TY - CONF T1 - Flexural behaviour of the functionally graded concrete beams using two-layers and three-layers configuration JO - IOP Conference Series: Materials Science and Engineering UR - http://dx.doi.org/10.1088/1757-899x/669/1/012054 PY - 2019/11/01 AU - Pratama MMA AU - Vertian T AU - Umniati BS AU - Yoh WH ED - DO - DOI: 10.1088/1757-899x/669/1/012054 PB - IOP Publishing VL - 669 IS - 1 SP - 012054 EP - 012054 Y2 - 2025/05/29 ER -