Scholarlink

Honeycomb defects in reinforced concrete (RC) columns can affect structural performance, particularly in high-rise building construction. This experimental study investigate the effect of delayed rectification on the structural performance of RC columns with honeycomb defects. Two rectification methods (grouting and patching) and materials (SikaGrout®-215 and MapeiGrout 218) were used to repair honeycomb defects at different days intervals after removal of formwork. A total of 14 scaled-down specimens including control specimens and honeycomb RC columns with dimensions 350 mm × 150 mm × 2000 mm were cast in this study. The RC column with honeycomb defects were rectified at three different intervals days: immediately, 7 days and 14 days after formwork removal. The results showed that RC column repaired immediately after removal of formwork using the grouting method demonstrated higher compressive strength compared to those repairs using the patching method. This suggested that early intervention of repairing the defect combined with an effective grouting technique significantly enhances the structural recovery of honeycomb RC column.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Experimental Investigation on Delay Rectification of Honeycomb Defect in Reinforced Concrete Column

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Nur Syazlina Moh Samsudin,
  • Nursafarina Ahmad

摘要

Honeycomb defects in reinforced concrete (RC) columns can affect structural performance, particularly in high-rise building construction. This experimental study investigate the effect of delayed rectification on the structural performance of RC columns with honeycomb defects. Two rectification methods (grouting and patching) and materials (SikaGrout®-215 and MapeiGrout 218) were used to repair honeycomb defects at different days intervals after removal of formwork. A total of 14 scaled-down specimens including control specimens and honeycomb RC columns with dimensions 350 mm × 150 mm × 2000 mm were cast in this study. The RC column with honeycomb defects were rectified at three different intervals days: immediately, 7 days and 14 days after formwork removal. The results showed that RC column repaired immediately after removal of formwork using the grouting method demonstrated higher compressive strength compared to those repairs using the patching method. This suggested that early intervention of repairing the defect combined with an effective grouting technique significantly enhances the structural recovery of honeycomb RC column.