STUDY ON DEVELOPMENT OF SOIL IMPROVEMENT PILE METHOD USING RECYCLED SOIL
Keywords:Resources consumption, Recycled construction sludge, Ground improvement, Electrical resistivity, Concrete bleeding
With the development of building technology in recent years, the effect on environmental degradation has been a major concern. This study was conceived in a bid to further promote environmental sustainability through reasonable resources consumption pattern in line with The United Nation sustainable development goals. The purpose of the study is to examine the feasibilities and efficiency of developing a ground improvement method using recycled construction sludge. The paper describes an environmentally friendly construction method in which reclaimed soil obtained by drying sludge from construction sites can be used for soil improvement piles. Although the occurrence of excessive bleeding and inadequate methods of evaluating the compressive strength during curing remains a prominent issue in the proposed use of this recycled material, from the results of this study it was deduced that with the addition of 2% sodium bicarbonate additive to the resulted concrete mix, the amount of bleeding was adequately controlled. The use of an ICT device for measuring electrical resistivity for enhanced quality control and quality assurance was also introduced for adequate prediction of properties such as strength at any curing age of the improved soil. The study will adequately recommend the use of the new improved soil for improvement piles in residential buildings.