On which of the following is the working principle of concrete hammer for non-destructive test based? (a) Rebound deflections (b) Radioactive waves (c) Ultrasonic pulse (d) Creep-recovery
Q: A concrete cylinder of diameter 150mm and length 300mm when subjected to an axial compressive load…
A:
Q: . Calculate the cracking moment (max. resisting moment) for the unreinforced concrete beam shown.…
A: As per Bartleby's guidelines we are supposed to answer only first question.
Q: A center point loading is used to test concrete for flexure. The sample is 150mm x 150mm and has a…
A: To find flexure stress at failure
Q: choose the correct answer
A: A- 4 B- 2 c- 2
Q: The maximum applied load on cylindrical diameter 150 mm and length 300 mm a concrete specimen of…
A: Given: The diameter is 150 mm. The length is 300 mm. The applied load is 157 kN.
Q: In a ready-mix plant, cylindrical samples are prepared and tested periodically to detect any mix…
A:
Q: 1. In pre-stressed concrete application, the pre-stressing force is reduced with time because of: a.…
A: Solution: 1. In pre-stressed concrete application, the pre-stressing force is reduced with time…
Q: Cylinders which have been subjected only to field curing conditions prior to testing may be used to…
A: The given statement is: Cylinders which have been subjected only to field curing conditions prior to…
Q: 2. (a). Determine the cracking moment for the beam section shown. Use fc = 21 MPa. (b). What is the…
A: Hi! Thank you for the question As per the honor code, We’ll answer the first question since the…
Q: T 1. The "slump" test is used to determine the compressive strength of a concrete. F (F 2. For room…
A: Note:- I'm explaining the top three parts here. For all other parts kindly resubmit the question. 1.…
Q: At twelve days the modulus of rupture (MOR) test of a 6x12 cylinder is as shown on the table:…
A: Given, Cylinder diameter = 6 in Cylinder height = 12 in
Q: To evaluate the effect of a certain admixture on the flexure strength of concrete, two mixes were…
A: Solution Given data cross section= 0.15m *0.15m Span= 0.45 m
Q: To evaluate the effect of a certain admixture on the flexure strength of concrete, two mixes were…
A:
Q: FLEXURAL ANALYSIS CONCRETE UNCRACKED Problem: Determine the cracking moment for the section shown…
A:
Q: 2- The slump test is used for measurement the... a- compressive strength 3- Compressive strength…
A: 2. The slump test is used for the measurement of workability. Answer:- d Explaination:- The concrete…
Q: 6. Calculate the compressive stress in a 6-in.-diameter by 12-in.-high concrete test specimen if the…
A:
Q: Compression controlled failure in reinforced concrete beams as per NSCP 2015 is when the tensile…
A:
Q: removed? Calculate the coefficient of creep for normal strength concrete years. Assume the loading…
A: Members have residual creep strain even after removal of creep load cause : The residual strain is a…
Q: Both of the tension and compression forces are exerted on the concrete specimen when investigating…
A:
Q: A half-block concrete masonry unit is tested for compressive strength. Theoutside dimensions of the…
A: Given:- Outer size of specimen = 190 mmm * 190mm * 190mm Wall thickness = 25mm Maximum load = 225kN…
Q: To evaluate the effect of a certain admixture on the flexure strength of concrete, two mixes were…
A: Modulus of rupture in bending is the maximum stress at failure and in torsion is the maximum shear…
Q: Increasing the amount of sand in a concrete usually decreases the amount of water needed to make the…
A: Thank you for the question . As per honour code we are allowed to answer three sub parts at a time…
Q: Three 6 in. * 12 in. concrete cylinders with water to cement ratios of 0.4, 0.6,and 0.8,…
A: (a) For specimen 1. The expression for the compressive stress is given by, Substitute the value in…
Q: In flexure design, transition failure is when the steel tensile strain compatible with concrete…
A: The statement is termed as True one according to the ACI code.
