Abstract:
Activities of road construction are known as one major sources of dust occurrence along the construction site also affect those working in such area and people around the construction site. Nowadays, the problem remains unsolved although it gets more concerned. The objectives of this research are (i) to present the process of measurement and analyze the dust occurrence from road construction activities and (ii) to propose the reduction methods of dust occurrence from road construction activities by construction process improvement. The results show that construction activities which are sources of dust occurrence consist of filling activity and grading activity. Average of dust concentration range from 5.16 to 94.07 µg/m3. The quantity of dust successfully reduce by 43 and 85 percentage by uses of water spraying and dust net protection for filling activity and grading activity, respectively. Moreover, in comparison with the concentration cost, both improvement processes of filling activity and grading activity would add more cost around 1.25 Baht per cu.m. and 7 Baht per cu.m. or 1.4 and 7.2 percentage, respectively.