Q5. The compressive strength of concrete specimen follows a normal distribution with a mean value of 2.8 ksi and Coefficient of Variation of 0.1. If the applied stress is 2.5 ksi, find the probability of failure.

Determine the permanent deformation after 2 hours show all work

A 150mm diameter cylindrical concrete specimen was tested for splitting tensile strength. The Sample failed when the applied force was 120 kN. What is the splitting tensile stress at failure in MPa? The sample length is 300mm

Part A Determine average normal stress. (Figure 1) Express your answer with the appropriate units. Javg = Part B μA Submit Request Answer Value σ1,02= 20 MPa IVD ΑΣΦ11 Units vec ww Determine the principal stress. Enter your answers numerically separated by a comma. ? 80 MPa 30 MPa www MPa

Quick answer.

Required information For the concrete beam shown, the modulus of elasticity is 25 GPa for the concrete and 200 GPa for the steel. Take b=218 mm and d = 450 mm. Use an allowable stress of 12.5 MPa for the concrete and 140 MPa for the steel. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. Using the area of steel calculated in part a, determine the largest allowable bending moment. The largest allowable bending moment is 96.06 kN-m.

A hot rolled steel tension test sample has a diameter of 6 mm and the original gage length of 30 mm. In a test to fracture, the stress and strain data below were obtained. Determine Generic Strain Value, %0.2 offset strain, and Calculated stress at %0.2 offset. Original diameter - 6mm Original Length - 30 mm Fracture diameter - 4.54 mm

please answer problem 2

8. A rigid pavement concrete slab is shown in the given figure. Determine the stress and also max. deflection due to corner loading h 10 in. k = 100 pci h 10 in, a = 6 in. 9. Repeat problem (8) for interior loading case as shown in the given figure: S k= 100 pci h = 10 in. k = 100 pci a = 6 in. a 6in. 10,000 lb %i 4₁ 10,000 lb 10. Repeat problem (3) for edge loading cases (Circular or semi circular) as shown in the given figure: 110,000 lb %c = ? D. ? e = ? = ? 11. A section of a highway with length of 10 Km was evaluated using the Pavement Condition Rating Methods. The existing distresses along with this section are presented in the given photos. The severity and extent levels of each distress are given with the photo of the specified distress. The PCR form rating is also given.