The main dangers of asphalt tests are burns and smoke. For asphalt-related tests, if the temperature is relatively high, it is recommended to wear double gloves, with a thick layer of heat-insulating gloves on the outside and a layer of wire gloves on the inside. The smoke volume of conventional asphalt and asphalt mixtures can basically be handled by ordinary masks. When performing extraction tests, try to use a gas mask, as trichloroethylene is highly toxic.

In asphalt experiments, special attention should be paid to the cleaning of molds and equipment after the experiment. Our laboratory mainly studies the modification and anti-aging of asphalt, and does not make many mixtures. After the four major performance tests of asphalt are completed, the test mold is generally boiled with hot diesel, and the asphalt remaining on the mold is cleaned by the mutual dissolution of organic matter. Therefore, fire prevention must be paid attention to during the cleaning process! ! (Because open flame heating is too dangerous, our research group uses an induction cooker, but the container must be closed during the heating process to reduce the area in contact with the air)
The asphalt container can be cleaned with slightly hot diesel, but when subsequent experiments are more concerned about softening point data (such as waterproof modified asphalt, etc.), the heated asphalt tank must be wiped with newspaper. Since there must be asphalt residue inside the asphalt tank after use, the temperature rises quickly after the asphalt tank is heated, and you will find that the tank will emit yellow smoke. This is asphalt smoke, which is relatively toxic, and ordinary masks, even ordinary N95 masks, have poor protection against asphalt smoke (N95 masks have poor protection against oily gases). It is recommended to use 3M 8246CN masks or masks that protect against oily gases;
In the asphalt experiment, it is best to prepare a set of old clothes. Because you will find that after a few days of experiments, black spots will be stained on your clothes. In summer, you must wear long pants for experiments.
After each experiment, clean the experimental instruments in time, on the one hand to keep the laboratory clean, and on the other hand to prevent the residue from affecting the results of the next test. It is difficult to clean it after years of accumulation.