| Title |
An Experimental Study on the Properties of High-Strength Lightweight Concrete using Recycled Aggregates |
| Keywords |
EPS waste ; recycled coarse aggregate ; high-strength lightweight concrete |
| Abstract |
This study is to investigate the properties of high-strength lightweight concrete using recycled EPS ingot as coarse aggregate and to set basic data of the efficient mixing design for making high-strength lightweight concrete.
The condition of the most efficient mix design for making high-strength lightweight concrete is that under the replacement ratio of over 60%. From the result of the experiment under conditions, we could make the concrete whose qualities are unit weight of less 1.99t/㎥, and compressive strength of over 315㎏f/㎠ when the cure duration is 28 days. Especially, in case of replacement rate is 100%, thermal conductivity is decreased at 53.9%.
Being replaced with silica fume among the admixture additives, unit weight, compressive strength and thermal conductivity reveals the best quality, and the proper dosage range is 20%. |