リサイクルコンクリート微粉末のモルタルへの有効利用

概要

論文の詳細を見る
Recycling of concrete is urgent for the effective use of natural resources and the "zero emission" of industrial wastes. A lot of studies have been done on the recycled use of coarse and fine aggregate made from old concrete brocks. However, these have been few studies concerning fine powder which is produced when concrete blocks are crushed and which accounts for 30% to 40% of the crushed concrete. In this paper the nature of the cement mortar with the use of fine powder has been examined by the following procedures : 1) : comparison of the rivers sand aggregate and recycled fine aggregate as to their fresh and hardened properties, and 2) : effectiveness of content ratio of fine powder for mechanical properties of cement mortar. From the test results we can confirm the effectiveness of the combinatory use of both recycled fine aggregate and fine powder for cement mortar. We should also consider application of fine powder of recycled for concrete concrete members.
中部大学の論文
2004-12-15