In today’s market, it is imperative to be knowledgeable and have an edge over the competition. ACI members have it…they are engaged, informed, and stay up to date by taking advantage of benefits that ACI membership provides them.
Read more about membership
Become an ACI Member
Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.
American Concrete Institute
38800 Country Club Dr.
Farmington Hills, MI
Feedback via Email
Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Strength and Corrosion Protection of Silica Fume Concrete Containing Fly Ash or Calcium Nitrite Inhibitor or Both
Author(s): P. Montes and I W. Bremner
Publication: Special Publication
Appears on pages(s): 281-302
Keywords: calcium nitrite-based corrosion inhibitor;
compressive strength; corrosion current density; cracked concrete; fly ash; high performance concrete; water-to-cement ratio
Abstract:This paper presents a study on the effects of fly ash and calcium nitrite based corrosion inhibitor (CNI) on the compressive strength and corrosion process of steel rein-forcing bars in high-performance concrete. A 34 full factorial design was developed considering water-to-cement ratio, fly ash percent, CNI dosage and cracked condition in a concrete made with silica fume blended cement. Small-scale concrete slabs containing steel reinforcement were cast in concrete with a cover depth of 20 mm. The slabs were subjected to both natural and simulated marine environments with two cycles of wetting and drying per day. Compressive strength of the concrete was determined at 28 days and at one-year. The corrosion activity was monitored on a regular basis using the linear polarization resistance technique. The results show a non-detrimental effect of CNI on corrosion of specimens containing fly ash and silica fume. CNI alone has, in general, no significant effect in decreasing corrosion; however, the crack width strongly affects the corrosion process.
Click here to become an online Journal subscriber