Write four aggregate properties that affect the compressive strength of concrete. (3 P)
Q: .When depositing concrete
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Q: 2. Calculate the minimum beam width for the beam shown below. The clear cover to the stirrups on all…
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A: Given: The gross dimension of masonry unit is 190 mm x 190 mm x 190 mm. The failure load is 436 kN.…
Q: The design engineer specifies a concrete strength of 5575 psi. Determine the required average…
A: Given, Specifies concrete strength = f'c=5575 psi
Q: 6-What is the range value of compressive strength for normal concrete 7 days and 28 days?
A: "Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: A concrete masonry unit has actual gross dimensions of 7-5/8” * 7-5/8” * 7-5/8”. The unit is tested…
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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: 150 mm * 300 mm concrete cylinders were made of the same batch and sepa- rated at random to six…
A: Given: Cylinder dimension = 150mm * 300mm Diameter = 150mm Height = 300mm (Please refer images…
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: A concrete masonry unit has actual gross dimensions of 190 mm X 190 mm X190 mm. The unit is tested…
A: Given:- Gross dimensions of concrete masonry unit = 190 mm X 190 mm X 190 mm Failure load = 436 kN…
Q: Does fine aggregates suits concrete mixing
A: The goal of good concrete mix design is to blend aggregates to minimise the space between…
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: Q3: B: Design the concrete mix according to the following conditions: Design Environment Building…
A:
Q: Q1: The compressive strength of a (10×10×10) cm Cube is 20 MPa at 7-day, determine the flexural…
A: Compressive strength of concrete at 7 day= 20 MPa compressive strength at 7 day=65% of Full…
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: According to ASTM C33 Standard Specification for concrete Aggregates, what is the maximum size…
A: According to ASTM C33 : The maximum size is defined as , in sieve analysis , for which the 100% pass…
Q: Consider the following statements: The effect of an air entrainment in concrete is to 1. increase…
A: Air entrainment in concrete : Increased workability Increased resistance to freezing and thawing…
Q: FLEXURAL ANALYSIS CONCRETE UNCRACKED Problem: Determine the cracking moment for the section shown…
A:
Q: 6. Calculate the compressive stress in a 6-in.-diameter by 12-in.-high concrete test specimen if the…
A:
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…
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Q: On the 28th day after concrete was mixed, a 6.00-in-diameter concrete cylinder failed in a…
A: Given data, Diameter of cylinder d = 6 in Compressive load P = 145000 lb Factor of safety γ0 = 5
Q: Describe effect of height to diameter ratio on concrete stremgth
A: Effect of H/D ratio on the strength of concrete. H/D ratio is height to diameter ratio used to make…
Q: MAKE A CONCLUSION ABOUT THE SPECIFIC GRAVITY OF CEMENT
A:
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: Discuss the rate of concrete drying shrinkage at different ages with diagram.
A: Brief concept- Drying Shrinkage- When the water content gets reduced, the change in the dimensions…
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: 9) Two cylindrical specimens, made up of the same concrete, with the following dimensions: Diameter…
A: Given: The dimensions of the two cylinders are shown in the below table: Diameter (cm)…
Q: A concrete masonry unit has actual gross dimensions of 7-5/8 inch.*7-5/8 inch.*7-5/8 inch. The unit…
A: Given: Gross dimensions = 7-5/8” x 7-5/8” x 7-5/8” Failure load = 110 kips Net volume = 366.2 in3
Q: Write three aggregate properties that affect compressive strength of concrete.
A: Properties of the aggregate that affects the compression strength are as follows: Size of aggregate…
Q: A concrete masonry unit has actual gross dimensions of 190 mm X 190 mm X190 mm. The unit is tested…
A:
Q: 8) Calculate the maximum aggregate size for a concrete to be used for the beam the cross-section of…
A: Aggregate, in building and construction, is used to mix with cement, asphalt, lime, gypsum or other…
Q: A hollow concrete masonry unit has actual gross dimensions of 190 mm * 190 mm* 390 mm (width *…
A: Gross area =190×390=74,100mm2Net area =Vh=6106190=31,578.947mm2
Q: 1. Explain why increasing the water content produces a weaker concrete. 2. What is heat of…
A:
Q: Q.2 If the (010×10) cylinder compressive strength of O.P.C. concrete at 10-day is (14 MPa).…
A: Given data- Compressive strength of the cylinder @ 10 days=14 MPaTo Find-The compressive strength of…
Q: According to ASTM C33 Standard Specification for concrete Aggregates, what is the nominal maximum…
A: Nominal maximum size: The minimum size through which the entire aggregate passes
Q: Estimate the modulus of elasticity and the shear modulus of a concrete specimen with a dry density…
A: Estimate the modulus of elasticity and the shear modulus of a concrete
Q: Q2 c Discuss three (3) common concrete problems due to improper concreting works that can affect…
A: Given : Common concrete problems.
Q: Four 150*300 cylindrical specimens were made from a concrete mix. Specimens were tested for 7 days…
A:
Q: What is the dimension b and d of the specimen in mm?
A: given= a concrete specimen with equal sides having a span of 600mm and carrying a load of 100kn.…
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: Q3) describe the sieve analysis of aggregates with all details?
A: The sieve analysis determines the gradation (the distribution of aggregate particles, by size,…
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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- Problem 2: If f = 3 ksi what is the modulus of elasticity Ec and the maximum tensile stress fr that the concrete can carry before cracking (use ACI recommended equations). Assume a unit weight of the plain concrete is: a. Wc = 90- b. w lb lb 118- ft39 ft3) C. W = 160- Problem 3: Wight 3-6 Rugblom 4: Wight ? 7 lb ft3a) Calculate the temperature of aggregates to produce fresh concrete having the sametemperature with the ambient temperature. Following data in Table 1 could be used: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 ksi
- 6. Discuss the different types of volume change in concrete at early and long-term ages.Literature review of workability of concreteA concrete mix includes the following ingredients per cubic meter: a. Cement = 400 kg b. Water = 176 kg c. No admixture Table P6.30 shows possible changes that can be made to the mix ingredi- ents. Indicate in the appropriate boxes in the table what will happen in each case for the workability and the ultimate compressive strength as increase, decrease, or approximately the same.
- Why is reinforcing steel used in concrete? Discuss the typical properties ofreinforcing steel.The design engineer specifies a concrete strength of 5500 psi. Determine the required average compressive strength for:a. a new plant where s is unknownb. a plant where s = 500 psi for 22 test resultsc. a plant with extensive history of producing concrete with s = 400 psid. a plant with extensive history of producing concrete with s = 600 psia. Write down three aggregate properties that increase segregation in concrete. b. Three of the properties that affect the bond between cement and aggregate and depend on aggregate. write one.