c) Define ẞ1 and find its value for a concrete with compressive strength fc' = 10000 Psi3000 Psi.and for concrete with compressive strength of fc' =

Answered: c) Define ẞ1 and find its value for a…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

a) Determine the ultimate strength of the concrete in lb/in b) Determine the allowable compressive stress with a factor of safety of 5.0 against ultimate strength. c) Determine the ultimate permissible load that the concrete can carry using the strength design method. Use a strength reduction factor of 0.60 against ultimate strength.
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 GPa
Three 100*200 mm cylindrical concrete specimens were tested for 28 days compressive strength and show 30.5 MPa, 29.6 MPa and 32.8 MPa compressive strength. a) What is the average compressive strength of this concrete? b) What is the approximate tensile strength of this concrete? c) What is the approximate modulus of elasticity of this concrete? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIU Paragraph Arial 10pt A v x² X, +, 田用国田用因 Ť } !!
Q2: (10 %) of concrete samples have compressive strength less than (30 mn/m2) and (20%) have strength greater than (36mn/m2), if the minimum acceptable strength is (28 mn/m2). What is the prob. that sample will have strength fess them the minimum (one unitin LS.D.=1}7
Calculate 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.
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?
150 mm * 300 mm concrete cylinders were made of the same batch and sepa- rated at random to six equal groups. The six groups of cylinders were sub- merged in water for different times before testing for compressive strength and the results are shown in Table P7.39. It is required to do the following: a. Determine the compressive strength at different curing times. b. Using an Excel sheet, plot the relationship between curing time and compressive strength. Label all axes and curves. c. Comment on the effect of curing time on the compressive strength. d. What is the approximate ratio between the compressive strengths at 7 days and 28 days? e. What is the approximate ratio between the compressive strengths at 28 days and 180 days?
A normal-weight concrete has an average compressive strength of 4500 psi.What is the estimated modulus of elasticity?
A normal-weight concrete has an average compressive strength of 31 MPa. What is theestimated modulus of elasticity?
Q1: The compressive strength of a (10x10x10) cm Cube is 20 MPa at 7-day, determine the flexural strength of this R.H.P.C concrete at the age of 14-day.
The results of a laboratory experiment to evaluate the effects of a plasticizer are shown below. a. Calculate the water-cement ratio in each of the three cases. b. Using water reducer, how can we increase the compressive strength of concrete without changing workability? Refer to the appropriate case in Table P6.32. c. Using water reducer, how can we improve workability without changing the compressive strength? Refer to the appropriate case in the table. TABLE P6.32 With Water Reducer Without Water Reducer Case 1 Case 2 Case 3 Cement content, kg/m³ 815 815 815 734 Water content,* kg/m³ 446 446 355 402 Slump, mm 50 100 50 50 Compressive strength, MPa 37.8 38.0 46 37.9 *Assume that the water content is above the saturated surface-dry (SSD) condition of the aggregate. d. Using water reducer, how can we reduce cost without changing work- ability or strength? (Assume that the cost of the small amount of water reducer added is less than the cost of cement.) Refer to the appropriate case in…
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

SEE MORE QUESTIONS

Recommended textbooks for you

Structural Analysis

Civil Engineering

ISBN:

9781337630931

Author:

KASSIMALI, Aslam.

Publisher:

Cengage,

Structural Analysis (10th Edition)

Civil Engineering

ISBN:

9780134610672

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Principles of Foundation Engineering (MindTap Cou…

Civil Engineering

ISBN:

9781337705028

Author:

Braja M. Das, Nagaratnam Sivakugan

Publisher:

Cengage Learning

Structural Analysis

Civil Engineering

ISBN:

9781337630931

Author:

KASSIMALI, Aslam.

Publisher:

Cengage,

Structural Analysis (10th Edition)

Civil Engineering

ISBN:

9780134610672

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Principles of Foundation Engineering (MindTap Cou…

Civil Engineering

ISBN:

9781337705028

Author:

Braja M. Das, Nagaratnam Sivakugan

Publisher:

Cengage Learning

Fundamentals of Structural Analysis

Civil Engineering

ISBN:

9780073398006

Author:

Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning

Publisher:

McGraw-Hill Education

Sustainable Energy

Civil Engineering

ISBN:

9781337551663

Author:

DUNLAP, Richard A.

Publisher:

Cengage,

Traffic and Highway Engineering

Civil Engineering

ISBN:

9781305156241

Author:

Garber, Nicholas J.

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS

c) Define ẞ1 and find its value for a concrete with compressive strength fc' = 10000 Psi 3000 Psi. and for concrete with compressive strength of fc' =