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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 70 Abstracts search results
Document:
CI4703ASCE-Awards
Date:
March 1, 2025
Publication:
Concrete International
Volume:
47
Issue:
3
Abstract:
The American Society of Concrete Contractors (ASCC) Decorative Concrete Council (DCC) provides best practices for sealing stamped concrete, including sealer types, surface preparation, application, and maintenance.
DOI:
10.14359/51745649
CI4703DCCPractices
10.14359/51745650
SP-363-4
July 1, 2024
Author(s):
Naveen Saladi, Chandni Balachandran, Robert Spragg, Zachary Haber, and Benjamin Graybeal
Symposium Papers
363
Corrosion of steel reinforcement is one of the primary contributing factors to bridge deck deterioration. Based on the extent of corrosion, different corrosion mitigation strategies can be used to extend the service life of a bridge deck. Bridge deck overlays are efficient tools in reducing active corrosion. While there are multiple overlay solutions that are commonly deployed, including concrete-based and polymer-based systems, ultra-high performance concrete (UHPC) overlays have gained interest from bridge owners in recent years. Another corrosion mitigation strategy is the application of corrosion-inhibiting chemicals and sealers to a concrete surface to reduce the ingress of deleterious ions. The purpose of this paper is to compare different corrosion mitigation strategies and study the effects of such techniques on the bond between the UHPC overlay and the substrate concrete. UHPC overlays were found to be effective in reducing corrosion rates by more than 50 percent. Sealers and corrosion inhibitors applied to the concrete substrate in combination with placing a UHPC overlay reduced the corrosion rates even further. However, sealers and corrosion inhibitors appeared to negatively affect bond strength, potentially increasing the likelihood of overlay delamination.
10.14359/51742107
CI4603TechSpotlight-Crowe
March 1, 2024
Ryan Crowe
46
Vinyl composition tile, luxury vinyl tile, and polished concrete floors all require regular applications of protective coatings or sealers to maintain their initial appearance. To lower maintenance costs for such floors and make them more environmentally friendly, nanotechnology-based coatings and sealers are becoming a valuable option.
10.14359/51740585
SP277-10
March 1, 2011
M.E. Williams and D. Choudhuri
277
This paper presents a case study in the evaluation and repair of precast prestressed concrete beams with moderate to severe deterioration due to Alkali-Silica Reaction (ASR). The subject of this study is a 25-year old, 15-span bridge in Texas experiencing deterioration characterized by longitudinal cracking along the bottom flange at the beam ends, vertical splitting in the beam web at the bearings, and general map cracking with discoloration on the beam surfaces. Evaluation methods discussed include crack and surface discoloration mapping and as well as procedures for excising samples for petrography and accelerated expansion testing to confirm the presence of ASR. A structural evaluation of the existing beams is also presented to study the potential capacity loss resulting from concrete deterioration. Detailed visual observations of distressed conditions, structural analysis of damage scenarios, and laboratory test results were considered to develop a repair course of action that included the application of crack fillers, concrete penetrating sealers, and coatings as well as the application of CFRP composites to confine the expansion in the concrete beams.
10.14359/51682375
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