DAMAGES OF REINFORCED CONCRETE UNDER SYNERGISTIC EFFECTS OF CYCLIC FREEZE-THAW, DEICING-SALT ATTACK, REBAR CORROSION AND BENDING LOAD

Huang Pengfei; Bao Yiwang; Yao Yan

doi:10.13204/j.gyjz200505017

Volume 35 Issue 5

Dec. 2014

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Huang Pengfei, Bao Yiwang, Yao Yan. DAMAGES OF REINFORCED CONCRETE UNDER SYNERGISTIC EFFECTS OF CYCLIC FREEZE-THAW, DEICING-SALT ATTACK, REBAR CORROSION AND BENDING LOAD[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(5): 63-67. doi: 10.13204/j.gyjz200505017

Citation:

Huang Pengfei, Bao Yiwang, Yao Yan. DAMAGES OF REINFORCED CONCRETE UNDER SYNERGISTIC EFFECTS OF CYCLIC FREEZE-THAW, DEICING-SALT ATTACK, REBAR CORROSION AND BENDING LOAD[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(5): 63-67. doi: 10.13204/j.gyjz200505017

Citation:

Huang Pengfei, Bao Yiwang, Yao Yan. DAMAGES OF REINFORCED CONCRETE UNDER SYNERGISTIC EFFECTS OF CYCLIC FREEZE-THAW, DEICING-SALT ATTACK, REBAR CORROSION AND BENDING LOAD[J]. INDUSTRIAL CONSTRUCTION, 2005, 35(5): 63-67. doi: 10.13204/j.gyjz200505017

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DAMAGES OF REINFORCED CONCRETE UNDER SYNERGISTIC EFFECTS OF CYCLIC FREEZE-THAW, DEICING-SALT ATTACK, REBAR CORROSION AND BENDING LOAD

doi: 10.13204/j.gyjz200505017

1.
China Building Material Academy Beijing 100024

Received Date: 2004-09-28
Publish Date: 2005-05-20

Abstract

Abstract

The damage experiments of reinforced concrete samples under synergistic effects of cyclic freeze thaw, deicing salt attack, rebar corrosion and bending load were investigated using a comprehensive experimental method. Synergistic effects of these factors on the damage evolvement of the reinforced concrete was studied by measuring the change of dynamic modulus, rebar strain and concrete strain. Experimental results showed similar rule in damage evolvement,but different damage rate between the normal strength concrete (C45) and the high strength concrete (C70). The dynamic modulus of the reinforced concrete degraded with increasing effecting factors. Meanwhile, an interesting phenomenon is revealed that the amplitude of cyclic strains increase with the numbers of freeze thaw cycles within a fixed temperature difference.
- reinforced concrete freeze thaw and deicing,
- salt attack,
- bending load,
- synergistic effects,
- damage evolution

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References(19)

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