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.
ACI World Headquarters
38800 Country Club Dr.
Farmington Hills, MI
ACI Middle East Regional Office
Second Floor, Office # 02.01/07
The Offices 02 Building, One Central
Dubai World Trade Center Complex
Phone: +971.4.516.3208 & 3209
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: Overview of Anchorage Problems of Reinforcing Bars in High-Performance Silica Fume Concrete
Author(s): B. S. Hamad
Publication: Symposium Paper
Appears on pages(s): 847-870
Keywords: bond; concrete (high-performance); silica fume
Abstract:Production of high performance concrete (HPC) depends on several factors including the use of low water-to-cementitious material ratio, proper dosage of high-range water-reducer (superplasticizer), and a careful selection and dosage of a mineral pozzolanic admixture such as silica fume. Most of the improvement in the strength and durability characteristics of the hardened concrete is attributed to the filler effect and pozzolanic action of the fine size silica fume. Results of tests conducted at the American University of Beirut (AUB) on tension lap splices in full-scale beam specimens and on reinforcing bars anchored in eccentric pullout specimens, indicate that the replacement of part of the cement by an equal weight of silica fume resulted in reduction in bond strength. The reduction was independent of specimen type, bar size, super-plasticizer dosage, and casting position. The mode of failure of the high strength concrete beam specimens was a very brittle bond splitting failure. Tests were conducted to check the effect of transverse reinforcement in the splice region on the bond strength and mode of failure. This paper will provide an overview of the research performed at AUB.
Click here to become an online Symposium Papers subscriber
Please enter this 5 digit unlock code on the web page.