Some concrete projects across Arkansas are cracking because of high-alkali cement that was used from 1997 through 2002, according to researchers at the University of Arkansas at Fayetteville. The ...

WINSLOW - Researchers believe some concrete projects built in the state between 1997 and 2000 are cracking because a mineral in Arkansas River sand has reacted with high-alkali cement that was used at ...

Summary: The focus of this project is to model the shear strength of concrete panels that have experienced alkali silica reaction. The end goal is to be able to derive an equation that relates the ...

Bridges, dams, nuclear plants and other concrete structures are built to stand for decades, but they are not indestructible. One phenomenon that shortens the life of concrete buildings and structures ...

MIT’s Concrete Sustainability Hub (CSHub) explored the impact of alkali-silica reactivity (ASR) on premature concrete deterioration in its latest Research Brief, “Simulating the Formation of ASR Gels.

Over the past four decades, the use in concrete of supplementary cementitious materials (SCMs), such as fly ash, slag cement, and silica fume, has improved the properties of fresh concrete, such as ...

When bridges, dam walls and other structures made of concrete are streaked with dark cracks after a few decades, the culprit is AAR: the alkali-aggregate reaction. AAR damages concrete structures all ...