👉The Proctor test is used in geotechnical engineering to determine the optimum moisture content (OMC) and maximum dry density (MDD) of soil.
💫This helps in knowing how much water should be added to a soil for achieving maximum compaction during construction.
🚧Types
🏷1. Standard Proctor Test
⏺Hammer weight: 2.5 kg
⏺Drop height: 305 mm
⏺Number of layers: 3 layers (each compacted with 25 blows)
⏺Mold volume: ~945 cc
🏷2. Modified Proctor Test (for heavier compaction like highways and airfields)
⏺Hammer weight: 4.54 kg
⏺Drop height: 457 mm
⏺Number of layers: 5 layers (each compacted with 25 blows)
⏺Higher compaction energy than the standard test
📜Procedure
1. Sample preparation – Air-dried soil is sieved (usually 19 mm sieve).
2. Moisture addition – Add water in measured amounts and mix thoroughly.
3. Compaction – Place soil in mold and compact in specified layers using the rammer.
4. Weighing – Record the weight of the compacted soil + mold.
5. Moisture determination – Take a small soil sample and find its water content in an oven.
6. Repeat – Perform the test with varying moisture contents.
7. Plot curve – Draw a graph of dry density vs. moisture content to find:
📍MDD → peak point of the curve
📍OMC → corresponding moisture content at MDD
⭐️Importance
▶️Ensures proper soil compaction for roads, embankments, foundations, etc.
▶️Prevents settlement and increases load-bearing capacity.
@etconp
💫This helps in knowing how much water should be added to a soil for achieving maximum compaction during construction.
🚧Types
🏷1. Standard Proctor Test
⏺Hammer weight: 2.5 kg
⏺Drop height: 305 mm
⏺Number of layers: 3 layers (each compacted with 25 blows)
⏺Mold volume: ~945 cc
🏷2. Modified Proctor Test (for heavier compaction like highways and airfields)
⏺Hammer weight: 4.54 kg
⏺Drop height: 457 mm
⏺Number of layers: 5 layers (each compacted with 25 blows)
⏺Higher compaction energy than the standard test
📜Procedure
1. Sample preparation – Air-dried soil is sieved (usually 19 mm sieve).
2. Moisture addition – Add water in measured amounts and mix thoroughly.
3. Compaction – Place soil in mold and compact in specified layers using the rammer.
4. Weighing – Record the weight of the compacted soil + mold.
5. Moisture determination – Take a small soil sample and find its water content in an oven.
6. Repeat – Perform the test with varying moisture contents.
7. Plot curve – Draw a graph of dry density vs. moisture content to find:
📍MDD → peak point of the curve
📍OMC → corresponding moisture content at MDD
⭐️Importance
▶️Ensures proper soil compaction for roads, embankments, foundations, etc.
▶️Prevents settlement and increases load-bearing capacity.
@etconp
❤14👍5
👉ዜና እረፍት😢
ህንጻ ነዳፊዋ ወይዘሮ መታሰቢያ ቶሎሳ ቆቱ አርፈዋል።
መታሰቢያ ቶሎሳ ከቀድሞው ህንጻ ኮሌጅ በ2001 ዓም በኪነህንጻ ትምህርት የባችለር ዲግሪአቸውን ያገኙ ሲሆን በዚያው ኮሌጅ በተለያዩ መስኮች አስተማሪ ሆነው ከመስራታቸው ባሻገር በተለያየ አማካሪ ድርጅቶች ውስጥ በሙያቸው አገልግለዋል።
በመጨረሻም በ ILRI ድርጅት ውስጥ በፋሲሊቲ ማኔጀርነት ይሰሩ ነበር።
ነፍስዎ በሰላም ትረፍ❤️
@etconp
ህንጻ ነዳፊዋ ወይዘሮ መታሰቢያ ቶሎሳ ቆቱ አርፈዋል።
መታሰቢያ ቶሎሳ ከቀድሞው ህንጻ ኮሌጅ በ2001 ዓም በኪነህንጻ ትምህርት የባችለር ዲግሪአቸውን ያገኙ ሲሆን በዚያው ኮሌጅ በተለያዩ መስኮች አስተማሪ ሆነው ከመስራታቸው ባሻገር በተለያየ አማካሪ ድርጅቶች ውስጥ በሙያቸው አገልግለዋል።
በመጨረሻም በ ILRI ድርጅት ውስጥ በፋሲሊቲ ማኔጀርነት ይሰሩ ነበር።
ነፍስዎ በሰላም ትረፍ❤️
@etconp
😭16❤8
👉WHY ROADS CRACKS
⚡️Roads can crack due to various factors, including:
🚧ENVIRONMENTAL FACTORS
1. TEMPERATURE FLUCTUATIONS: Repeated expansion and contraction of pavement materials due to temperature changes can cause cracks.
