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Asphaltic concrete on roads in Malaysia : is quality under control? Radzi, Hanani Mohd ; Harun, Mohd Hizam ; Radhiah, Wan ; Hanafi, Wan

By: Contributor(s): Publication details: Linköping VTI, 2012Description: 12 s, CDSubject(s): Bibl.nr: VTI 2012.0115Location: VTI MonoNotes: Ingår i: EPAM 2012: Malmö, Sweden, 5–7 September: 4th European pavement and asset management conference Abstract: The introduction of asphaltic concrete in Malaysia has brought with it the problem of a through design process of the mixture composition and subsequent extensive control testing that are required to produce and lay the mixture to the required tolerances. however, It is unfortunate to note that many elements of the design, production and construction of the delicate mixture have been either blatantly ignored or manipulated by the contractors and the supervising consultants. while it is clearly stated in pwd guidelines that the initiation and execution of quality control testing must be not left to the contractor, It is a common practice in malaysia to let the contractor carry out most or all the testing as a means to control the quality of the materials and construction works.Verification of test results by the supervising consultants is usually done on the basis of more or less effective surveillance, often by site staff with little or no training and experience. as such. PWD is invariably presented with inferior quality of materials and constructed works which include asphaltic concrete as road surfacing material. a total of 21 work sites were surveyed to identify the problems at each site. this paper looks into the problems and suggests ways how they could be mitigated.
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Ingår i: EPAM 2012: Malmö, Sweden, 5–7 September: 4th European pavement and asset management conference

The introduction of asphaltic concrete in Malaysia has brought with it the problem of a through design process of the mixture composition and subsequent extensive control testing that are required to produce and lay the mixture to the required tolerances. however, It is unfortunate to note that many elements of the design, production and construction of the delicate mixture have been either blatantly ignored or manipulated by the contractors and the supervising consultants. while it is clearly stated in pwd guidelines that the initiation and execution of quality control testing must be not left to the contractor, It is a common practice in malaysia to let the contractor carry out most or all the testing as a means to control the quality of the materials and construction works.Verification of test results by the supervising consultants is usually done on the basis of more or less effective surveillance, often by site staff with little or no training and experience. as such. PWD is invariably presented with inferior quality of materials and constructed works which include asphaltic concrete as road surfacing material. a total of 21 work sites were surveyed to identify the problems at each site. this paper looks into the problems and suggests ways how they could be mitigated.