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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
SP289-11
September 14, 2012
Halina Szklorzova, Radek Holesinsky, Josef Kratky, Jan Krestan, Stanislav Rolc, and Lenka Smetanova
The experimental work is aimed at designing the concrete mixtures for special applications, in which several types of aggregate and reinforcement are used. The effects of aggregate types and sizes and types of reinforcement (oriented and randomly dispersed) are presented. The reinforcements used are various metallic and non-metallic nets and dispersed fibers. Mechanical and explosion tests were performed and the effect of different kinds of aggregate and reinforcement on explosion resistance and mechanical performance of the concrete samples were evaluated.
10.14359/51684260
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
SP289-07
Joseph J. Assaad and Salim E. Asseily
With today’s constraints on the necessity to reduce carbon dioxide emissions and optimize cement cost, a growing need has arised to develop new generation grinding aids (GA) that can substantially minimize the clinker factor while maintaining adequate compressive strength. A newly developed GA containing combinations of amine-based polymers and polycarboxylate acids was tested and compared to traditional glycol-based GA. Test results showed that the new generation GA leads to significant improvements in the performance of grinding mills, and decreases water demand needed to achieve given consistency. Compared to control mix, strength increase reaching 44% was measured when the new generation GA was added at 0.3% of cement weight. The corresponding clinker factor and energy consumption were found to be simultaneously reduced by 30% and 4.25%, respectively.
10.14359/51684256
SP289-08
Theodore W. Bremner
The construction industry has been effective in reducing its contribution to global warming particularly in the production of construction materials. Unfortunately this is not true to the same extent in the design of appropriately constructed facilities to cope with global warming. It was fortuitous that steps taken to stem the release of greenhouse gases in the production of sustainable construction materials also resulted in a significant and immediate reduction in the cost of production. However, this economic driver is not operative in the design of constructed facilities. Consequently, departing from a rigid adherence to linear elements to the more economical use of plate and surface components, as well as the use of advanced materials, deserve greater attention. Such changes are recommended, the most important one being the quest for economical housing for masses of people currently needing to relocate as a result of weather extremes created by global warming. Problems associated with rising sea levels, scarcity of potable water and loss of soil productivity are consequences of global warming. These are the driving forces behind the need of people to relocate which in turn is generating the impending need for infrastructure. Solutions exist for these problems, but worldwide economic conditions will influence their resolution unduly unless more energy efficient facilities can be constructed.
10.14359/51684257
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