engineer.
I- To write site instructions note & forward to section Resident Engineer for action.
j- He has to keep recode of all correspondence and monthly report.
K- Randomly checking of lab testing and record.

🚧Q: 02 If contractor submit the schedule, how you will check it?
Ans: As per special specifications, we have to check,

A- Contractor's main power and machinery as available at site.
B- To check the program as per actual activities.
C- To correct the program and send to the contractor to revise for approval.

🚧Q: 03 What is the CPM and Bar Chart, What is the difference b/w CPM & Bar Chart? & Advantages?

⏺Ans: CPM or critical path method for making program for a construction. It consists of a series of line inter-connected each indicate an activity. The project is divided into a number of such activities and time duration is determined. Keeping in mind number of manpower and equipment.
Bar chart is a graphical representative of activities drawn horizontally representing the sequence, order & time duration. It may not necessarily be based upon list & average production of equipment whereas the CPM is basically based upon average production of equipment and availability of manpower..

🚧Q: 04 What is preparation period, what contractor has to do OR What you will check during the mobilization period? (three times repeated)

⏺Ans: This is the three months duration period from the date of contract signature.

⭐️1- To carry out all survey works,
A- Defining the road centre line and fixing of leveling marks.
B- Drawing of terrain x-sections.
C- Determining the sizes of the cutting & filling sections along the road.
D- Determining the actual locations of the concrete structures.
E- Specifying all obstructions & structures impending execution.
F- The contractor has to prepare the necessary structural design & submit same for approval by the ministry & Engineer.

⭐️2- Preparation of detailed work program for all work items which should be accomplished vide the primary activities schedule.

⭐️3- Preparation of workshop location & provision of equipment.

⭐️4- Preparation of the Engineers office & supervising staff complex according to specification during the six months period.
⭐️5- Specifying water resources, material resources & excavation places & obtain necessary written approval in this regard & the written approval of owners.
⭐️6- To carry out all necessary laboratory tests for approval.
⭐️7- Specifying the location of crushers & tests of materials to be crushed for concrete or asphalt pavement works.
⭐️8- Start of preparation of the concrete & bituminous mixture according to the related specifications, circulars & the special specifications.
⭐️9- Preparation of the drawings pertaining to traffic diversions & obtaining of necessary approval for same from the bodies concerned.
⭐️10- Preparation of qualifications of all the technical staff & proposed sub contractors for approval by the bodies concerned.
⭐️11- Preparation of the monthly IPCS & the monthly laboratory tests & get approval for same & all other reports, which will be used during contract period.

@etconp

ታምራት  ፕሌት እና ጄቦልት አቅራቢ

📌ፕሌትና ጄቦልት በፈለጉት አይነት የተዘጋጀ አለን

✂️ላሜራ መቁረጫ መብሻና  ማጠፊያ ማሽኖች አሉን

🔗ፌሮ (ቶንዲኖ) ጥርስ እናበጃለን እንዲሁም እናጥፋለን

📐ማንኛዉንም የሞደፊክ ስራዎችን እንሰራለን

📍ኢትዮጵያ ዉስጥ የትም እንልክሎታለን

አድራሻችን፦ ቁ.1 አዉቶብስ ተራ(መሳለሚያ)
                    ቁ.2 መርካቶ
                    ቁ.3 ተክለሀይማኖት

0904040477
0911016833

👉In construction project management, measuring success requires more than just tracking time and cost.

🚧Key Performance Indicators (KPIs) provide measurable metrics that ensure projects stay aligned with objectives.

🔹 What are Construction KPIs?

KPIs are specific, quantifiable metrics used to evaluate project performance.

Common KPIs in construction include:

Schedule Performance Index (SPI): Measures how closely the project follows the planned schedule.

Cost Performance Index (CPI): Tracks the budget efficiency of the project.

Planned vs. Actual Progress: Compares the completed work to the planned work.

Resource Utilization: Assesses how effectively resources are being used.

Safety Metrics: Tracks incidents and ensures adherence to safety standards.

Via Yonatan Tadesse PMP

@etconp

👉ውድ ቤተሰቦቻችን ምርጥ የ SAP ሶፍትዌር ቲቶርያል በ አማርኛ YOUTUBE ቻናላችን ላይ ጀምረናል

🌟እንሆ SAP 2000 በ ኣማርኛ ክፍል 1 ለቀነዋል

🙏ለ YOUTUBE ቻናላችን አዲስ ከሆኑ SUBSCRIBE በማረግ ቤተሰብ ይሁኑ እንዲሁም ለወዳጅዎ ያጋሩ

🖱Amharic SAP 2000 Tuetorial Part 1 👇

https://youtu.be/YgM9oXrXooU?si=tSQXvqN2Zivcl4kI

👉Why Are KPIs Important?

⏺Performance Tracking: Identifies areas requiring improvement.

⏺Informed Decision-Making: Helps stakeholders take proactive actions.

⏺Transparency: Keeps teams aligned and stakeholders informed.

⏺Continuous Improvement: Provides data for future project enhancements.

💫How Primavera P6 Enhances KPI Monitoring:

▶️Tracks real-time project performance.

