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TEXAS TECH UNIVERSITY DEPARTMENT OF CIVIL, ENVIRONMENTAL AND CONSTRUCTION ENGINEERING Lab Report Number: 02 Aggregates (I & II) CE 2201-Materials for Constructed Facilities (Spring 2024) Section: 303 Group Number 04 Members: Jordan Duarte
Israel Gonzales Riaz Ogunleye Holden Slaton Date: 03, 05 2024
ii Member Contribution Statement Jordan Duarte: Introduction, Results and Calculations Israel Gonzales: Theory, Conclusion Riaz Ogunleye: Discussion, Materials, Test Equipment Holden Slaton: Procedure, References
iii Table of Contents LIST OF FIGURES……………………………………..………………………………………..iv LIST OF TABLES………………………………………………………………………………..iv INTRODUCTION………………………………………………………………………………...1 THEORY………………………………………………………………………………………..2-4 TEST EQUIPMENT………………………………………………………………………………5 MATERIALS……………………………………………………………………………...………6 PROCEDURE…………………………………………………………………………………..7-8 RESULTS AND CALCULATIONS……………………………………..……………………9-14 DISCUSSION……………………………………………………………………………………15 CONCLUSION…………………………………………………………………..………………16 REFERENCES…………………………………………………………………..………………17
iv LIST OF FIGURES Figure 1: Particle Distribution Curve of Coarse-Grained Aggregate Sample
...............................
8 Figure 2: Particle Distribution Curve of Fine-Grained Aggregate Sample
..................................
12 LIST OF TABLES Table 1: Sieve Analysis for Coarse-Grained Aggregate Sample
...................................................
8 Table 2: Large Container Weights with and without Aggregates for Coarse-Grained Aggregate Sample
............................................................................................................................................
9 Table 3: Dried and Submerged Weight for Coarse-Grained Aggregate Sample
...........................
9 Table 4: Bulk Weight Results for Coarse-Grained Aggregate Sample
.........................................
9 Table 5: Sieve Analysis for Fine-Grained Aggregate Sample
......................................................
12 Table 6: Small Container Weights with and without Aggregates for Fine-Grained Aggregate Sample
...........................................................................................................................................
13 Table 7: Bulk Weight Results for Fine-Grained Aggregate Sample
............................................
13
1 INTRODUCTION The experiment performed was a sieve analysis on a sample of aggregates. This experiment's purpose was to determine the moisture content, bulk unit weight, specific gravity, and absorption on the same aggregate sample used throughout each test. Using this data calculated, a sieve analysis, particle distribution curve, and void ratio can be created to find more information about the aggregates used. With construction sites, a sieve analysis determines the soil mechanic properties which is an essential step to determine whether the ground is buildable on. As for specific gravity and absorption of aggregates, it is essential information for concrete mix designs used to improve properties such as strength and durability.
2 THEORY For this lab, the objective was to analyze aggregate samples using different metrics. These include bulk unit weight, moisture content, absorption percentage, fineness modulus. Moisture content: this is the amount of water present in each aggregate sample. This allows us to understand the amount of water held in the aggregate, which allows for analyzing the samples' useability and applications. Bulk unit weight: this is the weight of the volume of the sample. This provides an understanding of the density of the material. Saturated Surface Dry (SSD): this is the state of a sample that is achieved when the sample is soaked in water, then dried to the point that it looks dull, showing a removal of surface water from when it was submerged (SUB). Sieve analysis: this is the process of passing aggregate samples through different-sized stacked sieves. This gives a clear understanding of how much of each size is in the sample. We predict that there will be a decrease in passing percentage from 100% to 0% in sieve analysis. Multiple specific gravities were calculated for the specimen. These were Bulk specific gravity for the dry specimen, bulk specific gravity for saturated surface dry, and apparent specific gravity. The formulas for these calculations are listed below. Along with these calculations, after sieve analysis had been performed, a grain size distribution curve was created. The equation used to calculate the Moisture content is given below. ௐ
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Related Questions
lease type your solutions in the box below. Answers without solutions will not have any marks.
Students in the materials lab performed the specific gravity test and bulk unit weight and voids of aggregate on a sample of coarse aggregate and obtained the following data:
Mass of oven dried aggregate: 951 g
Mass of aggregate submerged in water: 603 g
Mass of saturated surface dry aggregate: 993 g
Find:
Bulk dry specific gravity of aggregate.
