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Home > Publications > International Concrete Abstracts Portal
Showing 1-5 of 102 Abstracts search results
Document:
CI4603DeCaso
Date:
March 1, 2024
Author(s):
Adam Roberti, Xavier Cortada, and Francisco De Caso
Publication:
Concrete International
Volume:
46
Issue:
3
Abstract:
A permanent interactive art installation of sustainable concrete elevation sculptures ("The Underwater") is being created across all parks in Miami-Dade County, FL, USA. The installation was initiated by the local artist Xavier Cortada as an art project to create yard signs and painted street intersections that bring attention to the area's vulnerability to rising sea levels.
SP327-01
November 1, 2018
Erblina Vokshi
Symposium Papers
327
SYNOPSIS: The use of wet lay-up fiber-reinforced polymers (FRPs) in the construction industry continues to grow. Their lightweight, durability, and good material properties makes them very desirable in the concrete repair industry. Research has shown that these products greatly improve the strength of repaired corroded members and reduce the rate of post-repair corrosion. There is a lack of research, however, in understanding how curing of these systems in the presence of moisture or underwater may affect their ability to strengthen and protect reinforced concrete. In this paper, data on material properties of a prepreg system, cured in laboratory conditions and under-water is presented and compared. The results show that there is a very small drop in tensile material properties when the system is cured underwater. Compression of concrete cylinders strengthened with one layer of the system and cured underwater is shown to be in agreement with ACI 440.2R-08’s confinement equations. Durability testing of the bond between the system and reinforced concrete using dolly pull-off test shows a 90% bond strength retention after 1,000hr exposure to various aggressive environments.
DOI:
10.14359/51713321
CI4005Alymov
May 1, 2018
Eugene Alymov
40
5
Zero-slump concrete can be used for weight coating of steel pipes used for the underwater transmission of natural gas, primarily to provide negative buoyancy for the pipe sections. This concrete is prepared using heavyweight (iron ore) aggregates and typically has a water-cement ratio of 0.33. Results of the study described in this article indicate that void contents can be reduced using water-cement ratios that exceed the typical value. This will allow for cost savings through reductions in the proportion of heavyweight aggregate in the mixture.
SP311-12
September 1, 2016
Mohammad R. Ehsani
311
Since the late 1980s, FRP products have seen increased use in repair and strengthening of concrete structures. The traditional technique is referred to as wet layup where carbon or glass fabric are saturated with epoxy in the field and applied to the structure. In this paper I present several new products that I have developed in recent years. One is very large pre-cured carbon or glass laminate sheets that can be used to repair columns, piles underwater, pipelines, etc. The other is a honeycomb-FRP combination that allows construction of lightweight stiff elements. This product can be used to build pipes that can serve as free-standing elements or in slip-lining repair of deteriorated culverts and pipes. These products can also be used as stay-in-place forms for repair of seawalls, large piers and the like. Examples of field applications are also presented.
10.14359/51689321
CI3609PointLobos
September 1, 2014
36
9
A diver’s eye view of Point Lobos Marine Reserve without getting wet
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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.
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