Evaluation of Permeability Tests of Surface Layer of Concrete of Various Composition

Evaluation of Permeability Tests of Surface Layer of Concrete of Various Composition

Paper in proceedings (conference paper)

Concrete is one of the most common building materials and its durability has been observed with increased attention. It can be said that concrete durability is closely connected with permeability and, generally speaking, the quality of its surface layer. Evaluating the quality of the surface layer of concrete is a rather difficult issue which can be addressed in different ways. The authors of this paper focus on three internationally used methods – TPT, GWT and ISAT. The paper sums up the results of the experiment whose goal was to investigate the influence of concrete composition on the outputs of the above-mentioned methods. For the purposes of the experiment, specimens were made using 9 mixtures which differed only in the amount of cement and plasticiser, i.e. water/cement ratio. The experiment was designed and evaluated using the statistical methodology DOE (Design of Experiment). Next, the paper discusses a new view of statistical evaluation of test results of the methods described above.

Concrete is one of the most common building materials and its durability has been observed with increased attention. It can be said that concrete durability is closely connected with permeability and, generally speaking, the quality of its surface layer. Evaluating the quality of the surface layer of concrete is a rather difficult issue which can be addressed in different ways. The authors of this paper focus on three internationally used methods – TPT, GWT and ISAT. The paper sums up the results of the experiment whose goal was to investigate the influence of concrete composition on the outputs of the above-mentioned methods. For the purposes of the experiment, specimens were made using 9 mixtures which differed only in the amount of cement and plasticiser, i.e. water/cement ratio. The experiment was designed and evaluated using the statistical methodology DOE (Design of Experiment). Next, the paper discusses a new view of statistical evaluation of test results of the methods described above.

concrete, permeability, durability, concrete surface layer

concrete, permeability, durability, concrete surface layer

MISÁK, P.; PŐSSL, P.; KOCÁB, D.; ROZSYPALOVÁ, I.; STAVAŘ, T.

2017

30.09.2016

Trans Tech Publications Ltd

Switzerland

978-3-03835-719-3

Proceedings of the 17th Conference on the Rehabilitation and Reconstruction of Buildings (CRRB)

1013-9826

Key Engineering Materials (print)

2016

714

Swiss Confederation

171

178

8