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Selecting Construction Measures for Mitigating Early-Age Delamination in CRC Pavements Made with Gravel Aggregates
Publisher: American Society of Civil Engineers
Abstract: Gravel aggregates have been used extensively in the Houston District for continuously reinforced concrete (CRC) pavements construction for many years. However, some of these pavements have been subject to early-age ...
Improved Infiltration Modeling for Partially Sealed Joints in Concrete Pavement Design
Publisher: American Society of Civil Engineers
Abstract: The primary purpose for sealing joints in rigid pavement—besides limiting incompressible material—is to prevent or reduce the amount of water infiltrating into the pavement structure. The presence of moisture in a pavement ...
Finite-Element Modeling and Calibration of Temperature Prediction of Hydrating Portland Cement Concrete Pavements
Publisher: American Society of Civil Engineers
Abstract: The temperature profiles in a hydrating concrete slab are produced by a two-dimensional finite-element method software tool,
Estimating Volume Fraction of Free Water in Hardening Concrete by Interpretation of Dielectric Constant
Publisher: American Society of Civil Engineers
Abstract: During the hydration of Portland cement concrete, free water reacts with the compounds of unhydrated cement to form the hydrated phases that make up concrete. The chemical reaction results in a reduction in the amount of ...
Development of Dilatometer Test Method to Measure Coefficient of Thermal Expansion of Aggregates
Publisher: American Society of Civil Engineers
Abstract: This paper addresses a user-friendly test method to measure as-received aggregate coefficient of thermal expansion (CoTE) using dilatometery. A dilatometer can accommodate materials of different size, shape, and density ...
Environmental Effects on the Behavior of Jointed Plain Concrete Pavements
Publisher: American Society of Civil Engineers
Abstract: A concrete slab was constructed at Texas A&M University to investigate environmental effects in terms of temperature and moisture effects on the behavior of jointed plain concrete pavements. The slab behavior was delineated ...
Approach to Local Calibration of an Advanced Model for Punchout Distress Using LTPP Data
Publisher: American Society of Civil Engineers
Analysis of Concave Curling in Concrete Slabs
Publisher: American Society of Civil Engineers
Abstract: A concrete pavement curls to a concave configuration when it is subjected to a negative temperature gradient, which results when the temperature at its bottom surface is higher than at its top surface. A gap may occur ...
Laboratory Investigation of Influencing Factors on Early-Age Delamination in CRC Pavements
Publisher: American Society of Civil Engineers
Abstract: Studies since the early 1990s have been conducted in Texas to gain a better understanding of mechanisms, material properties, and construction practices related to early-age delamination in continuously reinforced concrete ...
Testing the Effectiveness of Class C and Class F Fly Ash in Controlling Expansion due to Alkali-Silica Reaction Using Modified ASTM C 1260 Test Method
Publisher: American Society of Civil Engineers
Abstract: The effectiveness of several Class C and Class F fly ashes in controlling expansion due to alkali silica reactivity (ASR) was investigated based on a modified ASTM C 1260 test method. Three different strengths of NaOH ...