1. General concept of surrounding rock stress The surrounding rock stress refers to the redistributed stress in the surrounding rock; the phenomenon that the surrounding rock stress has high stress is called stress concentration. The ratio of the surrounding rock stress to the original rock stress is called the stress concentration factor. The surrounding rock stress is a new stress state after the original rock stress is disturbed. 2. Characteristics of stress distribution of surrounding rock If the vertical original rock stress is too large, it is advantageous for the roadway to have a vertical axis. For linear roadways, there is generally a serious stress concentration at the corners of the section. The longer the straight part of the roadway, the more likely the tensile stress will occur. The higher the original rock stress, the larger the plastic zone range; the plasticity range also increases with the increase of the roadway section. When the maximum original rock stress direction is consistent with the long axis of the roadway, it is most advantageous for roadway stability; the maximum stress and the horizontal alignment of the roadway axis are the most unfavorable. Accelerator-ZDEC-80GE is a type of rubber accelerator that is used in the manufacturing process of rubber products. It contains the active ingredient zinc diethyldithiocarbamate (ZDEC) at a concentration of 80%, which is pre-dispersed in a polymer carrier. Accelerator ZDEC-80GE,Pre-dispersed Rubber Accelerator,Rubber Accelerator ZDEC Supply,Accelerator ZDEC, Accelerator ZDBC-80GE F140 - Polymer Additives GuangDong DuBa New Material Technology Co.,LTD , https://www.gddubachem.com
Rubber accelerators are chemicals that are added to rubber compounds to increase the rate of vulcanization or curing. The use of Accelerator-ZDEC-80GE offers several benefits over using ZDEC in its powdered form. Firstly, it is easier to handle and incorporate into the rubber compound, as it is already pre-dispersed. This can save time and reduce the risk of operator error. Additionally, the pre-dispersed form provides a more consistent distribution of the active ingredient throughout the rubber, which can result in more uniform curing and better mechanical properties in the final product.