👉የግንባታ ባለአሻራው አረፉ
💫ከ 1950 ዎቹ ጀምሮ በኢትዮጵያ የኮንስትራክሽን ዘርፍ ፈር ቀዳጅ በነበሩት አልቤርቶ ቫርኔሮ ማረፋቸው ተሰማ።
ጠቅላይ ሚንስትር ዐቢይ አህመድ (ዶ/ር) ህልፈታቸውን አስመልክቶ፦ "ሥራቸው የሀገራችንን የግንባታ ከባቢ እና ታሪካዊነት ያላቸው ምልክቶችን ላቅ ባለ ደረጃ የቀረፀ ነው፤ የተሰማኝን ሀዘን ለመግለጽ እፈልጋለሁ" ብለዋል።
ጨምረውም፦ የሥራ ውርሳቸው በነዚህ ብሔራዊ ምልክቶች እና በሚወክሉት የእድገት ትእምርት ሲታወስ ይኖራል። ለነፍሳቸው ረፍትን፣ በረፍታቸው ላዘኑ ሁሉ መጽናናትን እንመኛለን ሲሉ ገልጸዋል።
@etconp
💫ከ 1950 ዎቹ ጀምሮ በኢትዮጵያ የኮንስትራክሽን ዘርፍ ፈር ቀዳጅ በነበሩት አልቤርቶ ቫርኔሮ ማረፋቸው ተሰማ።
ከታሪካዊ ሥራዎቻቸው መካከል የአፍሪካ አዳራሽ (የተባበሩት መንግሥታት የአፍሪካ የኢኮኖሚ ኮሚሽን)፣ የአዲስ አበባ ማዘጋጃ ቤት፣ የኢትዮጵያ ንግድ ባንክ ዋና መሥሪያ ቤት፣ ሂልተን ሆቴል፣ ሚሊኒየም አዳራሽ፣ የጅማ አባጅፋር አውሮፕላን ማረፊያ ማሻሻያ፣ የአብርሆት ቤተመጻሕፍት፣ የአንድነት ፓርክ እና የብሔራዊ ቤተመንግሥት እድሳት ሥራ ይገኙበታል።
ጠቅላይ ሚንስትር ዐቢይ አህመድ (ዶ/ር) ህልፈታቸውን አስመልክቶ፦ "ሥራቸው የሀገራችንን የግንባታ ከባቢ እና ታሪካዊነት ያላቸው ምልክቶችን ላቅ ባለ ደረጃ የቀረፀ ነው፤ የተሰማኝን ሀዘን ለመግለጽ እፈልጋለሁ" ብለዋል።
ጨምረውም፦ የሥራ ውርሳቸው በነዚህ ብሔራዊ ምልክቶች እና በሚወክሉት የእድገት ትእምርት ሲታወስ ይኖራል። ለነፍሳቸው ረፍትን፣ በረፍታቸው ላዘኑ ሁሉ መጽናናትን እንመኛለን ሲሉ ገልጸዋል።
@etconp
😭10❤7👍2
👉 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👍2🔥1
#ADVERTISEMENT
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🏭🏠TSEGAYE and YOHANNES J-ቦልት & PLATE 🏚🏗 🌁🌆
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👉አድራሻ፦ መርካቶ ምንአለሽ ተራ ከጭድ ተራ ከፍ ብሎ
https://t.me/tsegaye2016Jbolt
❤3🔥1
👉Sustainable construction
💫Sustainable construction prioritizes building practices that minimize environmental impact and maximize social and economic benefits throughout a building's lifecycle.
🚧This involves using environmentally responsible materials, improving energy efficiency, reducing waste, and promoting human health and well-being within the building.
📜Key aspects of sustainable construction include👇
🌵 Material Selection:
⏺Choosing sustainable materials like recycled, renewable, or low-carbon materials. This can include recycled steel, timber from sustainably managed forests, or locally sourced materials to reduce transportation emissions.
🌵 Energy Efficiency:
⏺Designing buildings that are energy-efficient through techniques like passive solar design, high-performance insulation, and efficient HVAC systems.
