Which type of slump concrete is stronger?

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Enhance your skills with the Art of Reading Buildings Test. This test features multiple choice questions, each equipped with hints and explanations to aid in your learning. Prepare effectively for your upcoming exam!

Multiple Choice

Which type of slump concrete is stronger?

Explanation:
Lower slump concrete is stronger. Slump measures how fluid or workable the mix is, but strength comes mainly from the water–cement ratio and the amount of cement paste relative to water. A lower slump means less water relative to cement, so there’s more cement paste available to develop strength as the concrete cures. Higher slump adds more water to improve flow, which typically increases porosity and reduces the final compressive strength. So, among common slump categories, the stiffer, low-slump mix tends to achieve higher strength when properly designed and cured.

Lower slump concrete is stronger. Slump measures how fluid or workable the mix is, but strength comes mainly from the water–cement ratio and the amount of cement paste relative to water. A lower slump means less water relative to cement, so there’s more cement paste available to develop strength as the concrete cures. Higher slump adds more water to improve flow, which typically increases porosity and reduces the final compressive strength. So, among common slump categories, the stiffer, low-slump mix tends to achieve higher strength when properly designed and cured.

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