Paper by THIELEN from ISCR 6th 1990
Quality assurance (QA) in its traditional meaning is based on very detailed, in general prescriptive design and construction standards, on standardi-zed conformity criteria for all construction mate-rials and on generally accepted rules for good cons-truction practice. This basis allowed to limit QAon control tests and acceptance decisions for in-termediate or final construction stages. The suc-cess of this system results from a severe limitationof possible design and construction alternativesand from corresponding control tests.New developments and experiences gained in QAof complex production techniques give rise to re-consider the traditional way of QA in road cons-truction. This constribution presents some ideasconcerning the application of advanced QA-sys-terns in road construction projects. These QA-systems distinguished from traditional QA-proce-dures by a systematic quality planning and corres-ponding control to be carried out by the materialproducer and building contractor during all pro-duction and construction phases. Prerequisite forsuch a QA-system isaswella closed link QA-chaincovering the total design and construction processas the definition of unequivocal quality require-ments and corresponding conformity criteria.