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A New Model for Crack Control in Reinforced Concrete (RC) Tank Walls (Part I and Part II)

New research is focusing on a model for calculating crack width in the case of cracks caused by progressive cooling of the wall (for example, at the stage of concrete hardening or during ambient temperature changes), the concrete shrinkage, and the...
2-May-2019 4:00 PM EDT Add to Favorites

Effect of Sustained Service Loading on Post-Fire Flexural Response of Reinforced Concrete (RC) T-Beams

This research highlights the effect of sustained service load at elevated temperatures on the residual flexural response of reinforced concrete (RC) T-beams after being exposed to 1292°F (700°C) or 1652°F (900°C) for 3 hours, and then air...
3-May-2019 9:00 PM EDT Add to Favorites

Artificial Intelligence to Investigate Properties of Concrete Mixtures Incorporating Recycled Aggregate Concrete

The use of recycled concrete aggregate (RCA) in concrete production can lead to a significant reduction in the Modulus of Elasticity (MOE).
11-Feb-2019 2:15 PM EST Add to Favorites

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Evaluation of Prestressed Concrete Bridges under Light Rail Loading

A field work study of four bridges in Denver, Colorado was conducted to assess the behavior of prestressed concrete bridges carrying light rail transit loadings.
20-Dec-2018 2:00 PM EST Add to Favorites

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Effect of Geopolymer Aggregate on Strength and Microstructure of Concrete

The geopolymer investigated in this research shows potential as a lightweight coarse aggregate for concrete, with the additional benefit of reducing the environmental impact of fly ash from coal-fired power generation.
5-Dec-2018 1:00 PM EST Add to Favorites

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Controlling Mass Concrete Effects in Large Diameter Drilled Shafts Using Full Length Central Void

A team of researchers, contractors, and state materials engineers concluded that the simple process of casting large diameter drilled shafts with a central void completely eliminated mass concrete conditions that can accompany large concrete...
30-Aug-2018 10:15 AM EDT Add to Favorites

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Effects of Moisture, Temperature, and Freezing-and-Thawing on Alkali-Silica Reaction

Controlling or limiting the internal relative humidity (moisture) within concrete may prevent deterioration from occurring, or slow ongoing deterioration.
6-Aug-2018 10:00 AM EDT Add to Favorites

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High-Volume Recycled Materials for Sustainable Transportation Infrastructure

The use of recycled concrete aggregate (RCA) in new concrete production can minimize the environmental impact associated with the construction industry.
23-May-2018 2:00 PM EDT Add to Favorites


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Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development and distribution of consensus-based standards, technical resources, educational & training programs, certification programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete. ACI has over 95 chapters, 110 student chapters, and nearly 20,000 members spanning over 120 countries.

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