Recommendations for future research

The tests in this thesis were mainly on small-scale specimens. However, in order to better predicate the performance of pre-soaked LWA and CSA cement on shrinkage mitigation in field, the further research on large-scale specimens has to be conducted. This is because that several differences, such as surface-to-volume ratio and the way the specimens are restrained, exist between small-scale and large-scale specimens and may affect the effectiveness of pre-soaked LWA and CSA cement.

As shown in this thesis, the early-age deformation is very critical on deformation study. Thus, proper methods of early-age deformation measurement have to be adopted.

The properties of a LWA that determine its effectiveness on shrinkage mitigation need to be examined more carefully. An evaluation method needs to be developed so the effectiveness of the LWA on shrinkage could be measured based on the properties of the LWA.

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Furthermore, in this thesis, the influences of thermal deformation, plastic deformation and early-age creep were not taken into consideration. For future research, these factors need to be considered in order to predict shrinkage behavior more accurately.

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