Find the absorption of aggregate.
If the dry rodded unit weight of aggregate found to be 1695 kg/m3 , calculate the percent voids between aggregate particles in this test.
We blend this aggregate with other aggregate with bulk dry specific gravities of 2.23. Calculate the bulk dry specific gravity of the blend if the blend proportion is 40:60.
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Elaborate/explain the scope and significance use in ASTM c70 - standard test method for surface moisture in fine aggregates
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Civil
Read properly
Q- Membersof the ACI Building Code committee conducted a study, and the results showed that the scatter in the modulus of elasticity did not support the use of a different or "more precise" formulation. As a result, the equation (Eci) can be applied generally. Calculations should be based on project mixture design test results if a project calls for a more exact estimation of the modulus of elasticity. Where f 0 ci is the strength of the concrete at the moment of transfer in psi and wc is the unit weight of the concrete in pcf, which is often taken to be 160 pcf for precast concrete and 150 pcf for cast-in-place concrete.
Members with post-tension
tensioning sequence affects elastic shortening in post-tensioned members. Tendons may be stressed to a maximum of 0.80 fpu, however the stress in the tendon right after seating must be 0.70 fpu or less.
Calculate the fES for elastic shortening losses.
arrow_forward
Please perform an experiment and provide a report on Specific Gravity and Absorption of Fine Aggregate and cover the following details -
ASTM Designation
Purpose
Significance and Use
Apparatus
Test Procedure
Analysis and Results
Report
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Instructions: Please provide complete solution and box final answer/s.
Problem:
As a materials engineer working for a highway department, what standard PG asphalt binder grade would you specify for each of the conditions shown in the table below. Show all calculations.
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A sieve analysis test was performed on a sample of fine aggregate and produced the results in Table below.
Calculate the percent passing through each sieve.
What is the maximum size?
What is the nominal maximum size?
What is the Fineness Modulus?
Plot the percent passing versus sieve size on a semi-log gradation size. (You can use Excel sheets or you can draw on a semi-log attached to page 3 of this assignment)
Sieve size (mm)
Amount retained (g)
Cumulative amount retained (g)
Cumulative percentage retained
Percent passing
12.5
0
9.5
21
4.75
104
2.36
79
1.18
78
0.6
51
0.30
78
0.15
82
0.075
39
pan
5
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Students in the materials lab performed the specific gravity and absorption test (ASTM C127) on coarse aggregate and they
obtained following data:
a. Dry weight = 3862.1 g
b. SSD weight = 3923.4 g
c. Submerged weight = 2452.1 g
1. Calculate the specific gravity values (dry bulk, SSD, and apparent) and the absorption of the coarse aggregate. (Answer in 3
decimal places)
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A laboratory technician performing a test on fine aggregates in accordance with ASTM C128 weighed
the pycnometer filled with water reading 1201.8 g on the scale. He then took 502.3 g sample in
saturated surface dry condition and poured into the pycnometer partially filled with water then filled it
up to the calibrated mark. The weight of the pycnometer containing water and sample is 1516.1 g.
After which he poured the content of the pycnometer in a drying pan and dried the sample in the
oven. The resulting weight of the sample after drying was 494.9 g. Compute the following:
a. Bulk Specific Gravity (oven dry)
b. Bulk Specific Gravity (SSD)
c. Apparent Specific Gravity
d. Absorption in %
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Write water absorption of Aggregate:
1-Introduction.
2-Procedure.
3- discussion .
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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
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a) How to prepare samples and perform thermal expansion tests ASTM E831?
b) how to perform tensile strength test ASTM E8 /E8M?
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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.
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2. A sample of fine aggregate weighs
501.2 g when SSD and 491.6 g when
OD. The flask weighs 540.6 g when
filled with water and 843.1 g when
filled with the aggregate sample and
water. Calculate the bulk specific
gravity, apparent specific gravity and
percent absorption.
