In the early 50s, the United States carried out relevant research on asphalt mixture preparation of shale ceramsite, and successfully applied to the slurry seal, surface treatment, such as hot mix, cold mix pavement and bridge deck structure, and formed a design manual of shale ceramsite asphalt mixture. The test shows that the asphalt concrete pavement with shale ceramic preparation has the advantages of anti slide durable, good durability, safety and economy etc..

The research of ceramsite asphalt ceramsite concrete in our country started late. Li Cuibin, Liu Qihua and others began to study the asphalt ceramsite concrete in 2003. With 5 ~ 20mm ceramic, granite stone, sand, slag, asphalt oil using Tipco modified asphalt. Using AC-201 as a mix design target. In all kinds of indoor aggregate ratio determined in accordance with the test mix, to estimate the optimum dosage of asphalt 6.2%, 0.5% oil amount used to determine the optimum asphalt content of asphalt mixture was 6.2% for interval trial mix 5 groups of different asphalt content. The mechanical properties of ceramsite asphalt concrete, Marshall stability and flow value are obtained from the test results. The density of granite stone aggregate and ceramsite aggregate AC-201 asphalt concrete is 2.377kg/m3, 1.896 kg/m3 respectively. It can be seen that its density is reduced by 20%.

Wang Fazhou and Zhang Yunhua of Wuhan University of Technology have made asphalt ceramsite concrete by crushing 900 grade broken high strength shale ceramsite, SBSI-D modified asphalt, stone chip, machine-made sand and limestone powder. The aggregate is composed of high-strength shale ceramsite, stone, sand, slag, according to engineering design gradation range, by adjusting the proportion of all kinds of mineral aggregate gradation curve, obtained, when the gradation curve near the engineering design grading median without zigzag too much cross and in the 0.3 to 0.6 range no "Hump" at various aggregate ratio for the aggregate volume ratio.

They take into account the difference between ceramsite and ordinary aggregate density, therefore, when using high strength shale ceramsite to prepare asphalt mixture, the mixture ratio design of asphalt mixture must be adjusted properly. In accordance with the standard design method, the mixture prepared by various types of mineral mixture is a suspended dense structure, which is given by the AC design, the upper and lower limit of the gradation range and the median value. When the asphalt mixture is prepared by using ceramsite, the AC type ceramsite asphalt mixture prepared by the standard design method is not a suspended dense structure. This is because about the density of ceramsite only ordinary aggregate density of 60%, the same quality of pottery volume is about 1.67 times that of ordinary aggregate ceramsite, compared to ordinary aggregate occupy more volume in the mixture of relatively fine aggregate share in mixture volume is reduced, so the mixture VMA will increase, we need more asphalt aggregate filling gap, it will increase the aggregate ratio, resulting in oil consumption increase, raising the cost of. In order to solve this problem, a volumetric mass conversion method is proposed. This method is obtained according to the design range with gradation ratio as preparing aggregate volume, then the volume divided by various aggregate volume multiplied by their gross volume relative density and aggregate ratio, specific conversion formula:

After determining the ratio of aggregate aggregate, the volume ratio of ceramsite and aggregate is converted into quality by using the formula mentioned above, so that the test is convenient. Considering the surface texture structure of ceramsite and aggregate synthesis gross volume relative density is low, increasing asphalt content, according to the actual engineering optimum asphalt content, asphalt aggregate ratio, 6%, 5.5% choose 6.5%, 7% and 7.5%, according to the ratio of Marshall test with quality, calculated the optimum asphalt aggregate ratio is 6.2%. Rutting test, freeze thaw split test and Marshall test were carried out respectively on Rutting specimens and Marshall specimens, respectively, with the best ratio of 6.2% to stone. The test results show that asphalt ceramsite concrete has good road performance.