Design and Construction of a Full-Scale Field Implementation of Internally Cured Concrete for Iowa Pavement Systems
Date
2022-04-06
Authors
Major Professor
Advisor
Committee Member
Journal Title
Journal ISSN
Volume Title
Publisher
SSRN
Abstract
Surface evaporation is a process that dries concrete pavement and decreases the cement hydration rate. External curing keeps the surface moist and mitigates surface drying by evaporation, thus enhancing surface cement hydration. Internal curing is a comparatively recent method to increase the duration of cement hydration by using internal water reservoirs without changing the water cement ratio in a concrete mixture. This method has been utilized to improve concrete durability and decrease shrinkage in concrete structures. In this study, Lightweight Fine Aggregate (LWFA) has been used in two county roads in Iowa. In the lab, a testing regime including compressive, and tensile strength, modulus of elasticity, surface resistivity, calorimetry, and scanning electron microscopy has been applied to evaluate the effects of using LWFA. In the field, a Decagon 5TE sensor was used to measure the relative permittivity and temperature of the concrete materials after construction. The laboratory and field results showed that using LWFA improved the mechanical and potential durability properties of concrete by extending cement hydration.
Series Number
Journal Issue
Is Version Of
Versions
Series
Academic or Administrative Unit
Type
Preprint
Comments
This preprint is from Daghighi, Amin and Taylor, Peter C. and Ceylan, Halil and Zhang, Yang, Design and Construction of a Full-Scale Field Implementation of Internally Cured Concrete for Iowa Pavement Systems. Available at SSRN: https://ssrn.com/abstract=4076504 or http://dx.doi.org/10.2139/ssrn.4076504.