KELAUTAN, SEMARANG – Shell Waste Paving is an environmentally friendly paving block from shell waste. Has a function as a substitute for sand which is expected to have the same material structure. This product is to reduce the excessive exploitation of natural sand resources. With the right composition, paving blocks from shells will last as well as sand paving blocks. Marine Science Student Research Team, Diponegoro University, Sastra Jendra Hayuningrat (IK 2018), Abista Ahmad Romadoni (IK 2018), Annisa Amalia Febrianti (THP 2018), Husein Alfarizi (Ose 2018), Satria Ginanjar (Ose 2018) won a silver medal on the 31st International Invention, Innovation & Technology Exhibition 2020 (ITEX 2020) Malaysia