Under the seal

- Nov 02, 2019-

Under the seal. It is mainly used for highways in rainy and humid areas, the asphalt pavement with large gap and serious water seepage, or the asphalt pavement which cannot be paved in time after laying the base course and needs to be open to traffic, it is advisable to lay the lower sealing layer after spraying through the layer of oil. Under seal coat of asphalt oil-stone ratio is 7.5% ~ 13.5%, the dosage of stone is 5.4 kg/m2 ~ 8.1 kg/m2, stone specifications for grading Ⅱ mineral aggregate, mixing paving construction technology of slurry seal machine.