2. WATER INFILTRATION: Water seeping into the pavement can cause erosion, weakening the road structure, and leading to cracks.
3. FREEZE-THAW CYCLES: Water freezing and expanding in the pavement can cause cracks and damage.
🚧TRAFFIC AND LOAD
1. HEAVY TRAFFIC: Repeated heavy loads can cause fatigue and cracking in the pavement.
2. OVERLOADING: Exceeding the design load capacity of the road can lead to premature cracking.
🚧MATERIAL AND CONSTRUCTION
1. POOR MATERIAL QUALITY: Using low-quality materials can lead to premature cracking and deterioration.
2. INADEQUATE CONSTRUCTION PRACTICES: Insufficient compaction, poor drainage, or inadequate curing can contribute to cracking.
🚧MAINTENANCE AND AGE
1. LACK OF MAINTENANCE: Failing to seal cracks, repair potholes, or perform routine maintenance can accelerate deterioration.
2. AGING INFRASTRUCTURE: Older roads may experience more cracking due to wear and tear over time.
🚧OTHER FACTORS
1. SOIL SETTLEMENT: Settlement or shifting of the underlying soil can cause cracks in the pavement.
2. POOR DESIGN: Inadequate design or planning can lead to cracking and other structural issues.
💫Addressing these factors through proper design, construction, and maintenance can help minimize road cracking and extend the lifespan of the pavement.
@etconp
⚡️Roads can crack due to various factors, including:
🚧ENVIRONMENTAL FACTORS
1. TEMPERATURE FLUCTUATIONS: Repeated expansion and contraction of pavement materials due to temperature changes can cause cracks.
2. WATER INFILTRATION: Water seeping into the pavement can cause erosion, weakening the road structure, and leading to cracks.
3. FREEZE-THAW CYCLES: Water freezing and expanding in the pavement can cause cracks and damage.
🚧TRAFFIC AND LOAD
1. HEAVY TRAFFIC: Repeated heavy loads can cause fatigue and cracking in the pavement.
2. OVERLOADING: Exceeding the design load capacity of the road can lead to premature cracking.
🚧MATERIAL AND CONSTRUCTION
1. POOR MATERIAL QUALITY: Using low-quality materials can lead to premature cracking and deterioration.
2. INADEQUATE CONSTRUCTION PRACTICES: Insufficient compaction, poor drainage, or inadequate curing can contribute to cracking.
🚧MAINTENANCE AND AGE
1. LACK OF MAINTENANCE: Failing to seal cracks, repair potholes, or perform routine maintenance can accelerate deterioration.
2. AGING INFRASTRUCTURE: Older roads may experience more cracking due to wear and tear over time.
🚧OTHER FACTORS
1. SOIL SETTLEMENT: Settlement or shifting of the underlying soil can cause cracks in the pavement.
2. POOR DESIGN: Inadequate design or planning can lead to cracking and other structural issues.
💫Addressing these factors through proper design, construction, and maintenance can help minimize road cracking and extend the lifespan of the pavement.
