STUDY ON EFFECTUAL APPLICATIONS OF CRASHED INGOT REDUCED SCRAPPED EPS AS LIGHTWEIGHT AGGREGATE OF CONCRETE

碎锭还原废旧EPS作为轻骨料的有效应用研究

• 批准号: 13650511
• 负责人: KASAI Tetsurou
• 金额: $ 0.38万
• 依托单位: TOKAI UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-13650511/
• 关键词: Recycle; Scraped EPS; Ingot; Lightweight aggregate; Lightweight aggregate concrete; Thermal conductivity; Porous concrete; 廃発砲スチロール; 軽量粗骨材

This research describes methods to make effective use of the scrapped expanded polystyrene (EPS) for lightweight aggregate of concrete. The mix proportion, the mechanical properties and thermal properties of concrete used the lightweight aggregate that was reproduced from scrapped EPS ingot were experimentally investigated.The main conclusions in this research are summarized as follows;(1) We can manufacture the lightweight concrete that the compressive strength is 15 to 33N/mm^2 and the unit weight is 1.76 to 1.83t/^m3 as using this EPS lightweight aggregate.(2) The thermal conductivity of concrete using EPS ingot lightweight aggregate is less than that of concrete using normal-weight aggregate and light-weight aggregate.

本研究描述了有效利用废弃发泡聚苯乙烯（EPS）作为混凝土轻骨料的方法。对报废EPS锭再生轻骨料混凝土的配合比、力学性能和热性能进行了试验研究。本研究的主要结论如下：(1)可以制备抗压轻骨料混凝土。采用该EPS轻骨料，强度为15～33N/mm^2，单位重量为1.76～1.83t/^m3。 (2)采用EPS锭轻骨料混凝土的导热系数小于EPS轻骨料混凝土的导热系数。混凝土采用普通骨料和轻骨料。