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: Choose the correct answer One of the advantages of using concrete is. A-Low…
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Q: If you knew that the cubic compressive strength of a certain type of concrete is 35 MPa, then…
A: Given:- compressive strength=35MPa=35N/mm2 To find:- Load
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: What is lightweight concrete? What are Nonstructural applications of lightweight concrete ?
A: Lightweight concrete Light weight concrete can be defined as type of concrete which includes an…
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: The strength of a fully matured concrete sample is 500 kg/cm². When cured at an average temperature…
A: Given data Day temperature (Td) = 20°C Night temperature (TN) = 10°C Datum temperature (To) =…
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: What are the alternatives available to conventional concrete? Explain them in detail.
A: Concrete is most widely used material in world for construction purpose due to its properties.Due to…
Q: Sketch the structure of Reinforced Concrete Cement. Explain different phases in it and explain each…
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Q: Q4: A: What is self-consolidating concrete? How are its properties achieved? How are these…
A: (A) Self consolidating concrete (SCC), additionally referred to as self compacting concrete, may be…
Q: what are the effects of aggregates in the performance of concrete?
A: Aggregates: ‘Aggregate’ is a term used for any particulate material that may includes gravel,…
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: Reflection on Green concrete technology
A: Green concrete technology What is Green Concrete Technology Green Concrete is a revolutionary topic…
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: 6) What are the three methods for measurement of tensile strength of concrete? Indicate which…
A: Since, the question to be solved is not specified, the solution for question 6 is as follows: The…
Q: Describe the challenge of concrete mixture design and the importance of compressive strength
A: challenge of concrete mixture design Cement content : A high cement content greater than or equal…
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: Write four aggregate properties that affect the compressive strength of concrete. (3 P)
A: Four aggregate property that affect the compressive strength of concrete: 1. Size of the aggregate…
Q: In the context of concrete structures, what is shrinkage? How does it occur? Discuss the factors…
A: Shrinkage:- The decrease in either length or volume of material results from changes in moisture…
Q: What is the importance of flexural strength in concrete?
A: Flexural strength is defined as the measure of the tensile strength of the concrete. Actually it is…
Q: 6-What is the range value of compressive strength for normal concrete 7 days and 28 days? 7-What is…
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Q: Q.1 Two groups of concrete produced with exactly the same mixing properties are given in the Table…
A: As per the guidelines we are supposed to solve only three sub-parts.
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: 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: What are the properties of Self-Consolidating Concrete?
A: Solution: Self compacting concrete is that concrete that flows under its own weight that do not…
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: Chapter 13 Question: What is the elasticity of concrete for a normal weight mix (unit weight equal…
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Q: Discuss the different types of volume change in concrete at early and long-term ages.
A: Answer:- Volume change of concrete: Concrete changes somewhat in volume for several reasons, and…
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: A. Differentiate between plain and reinforced concrete; why concrete is reinforced? B. What is the…
A: Question is based on concrete technology . In the question we have to differentiate between…
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: Four standard concrete cylinders of 6-inch diameter cross section were tested under uniformly…
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Q: Describe the challenge of concrete mixture design and the importance of compressiv
A: Challenges of concrete mixture design - Bad adaptability leads to cement concrete slump loss…
Q: what is the value of gel porosity in concrete ?
A: Brief Concept Introduction: Concrete: It is the mixture of cement (binding material), aggregates,…
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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.Compare and contrast the differences between concrete and cement in DETAILED PARAGRAPHS.
- 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)Urgent Take the unit weight of concrete to be 2400 kg/m3 and the specified compressive strength to be 28 MPa.From this, estimate the modulus of elasticity of concrete in GPa. (answer with complete solution) Final answer must be Ec = 26.752 GPaA 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.
- 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.Subject concrete technology Q: a)What particular precautions would you take when concreting (i) In winter, and (ii) in hot weather? b)What are the effects of hot weather on fresh concrete?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.
- Solve the two problems (Use volume method and refer to concrete class mixture table)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) How various properties of aggregates affect workability of concrete? b) If the peak load of concrete cylinder in compression is 70,000 pounds, find the crushing strength of concrete? (Hint: concrete cylinder dia is 6in). SIR, PLS GIVE ME PROPER AND CORRECT ANSWER WITH FULL DETAILS. SUBJECT: CONCRETE TECHNOLOGY