@etconp
❤16👍1🔥1
👉"የኮንስትራክሽን ኢንዱስትሪው የሀገር የሥልጣኔ ማሳያ እንዲሆን ሥራዎችን በትብብር ማከናወን ይገባል"
- ምክትል ጠቅላይ ሚኒስትር ተመስገን ጥሩነህ
💫የኮንስትራክሽን ኢንዱስትሪው የሀገር የሥልጣኔ ማሳያ እንዲሆን ሥራዎችን በትብብር ማከናወን ይገባል ሲሉ ምክትል ጠቅላይ ሚኒስትር አቶ ተመስገን ጥሩነህ ገለፁ።
ምክትል ጠቅላይ ሚኒስትሩ የኮንስትራክሽን ኢንዱስትሪ ትራንስፎርሜሽን ኢኒሸቲቭን በዛሬው ዕለት ይፋ ባደረጉበት ወቅት እንደተናገሩት፤ ዘርፉ በኢትዮጵያ ከሶስት ሺህ ዓመት በላይ ታሪክ ያለው ነው።
ነገር ግን በሚጠበቅበት ልክ አላደገም።
መንግስት የዘርፉን ስብራት ለመጠገን ጨርሶ የመጀመር እና ፕሮጀክቶችን በጊዜ ገንብቶ የማጠናቀቅ ባህልን ለዘርፉ እያስተዋወቀ እንደሚገኝ ተናግረዋል።
በዚህም ቀንና ሌሊት የመስራት ልማድ፣ የፕሮጀክት ክትትል፣ ገንዘብን ለታለመለት ዓላማ ማዋል ተችሏል ብለው፤ ይህም የግሉ ዘርፍ ልማድን እየቀየረ የመጣ መሆኑን ተናግረዋል።
ኢኒሼቲቩ የአሰሪዎችና የዘርፉ ባለሙያዎች የሚመዘኑበት ሥርዓት እንዲሁም በዘርፉ የሚስተዋሉ ተግዳሮቶችን የሚፈታ መሆኑን የገለፁት አቶ ተመስገን፤ ትግበራው ለ25 ዓመታት እንደሚቆይ ገልፀዋል።
የከተማና መሰረተ ልማት ሚኒሰቴር ሚኒስትር ጫልቱ ሳኒ በበኩላቸው፤ ሚኒስቴሩ በአሥር ዓመት እቅዱ የኮንስትራክሽን ኢንዱስትሪው እንዲያድግ፣ ለዘርፉ አገልገሎት ከውጭ የሚገቡ በሀገር ውስጥ እንዲተኩ እንዲሁም በዘርፉ ከፍተኛ የሥራ ዕድል እንዲፈጥር ትኩረት ተደርጓል ብለዋል።
ለዚህም ሲባል ኢኒሼቲቩ ሲዘጋጅ የመንግስትና የግሉ ዘርፍ ተዋንያን ጋር ምክክር መደረጉን አንስተው፤ ከ50 በላይ ባለሙያዎችም ለኢኒሼቲቩ ግብዓት ሰጥተውበታል ሲሉ ገልጸዋል።
ይህም የሰው ኃይል ልማት ላይ ያለውን ክፍተት ለመሙላት የሚያስችል መሆኑን ተናግረዋል።
ኢኒሼቲቩ በዘርፉ ሥራ መስራት አስቸጋሪ እንዳይሆን፣ ዘርፉ ተወዳዳሪና ለሀገር እድገት የበኩሉን ሚና እንዲወጣ የሚያደርግ መሆኑንም ገልፀዋል።
Via ጋዜጣ ፕላስ
@etconp
- ምክትል ጠቅላይ ሚኒስትር ተመስገን ጥሩነህ
💫የኮንስትራክሽን ኢንዱስትሪው የሀገር የሥልጣኔ ማሳያ እንዲሆን ሥራዎችን በትብብር ማከናወን ይገባል ሲሉ ምክትል ጠቅላይ ሚኒስትር አቶ ተመስገን ጥሩነህ ገለፁ።
ምክትል ጠቅላይ ሚኒስትሩ የኮንስትራክሽን ኢንዱስትሪ ትራንስፎርሜሽን ኢኒሸቲቭን በዛሬው ዕለት ይፋ ባደረጉበት ወቅት እንደተናገሩት፤ ዘርፉ በኢትዮጵያ ከሶስት ሺህ ዓመት በላይ ታሪክ ያለው ነው።
ነገር ግን በሚጠበቅበት ልክ አላደገም።
መንግስት የዘርፉን ስብራት ለመጠገን ጨርሶ የመጀመር እና ፕሮጀክቶችን በጊዜ ገንብቶ የማጠናቀቅ ባህልን ለዘርፉ እያስተዋወቀ እንደሚገኝ ተናግረዋል።
በዚህም ቀንና ሌሊት የመስራት ልማድ፣ የፕሮጀክት ክትትል፣ ገንዘብን ለታለመለት ዓላማ ማዋል ተችሏል ብለው፤ ይህም የግሉ ዘርፍ ልማድን እየቀየረ የመጣ መሆኑን ተናግረዋል።
ኢኒሼቲቩ የአሰሪዎችና የዘርፉ ባለሙያዎች የሚመዘኑበት ሥርዓት እንዲሁም በዘርፉ የሚስተዋሉ ተግዳሮቶችን የሚፈታ መሆኑን የገለፁት አቶ ተመስገን፤ ትግበራው ለ25 ዓመታት እንደሚቆይ ገልፀዋል።
የከተማና መሰረተ ልማት ሚኒሰቴር ሚኒስትር ጫልቱ ሳኒ በበኩላቸው፤ ሚኒስቴሩ በአሥር ዓመት እቅዱ የኮንስትራክሽን ኢንዱስትሪው እንዲያድግ፣ ለዘርፉ አገልገሎት ከውጭ የሚገቡ በሀገር ውስጥ እንዲተኩ እንዲሁም በዘርፉ ከፍተኛ የሥራ ዕድል እንዲፈጥር ትኩረት ተደርጓል ብለዋል።
ለዚህም ሲባል ኢኒሼቲቩ ሲዘጋጅ የመንግስትና የግሉ ዘርፍ ተዋንያን ጋር ምክክር መደረጉን አንስተው፤ ከ50 በላይ ባለሙያዎችም ለኢኒሼቲቩ ግብዓት ሰጥተውበታል ሲሉ ገልጸዋል።
ይህም የሰው ኃይል ልማት ላይ ያለውን ክፍተት ለመሙላት የሚያስችል መሆኑን ተናግረዋል።
