133. On which of the following do the numerical values of Terzaghi's bearing capacity factors depend?
Anonymous Quiz
55%
(a) Angle of internal friction of soil and depth of foundation
14%
(b) Angle of internal friction of soil only
21%
(c) Coefficient of curvature of soil and bulk density of soil
10%
(d) Uniformity coefficient of soil and dry density of soil
🙏9❤4👍3
134. Scientific planning of transport system and mass transit facilities in cities is based on
Anonymous Quiz
7%
(a) Spot speed data
23%
(b) Origin and destination data
66%
(c) Traffic volume data
4%
(d) Accident data
❤8👍4🥰1🙏1
135. Which of the following represents the hardest grade of bitumen?
Anonymous Quiz
36%
(a) 30/40
24%
(b) 60/70
20%
(c) 80/100
21%
(d) 100/120
❤7🎉1
136. Pick up the incorrect statement from the following
Anonymous Quiz
21%
(a) Seepage drains reduce the chances of water
39%
(b) Water-logging makes the land more productive
18%
(c) Water-logging is caused due to over irrigation
23%
(d) Excessive seepage from canal may cause water-logging
🎉7
140. Which test cannot be used for those samples having workability greater than corresponding to slump value of 50 mm
Anonymous Quiz
37%
(a) Slump test
23%
(b) Vee-Bee Consistometer Test
19%
(c) Flow Table Test
20%
(d) Compaction Factor Test
🙏4❤2
143. Curing of pavements, floors, roofs and slabs is done by
Anonymous Quiz
20%
(a) Membrane method
20%
(b) Ponding method
42%
(c) Sprinkling water method
18%
(d) Shading concrete method
❤7
145. The most commonly used admixtures which prolong the setting and hardening time of concrete are
Anonymous Quiz
34%
(a) Accelerators
51%
(b) Retarders
8%
(c) Plasticisers
7%
(d) Air entraining agents
👌5❤1
147. Which of the following theories of failure is most appropriate for a brittle material?
Anonymous Quiz
24%
(a) Maximum principal strain theory
30%
(b) Maximum principal stress theory
37%
(c) Maximum strain stress theory
9%
(d) Maximum strain energy theory
❤12
148. In permanent adjustment of levels, two peg test is done to correct or adjust
Anonymous Quiz
25%
(a) Line of collimation
29%
(b) Level tube
11%
(c) Cross-hair ring
35%
(d) Cross-hair ring and Line of collimation both
👍5
157. The lateral earth pressure on a retaining wall
Anonymous Quiz
35%
(a) Is equal to mass of the soil retained
28%
(b) Proportional to the depth of soil
22%
(c) Proportional to the internal friction of the soil
14%
(d) Proportional to the square of the depth of the soil
👏9❤1
158. Pick up the correct statement from the following.
Anonymous Quiz
26%
(a) The concrete gains strength due to hydration of cement
16%
(b) The concrete cured at a temperature below 23°C, gains strength up to 28 days
6%
(c) The concrete does not set at freezing point
52%
(d) All options are correct
🙏6❤3
159. In rolled steel beams, shear force is mostly resisted by
Anonymous Quiz
19%
(a) web only
22%
(b) flanges only
52%
(c) web and flanges together
8%
(d) none of the above
👍5❤1
161. The main object of compaction of concrete is
Anonymous Quiz
11%
(a) To eliminate air holes
6%
(b) To achieve maximum density
6%
(c) To provide intimate contact between the concrete and embedded materials
77%
(d) All option are correct
❤4🙏4
169. Which of the following statements is true?
Anonymous Quiz
49%
(a) Shear stress on principal planes is zero
31%
(b) Shear stress on principal planes is maximum
11%
(c) Shear stress on principal planes is minimum
8%
(d) None of the above
🙏12❤1
👉RECYCLABLE AND LOW-CARBON CONCRETE
💫Recyclable and low-carbon concrete refers to concrete mixtures and construction practices designed to reduce environmental impact while maintaining performance. Here's a breakdown:
♻️ Recyclable Concrete
Concrete that can be reused or recycled at the end of its life.
🏷Key Features:
⏺Recycled Aggregates: Crushed concrete used in new mixes.
⏺Supplementary Cementitious Materials (SCMs): Like fly ash or slag, reducing cement use.
Concrete Reuse: Whole blocks or panels reused in modular construction.
⏺Demolition-Friendly Design: Enables easy separation of materials.
🌍 Low-Carbon Concrete
Concrete with reduced greenhouse gas emissions, especially CO₂.
⏺Low-Carbon Strategies:
Cement Replacement:
Fly ash
Slag
Silica fume
Calcined clay (LC³)
Carbon Capture & Utilization (CCU):
Injecting CO₂ during mixing (e.g., CarbonCure)
Geopolymer Concrete:
No Portland cement; made from industrial byproducts.
Carbon-Negative Additives:
Biochar or mineralized CO₂ materials.
Efficient Mix Design:
Optimized water-cement ratio
High early strength for thinner elements
🔄 Synergy Between Recyclable and Low-Carbon Approaches
Recycled aggregates help avoid virgin material use.
Using SCMs both reduces carbon and increases durability.
Designing for reuse lowers lifecycle carbon footprint.
📉 Environmental Benefits
Up to 60–80% lower CO₂ emissions (depending on mix)
Reduced landfill waste
Lower embodied energy.
Via Yonatan Tadesse (PMP®️)
@etconp
💫Recyclable and low-carbon concrete refers to concrete mixtures and construction practices designed to reduce environmental impact while maintaining performance. Here's a breakdown:
♻️ Recyclable Concrete
Concrete that can be reused or recycled at the end of its life.
🏷Key Features:
⏺Recycled Aggregates: Crushed concrete used in new mixes.
