Discuss the concept of high-performance concrete. Discuss some of its properties that make it preferred over conventional concrete.
Q: Discuss the role of water in concrete and its desired properties.
A: The role of water in the concrete is as follows. For curing For mixing concrete For proper heat of…
Q: The quantity of Fine aggregate required in making cement concrete of quantity 15 m³ using mix 1 :…
A: given volume of the concret mix=15 m3ratio of the mix=1:1.5:2.5
Q: Choose the correct answer One of the advantages of using concrete is. A-Low…
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Q: 1. A concrete masonry unit has actual gross dimensions of 7-5/8" × 7-5/8" × 7-5/8". The unit is…
A: Given Data:- Gross dimension of the concrete masonry = 7-58 in × 7-58 in × 7-58 in Failure load =…
Q: The strength of a fully matured concrete sample is 500 kg/cm2. When cured at an average temperature…
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Q: Discuss the concept of high-performance concrete. Discuss some of its properties that make it…
A: - High performance concrete (HPC) is a type of concrete engineered to be stronger and more robust…
Q: Draw a graph showing the typical relation between the compressive strength and age for continuously…
A: The graph is showing the important relationship between the compressive strength and age for…
Q: Discuss the change in volume of concrete at early ages.
A: To discuss: The change in volume of concrete at early ages.
Q: Describe the difficulty of designing a concrete mixture and the necessity of compressive strength.
A: The concrete mix design is important for any concrete structure. Various factors are involved in…
Q: normal-weight concrete has an average compressive strength of 4500 psi. What is the estimated…
A: Given-Normal weight concrete having compressive strength of 4500 psi. Required-To estimate the…
Q: A concrete masonry unit has actual gross dimensions of 7-5/8” * 7-5/8” * 7-5/8”. The unit is tested…
A: (a) It is required to determine whether the unit is hollow or solid: Gross volume (V)…
Q: Sketch the structure of Reinforced Concrete Cement. Explain different phases in it and explain each…
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Q: The water–cement ratio is important because it influences all of the desirable qualities of…
A: Solution-(a)The water cement ratios is calculated using voids that are not filled with asphalt.(b)…
Q: Define the Percentage of Kevlar (K49) to be used in Concrete ?
A: The fibers tested during this study are commercially available: Kevlar 119, 29, 129, forty nine and…
Q: The name of the test used to measure the consistency and workability of fresh concrete is called the…
A: The name of the test used to measure the consistency and workability of fresh concrete is called the…
Q: How long can ready-mix concrete remain in the mixer and still be used?
A: Time to be used of Ready Mixed Concrete (RMC) after mixing the water:
Q: A hollow concrete masonry unit has actual gross dimensions of 190 mm X190 mm X 390 mm (width X…
A: Given data: hollow concrete masonry dimensions ( H x B X L ) = 190mm x 190mm x 390mm failure load…
Q: 7-What is the effect of aggregate grading on the properties of concrete? 8-Describe kinds of slump…
A: Answer 7. Effect of aggregate on the properties of concrete.
Q: Reflection on Green concrete technology
A: Green concrete technology What is Green Concrete Technology Green Concrete is a revolutionary topic…
Q: A hollow concrete masonry unit has actual gross dimensions of 7@5/8 in. *7@5/8 in.* 15@5/8 in.…
A: Given data:
Q: A concrete masonry unit has actual gross dimensions of 7@5/8′′ * 7@5/8′′ *7@5/8′′. The unit is…
A: Given: The actual gross dimension of concrete masonry unit is 7-5/8” x 7-5/8” x 7-5/8”. The maximum…
Q: 2. (a) What is the distinction between cement and concrete? (b) Cite three important limitations…
A: Cement : Cement, in a broad sense, refers to all sticky compounds, but in a more specific meaning,…
Q: 1. The water-cement ratio is important because it influences all of the desirable qualities of…
A: SSD - Saturated Surface Dry state is the condition of aggregate where the surface of aggregates are…
Q: Three 100*200 mm cylindrical concrete specimens were tested for 28 days compressive strength and…
A: Given data: Compressive strength of the test specimens after 28 days fc1=30.5 MPafc2=29.6…
Q: 5. Consider the following data for concrete with mild exposure Water-cement ratio = 0.50 q1 Water =…
A: The given data is as follows: Concrete with mild exposureWater-cement ratio=0.50Water=191.6 litre
Q: Be familiar with the properties of Portland cement and their effect on concrete.
A: Answer Properties of Portland cement Final setting time= 275 min Finneness= 330 kg/m2 Soundness=…
Q: 1. A normal-weight concrete has an average compressive strength of 4500 psi. What is the estimated…
A:
Q: A normal-weight concrete has an average compressive strength of 4500 psi. What is the estimated…
A: compressive strength of concrete = 4500psi (1)Modulus of elasticity of concrete:-
Q: A concrete masonry unit has actual gross dimensions of 7@5/8′′ * 7@5/8′′ *7@5/8′′. The unit is…
A: (a) It is required to determine whether the unit is solid or hollow. Given the net volume = 312.7…
Q: List the types of aggregate used in concrete and their desirable characteristics.
