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MindTap Construction for Spence/Kultermann's Construction Materials, Methods and Techniques, 4th Edition, [Instant Access], 4 terms (24 months)
4th Edition
ISBN: 9781305635289
Author: William P. Spence; Eva Kultermann
Publisher: Cengage Learning US
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Chapter 7, Problem 13RQ
What are the commonly used admixtures?
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A soil profile is shown in figure below. Calculate the values of ot, o', u at points A, B, C
and D. draw the variation of ot, o', u with the depth.
3m
Water table
2.5m
+
2m
D
Rock
Dry sand, e=0.52,
Gs=2.65
Sand, e=0.52,
Gs=2.65
Clay, w=45%,
e = 1.22
No chatgpt pls will upvote
Calculate steel quantity in kg for CF3, CF4,CF5, CF6 from foundation layout and other footing?
The depth of CF3, CF4,CF5 and CF6 are 50, 55,55 , 60 cm in order.
Both long and short bar for CF3, CF4,CF5 and CF6 are Y14@15c/c T&B, Y14@15c/c T&B, Y14@15c/c T&B, Y14@12c/c T&B in order.
2. Calculate quantity of flexible sheet from foundation layout?
Chapter 7 Solutions
MindTap Construction for Spence/Kultermann's Construction Materials, Methods and Techniques, 4th Edition, [Instant Access], 4 terms (24 months)
Ch. 7 - What are the basic ingredients in concrete?Ch. 7 - How does concrete cure and harden?Ch. 7 - What ingredients normally make up Portland cement?Ch. 7 - What are the designations for the different types...Ch. 7 - Prob. 5RQCh. 7 - How does the addition of air-entraining materials...Ch. 7 - What ingredients may be used in masonry cements?Ch. 7 - How does the fineness of the cement affect the...Ch. 7 - Explain how Portland cement should be stored.Ch. 7 - What natural aggregates are used in making...
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- A cylinder of fluid has dimensions of 0.2 ft in diameter by 0.45 ft high. If the weight of thefluid is 0.55 lb , determine the specific gravity and density of fluid.arrow_forwardDraw the shear and bending moment diagrams and find the immediate deflection for a simply supported beam of length 20 ft. with the same live load at ½ span and cross-section as the previous problem. Assume a reasonable Modulus of Elasticity and concrete self-weight. Hint: You may look online for typical concrete self-weights and compressive strengths. You may also use the ACI 318 Code equation for the Modulus of Elasticity shown below, and the supplied Design Aids.arrow_forwardProblem 4. A major transmission pathway of the novel coronavirus disease 2019 (COVID- 19) is through droplets and aerosols produced by violent respiratory events such as sneezes and coughs (Fig. 1). For the purpose of providing public health guidelines, we would like to estimate the amount of time it takes for these droplets to settle from air to the ground. The relevant parameters are the settling time (ts), the initial height of the droplets (H), gravitational acceleration (g), density of the droplets (pa), radius of the droplets (R), as well as dynamic viscosity of the ambient air (Pair). Use dimensional analysis and the Buckingham theorem to answer the following questions: 1. Find the independent dimensionless parameters using the table method. Then, express the settling time as a function of the other relevant parameters. Your solution should match the physical intuition that the settling time scales linearly with the initial height. 2. How would the settling change if the…arrow_forward
- Question 4 An engineer is assigned to design a 25-stories office building which has a building height of 75 m. Reinforced concrete shear wall system as shown in Figure Q1(a) is adopted to resist the lateral loads. The shear wall is of thickness t = 350 mm and length L = 8.5 m. Use the following data: Young's modulus of concrete E = 28 kN/mm² and the lateral load intensity w = 1.20 kN/m². Assuming the frontal width of the building façade is 15 m is facing the wind force which in turn transmitting the wind force to the shear wall system, estimate the total value of sway A at the roof level. Question 5 For the Shear Wall in Question 4, if the total ultimate gravity load of the building acted on shear wall is 6000 KN, using a partial factor of 1.2 for the wind load, calculate the stress on the extreme right corner of the shear wall at first storey level. (A) 9.46 mm (B) 189.26 mm (C) 14.20 mm (D) 141.95 mm STOREY FLOOR LEV Shear wall Figure Q1(a) (A) 3.228 N/sq mm (B) 14.029 N/sq mm 75 m…arrow_forwardQuestion 4 An engineer is assigned to design a 25-stories office building which has a building height of 75 m. Reinforced concrete shear wall system as shown in Figure Q1(a) is adopted to resist the lateral loads. The shear wall is of thickness t = 350 mm and length L = 8.5 m. Use the following data: Young's modulus of concrete E = 28 kN/mm² and the lateral load intensity w = 1.20 kN/m². Assuming the frontal width of the building façade is 15 m is facing the wind force which in turn transmitting the wind force to the shear wall system, estimate the total value of sway A at the roof level. Question 6 If the similar building in Question 4 is designed using rigid frame method is to be designed to ensure the sway is within the allowable limit. If the building width is B, and with the same building height H=75m. Using a rough estimation method, calculate the maximum allowable deflection A at the roof level. (A) 9.46 mm (B) 189.26 mm (C) 14.20 mm 町 141.95 mm 1ST STOREY FLOOR LEV. Shear wall…arrow_forwardWhat are the biggest challenges estimators' face during the quantity takeoff and pricing phases?arrow_forward
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