▶️Generates detailed reports and dashboards for KPI analysis.

▶️Integrates cost, schedule, and resource data for holistic insights.

🏷KPIs are the pulse of a construction project, enabling teams to monitor, evaluate, and achieve goals effectively.

Via Yonatan Tadesse PMP

@etconp

👉As a site engineer, your role is critical in ensuring the successful execution of construction projects.

📜Here are the key responsibilities and important points to follow:

🔰General Responsibilities

1. Planning and Execution:
• Understand project plans, specifications, and drawings.
• Plan daily and weekly activities and allocate resources accordingly.

2. Site Supervision:
• Monitor construction activities to ensure work aligns with drawings and specifications.
• Ensure quality control at every stage of the project.

3. Coordination:
• Liaise with architects, consultants, subcontractors, and suppliers.
• Coordinate with the project manager for smooth progress.

4. Safety Compliance:
• Ensure workers follow safety protocols and wear PPE (Personal Protective Equipment).
• Identify and mitigate site hazards.

5. Material Management:
• Monitor material usage and minimize wastage.
• Ensure timely procurement and delivery of materials.

6. Documentation:
• Maintain daily progress reports, site logs, and inspection records.
• Record as-built drawings and changes made during execution.

Important Points to Follow
Before Starting Work
1. Site Preparation:
• Conduct a site survey to understand existing conditions.
• Clear site obstructions and ensure necessary utilities are available.

2. Review Plans:
• Carefully review drawings and specifications.
• Identify discrepancies or conflicts and raise RFIs (Request for Information).

3. Understand Project Scope:
• Be familiar with the schedule, milestones, and deliverables.

🌟During Construction

1. Quality Control:
• Conduct inspections for reinforcement, formwork, concrete pouring, and other key activities.
• Follow approved methods and standards (e.g., ASTM, ACI, or BS standards).

2. Time Management:
• Ensure activities are completed on time without compromising quality.
• Track progress and address delays promptly.

3. Resource Management:
• Ensure efficient use of manpower, machinery, and materials.

4. Communication:
• Clearly communicate instructions to workers and subcontractors.
• Address issues or conflicts immediately.

5. Monitoring:
• Keep an eye on weather conditions that could affect construction.
• Check for deviations from specifications or drawings.

After Construction
1. Inspection and Handover:
• Ensure all works are completed as per specifications.
• Conduct final inspections with the client and consultants.

2. Documentation:
• Prepare and submit handover documents (e.g., as-built drawings, test reports, warranties).
• Document lessons learned for future projects.

Additional Tips for Success
1. Stay Updated:
• Stay informed about construction techniques, software, and materials.

2. Be Proactive:
• Anticipate potential issues and address them early.
3. Focus on Safety:
• Conduct regular safety meetings and toolbox talks.

4. Maintain Good Relations:
• Build a positive relationship with workers, contractors, and stakeholders.

🏷By adhering to these principles, you can effectively manage site activities, ensure quality construction, and complete projects successfully.

@etconp

#Advertising #ማስታወቂያ #MusaFide
Our Services Include:

💻 Civil 3D Full Tutorials (4K Video)

Tutorials with project files used throughout the video for hands-on learning.
📊 All Supporting Materials

Access materials, including PKT Files, Superelevation Excels, & ERA Manual XML, to streamline your design work.
🏗 Girder Bridge Working Drawing Preparation

Complete working drawings for Girder Bridges, including all materials used in the tutorial, & the 3D model created in SketchUp.
🚗 Highway Design Expertise

Professional highway design services
🛠 Template Production & PKT Development Template creation & PKT development as per your project standards.

📏 Earthwork & Pavement Quantity Preparation

Earthwork & pavement quantity preparation to ensure precise cost estimation.
🏗 Structural Working Drawing Preparation

Detailed structural working drawings Preparation
Connect with Us:
YouTube: http://www.youtube.com/@musfide
Telegram: https://t.me/musafide
WhatsApp: https://bit.ly/musfide
Call Us: +251 905 666 664

#ADVERTISEMENT

🔧📐📐ፀግሽ ፕሌት እና ጄቦልት 📐📐  
                 መማምረቻ ድርጅት⚙🔧🛠


🛠🛠🛠የምንሰጣቸው አገልግሎቶች🛠🛠🛠

1 መገለጫችን የሆነው የሞደፊክ ስራዎች

2 እዲሁም ፕሌት ከ 1ሚሊም እስከ 30 ሚሊም እንቆርጣለን እበሳለን

3 በመቀጠል ጄቦልት 12ሚ እስከ 32ድረስ ጥርስ አውጥተን አጥፈን እናቀርባለን

4 የተለያዩ ቦልቶች በፈለጉት መጥን

                መገኛችን

ቁ1በእጆት ባለ ስልክ ለናተ ቅርብ

ቁ2 በታታሪዎች መገኛ ኮርቻ ተራ

ቁ3 አየር ጤና ኪዳን ምህረት ጊቢ ማንኛውም ልሜራ   
      እዛው በዘመናዊ ማሽን እቆርጣለን

ማሳሰብያ
ከጊዜው አንፃር የዋጋ ንረት ካሳሰቦት እኛጋ እሚገርም መፍትሄ አለ በማያስቡት መልክ ስራዎን ይሰራሉ ይደውሉ

ስልክ ቁጥር
0912492727
0913061530
0923764834

መልካም ስራ ለራስ ነው ቸር ይግጠማቹ ፀግሽ   
ፕሌት እና ጄቦልት!