🌵 Waste Reduction:
Minimizing waste during construction through practices like waste sorting, material reuse, and deconstruction for future use.
🌵 Water Conservation:
⏺Implementing water-efficient fixtures, rainwater harvesting systems, and greywater recycling.
🌵 Indoor Environmental Quality:
⏺Ensuring good indoor air quality through the use of low-VOC paints and adhesives, proper ventilation, and natural light.
🌵 Circular Economy Principles:
⏺Adopting strategies that promote the reuse, repurposing, and recycling of materials and components.
🌵 Social and Economic Considerations:
⏺Ensuring fair labor practices, supporting local businesses, and creating affordable and accessible housing.
🌟Benefits of Sustainable Construction:
🌵 Reduced Environmental Impact: Minimizing the use of resources, reducing carbon emissions, and preserving ecosystems.
🌵 Lower Operating Costs: Energy-efficient buildings and water-saving fixtures can lead to lower energy and water bills.
🌵 Improved Indoor Environment: Healthier and more comfortable spaces for occupants.
🌵 Increased Building Durability: Sustainable materials and construction methods can lead to longer-lasting buildings.
🌵 Enhanced Social and Economic Benefits: Supporting local communities and creating jobs.
📍 In conclusion, sustainable construction is a holistic approach that considers the entire life cycle of a building, from design and construction to operation and eventual deconstruction, with the goal of minimizing environmental impact and maximizing social and economic benefits.
@etconp
💫Sustainable construction prioritizes building practices that minimize environmental impact and maximize social and economic benefits throughout a building's lifecycle.
🚧This involves using environmentally responsible materials, improving energy efficiency, reducing waste, and promoting human health and well-being within the building.
📜Key aspects of sustainable construction include👇
🌵 Material Selection:
⏺Choosing sustainable materials like recycled, renewable, or low-carbon materials. This can include recycled steel, timber from sustainably managed forests, or locally sourced materials to reduce transportation emissions.
🌵 Energy Efficiency:
⏺Designing buildings that are energy-efficient through techniques like passive solar design, high-performance insulation, and efficient HVAC systems.
🌵 Waste Reduction:
Minimizing waste during construction through practices like waste sorting, material reuse, and deconstruction for future use.
🌵 Water Conservation:
⏺Implementing water-efficient fixtures, rainwater harvesting systems, and greywater recycling.
🌵 Indoor Environmental Quality:
⏺Ensuring good indoor air quality through the use of low-VOC paints and adhesives, proper ventilation, and natural light.
🌵 Circular Economy Principles:
⏺Adopting strategies that promote the reuse, repurposing, and recycling of materials and components.
🌵 Social and Economic Considerations:
⏺Ensuring fair labor practices, supporting local businesses, and creating affordable and accessible housing.
🌟Benefits of Sustainable Construction:
🌵 Reduced Environmental Impact: Minimizing the use of resources, reducing carbon emissions, and preserving ecosystems.
🌵 Lower Operating Costs: Energy-efficient buildings and water-saving fixtures can lead to lower energy and water bills.
🌵 Improved Indoor Environment: Healthier and more comfortable spaces for occupants.
🌵 Increased Building Durability: Sustainable materials and construction methods can lead to longer-lasting buildings.
🌵 Enhanced Social and Economic Benefits: Supporting local communities and creating jobs.
📍 In conclusion, sustainable construction is a holistic approach that considers the entire life cycle of a building, from design and construction to operation and eventual deconstruction, with the goal of minimizing environmental impact and maximizing social and economic benefits.
@etconp
❤10🔥1
👉RANKINE’S THEORY
⏺Rankine (1857) developed his theory of lateral earth pressure when the backfill consists of dry, cohesionless soil.
⏺The theory was later extended by Resal (1910) and Bell (1915) to be applicable to cohesive soils.
📜The following are the important assumptions in Rankine’s theory:
💫(i) The soil mass is semi infinite, homogeneous, dry and cohesionless.
💫(ii) The ground surface is a plane which may be horizontal or inclined.
