What question did this study set out to answer?

To establish and validate a standardized experimental guideline for the mini-slump test to ensure reproducible yield stress measurements in fresh cementitious pastes.

October 19, 2017Materials and StructuresOpen Access

Reproducible mini-slump test procedure for measuring the yield stress of cementitious pastes

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To establish and validate a standardized experimental guideline for the mini-slump test to ensure reproducible yield stress measurements in fresh cementitious pastes.
Evaluated the impact of key mixing and testing variables, focusing on elapsed time post-mixing and single versus repeated testing per batch.
Validated the protocol using alkali-activated fly ash-slag pastes spanning yield stresses from 1 to 75 Pa.
Benchmarked calculated yield stresses against direct measurements obtained with a conventional vane viscometer.
Yield stresses derived from mini-slump spread correlated strongly with vane viscometer measurements under pure shear flow across the 1 to 75 Pa range.
Conducting tests at a fixed time post-mixing and testing each material batch only once produced highly reproducible experimental outcomes.

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Implication

Experimental study demonstrates reliable yield stress measurement in alkali-activated cementitious pastes, highlighting standardized mini-slump timing and single-batch testing.

Cite This Study

Tan et al. (2017) studied this question.

synapsesocial.com/papers/69d97daf1ad561c6736846a0 https://doi.org/10.1617/s11527-017-1103-x

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Implication

Experimental study demonstrates reliable yield stress measurement in alkali-activated cementitious pastes, highlighting standardized mini-slump timing and single-batch testing.

Reproducible mini-slump test procedure for measuring the yield stress of cementitious pastes

Key Points

Discussion

Implication

Cite This Study

Reproducible mini-slump test procedure for measuring the yield stress of cementitious pastes

Key Points

Discussion

Implication

Cite This Study

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