Concrete Technology Lab HWBelow the results of rebound number shown in table 1 for a little thick wall,calculate the approximate compressive strength:Table 1: Rebound Number readsNo.1 2 3 4 56 7 8 9 10 11 12 13 14 15RN reads 50 40 43 52 47 54 46 20 48 51 44 46 25 50 53Beton-Prüfhammer N/NR Scléromètre à béton N/NR. Concrete Test Hammer N/NR70[605040302010203525 30Rückprall R Rebondissement R.Druckfestigkeit (Würfel 200 mm)Résistance à la compression (cube de 200 mm)Compressive strength (cube of 200 mm)Wm N/mm²40Rebound R*Betonalter 14 bis 56 TageAge du béton 14 à 56 joursAge of concrete 14 to 56 daysCOPYRIGHT BY PROCEQ SA ZURICH45 50 55Fig. 1

Answered: Image /qna-images/answer/12731a4a-52d2-4dbb-b4ea-213a4b77f996.jpg

Concrete Technology Lab HW Below the results of rebound number shown in table 1 for a little thick wall, calculate the approximate compressive strength: Table 1: Rebound Number reads No. 1 2 3 4 5 6 7 RN reads 50 40 43 52 47 54 46 20 8 9 10 11 12 13 14 15 48 51 44 46 25 50 53 *

Concrete Technology Lab HW Below the results of rebound number shown in table 1 for a little thick wall, calculate the approximate compressive strength: Table 1: Rebound Number reads No. 1 2 3 4 5 6 7 RN reads 50 40 43 52 47 54 46 20 8 9 10 11 12 13 14 15 48 51 44 46 25 50 53 *

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: How to get the value of compressive strength of concrete f'c, given the nominal shear stress on…

A: given nominal shear stress on concrete-fv=0.88 MPato find-compressive strength of concrete f'c

Q: PROBLEM: Determine the crack width of the following given beams: Take Bh = 1.20, fy = 414 MPa and…

Q: 1.What are the four main factors influencing the shear resistance of the masonry?

A: Note:- Hi! Thank you for the question As per the honor code, We’ll answer the first question since…

Q: Example 2: A cantilever beam, 50 mm wide by 150 mm high and 6 m long, carries a load that varies…

Q: 2. For the following section assume concrete with compressive strength of 5,000 psi and rein: steel…

Q: ncrete in terms of cube strength. (Use the related charts provided at

A: as per IS:8900, Clause 5.1.1(TESTS FOR TWO OR MORE OUTLIERS , AT LEAST ONE OUTLIER AT EACH END, 16…

Q: Consider an inner beam-column joint in the ground floor roof of a eight storey building in Noida,…

Q: Masonry brickwork has a density of 149 Ib/ft³. Determine the maximum height(FT) of a brick wall if…

Q: Are formulas 1 and 2 true only for the image above? Can these formulas be used for any section and…

Q: f brick is (11x7x23) cm. Unit Quantity Item Exterior Brick m3 ? Mortar 1:4 m3 ? Cement Kg Sand m3 ?

Q: parts 4-6

A: The cross section is given as

Q: A hollow concrete masonry unit has actual dimensions of 7-5/8" x 7-5/8" x 15-5/8". If the unit fails…

A: Given: The width of hollow concrete is 7-5/8 in. The height of hollow concrete is 7-5/8 in. The…

Q: Title: CRACK ANALYSIS OF BEAMS PROBLEM: Determine the crack width of the following given beams: Take…

Q: A Concrete Masonry Unit Wall is constructed as follows: • Length 8000 mm • Height 4000 mm . There…

Q: In order to estimate in-situ compress Estimate the compressive strength of

A: as per IS:8900, Clause 5.1.1(TESTS FOR TWO OR MORE OUTLIERS , AT LEAST ONE OUTLIER AT EACH END, 16…

Q: Compare the advantages and disadvantages of brick ma Name the various stages of manufacture of…

Q: n. brick is compressed lengthwise by a force P, as shown. If the ultimat stress is 3600 psi, what is…

A: Area for normal stress =4×2.5=10in2Area for shear stress =8×2.5=20in2

Q: In the computation of deflection, For all light weight concrete, the modification factor À is a.…

A: Light weight concrete is made by using less sand. Modification factor is a function of compressive…