Q: Compute the compressive strength, in psi, for each size of aggregate on each no. of days of curing.…
A: Given, Compressive strength test data for 3/8" and 3/4" aggregates
Q: LA reinforced concrete beam has a width of 300 mm, an effective depth of 500 mm and is reinforced…
A:
Q: Tensile strength of concrete is measured by (a) direct tension test in the universal testing machine…
A: Consider the given question Tensile strength of concrete is measured by (a) direct tension test in…
Q: Assuming concrete is un-cracked. Determine the cracking moment of the section. E, = 2*10°MPA E =…
A: Given data Width Elastic modulus Stress in concrete Number of bars Diameter Height
Q: In a ready-mix plant, cylindrical samples are prepared and tested periodically to detect any mix…
A:
Q: The maximum applied load cylindrical diameter 150 mm and length 300 mm on a concrete specimen of…
A: Given data: Diameter = 150 mm Length = 300 mm Maximum load applied = 157 kN = 157×103 N
Q: Consider the following strengths of concrete: 1. Cube strength 2. Cylinder strength 3. Split-tensile…
A:
Q: Determine the cracking moment Mcr for the beam depicted in Fig. 6.85. Assume normal-weight concrete,…
A:
Q: Why are concrete testing cubes and cylinders maintained at a specified range of temperatures during…
A: 1.Why are concrete testing cubes and cylinders maintained at a specified range of temperatures…
Q: In a ready-mix plant, cylindrical samples are prepared and tested periodically to detect any mix…
A:
Q: A normal weight cylindrical test sample with a diameter of 150mm and a 300mm height, is test in…
A: Given above data
Q: Item 1 A. Compute the bending stress in the extreme compression fiber of the beam in the figure for…
A:
Q: The properties of hardened concrete also affected by curing process. Analyze any possible defect…
A: Solution: When the concrete has not been cured properly then these properties are been affected:1.…
Q: It is the Standard Practice for Making and Curing Concrete Test Specimens in the Field A ASTM C192 B…
A: ASTM C192 is used for Standard Practice for Making and Curing Concrete Test Specimens in the…
Q: Cracking Analysis of Reinforced Concrete ANSWER A. TO G. COMPLETE SOLUTIONS -positive bending moment…
A: It means that if a concrete member, with reinforcement bars embedded in it, is pulled the strain…
Q: A half-block concrete masonry unit is tested for compressive strength. Theoutside dimensions of the…
A:
Q: A normal-weight concrete specimen tested at 28 days yielded the following results: (a) A 6 in.…
A: Given maximum load P=105000 lbf and dia of cylinder d=6 in=0.5 ftcross section area of testing…
Q: Determine the cracking moment (KN/M) and compressive stress felt by concrete (MPa). Show your…
A: Solution- Given,Concrete strength (fc') = 27.5 MpaDL =25.14 KN/mLL=11.4 KN/m
Q: If a water reducer is added to the concrete mix without changing other ingre-dients, what will…
A: The water reducer in concrete increases the workability of concrete. The workability of concrete is…
Q: 30mm fo= 27,5MPQ OL= 25.14 Km LL 11,4 Km 3-25 mm 6Oomm 4-25mmp Son 400 mm 180KN A Im r om
A: Concrete strength(fc)=27.5 Mpa Dead load(DL)=25.14 kN/m Live load(LL)=11.4 kN/m
Q: There are 3 factors that may be the cause of the production error in the reinforced concrete element…
A: Answer:- When we cast any section there are no error allowed, but there are some provisions given in…
Q: The concrete is assumed to crush at a strain of about O 0.02 O 0.03 0.003 Check
A: Concrete is assumed to crush at a strain
Step by step
Solved in 2 steps
- It is the Standard Practice for Making and Curing Concrete Test Specimens in the Field A ASTM C192 B None of the Above C) ASTM C191 D ASTM C143Determine the cracking moment (Kn/m) and compressive stress felt by concrete (MPa) shoe your step by step answer with solutionslump test compressive strength
- Increasing the amount of sand in a concrete usually decreases the amount of water needed to make the concrete workable. O A) True O B) False This non-destructive test method is typically used to isolate zones of poor-quality concrete prior to coring: OA Rebound hammer test O B) GPR OC) Penetration resistance OD) Pull-out test The density of a concrete column is 2380 kg/m^3 and the height of the column is 3.8 m. If the column is circular with a diameter of 250 mm, calculate the dead load of the column in kN. OA) 444 O B) 4.36 OC 4355 O D) 44.4 A concrete cylinder weighs 2096.6 when submerged in water and 3541.2 when weighed in air. What is the density of this concrete cylinder? OA) 2421 kg/m^3 O B) 2347 kg/m^3 OO 2258 kg/m^3 O D) 2451 kg/m^3what is tensile spilit test of geo polymer concretechoose the correct option pleaseSilica fume admixture increase concrete strength up to 60 MPa 120 MPa150 MPa200 MPa
- The maximum applied load cylindrical diameter 150 mm and length 300 mm on a concrete specimen of tested as per the split tensile strength test guidelines of IS 5816 : 1999 is 157 kN. The split tensile strength (in MPa, round one decimal place) of the off to specimen isCracking Analysis of Reinforced Concrete ANSWER A. TO G. COMPLETE SOLUTIONS Determinate Structure -cross-section form point A to C -compute reaction -draw shear and moment diagramThe flexural strength (fr) of concrete measured from the bending test is always higher than the direct tensile strength (ft). In reality, the stress in the cracked part of the concrete is lower than ft. Also, failure may occur on the compressive side. Assuming NO tension softening (i.e., the stress in the cracked part stays at ft) and infinite compressive strength (i.e., compressive failure will never occur), draw the stress distribution over the depth of the beam at ultimate failure when the curvature of the section is approaching infinity. With this stress distribution, show that the upper bound of fr/ft is equal to 3. (Hint: On rotating the section, because the compressive stress can increase well beyond ft, the neutral axis will continue to shift upwards.)
- The name of the test used to measure the consistency and workability of fresh concrete is called the _______________ test. slump unit weight air content temperatureEither it is desirable that concrete to have zero creep possibility. Explain in detailEstimate the transverse tensile strength of the concrete in Problem 12.6.