SYNOPSIS

The construction and maintenance of an asphalt pavement which is complying to the functional and structural needs is deemed necessary in today’s world. Key parameters such as surface texture, structural strength and pavement profile are used to measure the quality of a pavement. Doing it right from the beginning during the new road construction is crucial and this helps to reduce unnecessary redo and reduce the tendency of potential premature failure that increases the maintenance cost unnecessarily. Selection of the correct construction methodology during the paving and compaction of asphalt by using the appropriate level control system contributes to good riding quality and good structural strength for a pavement.

The International Roughness Index (IRI) is always used to measure the road profile and riding quality on many roads in Malaysia. Lately a Three Points Averaging Sonic Sensors namely the Multiplex System has been introduced successfully. In addition, the specific features build in the paving equipment such as the electric heated screed function, auto set memorise function and screed assist function serve as additional features that improve the asphalt surface texture.

Besides, it is recognized that compaction process plays the key role in providing good structure strength and as well as good surface texture for an asphalt pavement. A typical Pneumatic Tyre Roller (PTR) and Tandem Roller serve as the ideal combination in providing the desired compaction. The success elements for the process are weight of equipment, correct rolling process, working window and asphalt temperature. A good paving and compaction protocol for the paving and compaction of asphalt will be presented.

Case studies on specific challenges during the paving and compaction of asphalt pavement will be presented. Fine asphalt stick to PTR’s tyre is always causing nuisance during the initial rolling on asphalt pavement especially during the compaction of surface causes such as Asphaltic Concrete Wearing Course (ACWC). Reviewing the fundamental of the root cause and identifying the right solution is importance to prevent the imprinting of ACWC surface due to the tyre contamination.

At the end of the seminar, participants are expected to gain knowledge in the latest paving technology and the new innovative construction methodology that promotes quality and innovation. The scope of coverage in this training session applicable to new road construction and as well as road maintenance.


SPEAKER BIODATA

Ir. Pok Sum Loong is the Managing Director of WIRTGEN MALAYSIA Sdn. Bhd., a subsidiary of WIRTGEN GROUP since July 2011. The WIRTGEN GROUP is an internationally operating group of companies leading in the construction machinery sector. Before joining Wirtgen, Ir Pok was the Global Marketing Manager and Regional Technical Manager for Shell Bitumen a world's leading supplier for bitumen. Ir Pok also have more than 10 years of real-life road construction experience when he was working for a prominent road contractor in Malaysia.

Ir. Pok is a Civil Engineer registered with The Board of Engineers, Malaysia (BEM). He has a Diploma and Degree in Civil Engineering from UTM and master’s degree of Highway and Transportation from UPM. Ir. Pok is the Corporate Member of The Institution of Engineers, Malaysia (IEM). He has worked in the pavement industry for nearly 30 years in Malaysia, China and as well as the global environment.

Ir. Pok actively participated in pavement and material technical committees and contributed vastly in the Malaysia pavement industry. He was a committee member for revision of Malaysia Standard MS 124 and MS 512, committee member for drafting of REAM guideline REAM-SP 3/2007 and Committee member for Shell Bitumen Technical Committee East. Currently Ir. Pok is the committee member for preparing the Technical Document related to New Technology in Road Pavement organized by The Road Engineering Association of Malaysia (REAM).