Laboratory for Building Physics

Laboratory for Building Physics at the WiB

The Building Physics Laboratory of the Institute for Materials in Building (WiB) specializes in the characterization of building materials in terms of building physics. Here, WiB staff deal with the building physics of materials and analyze material interactions with the surrounding heat and moisture in suitable test setups.

Our laboratory for building physics is well equipped and offers a multitude of examination methods. Different “classical” parameters (thermal insulation properties, equilibrium humidity) are extended by more complex examination possibilities.

Our equipment:

Differential Scanning Calorimetry (DSC)

Dynamic Vapor Sorption Analysis (DVS)

Single-plate thermal conductivity meter

Heatflowmeter

Hot Disk

Impact resonance measuring device

Thermogravimetric analysis (TGA)

Differential Scanning Calorimetry (DSC)

Model:

214 Polyma Netzsch

Short description:

Differential Scanning Calorimetry (DSC) is a thermal analysis method for measuring the amount of heat released or absorbed by a sample during heating, cooling or an isothermal process. In building physics, the method is used, among other things, to determine the melting and glass transition temperatures or the specific heat capacity.

Measurement of:

Char. Temperatures, enthalpies, crystallinity, oxidation stability, degree of cure, eutectic purity, specific heat, molecular weight distribution

Supported standards:

DIN EN ISO 11357, ASTM D3417, ASTM D3418, ASTM D4591, ASTM E793, ASTM E794, ASTM E1356, ASTM F2625, DIN 51007, DIN 53545, EN 61074 (IEC 1074), IEC 1006, ASTM D3350, ASTM D3895, DS 2131.2, DIN EN 728, ISO 11409, DIN 65467

Dynamic Vapor Sorption Analysis (DVS)

Model:

SPSx-1µ High Load (proUmid)

Short description:

With the help of the “Dynamic Vapor Sorption Analysis” (DVS) it is possible to determine the equilibrium moisture dynamically. The method of dynamic water vapor sorption is used to investigate the moisture-induced behavior of materials. In building physics, the method is used to investigate the sorption and, in particular, also the desorption of insulating materials and building materials such as concrete, plasters or wood-based materials.

Measurement of:

Sorption behavior, desorption behavior, water vapor diffusion properties, equilibrium moisture content

Single-plate thermal conductivity meter

Model:

λ-Meter EP500 (Lambda-Messtechnik)

Short description:

With the aid of a single-plate thermal conductivity meter, absolute value measurements are carried out according to the so-called single-plate method. In this way, the thermal conductivity of insulation and building materials can be measured.

Measurement of:

Thermal conductivity. Thermal resistance, k-value, U-value

Supported standards:

ISO 8302, EN 1946-2, EN 12664, EN 12667, EN 12939, ASTM C177, DIN 52612

Heatflowmeter

Model:

HFM 446 (Netzsch)

Short description:

With the aid of heat flow meters, the plate method is used to determine the thermal conductivity for insulators. In addition to measuring the effective thermal conductivity, the specific heat capacity (cp) can be measured.

Measurement of:

Effective thermal conductivity, specific heat capacity

Supported standards:

ASTM C518, ASTM C1784, ISO 8301, DIN EN 12664, DIN EN 12667, JIS A1412

Hot Disk

Model:

TPS 1500 (C3 Prozess- & Analysetechnik)

Short description:

The hot disk method is also called “Transient Plane Source” (TPS) technique. The method works transient dynamic. During a measurement, the thermal conductivity, the thermal diffusivity and the volume-related specific heat capacity are determined. By individual selection of the sensors and adaptation of the measurement parameters, almost all measurement tasks for thermal conductivity can be solved. Thus, measurements on powders, bulk materials, granulates, liquids or thin layers and films as well as anisotropic samples are also possible.

Measurement of:

Thermal conductivity, thermal diffusivity, heat capacity

Supported standards:

ISO 22007-2

Impact resonance measuring device

Model:

RA 100 Concrete (Lang Sensorik)

Short description:

With the aid of the "impact resonance measuring device, the non-destructive, rapid determination of compressive strength and modulus of elasticity on cement, mortar and concrete samples is possible.

Measurement of:

Compressive strength, dynamic/static modulus of elasticity

Dynamic Vapor Sorption Analysis (DVS)

Model:

STA 449 F5 Jupiter (Netzsch)

Short description:

Simultaneous Thermal Analysis (STA) refers to the simultaneous application of thermogravimetry (TG) and differential thermal analysis (DTA) to the same sample in the same instrument. The measurement conditions in STA are completely identical for the TG and DTA signals.

Measurement of :

Mass changes, temperature resistance, oxidation/reduction behavior, decomposition, corrosion, compositional analysis.

Supported standards:

ISO 11358, ASTM D3895, DIN 51004, DIN 51006, DIN 51007