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Corrosion of rebars in reinforced concrete structure is a big universal problem created by saline water ingress causing rebar and other metal structural member to corrode. The deterioration of concrete structures due to the harsh environment conditions leads to the deterioration of the reinforced concrete performance structure, and the premature deterioration of the structure before completing due to carbonation or the chloride content of the future services is expected to be the primary concern for engineers and researchers. Progress of corrosion location cannot be visually evaluated until the point when crack or a delamination is appearing. Therefore, in the study, the Ground Penetrating Radar (GPR) is used to investigate the artificial rebar corrosion damage on steel rebars. The methods showed the artificial rebar corrosion damage can be detected and quantified without damaging the surrounding concrete material. GPR showed the potential on detecting rebar corrosion damage on large areas and in a rapid manner.

Abstract-Plain wall system is a system suitable for use in the field of high rise building where the main load resisting system is in the form rigidly connected wall slab member. Concrete vertical walls may serve both architecturally partitions and structurally to carry gravity and lateral loading. Moment transfer of joint is an important aspect for proper structurally functioning of plain wall system. Hence, the main aim of this study is to review literature from other researchers on plain wall system. Index Terms-Plain wall system, high rise building and moment.

Plain wall system is highly suitable to be used with reinforced concrete as its building material. Concrete vertical walls may serve both architecturally partitions and structurally to carry gravity and lateral loading. Moment transfer of joint is an important aspect for proper structurally functioning of plain wall system. Hence, the aim of this study is to investigate experimentally the effect of reinforcement details in the wall on bending capacity for support stiffness in plain wall system in Malaysia. A total of six wall specimens were tested. Three of this specimens consisted single layer of rebar while another three specimen consisted of double layer of rebar. The size of the plain wall’s specimens is 1000mm in length, 1080mm in width, 1000mm in height and 80mm in thickness. The average concrete strength was 23.49MPa with Grade 30N/mm2 and the average yield strength of R5 bar was 817MPa. The bending capacity at failure for single layered of rebar in wall for specimen 1, 2 and 3 were found to be 3.59kNm, 3.81kNm and 3.15kNm, respectively. The bending capacity at failure for double layered of rebar in wall for specimen 1, 2 and 3 were 5.50kNm, 6.31kNm and 7.00kNm, respectively. Based on the results, specimens consisted of double layered of rebar in wall is found to provide higher bending capacity to the joint of plain wall system in the range from 56.25% to 98.86% compared with single layered of rebar in wall.

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