prof. Ing. Rostislav Drochytka, CSc., MBA, dr. h. c.

2. round (applications submitted from 07.11.2016 to 12.12.2016)

1. Application of computer tomography to acoustic testing of building materials

   Acoustic tomography is a method that makes possible to localize inhomogeneities in medium under investigation. The objective of the study consists in calculating cavities in materials by means of acoustic tomography methods and determining the resolution power of these methods.

   Tutor: Martinek Jan, doc. Mgr., Ph.D.

2. Investigation of Microstructural Parameters of Modern and Historical Masonry Material

   In Czech Republic there are historical brick buildings which show strong effects of deterioration due to weathering. For restoration purposes, new replacements materials (bricks) must be chosen. Therefore, it is important to know the relation between production technology, raw material and final microstructure of masonry material.

   Tutor: Nevřivová Lenka, Ing., Ph.D.

1. round (applications submitted from 01.06.2016 to 31.07.2016)

1. Application of acoustic methods to assessing the condition of light-weight structural concretes

   The objective of the study consists in the application of acoustic methods, such as the Impact-Echo, acoustic emission and non-linear ultrasonic spectroscopy to a fast non-destructive testing of the condition of light-weight structural concretes. The results of the study will be compared with those obtained by classical methods: concrete compressive and tensile strengths.

   Tutor: Chobola Zdeněk, prof. RNDr., CSc.

2. Application of acoustic methods to assessing the the status parameter lightweight polymer-cementitious repair mortars exposed to high temperatures

   The aim is to use acoustic methods: Impact-Echo, acoustic emission and nonlinear ultrasonic spectroscopy for rapid non-destructive testing status lightweight polymer-cementitious repair mortars exposed to high temperatures. Will be investigated repair mortars polymer cement with modified. The aim of the modification of the composition will achieve the parameters characteristic of fire-resistant repair mortars. They will be used polymeric fibers polyolefin.

   Tutor: Chobola Zdeněk, prof. RNDr., CSc.

3. Study of composite building materials subjected to mechanical loading by means of electromagnetic and acoustic emission methods

   Acoustic (AE) and electromagnetic (EME) emission signal generation accompanies the formation of cracks in electrically non-conducting materials. The effect of the composite materiál composition and charactersitics to the EME and AE characteristics will be studied. The results of this study will be applied to the design of a new diagnostic method.

   Tutor: Chobola Zdeněk, prof. RNDr., CSc.

4. Use of acoustic methods for assessing the effect of constitution of cement composite during degradation induced by temperature increase

   The aim is to use acoustic methods: Impact-Echo acoustic emissions and nonlinear ultrasonic spectroscopy to assess the influence of the composition of the concrete structures of the efficiency degradation due to elevated temperatures. They will be tested concretes with different size fractions of aggregates and type of cement. It will also examine the impact of steel reinforcement.

   Tutor: Chobola Zdeněk, prof. RNDr., CSc.