Lab practical training

During the first and second semesters, all students must complete three lab sessions as part of the Building Material Technology 1 module and three lab sessions as part of the Building Material Technology 2 module. During these lab practicals, students will cover all the essential materials and their properties.
Students will work in small groups (three people) to independently research, prepare, and conduct the practical tests. The analysis of each test concludes with a scientifically substantiated lab report. The lab practicals are part of the final exam in building material technology.

Summer semester

• Grain size distribution and sieve tests on aggregates
• Determining grain gross density (measuring cylinder and pycnometer)
• Testing the grain shape
• Determining the cement strength of prisms. Manufacturing the test pieces, testing and evaluating.
• Determining bitumen needle penetration values
• Manufacturing fresh concrete, including compliant production of test pieces.
• Influence of superplasticizers on consistency
• Spread and compression consistency tests, setting the concrete
• Determining the bulk density and air content of fresh concrete
• Determining the compressive strength of concrete, including proof of conformity
• Determining the splitting tensile strength of concrete cylinders, including proof of conformity
• Manufacturing a RILEM masonry test piece: mortar groups, brick sizes, joints
• Testing masonry compressive strength, breakage failure
• Creating and testing self-compacting concrete: V-funnel test, slump flow test
• Structure strength: Non-destructive test using a rebound hammer
• Non-destructive test on concrete covering using a profometer
• Determining concrete carbonation depths

The subjects below are being covered in this year’s course:

Winter semester

• Determining porosity under atmospheric pressure
• Capillary absorption with mathematical evaluation of the water absorption coefficient
• Determining bulk density using static assessment of all (approx.) 30 individual results and checking for normal distribution, calculating standard deviation.
• Steel tensile testing and determining the elastic modulus. Stress-strain diagram.
• Determining the compressive strength of bricks
• Moisture testing methods: Darr method, CM device, electric resistance measurement, capacitive measurement. Practical performance and comparison of various measurement methods.
• Determining the specific surface of cement using the Blaine Fineness method
• Determining the bulk density of cement using Böhme inlet apparatus
• Determining the compressive strength of wood depending on the wood humidity
• Determining the bulk density and the cavity volume of vertical core bricks
• Determining the bending tensile strength of building materials
• Thermographic measurement of buildings and parts of buildings

  

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