CET 110 - Materials Testing

Credits: 3
Lecture Hours: 3
Lab Hours: 0
Practicum Hours: 0
Work Experience: 0
Course Type: Voc/Tech

Students will develop a working knowledge of sampling and testing basic materials used in the highway construction industry (aggregate and concrete). Iowa Department of Transportation materials certifications (AGG I, AGG II and PCC I) will be given to students upon successful completion of state certification exams given during the course.
Competencies

Describe the Iowa Department of Transportation?s Technician Training Certification Program
Define Aggregate Types and the Use of Each
Explain the principles of sampling Aggregates
1. Identify equipment needed for sampling
2. Discuss minimum frequencies for sampling
3. Identify size of sample needed for testing
4. Perform the correct procedure for sampling
Examine Aggregate Properties and Characteristics
1. Discuss general aggregate source information
2. Define deleterious materials
3. Understand resistance to abration
4. Discuss absorption and surface moisture
5. Understand specific gravity
6. Define the relationship between shape and surface texture, and performance
7. Understand gradation and its relevant specification structure
Perform critical aggregate laboratory tests
1. Perform splitting operations to take an aggregate sample from field size to proper test sample size
2. Perform method of test to determine the amount of material finer than the #200 sieve
3. Perform sieve analysis of aggregates for fine, coarse and combined aggregate test samples
4. Perform shale test for fine and coarse aggregates
5. Understand results of a Los Angelos Abrasion Test
6. Understand results of Soundness tests by freezing and thawing
7. Perform aggregate specific gravity test
Describe reporting requirements for Iowa DOT
1. Describe daily reports required to submit to districts
2. Describe daily reports required to submit to central Iowa DOT
3. Describe what makes up legal documentation for reporting
Describe plant inspection and tests performed on Portland Cement Concrete
1. Property sample freshly mixed concrete
2. Properly take temperatures of freshly mixed concrete
3. Perform the slump of hydraulic concrete test
4. Perform air content of freshly mixed concrete test by the pressure method
5. Make, protect and cure concrete flexural strength field specimens
6. Perform test of flexural strength of concrete using a simple beam with center-point loading beam breaker
7. Discuss making, protecting, curing and testing concrete cylinders
8. Discuss testing the strength of Portland Cement Concrete using the maturity method
9. Discuss the method of test for flow of grout mixtures

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