1. Operate roller to compact earth, subgrade, and sub-base asphalt surfaces in the construction of highways and streets. 2. Drive machine in successive overlapping passes over surfaces to be compacted, rolling asphalt and subgrade to desired compaction and smoothness. 3. Determines speed and direction of machine based on knowledge of compressibility of material under changing temperatures. 4. Distribute, break down, compress and give a finished surface to cooling asphalt. 5. Coordinate machine actions with other activities, positioning and moving the machine in response to hand or audio signals from crew members. 6. Communicate with paving crew on and foreman on job density requirements. 7. Assist in setting up and taking down signs. 8. Daily maintenance of fluids and water systems check. 9. Monitors rolling temperature and works within temperature best suited for material being laid. 10. Determine rolling drum mode. 11. Have a thorough understanding of material thickness, type of material being laid, and material temperature for determining rolling range. 12. Make frequency and amplitude adjustments depending on mix design, material thickness, temperature zone, and density. 13. Optimize water systems controls to avoid material pickup and eliminate excessive water usage. 14. Establish rolling pattern and determine paving width, roller drum width, drum overlap, and paver speed. 15. Works with density technician to make sure density requirements are being achieved. 16. Communicate with paving crew on any flaws in material or finished mat. 17. Understand proper techniques for rolling transverse joints.POWIN STEEL INDUSTRIES SDN BHD was established in year 2009, located in Taman Teknologi Cheng,Malacca. We specialized in GI Purlins (C & Z Profile), metal roofing sheets and multi roof truss & batten for building industries.Currently, our sales coverage covers the whole Malaysia. POWIN STEEL had been accredited with SIRIM in Quality Management System ISO 9001:2015. We are committed to deliver on time, high quality products and good customer services, with competitive price to meet or exceed customer's expectations and satisfaction without compromising our core values, mission and vision. Besides that, we only purchase top quality raw material from well known local steel mill. Our raw material is certified by SIRIM, which the quality is guaranteed and accredited with SIRIM Eco-label certification (Green Coated Steel). "E-co-labelling" is a voluntary method of environment performance certification, offering an option to eco-conscious consumers of environmental friendly & sustainable product.SPM / O Level / SKM Level 1 / SKM Level 2 / SKM Level 3 or Equivalent
