  Recognition of Quality and Conformity of Concrete Repair Products and Protection Systems/ Belgian and European experiencesCourard, Luc  ; Darimont, Anne ; Degeimbre, Robert et alin Vaysburd, Alex (Ed.) Bridging the Concrete Repair Industry into a New Era of Sustainable Development (2003) Recognition of product quality and conformity supposes the existence of two elements: a users’ requirements document and a certification system for product conformity with this document. The document is ... [more ▼] Recognition of product quality and conformity supposes the existence of two elements: a users’ requirements document and a certification system for product conformity with this document. The document is generally drawn up by a group representing all the interested parties (public and private users, producers, certification or monitoring bodies, testing laboratories, experts …). Depending on circumstances, the document appears as the norm approved in a certain country or as a normative document (approval guide, technical prescriptions,…) recognised by the various interested parties. The certification body is a public or private body which has the competence, independence and impartiality to certify that a duly identified product conforms to a normative document. The certification body works within a certification system that also includes inspection bodies and testing laboratories. In certain cases, the certification body is approved by a competent national authority. In Belgium, the Ministry of Communication and Infrastructures approves certification or inspection bodies and also testing laboratories for building activities. [less ▲] Detailed reference viewed: 9 (0 ULg)Adhesion of Self-Compacting Concrete on Old Concrete StructuresCourard, Luc ; Darimont, Anne ; Degeimbre, Robert et alin Seidler, Peter (Ed.) Industrial Floors 03 (2003) The repair of concrete deck slabs or balcony needs a special composition of concrete, and self-Compacting Concrete (SCC) is advantageously used for such repair operation. The rheology of the material is ... [more ▼] The repair of concrete deck slabs or balcony needs a special composition of concrete, and self-Compacting Concrete (SCC) is advantageously used for such repair operation. The rheology of the material is of prime importance and needs to be adapted to ensure the penetration of SCC beneath the concrete plate structure as well as the adhesion to the old concrete substrate. Several materials have been used and characterised by means of a physical, chemical and mechanical test program. A test procedure is proposed to assess the efficiency and quality of the repair technique and material. Analysis of the interface between concrete substrate and SCC is given on the basis of a pull-off test and microscopical observations. [less ▲] Detailed reference viewed: 32 (0 ULg)Hygro-thermal application conditions and adhesionCourard, Luc ; Darimont, Anne ; Degeimbre, Robert et alin Seidler, Peter (Ed.) Industrial Floors 03 (2003) Coatings are designed to protect concrete against environmental aggression. Water is one of the aggressive parameters able to deteriorate the concrete structure. The objectives of this paper are to ... [more ▼] Coatings are designed to protect concrete against environmental aggression. Water is one of the aggressive parameters able to deteriorate the concrete structure. The objectives of this paper are to present the effects of water (i) during application of coating on the concrete substrate and (ii) pull-off test. Semi-permanent moisty state produced by absorption from the uncoated face, total immersion or diffusion of water from the back face of the substrate are analysed. Water vapour diffusion and influence of hydrophobic treatment are also investigated. A classification based on increasing influence of the tests and application conditions on adhesion is proposed and clearly points out the negative effect of capillary action from the uncoated face. [less ▲] Detailed reference viewed: 10 (0 ULg)Repairing Concrete with Self Compacting Concrete: Testing Methodology AssessmentCourard, Luc ; Darimont, Anne ; Degeimbre, Robert et alin Shah, S. P. (Ed.) Self-Consolidating Concrete (2002) The repair of concrete deck slabs or balcony needs a special composition of concrete and self-compacting concrete (SCS) is advantageously used for such repair operation in comparison with patch repair or ... [more ▼] The repair of concrete deck slabs or balcony needs a special composition of concrete and self-compacting concrete (SCS) is advantageously used for such repair operation in comparison with patch repair or gunite. Two compositions of concrete (classical and SCC concretes) and two repair mortars are tested according to a new testing procedure. The penetration of SCC beneath the concrete plate structure but also the adhesion to the old concrete substrate are analysed. The rheology of the material is measured by means of usual tests and rheometer. The different materials have been characterised through physical, chemical and mechanical test program. Two types of applications (vertical and horizontal) are presented and commented. Analysis of the interface between concrete substrate and SCC is given on the base of pull-off test and microscopical observations. [less ▲] Detailed reference viewed: 136 (1 ULg) Effects of sunshine/rain cycles on the behaviour of repairing systemsCourard, Luc ; Degeimbre, Robert ; Darimont, Anne et alin Ohama, Y.; Puterman, M. (Eds.) Adhesion between polymers and concrete (1999) Detailed reference viewed: 10 (2 ULg)Analysis of the resistance to water of the interface between concrete and repairing systems: experimental approachCourard, Luc ; Degeimbre, Robert ; et alin Concrete under severe conditions 2 (1998) Detailed reference viewed: 8 (0 ULg)The behaviour of coatings on concrete supports in relation with different forms of water attackCourard, Luc ; Degeimbre, Robert ; in Concrete under severe conditions 2 (1998) Detailed reference viewed: 2 (0 ULg)Influence of the composition of the repairing mortars on adherenceCourard, Luc ; ; Darimont, Anne et alin Van Gemert, Dionys (Ed.) Proceedings of the VIIIth International Congress on Polymers in Concrete (1995) Detailed reference viewed: 5 (1 ULg)Influence of the operating conditions and humidity on adherence of repair mortarsCourard, Luc ; ; Darimont, Anne et alin Van Gemert, Dionys (Ed.) Proceedings of the VIIIth International Congress on Polymers in Concrete (1995) Detailed reference viewed: 7 (1 ULg)Performance des mortiers de ragréage en fonction du mode de préparation des bétons support; Darimont, Anne in colloque européen Lyon 8-9-10 septembre 1992 (1992, September) Detailed reference viewed: 10 (0 ULg)Compatibility between fibers and modified bitumenCourard, Luc ; Rigo, Jean-Marie ; Degeimbre, Robert et alin Rigo, Jean-Marie; Degeimbre, Robert (Eds.) Reflective cracking in pavements - Assessment and control (1989) Detailed reference viewed: 4 (0 ULg) |
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