What is the purpose of adding alcohol in test method C173?. When is it necessary to consolidate concrete by vibration in test method C231? Discuss the process of vibration when placing and consolidating the sample.When rodding a layer of concrete in method C138, is it okay to hit the bottom of the measure? If not, how is it supposed to be done?

Hi! Thank you for the question As per the honour code, We’ll answer the first question since the…

Answered: rpose of adding alcohol in test method…

Engineering

Civil Engineering

rpose of adding alcohol in test method C173?

Fundamentals Of Construction Estimating

4th Edition

ISBN:9781337399395

Author:Pratt, David J.

Publisher:Pratt, David J.

Chapter11: Pricing Concrete Work

Section: Chapter Questions

Problem 4RQ

See similar textbooks

Related questions

Q: A confined aquifer has a hydraulic conductivity of 100 m/day. The porosity of the aquifer is 0.3.…

Q: X Your answer is incorrect. The simply supported beam consists of a W21 x 44 structural steel…

Q: A double tee cross section is used for the beam shown below. Assume the following lengths and loads:…

Q: I03 The floor beam system shown in Fig (1), 3m carries a live load of w =6 KN / m2, 0.3 in…

Q: Solve the forces in the following system, and determine the area of each bar such that the stress in…

Q: Show complete solutions and figures A rectangular dam having a width of 14.8 m has a height of 23.2…

Q: Calculate the braking distance in meters, of a car traversing a highway at a speed equivalent to 52…

Q: The canal shown below is laid on a slope of 0.00028. When it reaches a railroad embankment, the flow…

A: Embankment : A road, railway line, or canal is typically lifted onto a compacted dirt embankment to…

Q: testing of tensile properties for reinforced steel

Q: At a point on the free surface of a stressed body, a normal stress magnitude of S, = 51 MPa (C) and…

A: Maximum shear stress = 64 MPa. Since we know that maximum shear stress =…

Q: Compute the total unit weight, dry unit weight, water content, and saturated unit weight of the soil…

A: Compute the total unit weight, dry unit weight, water content, and saturated unit weight of the soil…

Q: From the beam shown below, determine the maximum deflection and maximum slope of the beam. Find also…

Q: For V = 22 kip, determine the shear force resisted by the web of the beam (in kip). Express your…

Q: What flows through a 0.305m vertical pipe downwards at a rate of 1.70 x 10^(-4) m^3/s exiting into…

A: V=1.28m/s d=0.013m

Q: Rainfall of 2.50m per annum falls on a strip of land 1km wide lying between two parallel canals, one…

A: The given data is shown below: Rainfall=2.5m per annumWidth of land=1 kmDepth=10 mCoefficient of…

Q: A closed cylindrical tank containing a pressurized fluid has an inside diameter of 504 mm and a wall…

Q: A floor opening in a building is to be closed by pouring a concrete slab. The proposed framing is…

A: To find out the maximum Flexural stress and maximum shearing stress.

Q: A water tank, 24 ft in diameter, is made from steel plates that are 2 in. thick. Find the maximum…

Q: y 0.40h 59° 59° - x Answer: ỹ = i h Save for Later Attempt

Q: The simply supported beam consists of a W21 x 44 structural steel wide-flange shape [E = 29,000 ksi;…

Q: Q2: From the following excerpt of field notes, plot the cross section on graph paper and superimpose…

A: Method of Coordinates : The "Method of Coordinates" is a method for converting geometric images into…

Q: For the beam and loading shown, use the double-integration method to determine (a) the equation of…

Q: LINES DISTANCE (m) BEARING LATITUDE DEPARTURE DPD DOUBLE AREA AB 32 S 39°25' W |-24.쾌 -00.814 S…

A: The values and table given in the question are as follows:

Q: Partition A. Determine the reactions for typical interior joist in the floor framing system that…

Q: pove the bottom of the beam f. = 35 MP Reinforced indices for the beam Safe ultimate moment capacity…

A: Given:- 300mm x 500mm span=5m f'c=35MPa Aps=1200mm2 To find:- a) Reinforced indices for the beam b)…

Q: (a) Axial force in x direction P, (N) (b) Shear force in y direction Vy (N) (c) Shear force in z…

A: Bending moment: - It is a bending reaction induced in element due to external force applied to…

Q: If the allowa ble stresses are :- 150 mm Bt = 165Miu,'sc =100MPA, T=7014 Par determinet mex. value…

Q: Component Pump 60 m Water 2)

Q: built-up wooden beam section is made of two 58 mm x 104 mm sections glued on the lower sides of a…

Q: 5.6" 7.4" 7.3" Answers: i in. y = in. ミ= i in.

