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 the concept of high-performance concrete. Discuss some of its properties that make it preferred over conventional concrete.Chapter 13 Question: What is the elasticity of concrete for a normal weight mix (unit weight equal to 150 pcf) with a compressive strength of 5,000 psi? O 3.644 ksi O 4.074 ksi 4,287 ksi O 3.976 ksi O 3,834 ksiCalculate the modulus of elasticity Ec of lightweight concrete that has a unit weight of 110 pcf and compare it to the modulus of elasticity Ec of a normal weight concrete. Both concretes have compressive strengths (f’c) of 4000 psi. Express the solutions in psi units. Please also explain why the values are different.
- Choose the correct answer One of the advantages of using concrete is. A-Low strength-to-weight ratio B-Volume instability C-Low maintenance. D-Low ductilityUrgent 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 GPaWrite the parameters that affect the compressive strength of concrete.
- Write four aggregate properties that affect the compressive strength of concrete. (3 P)Comparing PCC with mild steel, answer the following questions:a. Which one is stronger?b. Which one has a higher modulus or stiffness?c. Which one is more brittle?d. What is the range of compressive strength for a typical PCC?e. What is the compressive strength for a high-strength concrete?f. What would be a reasonable range for PCC modulus?Discuss the different types of concrete. a. Plain concrete vs reinforced concrete b. Fiber-reinforced concrete c. High-strength concrete d. Green concrete