14,000 psi in 24 hours

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Title: 14,000 psi in 24 hours

Author(s): Theodore A. Burge

Publication: Concrete International

Volume: 5

Issue: 9

Appears on pages(s): 36-41

Keywords: accelerating agents; admixtures; binders (materials); compressive strength; C3S; high-early-strength cements; high-strength concretes; plasticizers; silica.

Date: 9/1/1983

Abstract:
High-strength concrete is considered to be concrete with a compressive strength higher than 6000 psi (42.8 MPa). An extremely strong and dense con-crete can be produced with a 24 hour compressive Strength higher than 14,000 psi (100 MPa) with conventional methods of production, room temperature curing, and cement-based binders and admixtures. The binder is made of portland cement, silica fume, superplasticizer, and an alkali-free accelerator. Variations of the mix proportioning and corresponding test results are presented.