Chung, K.Y. and Sulieman, M.Z
(2014)
Effect of Vacuum Intrusion Compaction on the Mechanical
Properties of Mortar.
MATEC Web of Conferences, 17 (01003).
pp. 1-8.
ISSN 2261-236X
Abstract
The Vacuum Intrusion Compaction Method (VICM) can be defined as a
mortar or cement based material compaction method which applies the principle of air
pressure in extracting air bubbles trapped in mortar in order to achieve the objective of
compaction. This alternative compaction method is able to prevent segregation from
happening in mortar and other cement based materials. It also provides better control over
the orientation of the elements inside the mortar. Laboratory tests on the physical and
mechanical properties of mortars were conducted to study bulk density, porosity,
compressive strength, and flexural strength in the early stages of strength development of
different mortars. Through such testing, the effectiveness of the vacuum intrusion method
on the effect of compaction could be observed. The outcome of this research shows that
the VICM is capable of compacting mortar and extracting macro pores, thereby providing
a relatively similar compressive strength and flexural strength to that of the standard
compaction method. However, it is not efficient in extracting micro pores, therefore,
leading to high porosity of the mortar specimens. As a conclusion, the vibration
compaction method is still considered a good compaction method when compared to
VICM.
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