Mechanical performance and field application of low cement based concrete under compaction energy

초록

In order to make bicycling more popular, which generates no CO2 emission, the construction and connection of a bike road network are very necessary. Among various bike path pavement construction methods, this study chose a roller compacted concrete method that uses low cement and is environment-friendly. Roller compacted concrete, a durable paving material that can carry heavy traffic loads, has been developed as a fast, economical construction method. This study is to investigate the mechanical performance of the roller compacted concrete as a bike path road pavement. Through an analysis of the experimental results, mechanical performance and compaction rate under different compaction methods were studied for the field application. Based on the observations from compressive strength tests, it is recommended that the mixes for the low cementitious materials-based roller compacted concrete pavement have the cementitious binder content greater than 250 kgf/m(3). In order to provide appropriate workability the water content should be at least greater than 120 kgf/m(3) when the binder content is greater than 250 kgf/m(3). When the compaction method suggested herein is applied it is strongly recommended that the low cement based roller compacted concrete pavement has its compaction ratio greater than 93%.

키워드