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Home > Publications > International Concrete Abstracts Portal
Showing 1-5 of 439 Abstracts search results
Document:
CI4701Mizer
Date:
January 1, 2025
Author(s):
Jennifer K. Mizer
Publication:
Concrete International
Volume:
47
Issue:
1
Abstract:
The longevity of concrete is influenced by several interrelated challenges, each contributing to its gradual degradation. By addressing both technical and environmental considerations, stakeholders can achieve durable, cost-effective, and eco-friendly concrete solutions that contribute to the long-term sustainability of concrete.
CI4701Bury
Mark A. Bury and Carlito Cascone
This article provides an overview of a hydration-controlling (stabilizing) admixture and its use for recycling returned concrete. It includes details on a robustness evaluation of stabilization performance in a unique cross-country experiment, as well as information on the potential for lowering the environmental impacts of concrete production.
CI4609ConcreteQA
September 1, 2024
46
9
Understanding how to meet low-carbon concrete (LCC) mixture requirements is a challenge that many in the concrete industry now face. Part of the challenge is that the definition and reporting requirements for LCC vary widely by jurisdiction and specifying agency. Global warming potential limits, per mixture or per project requirements, and industry-average environmental product declarations have to be considered.
CI4609EPAgrants
The U.S. Environmental Protection Agency (EPA) announced the selection of 38 grant recipients across the country, totaling nearly 160 million USD, to support efforts to report and reduce climate pollution from the manufacturing of construction products. The grants will be awarded to businesses, universities, and nonprofit organizations serving all 50 states and will help disclose the environmental impacts associated with manufacturing concrete, asphalt, glass, steel, wood, and other materials.
SP-362_69
June 18, 2024
Eliana Soldado, Hugo Costa, Ricardo do Carmo, and Eduardo Júlio
Symposium Papers
362
The addition of supplementary cementitious materials (SCMs) to low-carbon concrete mixtures has been investigated in recent years as part of the sustainability of the concrete sector. Recently, most traditional SCMs, such as fly ash and blast furnace slags, have become unavailable in several developed countries, mostly due to environmental restrictions. Consequently, several new by-products from fast-growing sectors are being considered as potential replacements for traditional SCMs. However, the durability of these new by-products in low-carbon concrete has not been thoroughly explored. As a result, this paper presents the first part of a project related to an extensive experimental characterization, in which low-carbon concrete with high compactness, paste optimization, and partial cement replacement by the addition of waste by-products from the agricultural, metallurgical, paper, and glass industries is studied. Alternative SCMs including rice husk ash, biomass fly ash, rock wool residues, or waste foundry sand are incorporated into corresponding mortar matrices and the results concerning the mechanical properties (flexural and compressive strength) and durability (capillary water absorption, surface electrical resistivity, and carbonation resistance) are presented and analyzed. The outcomes indicate that it is possible to reduce the Portland cement content without compromising the mechanical and durability properties of the concrete.
DOI:
10.14359/51742019
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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.