💫(iii) The face of the wall in contact with the backfill is vertical and smooth. In other words, the friction between the wall and the backfill is neglected (This amounts to ignoring the presence of the wall).
💫(iv) The wall yields about the base sufficiently for the active pressure conditions to develop; if it is the passive case that is under consideration, the wall is taken to be pushed sufficiently towards the fill for the passive resistance to be fully mobilised. (Alternatively, it is taken that the soil mass is stretched or gets compressed adequately for attaining these states, respectively.
⏺Friction between the wall and fill is supposed to reduce the active earth pressure on the wall and increase the passive resistance of the soil. Similar is the effect of cohesion of the fill soil).
⏺Thus it is seen that, by neglecting wall friction as also cohesion of the backfill, the geotechnical engineer errs on the safe side in the computation of both the active pressure and passive resistance.
⏺Also, the fill is usually of cohesionless soil, wherever possible, from the point of view of providing proper drainage.
@etconp
⏺Rankine (1857) developed his theory of lateral earth pressure when the backfill consists of dry, cohesionless soil.
⏺The theory was later extended by Resal (1910) and Bell (1915) to be applicable to cohesive soils.
📜The following are the important assumptions in Rankine’s theory:
💫(i) The soil mass is semi infinite, homogeneous, dry and cohesionless.
💫(ii) The ground surface is a plane which may be horizontal or inclined.
💫(iii) The face of the wall in contact with the backfill is vertical and smooth. In other words, the friction between the wall and the backfill is neglected (This amounts to ignoring the presence of the wall).
💫(iv) The wall yields about the base sufficiently for the active pressure conditions to develop; if it is the passive case that is under consideration, the wall is taken to be pushed sufficiently towards the fill for the passive resistance to be fully mobilised. (Alternatively, it is taken that the soil mass is stretched or gets compressed adequately for attaining these states, respectively.
⏺Friction between the wall and fill is supposed to reduce the active earth pressure on the wall and increase the passive resistance of the soil. Similar is the effect of cohesion of the fill soil).
⏺Thus it is seen that, by neglecting wall friction as also cohesion of the backfill, the geotechnical engineer errs on the safe side in the computation of both the active pressure and passive resistance.
⏺Also, the fill is usually of cohesionless soil, wherever possible, from the point of view of providing proper drainage.
@etconp
❤15👏1
👉The initial setting of cement is primarily caused by the rapid hydration of tricalcium aluminate (C3A) when it comes into contact with water.
💫This reaction leads to the formation of a gel-like substance that begins to solidify the cement paste.
📜Here's a more detailed explanation:
⏺Tricalcium Aluminate (C3A):
This compound is the most reactive component in cement with water, and its rapid hydration is responsible for the initial setting.
⏺Hydration:When cement is mixed with water, the water molecules react with the cement compounds, a process called hydration. This reaction releases heat (heat of hydration).
⏺Gel Formation: As C3A hydrates, it forms a gel-like structure, primarily calcium aluminate hydrate. This gel starts to bind the cement particles together, leading to the initial stiffening of the cement paste.
⏺Other Compounds: While C3A is the main driver of initial setting, other compounds like tricalcium silicate (C3S) and dicalcium silicate (C2S) also contribute to the setting process, but their reactions are slower and contribute more to the later strength development.
@etconp
💫This reaction leads to the formation of a gel-like substance that begins to solidify the cement paste.
📜Here's a more detailed explanation:
⏺Tricalcium Aluminate (C3A):
This compound is the most reactive component in cement with water, and its rapid hydration is responsible for the initial setting.
⏺Hydration:When cement is mixed with water, the water molecules react with the cement compounds, a process called hydration. This reaction releases heat (heat of hydration).
⏺Gel Formation: As C3A hydrates, it forms a gel-like structure, primarily calcium aluminate hydrate. This gel starts to bind the cement particles together, leading to the initial stiffening of the cement paste.
⏺Other Compounds: While C3A is the main driver of initial setting, other compounds like tricalcium silicate (C3S) and dicalcium silicate (C2S) also contribute to the setting process, but their reactions are slower and contribute more to the later strength development.
