As the main mechanical tool in road construction, road roller is widely used in various road construction. Compaction effect is a very important factor to measure the construction effect. Jinan Road Roller Rental Factory will talk about a problem today -- how good the compaction effect of the road roller is.
1. Influence of soil moisture content on compaction process
In the process of compaction, the water content of soil or material plays a very important role in achieving the compactness. At the construction site, it is difficult to use a certain roller to roll the soil or graded aggregate with too small water content to achieve high compactness; If the soil moisture content exceeds the optimal value, it is also difficult to achieve a greater degree of compaction. Therefore, in special dry and humid areas, when appropriate measures cannot be taken, the requirements for compactness shall not be reduced slightly in actual construction.
2. Impact of compaction work on good moisture content and high dry density
The good moisture content and large dry density of a certain soil or pavement material change with the change of compaction work. For the same soil or the same graded aggregate, when the compaction work increases, the good water content decreases, while the large dry density increases. This is the same rule when rolling with a roller on the construction site.
3. Impact of compaction machinery on compaction
The compaction machinery used has a great influence on the compaction state of subgrade soil and pavement materials under a certain moisture content. The compactness can only be reduced by using a light roller. The use of heavy rollers can achieve greater compactness. The compaction effect of vibratory roller is much better than that of ordinary smooth steel wheel roller with the same quality. Not only is the compactness large, but also the effective compaction depth is large (except for the clay with large water content).
4. Impact of rolling speed on compaction
Rolling speed affects the compaction time of materials in unit area of vibrating wheel set. When the rolling speed is low, the number of vibrations per unit area is more than when the rolling speed is high, so the energy acting on the material to be rolled is more than the former. In fact, the energy transferred to the compacted material layer is inversely proportional to the rolling speed. Assuming that the compaction energy required to make the rolled material layer reach the specified compactness remains unchanged, the number of rolling times will roughly double when the rolling speed is doubled. Go back to Sohu to see more
Today, we mainly introduce several main factors that affect the compaction effect of road roller, such as soil moisture content, thickness of rolling layer, type and function of compaction machinery, rolling times and foundation strength. More relevant content will come to our website http://www.ycgjglcl.com Ask and understand!