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Name of a report STRENGTH OF MATERIALS LABORATORY COMPRESSION TEST Hi sir, I know your precious time will be taken, please get a report. I want you to explain to me one or two pages is enough for me, dear sir, by solving the last schedule, may God help you and grant you God bless you
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Using online resources, find the aggregate specifications for the state of California and identify the limitations for deleterious materials in aggregates used for asphalt concrete
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Please show your complete solution on a paper with FBD
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A sieve analysis test was performed on a sample of coarse aggregate and produced the results in Tablea. Calculate the percent passing through each sieve.b. What is the maximum size?c. What is the nominal maximum size?d. Plot the percent passing versus sieve size on a semilog gradation chart.e. Plot the percent passing versus sieve size on a 0.45 gradation chart.f. Referring to Table (ASTM C33), what is the closest size number anddoes it meet the gradation for that standard size?
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5.10 Samples of coarse aggregate from a stockpile are brought to the laboratory for
determination of specific gravities. The following weights are found:
Mass of moist aggregate sample as brought to the laboratory: 5,298 g
Mass of oven dried aggregate: 5,216 g
5.11
5.12
5.13
5.14
Mass of aggregates submerged in water: 3,295 g
Mass of SSD (Saturated Surface Dry) Aggregate: 5,227 g
Find
a. The aggregate bulk dry specific gravity
b. The aggregate apparent specific gravity
c. The moisture content of stockpile aggregate (report as a percent)
d. Absorption (report as percent)
Base course aggregate has a target dry density of 1917 kg/m³ in place. It
will be laid down and compacted in a rectangular street repair area of
600 m × 15 m × 0.15 m. The aggregate in the stockpile contains 3.1%
moisture. If the required compaction is 95% of the target, how many tons of
aggregate will be needed?
Calculate the percent voids between aggregate particles that have been com-
pacted by rodding, if the…
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Fly ash, which is among the mineral additives and used as a concrete additive;• Its use in dam concretes,• Its use in concrete design in hot and cold weather conditions,• Effects on the strength and durability of concrete,• Write your comments by evaluating the effects on the workability of concrete.Your opinion about these hennas is very important.
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What is the discussion about the
specific gravity experiment of
concrete (gravel) aggregates?
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Specific Gravity and Absorption of Coarse Aggregates
What are the possible discussion of observations for specific gravity and absorption of aggregate to observed values?
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5. Calculate the solid volume and percent of voids of an aggregate that weighs 111.2 pcf and has a
specific gravity of 2.62.
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is
5.10
only as specified by the instructor.
Samples of coarse aggregate from a stockpile are brought to the laboratory for
determination of specific gravities. The following weights are found:
Mass of moist aggregate sample as brought to the laboratory: 5,298 g
Mass of oven dried aggregate: 5,216 g dadeab terhib
Mass of aggregates submerged in water: 3,295 g
Mass of SSD (Saturated Surface Dry) Aggregate: 5,227 g
112
Find
a. The aggregate bulk dry specific gravity
b. The aggregate apparent specific gravity
c. The moisture content of stockpile aggregate (report as a percent)
d. Absorption (report as percent)
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(c) Table 1 shows the mass of fine aggregates used to conduct a specific gravity test. Calculate
the;
i) Dry bulk specific gravity
ii) SSD bulk specific gravity
i) Apparent specific gravity
iv) Aggregate absorption.
Table 1
Mass of Aggregate
600 g
SSD Mass of Aggregate
589 g
Mass of pycnometer with water
710 g
Mass of pycnometer with water and aggregate
1090 g
Mass of aggregate at cool temperature
498 g
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What makes sampling as the most important step in assuring the quality of the aggregates?
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8. What is the maximum allowable limit of Materials Finer Than 75 Mm (No. 200) Sieve in Coarse
Aggregates in % according ASTM C33?
9. What is the maximum allowable limit (in %) of clay lumps and friable particles in fine and coarse
aggregates?
10. What is the maximum allowable limit of loss (in %) of a coarse aggregate sample tested for abrasion
and impact in the Los Angeles Abrasion Machine?
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QUESTION 2
a) After concrete has been placed it should be consolidated either by hand tamping or by a small petrol engine, an electric motor and in some cases by compressed air. Three basic forms of vibrator are used in building works. These are the poker vibrator, vibration tampers and clamp vibrators. The contractor do not have any of the above mentioned vibrators, and will solicit the services of plant hiring firm to get one for the job. Having taken the decision to select any particular brand of vibrator, the contractor has now made up his mind to hire, instead of buying. Exposit on the benefits of hiring a plant. AP,9b) Realistic plant charges will allow several important management decisions to be taken as the logical results of scientific analysis. Determined the factors and decisions characterized the selecting of any particular plant for construction project. AN,6c) Theprocuringofmaterials,equipmentandservicesrequiredfortheoperationofabusiness,is essentially a service…
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What is the significance of "specific gravity and absorption of coarse aggregates" experiment?
