00932131

Component

https://doi.org/10.3141/1798-05

http://scholar.google.com...wang&publication_year=2002

Many state departments of transportation are currently either using high-performance concrete (HPC) or developing new mix proportions for the application of HPC to transportation structures, with emphasis on bridge decks. However, many state engineers have observed that curing methods and conditions in the field affect the behavior of HPC structures. Moreover, little is known about the effect of curing on the long-term durability of HPC. Therefore, it is necessary to understand the behavior of HPC under various curing conditions and durations and the effect of pozzolanic material such as fly ash and silica fume on rapid chloride permeability (RCP). These factors were studied as part of a project for the New Jersey Department of Transportation to develop and implement mix design and technical specifications for HPC transportation structures such as pavements and bridges. Several mixes were tested, and the best mix was selected on the basis of strength and shrinkage test performance. The long-term durability was assessed by tests for RCP, creep, and freeze-thaw behavior. Moreover, the effect on HPC of four curing methods--moist curing, air-dry curing, burlap wrap, and curing compound--was investigated. Moist-cured cylinders performed better than those cured with other methods, and a minimum of 14 days of cure was required for HPC to attain its full strength.

This paper appears in Transportation Research Record No. 1798, Concrete 2002.

English

p. 31-38

2002

Transportation Research Record

0309077230

Figures (7) ; Photos (4) ; References (8) ; Tables (2)

Compressive strength; Concrete bridges; Concrete curing; Concrete pavements; Creep tests; Durability; Fly ash; Freeze thaw durability; High performance concrete; Mix design; Silica fume; Specifications

Moist curing; Rapid chloride permeability

Highways; Materials; I32: Concrete

TRIS, TRB, ATRI

Oct 28 2002 12:00AM

• ALKALI-SILICA REACTIVITY RESISTANCE OF HIGH-VOLUME FLY ASH CEMENTITIOUS SYSTEMS
• FATIGUE DAMAGE IN ROLLER-COMPACTED PAVEMENT FOUNDATION WITH RECYCLED AGGREGATE AND WASTE PLASTIC STRIPS
• HEAT REMOVAL FROM MASS CONCRETE FOOTING
• INFLUENCE OF KEY PARAMETERS ON QUALITY OF DRY-MIX SHOTCRETE
• INVESTIGATING PREMATURE DETERIORATION OF A CONCRETE HIGHWAY
• PERFORMANCE OF FIRST STRUCTURE BUILT WITH HIGH-PERFORMANCE CONCRETE IN VIRGINIA
• TEST METHOD FOR APPRAISING FUTURE DURABILITY OF NEW CONCRETE BRIDGE DECKS
• USING EPIFLUORESCENCE OPTICAL MICROSCOPY TO IDENTIFY CAUSES OF CONCRETE DISTRESS: CASE STUDY