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What is Drying Shrinkage in Sandstone Aggregates about?

This document summarizes a study assessing the drying shrinkage of different sedimentary rocks used as concrete aggregates, mainly sandstones. The key findings are: 1) Drying shrinkage of aggregates depends on their alteration and metamorphic type, which influence the type and amount of minerals and pore spaces present. 2) There is a positive correlation between drying shrinkage and water vapor desorption from aggregates. Reducing the volume of pores 4-20 nm in diameter significantly reduces shrinkage.

Author

Henrique Goncalves

Language

EN