Which of the following is a characteristic of high-performance concrete?

Prepare for the ACI Concrete Flatwork Finishing Certification Test. Enhance your knowledge with flashcards and multiple choice questions, complete with hints and explanations. Gear up for success!

High-performance concrete is designed to have superior characteristics compared to conventional concrete, making it suitable for demanding applications. One of the primary attributes of high-performance concrete is its enhanced workability and durability. This means that it not only flows easily during placement, facilitating the finishing process but also possesses a long service life, resisting environmental factors such as moisture, chemicals, and extreme temperatures.

The composition of high-performance concrete often includes advanced materials like silica fume, superplasticizers, and other additives that contribute to these enhanced properties. As a result, it can withstand harsher conditions and maintain its integrity over extended periods, which is essential for structures subjected to heavy loads or severe weather conditions.

In contrast, the other options do not align with the characteristics of high-performance concrete. Low durability, high permeability, and increased shrinkage would typically be associated with lesser quality concrete, which is not desirable in high-performance applications. High-performance concrete aims to minimize shrinkage and permeability to reduce maintenance needs and enhance longevity.

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