Q: Determine the shear capacity of the steel reinforcement if Vu = 236 kN Determine the required…

A: Shear capacity: - It is defined as the ability of beam to resist forces which will cause failure of…

Q: Calculate the increase in stress in each segment of the compound bar if the temperature is increased…

Q: The Scotch-yoke mechanism converts rotational motion of the disk to oscillatory translation of the…

A: Determine the velocity and acceleration of point P of the shaft.

Q: For the beam and loading shown, use the double-integration method to determine (a) the equation of…

Q: Estimate the constant rate of withdrawalfrom a 1375 Ha reservoir in a month of 30days during which…

A: Data is as given

Q: For the given data of a close traverse, determine the missing bearings of course CD and DE solve the…

Q: 17. Dental implants are metal fixtures, typically a threaded stud (screw) surgically fastened to…

A: Convert 35 N-cm torque to lb-inches 1N= 0.2248089431 lb 1 cm= 0.393701 inches 35 N-cm=…

Q: Problem 1 From the given force shown, a force P = 115 Ib is acting at 20° from the horizontal axis.…

Q: For the beam shown, . draw sFD and BMD, b. prove that for the isosceles:, Gmax. = C. if dal =120MP9,…

Q: A Dam can be approximated as a barrier with a vertical face that is 32.09 m in height and has a…

Q: The average speed (in feet/second) of blood that flows in the needle if the piston being vithdrawn…

Q: P1. Volume Computation using Contour Method The great Lake Buwis was surveyed by Engr. Guanzon. The…

A: Contour method 2D residual stresses are measured using the contour approach. A flat surface is used…

Q: 17. Dental implants are metal fixtures, typically a threaded stud (screw) surgically fastened to…

A: Convert 35 N -cm torque to lb-in 1 N= 0.224809 lb 1 cm= 0.393701 in 35 N-cm= 35*0.224809*0.393701=…

Q: PART II: TEST ON HOLLOW BLOCK Question 6 One of the ASTM Designation for testing the quality of…

A: ASTM C40 deals with standard test methods for sampling and testing of concrete masonry units

Q: A non-uniformly distributed load is carry by a 12 ft cantilever beam. What is the value of the kips…

Q: Partition A. Determine the reactions for typical interior joist in the floor framing system that…

Q: ZC98m c 300 m 450-mm D 900 m,450-mm-D T-0030 1-0430 =78m 600m,600-mm-D 110.025 300 m 450-mm-D 600…

A: Discharge in pipe pipe Cj = 544 L/sec or 0.544 m3/sec Head loss through pipe =…

Q: Q2: From the following excerpt of field notes, plot the cross section on graph paper and superimpose…

Q: The simply supported beam consists of a W14 × 34 structural steel wide-flange shape [E = 29,000 ksi;…

Q: A circular steel tube of length L = 1.5 m is loaded in torsion by torques T (see figure). (a) If the…

A: INTRODUCTION: This is the case of circular section for twist to be applied which causes the shear…

Concept explainers

Pricing Concrete Work

The concrete work in a project usually holds a high-end cost in terms of cost and value of the work. It becomes an important step in calculating the cost associated with concrete while preparing the project scale. The cost of making concrete depends on the cost of building materials, mixed materials, labor, and machinery. A concrete contractor builds structures from concrete, usually managing all the steps of the process from assembling ingredients to building a holding structure and preparing the mixture. This person or team oversees the delivery and unloading of goods to ensure that they are done properly. Nowadays, most of the concrete in the United States comes from manufacturers working abroad, usually with branches and plants within the provinces. Contributions can range from pre-mixed concrete to basic ingredients, the consumer company then mixes it. Many American-based concrete companies, however, offer concrete products, such as ballads, bricks, countertop, concrete pipe, and building products, as well as concrete construction and installation materials. This article covers both types of suppliers for this set of building materials.

Question

What is the purpose of adding alcohol in test method C173?
. When is it necessary to consolidate concrete by vibration in test method C231? Discuss the process

of vibration when placing and consolidating the sample.
When rodding a layer of concrete in method C138, is it okay to hit the bottom of the measure? If not,

how is it supposed to be done?

