JCI Annual Convention in HAKATA

Presentation information

第38回コンクリート工学講演会

A.Material & Construction » Frost damage/ Alkali silica reaction

Frost damage Ⅱ/ Alkali silica reaction Ⅰ

Thu. Jul 7, 2016 10:45 AM - 12:15 PM Room 5 (4F 412)

座長:緒方英彦(土木), 阿波稔(建築)

[1166] MESOSCALE FROST DAMAGE SIMULATION BASED ON COUPLED HEAT AND MOISTURE TRANSFER OF MORTAR WITH RBSM

Zhao WANG1, Dawei ZHANG2, Fuyuan GONG3, Tamon UEDA1 (1.北海道大学 2.Zhejiang University 3.東京大学)

Keywords:coupled heat and moisture transfer, cracking, frost damage, mesoscale simulation

Frost damage of mortar and concrete is an important issue for structures in some cold and wet areas. This paper presents a precise simulation work considering non-uniformly distributed moisture and heat field. Coupled heat and moisture governing equations with ice formation are applied into a discrete numerical method (RBSM). Water penetration profile and thermal lag matches the experiment evidence well. Finally, deformation and cracking at different locations of the mortar specimen due to freeze and thaw cycle (FTC) are simulated, which happens non-uniformly in target specimens.