Problems of quality control in reinforced concrete road work in real estate projects

Abstract

Currently, the developments of real estate projects in Bangkok and vicinity areas require public utilities in every project. Public utilities include 7 topics which are road pavement, footpath, V rail sidewalk, drainage and manhole, landscape work, waste water treatment pond system, and clubhouse. If the constructions of these facilities do not meet require standards or get damages before delivery to the housing juristic person, then problems arise to the developer. This research aims to study the quality control of reinforced concrete road work in real estate projects and propose quality control procedures regarding the road work remain it has the most problems. This research collects data from 6 real estate projects that have utility problems. The result of this study revealed 4 construction items that are frequently damaged. They are road pavement, footpath, V rail sidewalk, and drainage and manhole. Road has the highest defect cost problems before delivery to the housing juristic person. Defect cost for Road is 75% of average total defect costs. The results from the interview and analyzed by a fishbone diagram revealed various causes of damages on road pavement. they are problems from method of execution design and personnel this paper presents guidelines and methods to reduce problems in future housing estate projects.