State-of-the-Practice Review of Field-Curing Methods for Evaluating the Strength of Concrete Test Specimens

Solanki, Pranshoo; Xie, Haiyan; Awaitey, John; Reddy, Tejaswi

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https://hdl.handle.net/2142/117446 Copy

Description

Title

State-of-the-Practice Review of Field-Curing Methods for Evaluating the Strength of Concrete Test Specimens

Author(s)

• Solanki, Pranshoo
• Xie, Haiyan
• Awaitey, John
• Reddy, Tejaswi

Issue Date

2023-04

Keyword(s)

• Pavement
• Structures
• Concrete
• Field Curing
• Match Curing
• Maturity Method
• Traffic
• Formwork
• Falsework
• Cylinders
• Beams

Abstract

The American Association of State Highway and Transportation Officials (AASHTO) T 23 standard provides instructions for making and curing concrete test specimens in the field. However, further research is needed to compare the strength of the field-cured specimen with the strength of the actual in-place concrete item. The purpose of this research is to build an understanding of the current state of the practice for field-curing methods. Specifically, the research team conducted a literature review and questionnaire survey to identify the selection criteria and details of field-curing methods. The results of the literature data and survey outcomes indicate most transportation agencies use field-cured cylinders, followed by the maturity method, to decide when to open pavement to traffic or remove formwork or falsework. The most commonly used field method found among transportation agencies was curing the test specimens near (or on) the cast concrete in the same manner as the concrete item represented. The cylindrical specimens are mostly field cured in insulated boxes such as a cooler or under burlap/insulation near the concrete item. In contrast, beams are mostly field cured in a damp sandpit or under burlap/insulation near the concrete item. Other field-curing technologies used by agencies are match curing, SureCureTM cylinder-mold system, piezoelectric sensors, calorimetry, and penetration-resistance tests.

Publisher

Illinois Center for Transportation

Has Part

• https://doi.org/10.36501/0197-9191/23-003
• ISSN: 0197-9191

Series/Report Name or Number

FHWA-ICT-23-002

Type of Resource

text

Language

en

Sponsor(s)/Grant Number(s)

IDOT-R27-219

Copyright and License Information

No restrictions. This document is available through the National Technical Information Service, Springfield, VA 22161.

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