Question Two: The laboratory test data for a modified Proctor test and CBR test for (crushed limestone) are given below; Find the CBR value at 95% of MDD after necessary corrections, for the tested sample depending on Iraqi Specifications, R6 (after drawing the curve and stating your answer about which sort of sub-bases materials are used in highway construction? Table 1: CBR test data @56 blows -56 Blows Penetration (mm) 0 0.5 1 1.5 2 25 34 5 75 10 12.5 Load (Kg) 0 15 40 85 140 220 300 455 611 959 1120 1100 Table 2: MDD and CBR values for 10, 25 and 56 blows No. of Blows 10 25 56 MDD, gm/cm³ 1.95 2.07 2.2 CBR% 24 29 ? CBR% at 95% MDD ?

Question Two: The laboratory test data for a modified Proctor test and CBR test for (crushed limestone) are given below; Find the CBR value at 95% of MDD after necessary corrections, for the tested sample depending on Iraqi Specifications, R6 (after drawing the curve and stating your answer about which sort of sub-bases materials are used in highway construction? Table 1: CBR test data @56 blows -56 Blows Penetration (mm) 0 0.5 1 1.5 2 25 34 5 75 10 12.5 Load (Kg) 0 15 40 85 140 220 300 455 611 959 1120 1100 Table 2: MDD and CBR values for 10, 25 and 56 blows No. of Blows 10 25 56 MDD, gm/cm³ 1.95 2.07 2.2 CBR% 24 29 ? CBR% at 95% MDD ?

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

Ultrasonic pulse velocity (UPV) test in through transmission is applied on a concrete sample. If the travel path is 15 cm and transit time is 48 us, what is the UPV of this concrete sample? Comment on the quality of the concrete. a. 1550 m/s, very weak 2000 m/s, weak 3450 m/s, questionable O b. O C. O d. 5000 m/s, very good O e. 3125 m/s, questionable
Give me right answer according to the given choices. Urgent please
A materials engineer is working in a research project to evaluate the effect of one type of admixture on the compressive strength of concrete. He tested eight mortar cubes made with admixture and eight others without admixture after 28 days of curing. The compressive strengths of cubes in MPa with and without admixture are shown in Table P6.38. Using the statistical t-test, is there a significant difference between the means of the compressive strengths of the two cement mortars at a level of signifi- cance of 0.10?
Compressive Strength is conducted for each aggregate with 3 specimens for each no. of days of curing. The recorded maximum load when the specimen breaks are as follows 7 Days (kN) 14 Days (kN) 28 Days (kN) 746.3 754.7 486,73 678.8 3/8" Sample 513.14 694.2 360.71 679.8 759.8 7 Days (kN) 14 Days (kN) 28 Days (kN) 231.86 339.8 377.7 3/4" Sample 252.04 206.69 339.6 381.1 343.3 379.9 Compute the compressive strength, in psi, for each size of aggregate on each no. of days of curing. Please indicate if the sample passed the required strength for each no.of days of curing. Conversion: 1lb-f = 4.488 N Attach your solution on the box below, image type. Use the editor to format your answer
Discuss the results in the following graphs?
express your answers in the nearest three decimal numbers refer to MM = 08 and DD = 26
(c) Asphalt concrete mixture of AC 14 will be used to construct the wearing course layer. The coarse aggregate, fine aggregate and filler are used as materials to produce the asphalt concrete mixture. The aggregate gradation will be blended to fulfill the gradation limit according to JKR standard specification as shown in Table Q1(c)(i). Based on this statement, conclude the result of sieve analysis test of blended aggregate as shown in Table Q1(c)(ii). I Table Q1(c)(i): Gradation specification for AC 14 mixture BS Sieve Size (mm) Percentage passing by weight 28.0 20.0 14.0 10.0 5.0 3.35 1.18 0.425 0.150 0.075 100 90-100 76-86 50-62 40-54 18-34 12-24 6-14 4-8 I Act Go to
Sieve Analysis of Coarse Aggregates) Another group of students have gathered data for sieve analysis for another aggregate stockpile. Determine the percentages passing of each size and draw the grain size curve. Sieve Size Amount retained, g 1-1/2" 1" 315 782 3/8" No. 4 No. 30 No. 200 1493 677 1046 1502 Pan 45
What value of uniformly distributed live load w is required to produce initial cracking of the U- shaped cantilever beam shown in the figure below. The beam is constructed of normal weight concretewith f' 25MPaand f 420MPa.
A modulus of rupture test is conducted on an MgO refractory brick with the following data obtained: F = 7*10^4 N L = 175 mm b = 110 mm h = 75 mm If the designer were to reduce the height of the refractory brick to only h=64mm, what would be the new necessary load F to break the refractory? Your answer should be in units of Newtons (N).
5.14 Coarse aggregate is placed in a rigid bucket and rodded with a tamping rod to determine its unit weight. The following data are obtained: Volume of bucket = ¹/2 ft³ Weight of empty bucket = 20.3 lb Weight of bucket filled with dry rodded coarse aggregate: Trial 176.6 lb Trial 275.1 lb Questions and Problems 217 Trial 3 78.8 lb a. Calculate the average dry-rodded unit weight b. If the bulk dry specific gravity of the aggregate is 2.620, calculate the percent voids between aggregate particles for each trial.
(a) Describe three (3) pozzolanic materials that are being used increasingly by the construction industry as partial replacement for Portland cement in concrete? cs Scanned with CamScanner