Email Address is required Invalid Email Address
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
Learn More
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.
Staff Directory
ACI World Headquarters 38800 Country Club Dr. Farmington Hills, MI 48331-3439 USA Phone: 1.248.848.3800 Fax: 1.248.848.3701
ACI Middle East Regional Office Second Floor, Office #207 The Offices 2 Building, One Central Dubai World Trade Center Complex Dubai, UAE Phone: +971.4.516.3208 & 3209
ACI Resource Center Southern California Midwest Mid Atlantic
Feedback via Email Phone: 1.248.848.3800
ACI Global Home Middle East Region Portal Western Europe Region Portal
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.
Showing 1-5 of 46 Abstracts search results
Document:
SP186
Date:
May 1, 1999
Author(s):
Editors: V.M. Malhotra, P. Helene, L.R. Prudencio Jr, and D.C.C. Dal Molin
Publication:
Symposium Papers
Volume:
186
Abstract:
The Second CANMET/ACI International Conference was held in Brazil in 1999 and showcased information on emerging high-performance concrete in Brazil and other South American countries. Over 100 papers were submitted from all over the world and were reviewed in accordance with ACI policy. Forty-five were accepted for publication in this volume. Note: The individual papers are also available as .pdf downloads.. Please click on the following link to view the papers available, or call 248.848.3800 to order. SP186
DOI:
10.14359/14225
SP186-14
I. A. E. M. Shehata, L. A. Ventorini, and L. C. D. Shehata
The characteristics of the steel and the concrete have been changing over the years and this has led to the necessity of new studies on how rotation capacity and the degree of moment redistribution in continuous beams can be affected. Among the factors that have influence on the behaviour of plastic hinges, one could mention the material dependent parameter: steel strength and ductility, concrete strength and bond quality. This work is part of a study on moment redistribution in continuous beams that aimed to verify the effect of bond on the comparisons, normal strength concrete (NCS) beams were also tested. The results of this work have indicated an effect of bond on the plastic rotation capacity of both HSC and NSC beams. As for the plastic hinge length, no effect has been detected, but this should be further investigated.
10.14359/5559
SP186-05
W. Moura, A. Masuero, D. Dal Molin, and A. Vilela
The generation of solid residues and an adequate final destiny for them is a subject that have attracted more and more researches. The recycling of solid by-products as construction materials can be an alternative to reduce costs of the latter and the impact on the environment. Nevertheless, it is fundamental that the characteristics of these new materials be equivalent to the traditional ones or even better, if possible. In this context, the use of electric steel slag and copper slag can be a potential alternative to the admixtures used in concrete and mortars. Results of physical, chemical and physical-chemical characterizations of electric steel lags from Rio Grande do Sul and copper slags from Bahia, both in Brazil, are presented in this work. Also presented are results of compressive tests, flexural tests and Brazilian tests in concrete specimens with these admixtures, indicating the viability of their use.
10.14359/5550
SP186-13
G. Rodriguez de Sensale and D. C. C. Dal Molin
The possibility of rice-husk ash utilization in the production of structural concrete is very important for both Brazil-one of the major rice producers worldwide-and Uruguay, where rice is a major corp. Rice-husk ash is mainly used s fuel in rice paddy milling processes, the use of this fuel generates a great volume of ash that causes air, soil and water springs pollution and contamination, therefore the utilization of such ash has aroused the interest of researchers in both countries. For this reason, this paper presents a theoretical and an experimental study on the effects of the substitution of different percentages of portland cement concrete without risk-husk ash. For a better understanding of mechanical performance, research is done into the microstructural study was undertaken using Scanning Electron Microscopy, and X-ray Diffraction Analysis. It was concluded that the rice-husk ash used in this study was burnt at too high a temperature to produce a highly active pozzolan.
10.14359/5558
SP186-35
A. P. Almeida and N. de Oliveira Pinto, Jr.
Many prediction criteria for evaluating the ultimate strength of high strength concrete deep beams are compared in this research. Added to the theoretical values obtained by the equations, a strut and tie model was developed, using the load path obtained by the Finite Element Method. The values found are also compared with test results in three high strength concrete deep beams with web openings. The test specimens consist of simply supported deep beams with openings located next to one of the supports. It is shown that there is great difference in the values encountered by theoretical analysis, and only ACI's prediction gets close to the test results, in spit of not considering the opening.
10.14359/5580
Results Per Page 5 10 15 20 25 50 100