Do you know the reason why sesame ash stone is frozen and cracked? Nowadays, sesame gray stone is becoming increasingly popular in our lives, often installed outside buildings. It not only beautifies our environment but also makes it easier for us to clean the road surface. But many observant friends have found that sesame ash stone can freeze and crack in winter. So, what is the specific reason for this freezing and cracking phenomenon?.
1、 The reason for the frost cracking phenomenon of sesame ash stone. Usually, when the temperature changes, stone undergoes a phenomenon of "thermal expansion and contraction", while the characteristics of water are exactly the opposite. At 4 degrees Celsius, the density of water will increase and water molecules will flow. Water begins to freeze when the temperature ranges from 4 ℃ to 0 ℃, and the water molecules in the ice form an abnormal sequence in a three-dimensional structure. This layout is prone to leaving many "gaps", which can reduce the density of the stone. The experiment shows that the reason why the volume of 1 cubic meter of water increases to 1.10 cubic meters is due to freezing. When the temperature is below 0 ° C, water enters the capillary pores or cracks of sesame gray stone and turns into ice when it cools down. The increase in volume will cause the capillary pores in sesame gray stone to expand. Then, sesame gray stone will absorb more moisture into the capillary pores, further expanding and repeating this process, causing cracks in the expansion of sesame gray stone.
2、 How to avoid frost cracking of sesame ash stone. Water is the main cause of freezing and cracking of sesame ash stone. To effectively prevent the occurrence of freezing phenomenon in sesame ash stone, it is necessary to block water from entering the gaps of sesame ash stone. Therefore, it is necessary to use sesame ash stone curing agent to protect the stone. Protecting the surface of sesame ash stone can more effectively avoid the occurrence of frost cracking. The
The above content is a summary of the causes of frost cracking in sesame ash stone. We need to have a better understanding of the characteristics of sesame ash stone in order to better maintain it and prevent damage caused by environmental factors. If you need to know more about other related issues, please feel free to visit our website frequently for inquiries. We look forward to your visit and sincerely welcome people from all walks of life to come and negotiate.