High Strength Lightweight Aggregate Concrete for Arctic Applications--Part 2: Mechanical Properties

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Title: High Strength Lightweight Aggregate Concrete for Arctic Applications--Part 2: Mechanical Properties

Author(s): George C. Hoff

Publication: Special Publication

Volume: 136

Issue:

Appears on pages(s): 67-174

Keywords: abrasion; absorption; arctic concrete; blast furnace slag; bond; cold weather construction; compressive strength; creep drying shrinkage; flexural strength; fly ash; freeze-thaw durability; harbor structures; high-strength concretes; lightweight aggregate

Date: 1/1/1993

Abstract:
Second of a three-part paper presents the results of a joint industry project to develop high-strength lightweight aggregate concretes for use in the Arctic and describes the mechanical properties of those concretes. Both crushed and pelletized lightweight aggregates were used with supplementary cementing materials and high-range water reducers to produce concretes with compressive strengths from 8000 to 11,000 psi (55 to 76 MPa). Other properties evaluated included modulus of elasticity, Poisson's ratio, splitting tensile strength, modulus of rupture, drying shrinkage, creep, seawater absorption, chloride ion permeability, thermal properties, air-void systems, freezing and thawing behavior, ice abrasion resistance, and adfreeze bond behavior. The effects of low temperatures on many of these properties were also evaluated. Special tests were developed to approximate Arctic conditions for freezing and thawing behavior, ice abrasion, and adfreeze bond strength.