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Related Questions
- lease type your solutions in the box below. Answers without solutions will not have any marks. Students in the materials lab performed the specific gravity test and bulk unit weight and voids of aggregate on a sample of coarse aggregate and obtained the following data: Mass of oven dried aggregate: 951 g Mass of aggregate submerged in water: 603 g Mass of saturated surface dry aggregate: 993 g Find: Bulk dry specific gravity of aggregate. Find the absorption of aggregate. If the dry rodded unit weight of aggregate found to be 1695 kg/m3 , calculate the percent voids between aggregate particles in this test. We blend this aggregate with other aggregate with bulk dry specific gravities of 2.23. Calculate the bulk dry specific gravity of the blend if the blend proportion is 40:60.arrow_forwardElaborate/explain the scope and significance use in ASTM c70 - standard test method for surface moisture in fine aggregatesarrow_forwardCivil Read properly Q- Membersof the ACI Building Code committee conducted a study, and the results showed that the scatter in the modulus of elasticity did not support the use of a different or "more precise" formulation. As a result, the equation (Eci) can be applied generally. Calculations should be based on project mixture design test results if a project calls for a more exact estimation of the modulus of elasticity. Where f 0 ci is the strength of the concrete at the moment of transfer in psi and wc is the unit weight of the concrete in pcf, which is often taken to be 160 pcf for precast concrete and 150 pcf for cast-in-place concrete. Members with post-tension tensioning sequence affects elastic shortening in post-tensioned members. Tendons may be stressed to a maximum of 0.80 fpu, however the stress in the tendon right after seating must be 0.70 fpu or less. Calculate the fES for elastic shortening losses.arrow_forward
- Please perform an experiment and provide a report on Specific Gravity and Absorption of Fine Aggregate and cover the following details - ASTM Designation Purpose Significance and Use Apparatus Test Procedure Analysis and Results Reportarrow_forwardInstructions: Please provide complete solution and box final answer/s. Problem: As a materials engineer working for a highway department, what standard PG asphalt binder grade would you specify for each of the conditions shown in the table below. Show all calculations.arrow_forwardA sieve analysis test was performed on a sample of fine aggregate and produced the results in Table below. Calculate the percent passing through each sieve. What is the maximum size? What is the nominal maximum size? What is the Fineness Modulus? Plot the percent passing versus sieve size on a semi-log gradation size. (You can use Excel sheets or you can draw on a semi-log attached to page 3 of this assignment) Sieve size (mm) Amount retained (g) Cumulative amount retained (g) Cumulative percentage retained Percent passing 12.5 0 9.5 21 4.75 104 2.36 79 1.18 78 0.6 51 0.30 78 0.15 82 0.075 39 pan 5arrow_forward
- Students in the materials lab performed the specific gravity and absorption test (ASTM C127) on coarse aggregate and they obtained following data: a. Dry weight = 3862.1 g b. SSD weight = 3923.4 g c. Submerged weight = 2452.1 g 1. Calculate the specific gravity values (dry bulk, SSD, and apparent) and the absorption of the coarse aggregate. (Answer in 3 decimal places)arrow_forwardA laboratory technician performing a test on fine aggregates in accordance with ASTM C128 weighed the pycnometer filled with water reading 1201.8 g on the scale. He then took 502.3 g sample in saturated surface dry condition and poured into the pycnometer partially filled with water then filled it up to the calibrated mark. The weight of the pycnometer containing water and sample is 1516.1 g. After which he poured the content of the pycnometer in a drying pan and dried the sample in the oven. The resulting weight of the sample after drying was 494.9 g. Compute the following: a. Bulk Specific Gravity (oven dry) b. Bulk Specific Gravity (SSD) c. Apparent Specific Gravity d. Absorption in %arrow_forwardWrite water absorption of Aggregate: 1-Introduction. 2-Procedure. 3- discussion .arrow_forward
- 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 45arrow_forwarda) How to prepare samples and perform thermal expansion tests ASTM E831? b) how to perform tensile strength test ASTM E8 /E8M?arrow_forwardIf 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.arrow_forward
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