Our research group is planning to perform a comparative analysis regarding the compressive strength of two different fine aggregates substitute for concrete hollow blocks with that in standard CHB. What is the most accurate and reliable statistical test will we use? Thank you so much for your help.
This depends on what variables you need to include in the preparation of the aggregates. If there are few (e.g. % of aggregate material, mixing time, mixing temperature etc) and you include controls before and after the compressive tests, analysis of variance should help identify those variables which have an effect and those which do not.
Best wishes
Raechel Laing
As mentioned in the previous note, the signficance of various factors can be decided by Design of Experiments (DOE), see a short introduction: http://techdigest.jhuapl.edu/TD/td2703/telford.pdf. You have to select the variables to be tested, the levels (steps) which are expected to have a measurable effect on the goal function and the goal function itself which can be a single parameter (e.g. strength) or a combnation of variosu factors (usually in normalized form and possibly with various weight factors). Some examples on concrete: http://www.wseas.us/e-library/conferences/2011/Florence/HEAFLU/HEAFLU-14.pdf
http://fire.nist.gov/bfrlpubs/build98/PDF/b98071.pdf
http://fib.bme.hu/proceedings/shakhmenko.pdf
https://www.linkedin.com/pulse/design-experimentsdoe-concrete-mix-uttam-biswas
http://gato-docs.its.txstate.edu/jcr:e874a385-e7cd-40ca-8f9a-c84f84655500/IE%204310%20Semester%20Project%20Cement%20Mix%20Project.pdf
and you can find much more using Google. Good luck
Hi Risselle,
In that circumstances, to explore structural differences and similarities in multivariate multiblock data, you can attempt use multiblock component analysis and factor analysis.
Ex. Principal component analysis on each data block separately, simultaneous component analysis, clusterwise simultaneous component analysis.
Plenty of software is available for fitting this solution.
This multi-block component analysis (MBCA) software can be downloaded from (http;// ppw.kuleuven.be/okp/software/MBCA/) a standalone application that can be run on windows computer.
Best wishes
Jayanta Kumar Maji
ANOVA can be used for this purpose, for doing ANOVA analysis you can choose SPSS software, its very easy
Interesting discussion! Thank you for sharing all these responses.
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