ኢኒሼቲቩ በዘርፉ ሥራ መስራት አስቸጋሪ እንዳይሆን፣ ዘርፉ ተወዳዳሪና ለሀገር እድገት የበኩሉን ሚና እንዲወጣ የሚያደርግ መሆኑንም ገልፀዋል።
Via ጋዜጣ ፕላስ
@etconp
❤10🔥2👍1
👉post-tensioning Vs pre-tensioning
⭐️In construction, post-tensioning and pre-tensioning are two methods of prestressed concrete used to enhance the strength and durability of concrete structures by introducing internal stresses that counteract external loads.
🚧Here’s a breakdown of both:
📍1. Pre-Tensioning
💫Process: Steel tendons (cables or wires) are tensioned before the concrete is poured.
⏺How it Works:
- Tendons are stretched between two anchorages.
- Concrete is poured around the tensioned tendons.
- Once the concrete hardens and gains sufficient strength, the tendons are released, transferring the stress to the concrete through bonding.
⏺Applications:
- Precast concrete elements (e.g., beams, slabs, railway sleepers).
- Prestressed hollow-core slabs.
- Factory-made structural components.
⏺Advantages:
- Better bond between tendon and concrete.
- No need for ducts or grouting.
- Cost-effective for mass production.
⏺Disadvantages:
- Requires large stretching beds.
- Mostly limited to precast construction.
📍2. Post-Tensioning
- Process:
💫Steel tendons are tensioned after the concrete has hardened.
▶️How it Works:
- Tendons (inside ducts or sleeves) are placed in the formwork before pouring concrete.
- After the concrete cures, the tendons are tensioned using hydraulic jacks and anchored at the ends.
- Ducts are often filled with grout to protect the tendons from corrosion.
▶️Applications:
- Long-span bridges, parking structures, and high-rise buildings.
- Slabs-on-ground (residential/commercial floors).
- Thin, heavily loaded structures.
▶️Advantages
- More flexible in design (can be curved or draped).
- Suitable for on-site construction.
- Reduces cracking and deflection.
▶️Disadvantages:
- Requires skilled labor and specialized equipment.
- Risk of tendon corrosion if not properly grouted.
📜Conclusion
- Pre-tensioning is ideal for mass-produced, small-to-medium precast elements.
- Post-tensioning is preferred for large, custom structures where on-site flexibility is needed.