👉ቁጥጥር ከተደረገባቸው 191 የመንግሥት ፕሮጀክቶች በግንባታ ላይ ያሉት 25 ብቻ ናቸው ተባለ

በውል ጊዜው እየተገነቡ ያሉት ደግሞ
22 ብቻ ናቸው

የኢትዮጵያ ኮንስትራክሽን ባለሥልጣን በተያዘው ዓመት በስድስት ወራት ውስጥ የውል ዋጋቸው 27 ቢሊዮን ብር የሆኑ 191 የመንግሥት የግንባታ ፕሮጀክቶች ላይ ቁጥጥር አድርጎ፣ በተያዘላቸው የመጀመሪያ የውል ዋጋ መሠረት እየተገነቡ ያሉት ፕሮጀክቶች 25 ብቻ መሆናቸውን አስታወቀ፡፡

ባለሥልጣኑ ይፋ ባደረገው መረጃ መሠረት ከ191 ፕሮጅክቶች በዋናው የውለታ ጊዜ መሠረት እየተገነቡ ያሉት የመንግሥት ፕሮጀክቶች 22 ብቻ ናቸው፡፡

በባለሥልጣኑ የኮንስትራክሽን ፕሮጀክቶች ቁጥጥርና ክትትል ክፍል መሪ ሥራ አስጻፈሚ አቶ በረከት ተዘራ ለሪፖርተር በሰጡት ማብራሪያ፣ በመንግሥት የግዥ ሕግ መሠረት አንድ ፕሮጀክት ከ18 ወራት በላይ የሚፈጅ ከሆነ ለፕሮጀክቱ የዋጋ ማስተካከያ እንዲደረግ ስለሚፈቅድ ነው ብለዋል፡፡

ይሁን እንጂ በተያዘላቸው የጊዜ ገደብና በተያዘላቸው ዋጋ መሠረት ያልተከናወኑ ፕሮጀክቶች ተቋማት መሬቱን ከይገባኛል ነፃ ሳያደርጉ፣ ባለቤቶች በሚያደርጉት የዲዛይንና የግንባታ ቦታ ለውጥ፣ በካሳ መዘግየት፣ በግንባታ ግብዓት እጥረት፣ በፀደቀ የሥራ መርሐ ግብር መሠረት አለመፈጸም፣ በአማካሪዎች የተሟላ ዲዛይን አለመቅረብ፣ የለውጥ ሥራዎችን በማዘዝና በወቅቱ ውሳኔ ባለመስጠት፣ በቂ በጀት ሳይመደብ ወደ ግንባታ ከተገባ በኋላ በሚፈጠር የበጀት እጥረትና መሰል ምክንያቶች መዘግየታቸውን ተናግረዋል፡፡

ሥራ አስጻፈሚው ፕሮጀክቶች ከመጀመራቸው በፊት በዕውቀት በመመራት አሠሪ ባለቤቶች ተገቢውን ዝግጅት አድርገው በመግባት፣ እንዲሁም ኮንትራክተሮች ለተፈጸመላቸው ክፋያ ትክክለኛ የአፈጻጸም ሪፖርት በማቅረብ ፕሮጀክቶችን በብቃት ሊመሩ ይገባል ብለዋል፡፡

በመንግሥት በጀት የሚከናወኑ የሕንፃ፣ የውኃና ኢነርጂ፣ እንዲሁም የትራንስፖርትና ኮሙዩኒኬሽን ግንባታ ፕሮጀክቶችን የመቆጣጠር ኃላፊነት የተሰጠው ባለሥልጣኑ፣ በ2017 ዓ.ም ግማሽ ዓመት ሰባት ቢሊዮን ብር ግምታዊ ዋጋ የተቀመጠላቸው 38 ያህል የመንግሥት የግንባታ ፕሮጀክቶች ላይ የዲዛይን ግምገማ ማካሄዱን አስታወቋል፡፡

ለዲዛይን ግምገማ ከቀረቡት 38 ፕሮጀክቶች ላይ በተከናወነ ቴክኒካዊ የምሕንድስና ግምገማ፣ የተጋነነ ዋጋ ላይ ማስተካከያ የተካሄደ መሆኑ ተረጋግጦ አንድ ቢሊዮን ብር ማዳን መቻሉን ባለሥልጣኑ ገልጿል፡፡

በግንባታ ግብዓት ጥራት ቁጥጥር ሥራ ላይ ክፍተት በፈጠሩ፣ እንዲሁም የጥራት ደረጃቸው ያልተረጋገጡ ግብዓቶችን ለኅብረተሰቡ ሲያሠራጩ በተገኙ 12 አቅራቢዎች ላይ ዕርምጃ መወሰዱን አስታውቋል፡፡

@etconp