A: Solution; There are types of aggregate used in concrete and their desirable characteristics are:…
Q: A hollow concrete masonry unit has an actual dimension of 150mm x 200mm x 400mm (W x H x L). The…
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Q: Chapter 13 Question: What is the elasticity of concrete for a normal weight mix (unit weight equal…
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Q: what are the physical and mechanical properties of concrete? list differently
A: Solution: Concrete is considered one of the most efficient materials used for construction due to…
Q: On which one of the following factors, does strength of concrete depend primarily? (a) Quality of…
A: Water cement ratio is one of the major factor on which strength of concrete depend . As the water…
Q: Discuss the concept of concrete maturity meters.
A: The concept of concrete maturity meters are explained as below,
Q: Discuss the different types of cement and composition of cement in detail.
A: Cement Cement is a cover material that makes a bond between aggregates and reinforcing materials.…
Q: Briefly note the distinction between cement and concrete.
A: Cement is a homogeneous material composed of well grinded calcareous(calcium containing) and…
Q: MAKING AND CURING OF CONCRETE TEST SPECIMENS what is the volume of concrete?
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Q: 11. Calculate the density (in kg/m³) and the compressive strength of the concrete (in MPa or N/mm?)…
A: The given data is: Cubic Sample of 100 mm Weight (kg) Load (kN) 1 2.52 655.8 2 2.59 670.9 3…
Q: Q2 c Discuss three (3) common concrete problems due to improper concreting works that can affect…
A: Given : Common concrete problems.
Q: Discuss four alternatives that increase the use and application of conventional concrete.
A: Conventional concrete refers to normal concrete mix or it is also known as conventional vibrated…
Q: Given grade 60 steel rebar and 4000 psi normal-weight concrete, (a) What is the yield strength of…
A: Yield strength & modulus of elasticity of the steel; a) The yield strength of steel (fy) is the…
Q: What do you mean by the workability of concrete; why do we need workable concrete? b) How…
A: Amount of water required to produce full compaction is called as workability of concrete. We need…
Q: State and explain the qualities of good cement.
A: It is always desirable to use the best quality cement in the various constructions. Therefore, all…
Q: 5. Consider the following data for concrete with mild exposure Water-cement ratio = 0.50 q1 Water =…
A:
Q: Four standard concrete cylinders of 6-inch diameter cross section were tested under uniformly…
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Q: A concrete mixture contains 250 lbs./yd3 of water, and 555 lbs./yd3 of cement. Calculate the w/c for…
A: Given data - Water in the concrete mixer (W) = 250 lbs /yd3 Cement in the concrete mixer (C) = 555…
Q: what is the value of gel porosity in concrete ?
A: Brief Concept Introduction: Concrete: It is the mixture of cement (binding material), aggregates,…
Discuss the concept of high-performance concrete. Discuss some of its properties that make it preferred over conventional concrete.
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- Discuss four alternatives that increase the use and application of conventional concrete.True or false: Generally speaking, concrete will be priced the same regardless of its designed strength, 4,500 psi concrete will cost the same as 3,000 psi concrete.Determine the modulus of elasticity of concrete by the ACI formula for a concrete cylinder that has a unit weight of 120 pcf (1920 kg/m3) and a compressive strength of 3000 psi (21 MPa)
- Write discussion about Compressive strength of cube and Cylinder concrete specimens.Explain the properties of fresh and hardened concrete? Explain in details about the determination of Compressive and Flexural Strength of Concrete Explain in detail about the determination of Young’s Modulus and Stress-Strain curve for concrete.6. Discuss the different types of volume change in concrete at early and long-term ages.
- A hollow concrete masonry unit has an actual dimension of 150mm x 200mm x 400mm(W x H x L). The unit was tested in a compression machine with the following result.Failure load = 1,200 kNNet volume = 4,400,000 mm2Determine: a) the gross area compressive strength.b) the net area compressive strength.What are the properties of Self-Consolidating Concrete?Define the Percentage of Kevlar (K49) to be used in Concrete ?
- A hollow concrete masonry unit has actual gross dimensions of 190 mm * 190 mm* 390 mm (width * height * length). The unit is tested in a compression machine with the following results: Failure Load = 1110 kN Net volume of 6 * 106 mm3 a. Calculate the gross area compressive strength. b. Calculate the net area compressive strength.A hollow concrete masonry unit has actual gross dimensions of 190 mm X190 mm X 390 mm (width X height X length). The unit is tested in a compression machine with the following results:Failure Load = 1110 kNNet volume of 6 X 106 mm3a. Calculate the gross area compressive strength.b. Calculate the net area compressive strength.What are the alternatives available to conventional concrete? Explain them in detail.