💫Both methods improve concrete’s load-bearing capacity, reduce cracking, and allow for longer spans compared to conventional reinforced concrete.
@etconp
⭐️In construction, post-tensioning and pre-tensioning are two methods of prestressed concrete used to enhance the strength and durability of concrete structures by introducing internal stresses that counteract external loads.
🚧Here’s a breakdown of both:
📍1. Pre-Tensioning
💫Process: Steel tendons (cables or wires) are tensioned before the concrete is poured.
⏺How it Works:
- Tendons are stretched between two anchorages.
- Concrete is poured around the tensioned tendons.
- Once the concrete hardens and gains sufficient strength, the tendons are released, transferring the stress to the concrete through bonding.
⏺Applications:
- Precast concrete elements (e.g., beams, slabs, railway sleepers).
- Prestressed hollow-core slabs.
- Factory-made structural components.
⏺Advantages:
- Better bond between tendon and concrete.
- No need for ducts or grouting.
- Cost-effective for mass production.
⏺Disadvantages:
- Requires large stretching beds.
- Mostly limited to precast construction.
📍2. Post-Tensioning
- Process:
💫Steel tendons are tensioned after the concrete has hardened.
▶️How it Works:
- Tendons (inside ducts or sleeves) are placed in the formwork before pouring concrete.
- After the concrete cures, the tendons are tensioned using hydraulic jacks and anchored at the ends.
- Ducts are often filled with grout to protect the tendons from corrosion.
▶️Applications:
- Long-span bridges, parking structures, and high-rise buildings.
- Slabs-on-ground (residential/commercial floors).
- Thin, heavily loaded structures.
▶️Advantages
- More flexible in design (can be curved or draped).
- Suitable for on-site construction.
- Reduces cracking and deflection.
▶️Disadvantages:
- Requires skilled labor and specialized equipment.
- Risk of tendon corrosion if not properly grouted.
📜Conclusion
- Pre-tensioning is ideal for mass-produced, small-to-medium precast elements.
- Post-tensioning is preferred for large, custom structures where on-site flexibility is needed.
💫Both methods improve concrete’s load-bearing capacity, reduce cracking, and allow for longer spans compared to conventional reinforced concrete.
@etconp
❤20👏3
👉 INTERCON Construction Chemicals
● Concrete Admixtures
● Bonding Agents
