Determine the normalised mean compressive strength (fo) for a masonry clay unit of Group 1, utilised in a masonry wall, with the following characteristics: (1) Characteristic compressive strength for the masonry, fk = 2.81 MPa. (2) M6 general purpose mortar. Select the correct answer from the list of the following possible answers. 5.46 MPa O 4.77 MPa O 5.67 MPa 8.56 MPa O 7.52 MPa

Determine the normalised mean compressive strength (fo) for a masonry clay unit of Group 1, utilised in a masonry wall, with the following characteristics: (1) Characteristic compressive strength for the masonry, fk = 2.81 MPa. (2) M6 general purpose mortar. Select the correct answer from the list of the following possible answers. 5.46 MPa O 4.77 MPa O 5.67 MPa 8.56 MPa O 7.52 MPa

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

Explain why we need to use the smooth surface of the cubes for compressive strength testing. What would be the strength reading if you have used cylinders instead? 6. Discuss the correlation of UPV in terms of compressive strength anf concrete quality? 7. Discuss possible errors leading to unsatisfactory results. What are the modifications that might help to resolve these errors? 8. In your own words, explain your observations on how w/c, admixtures and puzzolans influenced the strength of concrete
Problem 8.26 WD = 20 kN/m wj. = 36 kN/m 4 m concrete cover is 40 mm 6 #29 450 450 mm 70 mm 800 mm 730 mm For each of the problems, you must perform the following Recalculate the effective depth assuming concrete cover of 40 mm, and use only your calculated effective depth to answer the questions. Shear strength of concrete must be calculated using both the simplified and detailed methods of ACI318 Table 22.5.5.1. -Verity the spacing between main reinforcing bars satisfies AC1318 minimum spacing requirements. -Demonstrate the calculation of the shear forces needed to answer the questions including a fully labelled shear force diagram. The diagram must show the location within the span where 1) no shear force is required (if any), 2) minimum shear force is required (if any). Sketch (manual sketches OK) the beam and show the main reinforcement and distribution of shear reinforcement along the span, including distances where each spacing applies.
Please include all the steps
a Why is it important that the concrete masonry units meet certain absorption requirements?b. A portion of a normal-weight concrete masonry unit was tested forabsorption and moisture content and produced the following masses:mass of unit as received = 1.95 kgsaturated mass of unit = 2.13 kgoven-dry mass of unit = 1.91 kgimmersed mass of unit = 0.95 kgCalculate the absorption in kg/m3and the moisture content of the unit as a percent of total absorption. Does the absorption meet the ASTM C90 requirement for absorption?
Three standard mortar cubes were made using questionable water available at the job site, and three others were made using potable water. The cubes were tested for compressive strength after 7 days of curing and produced the failure loads in kN shown in the following table: Questionable Water Potable Water 56.19 63.17 53.13 65.01 52.56 60.06 The Vicat test was conducted on the cement paste made with the questionable water and showed that the set time is 1 hour more than the set time of paste made with potable water. Based on these results, would you accept that water for mixing concrete according to ASTM standards? Explain why.
The following sample concrete strength data (in ksi) were collected using an ultrasonic3.5 3.2 3.1 3.5 3.6 3.2 3.4 2.9 4.1 2.6 3.3 3.5 3.9 3.8 3.7 3.4 3.6 3.5 3.5 3.73.6 3.8 3.2 3.4 4.2 3.6 3.1 2.9 2.5 3.5 3.4 3.2 3.7 3.8 3.4 3.6 3.5 3.2 3.6 3.8b) Plot a histogram for concrete strength and discuss the characteristics. The number of bins can becalculated as √number of observationc) Plot a histogram for concrete strength and discuss the characteristics with 0.1 interval width
10
Consider the following data for concrete with mild exposure Water-cement ratio = 0.50 Water 191.6 litre The required cement content will be (a) 561 kg/m³ (b) 472 kg/m³ (c) 383 kg/m³ (d) 294 kg/m³
I need the answer as soon as possible
Determine the characteristic flexural strength for failure perpendicular to the bed joints of a masonry, which has the following characteristics: (1) Aggregate concrete masonry units of Group 2, with a thickness of 175 mm, and a (non-dimensional) declared compressive strength of 7.3 MPa. (2) M2 general purpose mortar. Provide your answer in MPa and with two decimal digits.
a Why is it important that the concrete masonry units meet certain absorption requirements? b. A portion of a normal-weight concrete masonry unit was tested for absorption and moisture content and produced the following masses: mass of unit as received = 1.95 kg saturated mass of unit = 2.13 kg oven-dry mass of unit = 1.91 kg immersed mass of unit = 0.95 kg Calculate the absorption in kg/m³ and the moisture content of the unit as a percent of total absorption. Does the absorption meet the ASTM C90 requirement for absorption?