3. What is your recommendation for the maximum size of coarse aggregate for the following situation? A continuously reinforced concrete pavement cross section contains a layer of No. 6 reinforcing bars at 6-inch centers, such that the steel is just above mid-depth of a 10-inch- thick slab. Cover over the top of the steel is therefore about 4 inches.

3. What is your recommendation for the maximum size of coarse aggregate for the following situation? A continuously reinforced concrete pavement cross section contains a layer of No. 6 reinforcing bars at 6-inch centers, such that the steel is just above mid-depth of a 10-inch- thick slab. Cover over the top of the steel is therefore about 4 inches.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter20: Design Of Rigid Pavements

Section: Chapter Questions

Problem 1P: Portland cement concrete consists of what four primary elements?

See similar textbooks

Similar questions

Portland cement concrete consists of what four primary elements?
What is your recommendation for the maximum size of coarse aggregate for the following situation? A continuously reinforced concrete pavement cross section contains a layer of No. 6 reinforcing bars at 6-in. centers, such that the steel is just above mid-depth of a 10-in. thick slab. Cover over the top of the steel is therefore about 4 in.
What is your recommendation for the maximum size of coarse aggregate forthe following situation? A continuously reinforced concrete pavement crosssection contains a layer of 19-mm reinforcing bars at 150 mm. centers, suchthat the steel is just above mid-depth of a 250 mm. thick slab. Cover over thetop of the steel is therefore about 100 mm.
What is the relationship of rodded bulk density to percentage voids in aggregates? What is the purpose of this two? How can this two affect the concrete
What is maximum capacity of measure should be used in determining the density of the concrete if the nominal maximum aggregate size of coarse aggregate is 25.0 mm?
Why angular and rough aggregate is good for Asphalt concrete? Explain the answer by relating the texture to other properties of aggregate.
9 Why should alkali content of cement be limited when active aggregate is used in the construction? please quickly
A concrete mix with a 3-in. slump, w/c ratio of 0.50, and sand with a fineness modulus of 2.4 contains 1700 lb/yd3 of coarse aggregate. Compute the required weight of coarse aggregate per cubic yard. To adjust the mix so as to increase the compressive strength, the water–cement ratio is reduced to 0.45. Will the quantity of coarse aggregate increase, decrease, or stay the same?Explain your answer.
State the job mixing formula done in soil reinforcement with plastic fiber in road subgrade?
Using the following data for an unreinforced PCC Pavement slab: ▪ Design Strength f`c = 4000 psi ▪ Slab thickness = 12” ▪ Standard deviation of f`c obtained from 20 samples = 200 psi ▪ Ignore any exposure requirement ▪ Use air entrained concrete ▪ Fineness Modulus of Fine Aggregates = 2.60 ▪ Maximum aggregate Size = 2” and nominal maximum aggregate size 1 ½ “ ▪ Bulk oven-dry specific gravity of Coarse Aggregate = 2.60 ▪ Oven-dry rodded density of coarse aggregate = 125 pcf Find the following: a) Required compressive strength b) Water-Cement Ratio c) Coarse aggregate amount (lb/yd3 ) d) If the w/c ratio is 10% reduced, will the quantity of coarse aggregate increase, decrease or remain the same? Explain your answer.
Q3: Discuss importance of sieve analysis test conducted on both fine and coarse aggregateQ4: Concrete cylinder placed in universal testing is subject to axial compressive load. Concretecylinder crushed at a load of 85 kilo pounds, calculate compressive strength of concrete. (Concretecylinder has 6 inches diameter and 12 inches height)
Given: wo=4280g, w1=4250g, w2=2750g. what is the specific gravity of the given coarse aggregate?