00796895

Component

https://doi.org/10.3141/1698-09

http://scholar.google.com...gott&publication_year=2000

The researchers' primary objective was to evaluate the early-strength characteristics of self-compacting concrete (SCC), which is a type of concrete that can be placed without external vibration, even in congested areas. Two unique characteristics of SCC are its high-percentage substitution of cement with fly ash or slag cement, or with both fly ash and slag cement and a relatively high superplasticizer dosage. Both of these characteristics retard early-strength gain. The impetus was to develop SCC with an early strength suitable for precast applications. The major findings are that it is possible to proportion SCC mixtures with high early strength (30 MPa at 16 h under steam curing) and that high slump does not necessarily correlate with self-compaction.

This paper appears in Transportation Research Record No. 1698, Concrete 2000.

English

p. 61-69

2000

Transportation Research Record

030906676X

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

Concrete; Fly ash; High early strength cement; Mix design; Self compacting concrete; Slag cement; Slump test; Superplasticizers

Highways; Materials; I32: Concrete

TRIS, TRB, ATRI

Aug 3 2000 12:00AM

• 92-MPA AIR-ENTRAINED HIGH-PERFORMANCE CONCRETE USING TENNESSEE MATERIALS
• ACCELERATED ALKALI-SILICA REACTIVITY TESTING OF RECYCLED CONCRETE PAVEMENT
• DETECTING THE EXTENT OF CORROSION WITH ACOUSTIC EMISSION
• HIGH-PERFORMANCE CONCRETE IN THE RICHLANDS BRIDGE IN VIRGINIA
• MITIGATION OF ALKALI-SILICA REACTIVITY IN NEW MEXICO
• OPTIMIZATION OF AMOUNT AND BLENDING OF CEMENTITIOUS MATERIALS IN HIGH-PERFORMANCE CONCRETE
• THIN CONDUCTIVE CONCRETE OVERLAY FOR BRIDGE DECK DEICING AND ANTI-ICING
• VARIATIONS IN THE SHORT- AND LONG-TERM CHARACTERISTICS OF BRIDGE CONCRETE DUE TO TRANSPORTATION TECHNIQUES