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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 35 Abstracts search results
Document:
SP289
Date:
October 1, 2012
Author(s):
Editors: Terence C. Holland, Pawan R. Gupta, V.M. Malhotra
Publication:
Symposium Papers
Volume:
289
Abstract:
This CD contains the proceedings from the Twelfth International Conference on Recent Advances in Concrete Technology and Sustainability Issues held in Prague, Czech Republic, in October 2012. The 34 papers include Advances in Geological CO2 Sequestration and Co-Sequestration with O2; Self-Compacting High-Performance Concretes; Dynamic Performance of Eco-Friendly Prestressed Concrete Sleeper; Parameters Influencing the Performance of Shrinkage-Compensating Concrete, and much more. Note: The individual papers are also available. Please click on the following link to view the papers available, or call 248.848.3800 to order. SP-289
DOI:
10.14359/51684136
SP289-33
September 14, 2012
Amor Ben Fraj, Mohamed Miraoui, Frederic Boinski, and Pierre Mounanga
This study examines the early-age and durability properties of mortars made with Dredged Marine Sand (DMS). Both physical and mechanical properties of the DMS mortars were investigated and compared to those of mortar prepared with conventional aggregates. Results showed that the substitution of Standardized Sand (SS) with DMS had no significant effect on mortar hydration. For a rate substitution of 25%, the mechanical properties of mortars increased, particularly in case of air curing. The increasing of substi¬tution rate of SS with DMS, slightly decreased the mortar density and increased entrapped air and total porosity. For a substitution rate of 50% and more, a decrease of the mechanical properties was measured. Chloride migration coefficients of tested mortars followed similar trends.
10.14359/51684282
SP289-27
Ozlem Akalin and Bahar Sennaroglu
High strength self-compacting concrete (HS-SCC) has increasing demand in infrastructure works where high compressive strength of up to 100 MPa is achieved with a special type of superfluid concrete mixture. SCC was developed in Japan at the end of the 1990’s and the scientific rules to manufacture SCC were developed by Japanese Scientists. Concrete mixture proportions for HS-SCC have been varied widely depending on many factors and sensitive interactions between components. Statistical mixture design (SMD) methods can be used to enhance our understanding of concrete mixtures by providing cost effective fresh and hardened concrete properties. In this study, the optimization results of HS-SCC mixture proportions in C100/115 concrete class using SMD methods were compared with the scientific rules of Okamura and coworkers to manufacture SCC. As a result of this study, suggested concrete mixture proportions through SMD method were confirmed by Okamura’s Rules.
10.14359/51684276
SP289-06
V. Ramakrishnan
High-volume fiber composites composed of structural synthetic fiber-reinforced concrete (SSFRC) are introducing revolutionary changes in the structural application of concrete and shotcrete. These concrete are excellent candidates for repair, retrofit and rehabilitation old structures and for rebuilding the nation’s highways, bridges, buildings, dams, ports, harbors, tunnels, offshore structures, explosion resistant structures, and earthquake resistant structures. This paper presents briefly an evaluation of the construction and performance of a few fiber reinforced concrete structures built during last ten years. Results of control tests for concrete performance in a barrier, a bridge deck overlay and a white topping are given. Attributes of SSFRC towards improving the sustainability and durability are discussed.
10.14359/51684255
SP289-05
Aniello Palmieri, Stijn Matthys, and Luc Taerwe
The use of near surface mounted (NSM) fibers reinforced polymers (FRP) is being increasingly recognized as a valid technique for repairing and strengthening of concrete members. As this technology emerges, the structural behavior of NSM FRP strengthened elements needs to be characterized, and bond between NSM FRP bars and concrete is the first issue to be addressed. This paper presents the results of a series of 18 double shear tests on NSM FRP strengthened concrete. Aim of the project is to investigate the feasibility of the adopted test method and to investigate the mechanism of bond between NSM reinforcement and substrate material. Experimental results confirm the efficiency and reliability of the test method and the bond effectiveness of the NSM technique. Moreover, a local bond stress-slip relationship is determined based on experimental results and the outcome of a numerical investigation obtained from the DIANA TNO finite element analysis.
10.14359/51684254
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