EXPERIMENT 2 SIEVE ANALYSIS OF AGGREGATES

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EXPERIMENT 2 SIEVE ANALYSIS OF AGGREGATES Name (SN, FN MI): Section: Group Number: Experiment Performed: Report Submitted: Instructor: Objective(s) COLLEGE OF ENGINEERING AND ARCHITECTURE CIVIL

1 EXPERIMENT 2 SIEVE ANALYSIS OF AGGREGATES Name (SN, FN MI): Section: Group Number: Experiment Performed: Report Submitted: Instructor: Objective(s) COLLEGE OF ENGINEERING AND ARCHITECTURE CIVIL ENGINEERING DEPARTMENT CE405 Construction Materials and Testing 1 st Semester SY The activity aims to introduce the basic principle, significance and procedures for the sieve analysis of aggregates (coarse and fine). Intended Learning Outcome(s) The students shall be able to: Familiarize the basic procedure for the sieve analysis of the aggregates (coarse and fine). Determine the particle size distribution of the coarse and fine aggregates. Characterize the aggregates according to predominant grain size. Background Sieve analysis is done to determine the grading and particle size distribution of a sample if it conforms to the specifications required to be used or being used as aggregates. The gathered data through this test can be used for further determination of properties of the aggregates. The sample passes through a set of sieves that has varying opening sizes which progressively become smaller upon reaching the pan at the bottom. The maximum size of the aggregates depends on the type of structure for which concrete is to be used. Most of the time, the aggregates have a uniform gradation. However, gapgraded aggregates provide better strength characteristics. In gapgrading, the sizes of aggregates do not decrease uniformly. Certain size segments are left out in order to obtain better packing and, hence, a more utilization of cement. Analysis of a material finer than Sieve 200 cannot be achieved through this method. Washing method stipulated by ASTM 117 is to be conducted. This experiment (methods or procedures to be used and done) is based on ASTM Designation C a Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates.

2 Resources 1 set of sieves 1 weighing scale 1 scoop or spoon 2 pans ½ bag of fine aggregates ½ bag of coarse aggregates 1 unit oven Procedure Preparation: 1. Gather separate sample of coarse and fine aggregates weighing at least 800 grams, put it in a pan and then weigh. 2. Wash then dry the sample to constant weight at a temperature of 110 ± 5 C; weigh after cooling to room temperature. The dry sample must have a minimum weight of 300 grams. 3. Use the dried sample for sieve analysis. 4. Prepare the sieve in decreasing order in which the largest opening at the top most. The pan is located at the bottom. Sieve Analysis: 1. Place the sample in the sieve at the top of the stack. 2. Shake the sieves well manually using hands or a mechanical shaker. 3. Weigh materials retained in each sieve. 4. Record all data. 5. Calculate the cumulative percentage passing of each sieve on the basis of ovendry weight of the original sample.

3 Data and Results Fine Aggregates Sieve Cumulative Mass Retained Specification Size Mass Remarks (g) % Retained % Passing % Passing (inch) Retained (g) 3 2 ½ 2 1 ½ 1 ¾ ½ 3/8 100 # # # # # # #200 Pan Mass of Sample: Mass of OvenDry Sample: Mass of Washed OvenDry Sample: Mass Retained at #200 Sieves: Moisture Content: Fineness Modulus*: *Calculate the fineness modulus, when required, by adding the total percentages of material in the sample that is coarser than each of the following sieves (cumulative percentages retained), and dividing the sum by 100: 150μm (No.100), 300μm (No. 50), 600μm (No. 30), 1.18mm (No. 16), 2.36mm (No. 8), 4.75mm (No. 4), 9.5mm (3 8in.), 19.0mm (3 4in.), 37.5 mm (11 2in.), and larger, increasing in the ratio of 2 to 1.

4 Opening, mm Particle Size Distribution: Percent Passing, %

5 Coarse Aggregates: Sieve Cumulative Mass Retained Specification Size Mass Remarks (g) % Retained % Passing % Passing (inch) Retained (g) 3 2 ½ 2 1 ½ ¾ ½ /8 015 #4 05 #8 #16 #30 #50 #100 #200 Pan Mass of Sample : Mass of OvenDry Sample: Mass of Washed OvenDry Sample: Moisture Content: Maximum Nominal Size:

6 Opening, mm Particle Size Distribution: Percent Passing, %

7 Analysis Conclusion Recommendation

8 Assessment Criteria Score I. Experiment Conduct The entire Skips more than Skips one or two Performs all the Experimental experiment is not two steps in this step(s) in this steps in the Setup done at all. experiment. experiment. experiment. Correct Practice Safety Precautions II. Work Habits Time Management Cooperative and Teamwork Neatness and Orderliness III. Report Data and results Analysis and Conclusion Does not demonstrate the correct way/s of doing the required steps. Does not follow safety precautions. Not able to finish on time with no data gathered. Has not performed the experiment Messy workplace during and after Does not present any data and result. Provides no analysis and conclusion about Demonstrates only one or two steps correctly. Follows safety precautions most of the time. Not able to finish on time with incomplete data. Does not know his/her tasks or has no defined responsibility. Group conflicts are not managed well. Messy workplace during the experiment yet clean and orderly workplace after Data and results are incomplete and presentation is disorganized. Provides unclear, not logical, unintegrated observation and conclusion about Demonstrates only some of the required steps correctly. Follows safety precautions most of the time. Finishes on time with incomplete data. Has a defined responsibility most of the time. Group conflicts are cooperatively managed most of the time. Occasional mess during the experiment yet clean and orderly workplace after Data and results are wellrecorded but presentation is disorganized. Provides a good but not wellintegrated observation and conclusion about the experiment based from the data. Demonstrates all the required steps correctly. Follows safety precautions at all times. Finishes ahead of time with complete data and time to revise data. Does the tasks and has a defined responsibility at all times. Group conflicts are cooperatively managed at all times. Clean and orderly workplace at all times during and after the experiment. Data and results are wellrecorded and wellpresented with complete labels and can be easily understood. Provides a good and wellintegrated observation and conclusion about the experiment based from the data.

9 Recommendation Documentation Use of English language Note: Absent during laboratory period and laboratory report/s not submitted on time are both considered as zero (0). Reference Suggests no recommendation. No documentation. Uses English language with many grammatical errors. Provides a recommendation irrelevant to the subject matter. Presents incomplete record of the experiment in photos and video. Uses English language in the explanations made with few grammatical errors. Other Comments/Observations: Provides a good recommendation relevant to the subject matter. Presents a good record of the experiment in photos and video. Uses good English language in the explanations made. Total Score (Total Score) Rating= 33 Provides a good recommendation for the betterment of Presents a stepbystep, complete, welldocumented experiment in photos and video. Uses the English language proficiently in the explanations made. 100 ASTM Designation C a Standard Test Method for Sieve Analysis of Fine and Coarse Aggregates

EXPERIMENT 3 DETERMINATION OF SPECIFIC GRAVITY AND WATER ABSORPTION OF AGGREGATES

COLLEGE OF ENGINEERING AND ARCHITECTURE CIVIL ENGINEERING DEPARTMENT CE405 Construction Materials and Testing 1 st Semester SY 2016-2017 EXPERIMENT 3 DETERMINATION OF SPECIFIC GRAVITY AND WATER ABSORPTION