High Alkalinity Cement: The Use of High Alkalinity Cement in FDOT Class IV Concrete

• Other Authors: Beckwith, Lauren Ann (authoraut)
• Format: Others
• Language: English; English
• Published: Florida State University
• Subjects: Civil engineering
• Online Access: http://purl.flvc.org/fsu/fd/FSU_FA2016_Beckwith_fsu_0071N_12986

High alkali cements are not used in the state of Florida because of its supposed deleterious effects to concrete. The alkali-silica reaction forms a gel in the voids of the concrete and the increase in internal pressure created by the gel causes the concrete to crack. Other states across the United States have implemented the use of high alkali cements. The purpose of this research was to supply the Florida Department of Transportation an initial investigation of the effects high alkali cement in Class IV concrete. A total of twelve mixes, four control mixes and eight test mixes, were prepared and tested to compare the fresh and hardened properties. Class IV concrete has requirements that it must be met in order to be used in Florida and the goal of this research was to determine if the test mixes met these requirements. As it stands, the high alkali cement did appear to have an effect on the fresh and hardened properties of the concrete. A final conclusion was made that high alkalinity cements could be use but only with supplementary cementitious materials such as fly ash and slag. === A Thesis submitted to the Department of Civil and Environmental Engineering in partial fulfillment of the requirements for the degree of Master of Science. === Summer Semester 2016. === July 12, 2016. === ASR, Class IV Concrete, Concrete, FDOT, High Alkalinity Cement === Includes bibliographical references. === Kamal Tawfiq, Professor Directing Thesis; Michelle Rambo-Roddenberry, Committee Member; Lisa Spainhour, Committee Member.