Q: Given the following properties of the reinforced concrete beam shown, f, = 60,000 psi and fe = 4,000…

A: Given:- The strength of the steel (fy) = 60,000 psi The strength of the concrete (f'c) = 4,000 psi…

Q: Find the magnitude of distributed load w (lb/ft) that would result in flexural cracking of the…

A: In the problem, a (20'' x 10'' ) concrete section is given which is 14' long and subjected to a…

Q: 30 kip W = 2 kip/ft A В 10 ft. 20 ft. 30 ft. f. = 5000 psi 30 in. 36 in. 8 #9 bars 3 in. 3 in. 16…

A: Note-Since we answer one subpart at a time so we will answer the first three. Please resubmit…

Q: Determine the maximum live load that can be applied on one way slab shown in Fig. (1). The slab is…

A: One way slab Because of its geometry, the one-way slab is a slab that is supported by parallel walls…

Q: 2.14 Circle the correct statement(s) from the following: a) "Under-reinforced" beam condition…

A: This question is related to the Design Concrete Structure from Civil Engineering. This is Multiple…

Q: How to Calculate Concrete Volume? If it is a volume, then we know there must be 3 dimensions,…

A: Volume of concrete required for a slab can be determined easily if we know the length. Width and…

Q: What is the cracking moment of a H=400mm by W=300mm beam if the specified compression strength of…

A: Height of beam = H = 400mm or .4m Width of beam = W = 300mm or .3m The compression strength of the…

Q: Problem 1: A singly reinforced rectangular beam has a dimension b = 310mm and d = 410 mm. Factored…

Q: The results of an experiment to evaluate the effects of a water reducer are shown in Table P6.32. d.…

A: Water reducing Admixture: Water reducing admixtures are generally added to the mix proportion in…

Q: Q3- Three concrete beams were selected for flexural strength test. Results from tests are shown in…

Q: A standard 8 in. x 4 in. x 2.5 in. brick is compressed lengthwise by a force P, as shown. If the…

A: Area for normal stress =4×2.5=10in2Area for shear stress =8×2.5=20in2

Q: What are the factors responsible for the shear failure of a concrete beam without shear…

A: A concrete beam serve a vital role in supporting loads in various structural applications, and…

Q: Q:-A simply supported beam given below is prestressed by 1500 KN force. Modulas of rupture of…

A: Cracking moment denoted as (M cr ) is defined as the moment, which when exceeded causes the cracking…

Q: Figure3 Q3: A 400-mm-wide cantilever beam frames into the edge of a 400-mm-thick wall similar to…

Q: A 150mm x 150mm concrete specimen was tested for flexure strength over a span of 600mm. The load at…

Q: Problem 1 For the shown problem below with the given cross-sectional area (on the right) (1) Plot…

A: Since we can only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question…

Q: Determine the cracking moment Mcr for the beam depicted in Fig. 6.85. Assume normal-weight concrete,…

Q: 3. Per the following, are the breaks acceptable if the concrete is 4000 psi? Set 1 4110 4050

A: Compressive strength of concrete fck =4000 psiAcceptance criteria: No strength result falls below…

Q: determine the Concrete Shear Force and Critical Spacing of Stirrups to be adopted by the entire grid…

Q: 1. A short rectangular reinforced concrete column 500 mm wide by 700 mm deep contains 8-28 mm…

A: Note : Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: SIT. D: A simply supported beam 250 mm wide, 500 mm deep and spans 6 m supports service super…

A: Given:- The width of the beam = 250 mm The depth of the beam = 500 mm The length of the beam = 6 m…

Concept explainers

Design criteria for structural loading

The different loads such as loads due to self-weight (dead load) and external loads such as live load, wind loads, seismic load, snow load, and other loads and load combinations that influence the design of a building are called structural loading. The nature of the applied load differs from changes in the location, design, and type of materials used. The design criteria require that structures must be designed and constructed to be able to withstand all load types that are expected to act upon the structure and render its usage for the designated purpose. The structural members such as beams, slabs, columns, and foundations help the structure to withstand the applied load. There are different institutes such as ASCE and ACI that provide building design codes to assure minimum safety requirements and quality of the structures.

