Three types of aggregate have sieve analysis as given below. Combine these types of aggregate to meet with specification and draw the specification limits with combined mix on semi-log chart below. Sieve Specif. Agg. A Agg. B Agg. C % (in) ½ (in) 100 80-100 100 100 100 77 100 100 3/8 (in) 70-90 57 94 100 No.4 45-65 22 81 100 No.8 No.30 33-47 18-29 2.8 1.1 66 49 100 100 No.50 13-23 0 36 98 No. 100 8-16 0 24 93 No.200 6-10 0 12 80

Three types of aggregate have sieve analysis as given below. Combine these types of aggregate to meet with specification and draw the specification limits with combined mix on semi-log chart below. Sieve Specif. Agg. A Agg. B Agg. C % (in) ½ (in) 100 80-100 100 100 100 77 100 100 3/8 (in) 70-90 57 94 100 No.4 45-65 22 81 100 No.8 No.30 33-47 18-29 2.8 1.1 66 49 100 100 No.50 13-23 0 36 98 No. 100 8-16 0 24 93 No.200 6-10 0 12 80

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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There are two sources of aggregates (A, B). A sample has been taken from both sources and measured their mass as shown in table below. Measurement Wet mass (9) Oven-dry mass (g) Aggregate A 500 480 Aggregate B 600 564 (a) Determine the total moisture content for the samples from both aggregate sources, respectively. (b) Determine the total moisture content for an aggregate blend with 30% of aggregate A and 70% of aggregate B.
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Determine the suitability of the aggregate, with the gradation tabulated below, for use in Portland cement concrete. Review the grain size distribution to determine if it meets all of the relevant specifications for use in concrete (i.e. gradation limits, fineness modulus and % fines). Refer to the specification for concrete aggregates (Table 7 – 10) below: Grain Size (mm) % Passing Cum %Retained 25 100 19 100 12.5 100 9.5 100 4.75 95 2.36 85 1.18 55 0.6 30 0.3 15 0.15 8 0.075 6
Design a Mix for the following Data. Specified strength = (99.5) MPa, Required Slump = 80 mmMaximum size of aggregate = 25 mm, FM of fine aggregate = 2.40Grading of aggregate as satisfied by ASTM C33 (American Society for Testing and Materials)SSD specific gravity of fine and coarse aggregate = 2.75Rodded bulk density of coarse aggregate = 1600 kg/cubic mAbsorption Capacity of coarse aggregate = 0.9 %Absorption Capacity of fine aggregate = 0.5 %Moisture Content of fine and coarse aggregate = 2 %Exposure Conditions = Normal
10. A sample of coarse aggregate weighs 1072 g when oven- dried, 1091 g when saturated surface-dried, and 667.6 g when submerged. Calculate the bulk specific gravity, apparent specific gravity, and absorption.
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4 pts Question 23 What is the fineness modulus of this aggregate? % Cumulative Retained Retained Mass 0% Sieve Size (US) (g) Retained Passing 1" 3/4" 1/2" 3/8" # 4 650 18.3 700 19.7 632 17.8 175 4.9 # 8 200 5.6 #16 W 150 4.2 #30 125 3.5 #50 331 9.3 #100 288 8.1 #200 250 7 Pan 50 1.4 Total 3551 O 5.20 O 1.57 O 3.89 O 6.50
Aggregates from three sources having the properties shown in the table below where blended at a ratio of 30:45:25 by weight. Determine the properties of the aggregate blend. (Please show me in direct solution)
Is it correct to say that the fineness modulus of aggregate B is 0.44 asumming aggregate B is a fine aggregate and also that the percent passing the 1.18mm, No. 16 sieve is 56%?
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If needed assume the unit weight of water to be 62.4 lb/ft3 a) A HMAC sample has the following volumetric properties (i) VMA = 0.1865 ft3and (ii)Volume of air = 0.0452 ft3 Compute %VFA. b) A HMAC sample has 140 lbs of aggregate with a bulk specific gravity of 2.65 and aneffective specific gravity of 2.71. Based on this information the volume of the absorbedasphalt is ________________ft3A compacted sample of hot mix asphalt concrete sample has a unit weight of 135 lb/ft3.c) The sample has an asphalt content of 5% (by weight). Assume no absorbed asphalt.The bulk specific gravity of the aggregate is 2.65, and specific gravity for the asphaltcement is 1.05. Based on this information compute VMA for this mixture.
Sieve analysis test for fine aggregates was performed on a sample of fine aggregates and produced the following results: a. Calculate the percent passing through each sieve. b. Plot the percent finer in a semi-log gradation chart. c. What is the maximum aggregate size of the sample? d. What is the nominal maximum aggregate size of the sample? e. What is the fineness modulus? Is it in typical range? " Sieve Size, 9.5 4.75 3.35 2.36 2.00 1.18 0.85 0.60 0.425 0.30 0.25 0.18 0.15 (No. 0.075 Pan mm (in) (3/8) (No. 4) (No. 6) (No. 8) (No. 10) (No. 16) (No. 20) (No. 30) (No. 40) (No. 50) (No. 60) (No. 80) 100) (No. 200)| Amount 25 59 75 86 115 136 169 192 225 198 173 112 90 33 12 Datained.