台灣地區近年來的骨材來源一直以河川砂石為主，陸上砂石為輔。自民國92起陸上砂石開採比率首度超過河川砂石，達到五二％比四四％的局面。未來政府希望河川砂石生產量在民國95 年時降低至三十%，民國97 年時再降至二十四%。另外積極計劃廣開其它砂石料源供給管道，以穩定砂石供需之平衡。以民國92年為例進口砂已占全台灣砂石使用量的十五點七，其中大陸進口砂占百分之九十以上。因此很明顯地台灣地區未來的各項建設營造用砂會以陸上砂石為主河川砂石為輔而進口砂為調節性機能。有鑑於此本研究針對大陸廣東省進口骨材(河川砂石)(由高雄港)、國內河川骨材(高屏溪上游荖農溪一帶)和陸上骨材(雲林縣古坑鄉農地砂石)作為研究比較項目，以傳統密級配(公路局IVC級配)、瀝青黏結料為AC-20，而採用的配合設計方法為Superpave Level 1，分別求出不同骨材級配相同之最佳瀝青含量，並製作SGC試體進行以下幾項成效試驗：間接張力試驗、洛杉磯磨耗試驗、車轍試驗和殘餘間接張力試驗。試驗結果可歸納出下列幾點：
1、由於骨材來源不同，所求得的最佳瀝青含量也有些微差異，最明顯的因素為骨材比重;在相同重量下，比重較輕的骨材體積最大，相對的須要包裹的瀝青也最多。
2、根據本研究所進行的四項成效試驗結果中得知，大陸骨材除了車轍試驗結果稍比陸上骨材差一些外，其餘三項表現最佳。
3、河川骨材的各項試驗結果都介於大陸骨材和陸上骨材之間，表現優異。
4、對陸上骨材而言，除車轍試驗結果表現最好，其餘較差。
5、本研究只進行一次循環凍融，對各骨材瀝青混凝土的殘餘間接張力結果無明顯差異。
6、從本研究有限的成效試驗結果得一結論：以上三種砂石來源皆適合作為瀝青混凝土的骨材。

　The major available aggregate sources of Taiwan have been relying on river, land aggregate just acts as a complement in recent years. The use of land aggregate exceeded river aggregate leading by 52% to 44% for the first time in 2003. The government hopes the amount of production of river aggregate will be reduced to less than 30% in coming next few years. At the same time, imported aggregate are also playing an important role in order to stabilize the balance of aggregate supply and demand. The amount of import aggregate have been growing every year since 1997 and raising to 15.7% in the year of 2003. Obviously, the aggregates used by construction have to primarily rely on land aggregate, secondly river aggregate and followed by imported aggregate in Taiwan in the future.

　A study was conducted to compare imported aggregate (river) from Guangdong Province, China, local river aggregate from southern part of Taiwan and land aggregate from central Taiwan. This research is devoted to the comparison of different aggregate sources by using AC-20 asphalt binder, IVC DGAC, grade of Highway Administration Bureau mix and Superpave Level 1 mix design procedures were implemented.

　Statistical analyses of the test data obtained by the performance tests indicate significant difference in Indirect Tension, Cantabro test and TSR of IVC grade mixtures. The result of rutting resistance of the three asphalt concrete mixtures were also significant by comparing rut depths. All of the performance tests were acceptable in accordance with related specifications.

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