Seung-Bum Park

TL;DR: In this paper, the possibilities of recycling waste glasses (crushed waste glasses from Korea such as amber, emerald green, flint, and mixed glass) as fine aggregates for concrete were analyzed through basic experimental research.

TL;DR: In this paper, the authors analyzed the properties of strength and expansion of acid-silica reaction in concrete in terms of waste glass content, glass color (brown, green), fibers (steel fiber, polypropylene fiber) and fiber content, in anticipation of reducing ASR expansion and showed that green waste glass was more usable than brown because its expansion was less than that of brown glass.

TL;DR: In this paper, the authors evaluated the physical and mechanical properties and sound absorption characteristics of porous concrete using recycled waste concrete aggregate and found that the noise reduction coefficient was optimum at the void ratio of 25% but the percent content of the recycled aggregate had very little influence on the NRC.

TL;DR: It was confirmed that test specimens were destroyed by aggregate fracture more than binder fracture and interface fracture, and an improvement method in regards to strength has to be discussed such as incorporation of reinforcing materials and improvement of aggregate hardness.

TL;DR: In this paper, a fabrication procedure for lightweight carbon fiber reinforced cement composites (CFRC) has been developed and the optimum proportions of the ingredients are successfully identified based on the test results.