⏺Supplementary Cementitious Materials (SCMs): Like fly ash or slag, reducing cement use.
Concrete Reuse: Whole blocks or panels reused in modular construction.
⏺Demolition-Friendly Design: Enables easy separation of materials.
🌍 Low-Carbon Concrete
Concrete with reduced greenhouse gas emissions, especially CO₂.
⏺Low-Carbon Strategies:
Cement Replacement:
Fly ash
Slag
Silica fume
Calcined clay (LC³)
Carbon Capture & Utilization (CCU):
Injecting CO₂ during mixing (e.g., CarbonCure)
Geopolymer Concrete:
No Portland cement; made from industrial byproducts.
Carbon-Negative Additives:
Biochar or mineralized CO₂ materials.
Efficient Mix Design:
Optimized water-cement ratio
High early strength for thinner elements
🔄 Synergy Between Recyclable and Low-Carbon Approaches
Recycled aggregates help avoid virgin material use.
Using SCMs both reduces carbon and increases durability.
Designing for reuse lowers lifecycle carbon footprint.
📉 Environmental Benefits
Up to 60–80% lower CO₂ emissions (depending on mix)
Reduced landfill waste
Lower embodied energy.
Via Yonatan Tadesse (PMP®️)
@etconp
❤7👍4🔥1🙏1
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🌟 📢 ATTENTION SURVEYORS & CONSTRUCTION PROFESSIONALS! 🌟
📍 Join the #1 Channel for Cadastral Surveying, GIS, and Land Development!
🛠️ Ethiopian Cadastral Surveyors – Your go-to hub for everything land and construction surveying.
🚀 What You'll Get:
✅ Practical tips & field techniques
✅ Surveying tools, guides & GPS tips
✅ Job opportunities & exam prep help
✅ Career advice & community support
✅ Land administration updates & more!
👷♂️ Whether you're a student, junior assistant, or experienced surveyor, this is the place to LEARN, GROW, and CONNECT.
📲 Join Us Today & Be Part of the Movement!
👉 t.me/Ethcadastralsurveyors
📤 Don't forget to share with your colleagues and friends!
🧭 Let’s shape the future of land and construction surveying TOGETHER! 💼🌍
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⏺አለምአቀፍ የኪነህንጻ ንድፍ ውድድር
🔰ለመጀመርያ ዲግሪ የኪነህንጻ ትምህርት ተማሪዎች።
📍ህንድ፣ The Drawing Board
📜ዝርዝሩን ለመመልከት እና ለመወዳደር ከታች የተያያዘውን ማስፈንጠርያ መጠቀም ይቻላል
⭐️10th edition of TDB! The architecture competition aims to create a Museum of Geology.
❇️Participate & present architectural design skills to eminent jurors at The Drawing Board 2025.
⚡️Submission Deadline: 6th Sep 2025.
🏷Download Design Brief Now.
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💫መልካም ዕድል🙏
@etconp
🔰ለመጀመርያ ዲግሪ የኪነህንጻ ትምህርት ተማሪዎች።
📍ህንድ፣ The Drawing Board
📜ዝርዝሩን ለመመልከት እና ለመወዳደር ከታች የተያያዘውን ማስፈንጠርያ መጠቀም ይቻላል
⭐️10th edition of TDB! The architecture competition aims to create a Museum of Geology.
❇️Participate & present architectural design skills to eminent jurors at The Drawing Board 2025.
⚡️Submission Deadline: 6th Sep 2025.
🏷Download Design Brief Now.
⏺900+ Participating Colleges
⏺15,000+ Registrations
⏺70+ Countries
https://tinyurl.com/9xznbr7x
💫መልካም ዕድል🙏
@etconp
🙏5❤1🎉1
Ethio Construction Engineering
👉Footing near existing adjacent footing @etconp 👇
👉Footing near existing adjacent footing
💫When new foundations are constructed, the foundations of existing adjacent old structures are likely to be affected due to undermining by excavations, vibration, etc.
🏷The intensity of damage caused to the old structure depends upon two factors:
1- Distance between the new and old structures.
2- Depth of new foundations.
🚧In order to avoid chances of damage to the existing adjacent old structures, the following rules are applied:
1- The minimum horizontal distance between the two foundations should be at least equal to the width of the wider one.
2- In case of soft soil, a line is drawn from the edge of bottom of old footing at an angle of 30° with the horizontal as shown in fig 1.37.
⏺The horizontal spacing of two footings is adjusted in such a way that the edge of bottom of new footing is not intersected by this line as shown in fig 1.37.
⏺The horizontal spacing between two footing in case of average soil is adjusted by keeping angle of inclination as 45° as shown in fig 1.38.
3- The foundation of new structure with reference to that of old structure should be located after making careful analysis of bearing capacity and settlement of soil.
@etconp
💫When new foundations are constructed, the foundations of existing adjacent old structures are likely to be affected due to undermining by excavations, vibration, etc.
🏷The intensity of damage caused to the old structure depends upon two factors:
1- Distance between the new and old structures.
2- Depth of new foundations.
🚧In order to avoid chances of damage to the existing adjacent old structures, the following rules are applied:
1- The minimum horizontal distance between the two foundations should be at least equal to the width of the wider one.
2- In case of soft soil, a line is drawn from the edge of bottom of old footing at an angle of 30° with the horizontal as shown in fig 1.37.
⏺The horizontal spacing of two footings is adjusted in such a way that the edge of bottom of new footing is not intersected by this line as shown in fig 1.37.
⏺The horizontal spacing between two footing in case of average soil is adjusted by keeping angle of inclination as 45° as shown in fig 1.38.
3- The foundation of new structure with reference to that of old structure should be located after making careful analysis of bearing capacity and settlement of soil.
@etconp
❤7👏7