by Ace Laboratories | Sep 7, 2022
ASPHALT VISCOSITY TEST DETAILS The asphalt viscosity test method described in ASTM D4402 uses a rotational viscometer to measure a material’s resistance to rotation at a given temperature. A thermal chamber heater is also used to bring the sample up to the appropriate...
by Ace Laboratories | Sep 7, 2022
Test Details ASTM D5 uses a penetrometer with a standard needle to test semi-solid and solid bituminous materials, such as roofing shingles. A sample is melted, cooled, and subjected to repeat contact with a needle to determine its penetration value. Different samples...
by Ace Laboratories | Sep 7, 2022
Test Details Unlike substances such as water or plastic, bitumen does not have a clearly defined melting point. In many applications, it is vital to know the temperature threshold at which the material may soften enough that product performance could be impacted. The...
by Ace Laboratories | Sep 7, 2022
Test Details The Solar Reflectance Index (SRI) is an objective measurement of how a given surface reacts to heat. This may include the surface temperature of the material, how much heat is reflected away from the material, and how much heat is absorbed. ASTM E1980 is...
by Ace Laboratories | Sep 7, 2022
Test Details ASTM C1371 uses data captured by a portable differential thermopile emissometer to quantify the emittance of materials with a thermal conductance of 1100 W m-2 K-1 or greater, near room temperature. Many opaque roof materials are assessed using the...
