Steam Curing of Portland Cement Concrete at Atmospheric Pressure, HR-40, 1962

(1962) Steam Curing of Portland Cement Concrete at Atmospheric Pressure, HR-40, 1962. Transportation, Department of

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Abstract

The primary reason for using steam in the curing of concrete is to produce a high early strength. This high early strength is very desirable to the manufacturers of precast and prestressed concrete units, which often require expensive forms or stress beds. They want to remove the forms and move the units to storage yards as soon as possible. The minimum time between casting and moving the units is usually governed by the strength of the concrete. Steam curing accelerates the gain in strength at early ages, but the uncontrolled use of steam may seriously affect the growth in strength at later ages. The research described in this report was prompted by the need to establish realistic controls and specifications for the steam curing of pretensioned, prestressed concrete bridge beams and concrete culvert pipe manufactured in central plants. The complete project encompasses a series of laboratory and field investigations conducted over a period of approximately three years.

Item Type: Departmental Report
Keywords: Atmospheric pressure, Beams, Concrete curing, Culvert pipe, High early strength cement, Portland cement concrete, Precast concrete, Prestressed concrete, Steam curing, Bridge beams
Subjects: Transportation > Pavements
Transportation
Transportation > Bridges and tunnels
Transportation > Research
Transportation > Research > Concrete
Transportation > Design and Construction
ID Code: 17299
Deposited By: Iowa DOT Library
Deposited On: 30 Jun 2014 12:57
Last Modified: 18 Sep 2014 15:33
URI: http://publications.iowa.gov/id/eprint/17299