- Presentation and analysis of Beams test readings. Illustra...
Presentation and analysis of Beams test readings. Illustrate your essay with specific examples.
The laboratory tests for the beam samples of different
proportion of Metakaolin mix was carried out during 12th
July to 18th July in the City Campus Concrete Laboratory
room. The objective of this project was to understand the effect of
different proportion of Metakaolin mix on the bend strength of the
concentrate mixs. The samples have been taken out from the water
tank after curing for 20 days. The samples were tested after five
months of curing due to some unforeseen technical problems. The
detailed background of the project has been reported in Table
Results for 20 % Metakaolin:
Two different beam samples of 700 mm length, 100 mm width, and
150 mm height have been produced by compaction mechanisms by using
a concrete mix containing 20 % Metakaolin. The composition of the
mix has been reported in Table 2. The weight of each beam was
approximately 25.65 kg. The 20% Meakeoline sample was containing
approximately 0.137091 wt % glass fibre. The two beams, containing
20 % Metakaolin, are named as Beam 1 and Beam 2. Each of the beams
have under gone bending test where the load has been applied from
the top of the samples. The testing results for Beam 1 and Beam 2
are discussed below.
Presence of glass fibre: The cement mix
used for this project was containing glass fibre as a mixing
constituent. From the testing results it also been seen that the
average loads vary with the presence of glass fibre in the mix. The
effect of % glass fibre on the average load and the average load of
first crack initiation is given in Table 12.
Finally, it can be concluded that the cement mixtures
corresponding to 20% Metakaolin and 0.137 wt % Glass fibre was the
hardest samples amongst all grades of cement mixtures. Therefore,
Metakaolin can be used as partial replacement to cement to achieve
improved physical properties such as bending strengths, point of
first crack initiation.