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

本研究介绍了如何有效利用废弃的发泡聚苯乙烯(EPS)作为混凝土的轻骨料。通过试验研究了废旧EPS钢锭再生轻骨料混凝土的配合比、力学性能和热工性能。主要研究结论如下：(1)利用该EPS钢锭轻骨料可以生产抗压强度为15~33N/mm~2、容重为1.76~1.83t/m~3的轻骨料混凝土。(2)EPS钢锭轻骨料混凝土的导热系数小于普通骨料和轻骨料混凝土。

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.