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 Solution:-

VIEW

Step 2 Solution:-

VIEW

Step by step

Solved in 2 steps

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. When is it necessary to consolidate concrete by vibration in test method C231? Discuss the process of vibration when placing and consolidating the sample.b. When rodding a layer of concrete in method C138, is it okay to hit the bottom of the measure? If not, how is it supposed to be done?c. Calculate the yield of concrete if the mass of the batch is 4800 kg and its density is found to be 350 kg/m3.
Q: a) For what purpose we use Ultrasonic Pulse velocity test? Also classify the quality of concrete if Ultrasonic Pulse velocity is 3.0km/sec? b) Why and how rebound hammer is used for concrete? SIR, PLS GIVE ME PROPER AND CORRECT ANSWER WITH FULL DETAILS. THANKS
A. For what purpose we use Ultrasonic Pulse velocity test? Also classify the quality of concrete if Ultrasonic Pulse velocity is 3.0km/sec? B. Why and how rebound hammer is used for concrete?
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
Concrete Compressive Strength test Discussion: After concreting is completed, your project manager raises concern about the quality of theconcrete cast in the slab and instructs you to test the cylinder samples taken during the castingprocess in 7 days. What would be the acceptable 7 day compressive strengths of your samplesto give confidence to your manager that the 28 day target strength will be met?
Subject: Concrete Technology Q:1 a) For what purpose we use Ultrasonic Pulse velocity test? Also classify the quality of concrete if Ultrasonic Pulse velocity is 3.0km/sec? b) Why and how rebound hammer is used for concrete?
What is self-consolidating concrete? How are its properties achieved? Howare these properties measured?
The results of an experiment to evaluate the effects of a water reducer areshown in Table P6.32.a. Calculate the water–cement ratio in each of the three cases.b. Using water reducer, how can we increase the compressive strength ofconcrete without changing workability? Refer to the appropriate case inthe table.c. Using water reducer, how can we improve workability without changingthe compressive strength? Refer to the appropriate case in the table.d. Using water reducer, how can we reduce cost without changingworkability or strength? (Assume that the cost of the small amountof water reducer added is less than the cost of cement.) Refer to theappropriate case in the table.e. Summarize all possible effects of water reducers on concrete.
Three 150 mm * 300 mm concrete cylinders with water to cement ratios of0.4, 0.6, and 0.8, respectively. After curing for 28 days, the specimens weresubjected to increments of compressive loads until failure. The load versusdeformation results were as shown in Table P7.26. Assuming that the gauge length is the whole specimen height, it is required todo the following:a. The compressive stresses and strains for each specimen at each loadincrement.b. Plot stresses versus strains for all specimens on one graph.c. The ultimate strength for each specimen.d. The modulus of elasticity as the secant modulus at 40% of the ultimatestress for each specimen.e. The strain at failure for each specimen.f. The toughness for each specimen.g. Comment on the effect of increasing the water–cement ratio on thefollowing:i. Ultimate strengthii. Modulus of elasticityiii. Ductilityiv. Toughness. Curves may be approximated with a series of straight lines.
a. How does one obtain a concrete sample from a batch in accordance with ASTM C172?b. When is it necessary to perform wet sieving according to method C172?c. Test method C143 is applicable to plastic concrete having coarse aggregate up to 37.5 mm in size. Will it be possible to perform slump test if coarse aggregate used is larger than 37.5 mm? How?d. Briefly discuss the procedure for filling up the slump cone with fresh concrete sample.e. Which one among the test methods in determining air content of freshly mixed concrete is most appropriate to determine air content of concretes containing lightweight aggregates?f. What is the purpose of adding alcohol in test method C173?g. When is it necessary to consolidate concrete by vibration in test method C231? Discuss the process of vibration when placing and consolidating the sample.h. When rodding a layer of concrete in method C138, is it okay to hit the bottom of the measure? If not, how is it supposed to be done?i. Calculate the yield of…
Subject concrete technology Q: a)What particular precautions would you take when concreting (i) In winter, and (ii) in hot weather? b)What are the effects of hot weather on fresh concrete?
Two batches of cement mortar with properties as shown in Table P6.18. Ifmortar cubes are made from these batches, which batch do you expect to havelarger compressive strength? Why?