● Waterproofings
● Wall Putty, Prime Coat
● Concrete Repair Mortar
● Floor hardener, Epoxy
● Grout, Self-level mortar
● Quartz paint, Contextra
● Tile Adhesive & Tile Joint Fillers
● Geotextiles and other construction chemicals and materials
Tel: 0961955555
Address: Signal, around signal mall
● Concrete Admixtures
● Bonding Agents
● Waterproofings
● Wall Putty, Prime Coat
● Concrete Repair Mortar
● Floor hardener, Epoxy
● Grout, Self-level mortar
● Quartz paint, Contextra
● Tile Adhesive & Tile Joint Fillers
● Geotextiles and other construction chemicals and materials
Tel: 0961955555
Address: Signal, around signal mall
❤2🥰1
Ethio Construction Engineering
👉የኮንስትራክሽን ኢንደስትሪውን ቁልፍ ችግር በአጭር ጊዜ ለመፍታት አዎንታዊ ለውጥ ለማምጣት እንዲያስችል ታስቦ በከተማና መሰረተ ልማት ሚኒስቴር የተቋቋመው ኢንደስትሪውን ተዋናዮች በውስጡ ያቀፈው የኮንስትራክሽን ኢንደስትሪ ትራንስፎርሜሽን ኢንሼቲቭ ማስጀመርያ መርሀ ግብር ዛሬ ነሀሴ 6 ቀን 2017 ዓ.ም በስካይ ላይት ሆቴል ተካሄደ።
👉የኮንስትራሽን ዘርፉን ወደ ከፍታ የሚያሸጋግር የኮንስትራክሽን ኢንዱስትሪ ትራንስፎርሜሽን ኢኒሼቲቭ ይፋ ሆነ
የኮንስትራሽን ዘርፉን ወደ ከፍታ ለማሸጋገር በፈረንጆቹ ከ2025 እስከ 2050 ድረስ የሚተገበር የኮንስትራክሽን ኢንዱስትሪ ትራንስፎርሜሽን ኢኒሼቲቭ ይፋ ተደርጓል።
ምክትል ጠቅላይ ሚኒስትር አቶ ተመስገን ጥሩነህ በዚህ የማስጀመሪያ መርሐ ግብር ላይ ተገኝተው እንደተናገሩት ዘመናዊ፣ ተወዳዳሪ እና ዓለም አቀፍ ደረጃውን የጠበቀ የኮንስትራክሽን ኢንዱስትሪ መፍጠር ያስልጋል።
በኮንስትራክሽን ኢንደስትሪ ውስጥ ለመቆየት ተወዳዳሪነት እና ብቃት ወሳኝ በመሆኑ ፕሮጀክቶችን በተያዘላቸው ጊዜ እና ወጪ ማጠናቀቅ አንዱ መገለጫ ሊሆን ይገባል።
አሰራሮችን ማዘመን ፣ቴክኖሎጂን መጠቀም፣ እና ዘመናዊ የፕሮጀክት ማኔጅመንት ስርዓትን መከተል ለኮንስትራክሽን ኢንዱስትሪው ህልውና እና አስተማማኝ እድገት ለማምጣት ወሳኝ ናቸው።
የኮንስትራክሽን ኢንዱስትሪው ለሀገራችን እድገት ጉልህ አስተዋጸኦ ሲያበረክት የቆየ እና በቀጠይም ማሳካት ለሚፈለገው ግብ የማይተካ ሚና ያለው ከመሆኑም ባሻገር መንገዶች ለማህበራዊ አገልግሎቶች ያላቸው ተደራሽነት በጣም ከፍተኛ ነው፡፡
ኢንዱስትሪው የሀገር ሥልጣኔ ማሳያ እንደመሆኑ ሥራዎችን በትብብር ማከናወን እንደሚገባ ተገልጿል።
Via ERA
@etconp
የኮንስትራሽን ዘርፉን ወደ ከፍታ ለማሸጋገር በፈረንጆቹ ከ2025 እስከ 2050 ድረስ የሚተገበር የኮንስትራክሽን ኢንዱስትሪ ትራንስፎርሜሽን ኢኒሼቲቭ ይፋ ተደርጓል።
ምክትል ጠቅላይ ሚኒስትር አቶ ተመስገን ጥሩነህ በዚህ የማስጀመሪያ መርሐ ግብር ላይ ተገኝተው እንደተናገሩት ዘመናዊ፣ ተወዳዳሪ እና ዓለም አቀፍ ደረጃውን የጠበቀ የኮንስትራክሽን ኢንዱስትሪ መፍጠር ያስልጋል።
በኮንስትራክሽን ኢንደስትሪ ውስጥ ለመቆየት ተወዳዳሪነት እና ብቃት ወሳኝ በመሆኑ ፕሮጀክቶችን በተያዘላቸው ጊዜ እና ወጪ ማጠናቀቅ አንዱ መገለጫ ሊሆን ይገባል።
አሰራሮችን ማዘመን ፣ቴክኖሎጂን መጠቀም፣ እና ዘመናዊ የፕሮጀክት ማኔጅመንት ስርዓትን መከተል ለኮንስትራክሽን ኢንዱስትሪው ህልውና እና አስተማማኝ እድገት ለማምጣት ወሳኝ ናቸው።
የኮንስትራክሽን ኢንዱስትሪው ለሀገራችን እድገት ጉልህ አስተዋጸኦ ሲያበረክት የቆየ እና በቀጠይም ማሳካት ለሚፈለገው ግብ የማይተካ ሚና ያለው ከመሆኑም ባሻገር መንገዶች ለማህበራዊ አገልግሎቶች ያላቸው ተደራሽነት በጣም ከፍተኛ ነው፡፡
ኢንዱስትሪው የሀገር ሥልጣኔ ማሳያ እንደመሆኑ ሥራዎችን በትብብር ማከናወን እንደሚገባ ተገልጿል።
Via ERA
@etconp
❤6
Surveying.pdf
5.2 MB
👍3🥰2❤1
Steel Structures.pdf
8.7 MB
❤3👍3🎉2