@etconp
👏10❤3👍2
👉6 ሠራተኞች ከአራተኛ ፎቅ ወድቀው ሕይወታቸው አለፈ😭
💫በዛሬው ዕለት ከረፋዱ 4 ሰዓት አካባቢ ሲ.ኤም.ሲ ሚካኤል አካባቢ እየተገነባ በሚገኘው አያት ሪል እስቴት ላይ በግንባታ ሥራ ላይ የነበሩ ሁለት ሠራተኞች፤ ከአራተኛ ፎቅ ወድቀው ሕይወት ማለፋን አሐዱ ከቦታው ተገኝቶ ማረጋገጥ ችሏል።
አደጋው የደረሰው በልስን ሥራ ላይ ተሠማርተው በነበሩ ሠራተኞች ላይ ሲሆን፤ ሁለት ሠራተኞች ከሕንጻው 4ተኛ ፎቅ ላይ ሆነው የልስን ሥራ በማከናወን ላይ ሳሉ የቆሙበት ሊፍት (ዊንች) ካቦው በመበጠሱ አደጋው ደርሷል።
በወቅቱም ከሕንጻው ስር በመጎዝ ላይ የነበረ አንድ ሠራተኛ ዊንቹ ወድቆበት ወዲያውኑ ሕይወቱ ያለፈ ሲሆን፤ ከወደቁት ሁለት ሠራተኞች ውስጥ አንዱ ሠራተኛም በተመሳሳይ ወዲያው ሕይወቱ አልፏል።
የልስን ሥራ ሲሰራ የነበረው አንዱ ሠራተኛ ደግሞ፤ ከባድ ጉዳት ደርሶበት ለሕክምና እርዳታ ወደ ሆስፒታል ተወስዷል።
በትናትናው ዕለትም 4 የቀን ሥራ ሠራተኞች በተመሳሳይ ሁኔታ ከሪል እስቴቱ ሕንጻ ላይ ወድቀው ሁለት ሠራተኞች ሕይወታቸው ያለፈ ሲሆን፤ በሁለቱ ሠራተኞች ላይ ደግሞ ከባድ ጉዳት መድረሱን የሪል እስቴቱ የግንባታ ሠራተኞች ገልጸዋል።
እንዲሁም ከትናንት በስተያ ሐሙስ ሰኔ 12 ቀን 2017 ዓ.ም አምስት የግንባታ ሠራተኞች ከሕንጻው ላይ መውደቃቸው የተገለጸ ሲሆን፤ የሁለቱ ሠራተኞች ሕይወት ሲያልፍ በሦስቱ ሠራተኞች ላይ ከባድ ጉዳት ደርሷል ተብሏል።
በሕንጻው ግንባታ ላይ የተሰማሩ ሠራተኞች በተደጋጋሚ ተመሳሳይ አደጋ እየደረሰባቸው እንደሚገኝ የገለጹ ሲሆን፤ በሳምንት አንድ ወይ ሁለት ሠራተኞች አደጋ እንደሚደርስባቸው ተናግረዋል።
ሠራተኞቹ አክለውም፤ ሪል እስቴቱ በሠራተኞች ደህንነት ላይ ትኩረት ሰጥቶ ሊሰራ እንደሚገባ አሳስበዋል።
#FirstSafety
@etconp
💫በዛሬው ዕለት ከረፋዱ 4 ሰዓት አካባቢ ሲ.ኤም.ሲ ሚካኤል አካባቢ እየተገነባ በሚገኘው አያት ሪል እስቴት ላይ በግንባታ ሥራ ላይ የነበሩ ሁለት ሠራተኞች፤ ከአራተኛ ፎቅ ወድቀው ሕይወት ማለፋን አሐዱ ከቦታው ተገኝቶ ማረጋገጥ ችሏል።
አደጋው የደረሰው በልስን ሥራ ላይ ተሠማርተው በነበሩ ሠራተኞች ላይ ሲሆን፤ ሁለት ሠራተኞች ከሕንጻው 4ተኛ ፎቅ ላይ ሆነው የልስን ሥራ በማከናወን ላይ ሳሉ የቆሙበት ሊፍት (ዊንች) ካቦው በመበጠሱ አደጋው ደርሷል።
በወቅቱም ከሕንጻው ስር በመጎዝ ላይ የነበረ አንድ ሠራተኛ ዊንቹ ወድቆበት ወዲያውኑ ሕይወቱ ያለፈ ሲሆን፤ ከወደቁት ሁለት ሠራተኞች ውስጥ አንዱ ሠራተኛም በተመሳሳይ ወዲያው ሕይወቱ አልፏል።
የልስን ሥራ ሲሰራ የነበረው አንዱ ሠራተኛ ደግሞ፤ ከባድ ጉዳት ደርሶበት ለሕክምና እርዳታ ወደ ሆስፒታል ተወስዷል።
በትናትናው ዕለትም 4 የቀን ሥራ ሠራተኞች በተመሳሳይ ሁኔታ ከሪል እስቴቱ ሕንጻ ላይ ወድቀው ሁለት ሠራተኞች ሕይወታቸው ያለፈ ሲሆን፤ በሁለቱ ሠራተኞች ላይ ደግሞ ከባድ ጉዳት መድረሱን የሪል እስቴቱ የግንባታ ሠራተኞች ገልጸዋል።