Question

Concrete Technology Lab HW
Below the results of rebound number shown in table 1 for a little thick wall,
calculate the approximate compressive strength:
Table 1: Rebound Number reads
No.
1 2 3 4 56 7 8 9 10 11 12 13 14 15
RN reads 50 40 43 52 47 54 46 20 48 51 44 46 25 50 53
Beton-Prüfhammer N/NR Scléromètre à béton N/NR. Concrete Test Hammer N/NR
70[
60
50
40
30
20
10
20
35
25 30
Rückprall R Rebondissement R
.
Druckfestigkeit (Würfel 200 mm)
Résistance à la compression (cube de 200 mm)
Compressive strength (cube of 200 mm)
Wm N/mm²
40
Rebound R
*
Betonalter 14 bis 56 Tage
Age du béton 14 à 56 jours
Age of concrete 14 to 56 days
COPYRIGHT BY PROCEQ SA ZURICH
45 50 55
Fig. 1

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

A standard brick (dimensions 8 in. x 4 in. x 2.5 in.) is compressed lengthwise by a force P, as shown in the figure. 8 in. 4 in. 2.5 in. If the ultimate shear stress for brick is 1,753 psi and the ultimate compressive stress is 4,300 psi, what force Pmax is required to break the brick? (Enter the magnitude in Ib.) Ib
Provide correct answer asap!! Figure shows that a hole must be drilled in a plate with a shear strength of 40 ksi. Compressive stress in the punch is limited to 50 ksi. calculate the thickness maximum of the plate in which a hole of 2.5 inches in diameter can be drilled.
A group of concrete cubes mixed with different water ratios .. The group with water ratio W / c = 0.3The maximum load was testedFailure causes every cube in the group Required:1- Finding the stress rate for each group in unit N / mm2 with discussing the results and the effect of the water w / c ratio on the compressive strength of the group.
Considering the nominal shear stress on concrete is f = 0.83 MPa. Calculate the allowable max spacing for 2-legged 10 mm stirrups? Use simplified calculation for Vc. Beam dimensions are 397 x 754 mm. Effective cover of steel reinforcement = 70 mm fy = 275 MPa Spacing should be in multiples of 10 mm. NOTE: USE STORED VALUES IN YOUR CALCULATION
A half-block concrete masonry unit is subjected to compression until failure.The outside dimensions of the specimen are 190 mm X 190 mm X 190 mm.The cross section is a hollow square with a wall thickness of 38 mm. The loadis applied perpendicular to the hollow cross section and the maximum loadis 296 kN.a. Determine the gross area compressive strength.b. Determine the net area compressive strength.
Calculate the uniform load w (in addition to the beam weight) that will cause the section shown to begin to crack if used as a 28-ft simply supported beam. Use normal weight concrete with L=4000 psi. f = 60,000 psi, E₁=29,000 ksi, and the reinforced concrete weight = 150 lb/ft³. 4 in. 28 ft 4 in. 22 in. 30 in. 2 in. 2 in. 3 #9 ● ||—12 in—-|
1.22 Calculate the design moment strength of the precast concrete section shown in Fig. 3.39 using = 4 ksi and f,= 60ksi. 589 20 19"
A rectangular footing 23 m x 32 m x 0.34 m thick supports a 300 mm square column at its center. Column loads are service conditions: DL = 341 kN LL = 216 kN fc = 21 MPa fy = 415 MPa Concrete cover to the centroid of steel reinforcement = 100 mm Calculate the nominal punching shear stress in the slab Write your final answer with 2 decimal places if the unit is MPA
Find the minimum theoretical width and height of a rectangular concrete section that will make the beam failure sufficiently ductile. Given: Two layers of 2-Ø25 mm bottom reinforcements fy=414 MPa f'c=35 MPa stirrup diameter=minimum required clear cover=minimum value for beam vertical clear spacing bet. Iayers=minimum value for beam height-to-width ratio=2.0 Note: Ductile failure occurs in beams when the extreme reinforcement layer is strained to 0.004 or greater.
Kindly select the correct answer with solutions or explanations
what would be the average compressive strength of concrete if the load at failure of the 3 trials are 55,100 kg 54,800 kg and 55,200 kg. Diameter of the sample is 6" a. 31.1 MPa b. 30.6 MPa c. 31.6 MPa d. 30.1 MPa
Explain the calculation of shear stress in flat slabs for interior column, edge column and corner column.