콘크리트 鋪裝의 初期計測을 통한 初期擧動 特性分析

Analysis of Early Behavior of Concrete Pavement with Initial Measurements

The purpose of this paper is to analysis of initial behavior of concrete pavement with initial measurement strain gauge for concrete pavement at field, and to investigate the field test results for field applicability testing. The early-age behaviors of concrete pavement slabs were measured using the strain gauges. From the slab depths and positions, the outputs from each gauges were recorded at initial curing period. The initial measurement of concrete pavement and check of crack at the joint were performed, the results could be summarized as follows: From the results of concrete strength, compressive strength and flexural strength were showed 271㎏f/㎠, 43㎏f/㎠ respectively. From the tests of early-age strain measurement, it was found that the strain varied at the maximum value of 150μ ε and early behavior of concrete slab was showed a tensile strain. However, for long-term was showed a compressive strain due to dry-shrinkage.