እንዲሁም ከትናንት በስተያ ሐሙስ ሰኔ 12 ቀን 2017 ዓ.ም አምስት የግንባታ ሠራተኞች ከሕንጻው ላይ መውደቃቸው የተገለጸ ሲሆን፤ የሁለቱ ሠራተኞች ሕይወት ሲያልፍ በሦስቱ ሠራተኞች ላይ ከባድ ጉዳት ደርሷል ተብሏል።
በሕንጻው ግንባታ ላይ የተሰማሩ ሠራተኞች በተደጋጋሚ ተመሳሳይ አደጋ እየደረሰባቸው እንደሚገኝ የገለጹ ሲሆን፤ በሳምንት አንድ ወይ ሁለት ሠራተኞች አደጋ እንደሚደርስባቸው ተናግረዋል።
ሠራተኞቹ አክለውም፤ ሪል እስቴቱ በሠራተኞች ደህንነት ላይ ትኩረት ሰጥቶ ሊሰራ እንደሚገባ አሳስበዋል።
#FirstSafety
@etconp
😭19❤8
2437. A hinge support in a beam can resist
Anonymous Quiz
17%
bending moment only
51%
both horizontal and vertical forces
22%
only vertical force
10%
only horizontal force
👍11❤2
2436. If a building settles by 100 mm in a 5-year-period after construction, the type of soil below the foundation is _ and the reason of settlement is _.
Anonymous Quiz
13%
sandy, compaction
24%
clayey, compaction
28%
sandy, consolidation
35%
clayey, consolidation
🙏8❤4
2435. For slender cylinders, as the height to lateral dimension ratio of the concrete specimen increases, the compressive strength:
Anonymous Quiz
12%
remains constant
46%
decreases
29%
increases
14%
first increases, then decreases
👏8❤3
2433. if the compacting factor of concrete mix is 0.92, its workability is
Anonymous Quiz
15%
(a) very low
22%
(b) low
27%
(c) medium
36%
(d) high
🎉6❤4
2432. if the slump of concrete mix is 60mm, its workability is
Anonymous Quiz
13%
(a) very low
20%
(b) low
41%
(c) medium
26%
(d) high
👏10❤5
2430. addition of pozzolanas in to concrete mixes improves
Anonymous Quiz
24%
(a) workability
29%
(b) resistance to chemical attack
42%
(c) both of the above
5%
(d) none of the above
👌5❤2
2428. Which apparatus we need to find soundness?
Anonymous Quiz
18%
(a) Le Chatelier
50%
(b) Vicat’s apparatus
19%
(c) CTM
13%
(d) Pat test
👏7❤6