The modified nurse-saul (MNS) maturity function for improved strength estimates at elevated curing temperatures
Source abstract
Abstract
Curing temperature affects significantly the compressive strength development of mortar mixtures. Higher curing temperatures accelerate the cement hydration and thus also the early age compressive strength development. However, the age conversion factors in maturity functions, especially that of the Nurse-Saul function, are not sufficient to account for this acceleration and thus an additional “acceleration” factor is needed. The “acceleration” compresses a certain percentage of hydration or strength development into a smaller time interval. The strength development rate was increased because of the “compression” of the hydration. The “acceleration” factor was not equal to the “compression” factor. The reaction at the higher temperature was therefore less efficient in contributing to the compressive strength than the reaction at the lower temperature. A relationship between concrete strength and the Nurse-Saul maturity index combined with an “acceleration” and a “temperature efficiency” factors are used in an iterative procedure for predicting/estimating the strength development for other than the standard 20 °C curing temperature.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Concrete and Cement Materials Research · Concrete Properties and Behavior · Innovative concrete reinforcement materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (38)
Show source-provided references
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