Hardened Concrete Properties
The CIT Program provides the following methods for obtaining certification.
1. Hardened Concrete Properties Course
Online course - course is online and available upon registration. The course is available to you year round with the course period designated in your registration confirmation email and the CanvasPro course page. You must complete the course and subsequent exam(s) by the stated completion date in your confirmation email and in CanvasPro. Written and performance exams are administered in Salina, KS.
In Person course - three day course instructed in Salina, KS and written and performance exams are administered on the last day.
Prerequisite: Pass Basic Math test prior to enrolling for the course.
2. Hardened Concrete Properties Provisional Online Class & Exam
This option is for newly hired individuals who need this provisional certification to do hardened concrete properties testing over the summer months. The performance exam will need to be completed within the upcoming training season or within one year, whichever comes first. The performance exam must be completed at K-State Salina. Once the written and performance exams have been completed, the certification will start on the date of the performance exam. The written exam is administered online at the student’s location and requires an approved proctor. This option is not available for recertification.
Course Description
KDOT requires this course for persons who are sampling and testing hardened concrete cores, cylinders, or beams.
Instructor
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Kody Henrichs – District Staff Engineer Kody currently works as the District Staff Engineer at District 2 Headquarters where he oversees all things construction and materials related within the district. He earned his bachelor’s degree in Civil Engineering from Kansas State University in December 2019 and has worked at KDOT since January 2020. He began his KDOT career as an EA I in the Junction City Construction Office, working his way up to Project Engineer before taking his current position in August 2024. In that time, he worked as a field inspector on several projects while also designing numerous projects, including a $30 million concrete pavement replacement project on I-70 through Junction City. A self-proclaimed "concrete purist", Kody began teaching Hardened Concrete Properties in January 2024 and hopes to instill these principles in everyone he meets. When not working unhealthy amounts of overtime, Kody enjoys travelling, pursuing his passion for aviation, building Lego sets, and spending time with his family. |
Learning Objectives
- Cap a cylindrical concrete specimen.
- Use of unbonded caps to determine compressive strengths.
- Test the flexural strength of concrete.
- Test the compressive strength of concrete.
- Obtain cores for testing of concrete.
- Test the absorption of concrete using the Boil Test.
- Determine concrete strength by using a Maturity Meter.
- Review of concrete sampling and testing frequencies.
Course Material
Download the Hardened Concrete Properties workbook.
Performance Checklists
KT-23 Flexural Strength of Concrete (Third-Point Loading Method)
KT-49 Drilled Cores from PCCP and Precast Girders
KT-76 Method for Testing the Compressive Strength of Molded Cylindrical Concrete Specimens
KT-77 Method for Capping Cylindrical Concrete Specimens
KT-79 Surface Resistivity Indication of Concrete's Ability to Resist Chloride Ion Penetration
Testing Information
- Exam: This class and quiz-out options require a written exam and a performance exam. The exam with IA Witness option requires a written exam.
- Score: A score of 60% on each portion of the written exam plus a 70% overall score is required to pass the exam. Failure on any part of the written exam requires a full retest. If three or less performance subtests are failed, only the subtest failed must be retaken. If four or more subtests are failed, all performance subtests must be retaken.