Architecture, Building and Planning

Report by the Review Committee for the Assessment of Research in Architecture, Building and Planning.

Meten en rekenen horen bij elkaar

Experimental determination of crack softening characteristics of normalweight and lightweight concrete

For modelling fracture behaviour of concrete various types of deformation controlled uniaxial tests were performed on normal weight and on lightweight concrete. These two types of concrete were compared with respect to their envelope curves, material stiffness and degradation during post-peak cycles, and residual compressive deformation on crack...

Demountable concrete structures: A challenge for precast concrete

Proceedings of the international symposium, held at Rotterdam, The Netherlands, May 30-31, 1985.

Fracture Mechanics of an Elastic Softening Material like Concrete

Concrete is modelled as a linear elastic softening material and introduced into fracture mechanics. A discrete crack is considered with softening zones at the crack tips. Following the approach of Dugdale/Barenblatt, closing stresses are applied to the crack faces in the softening zone. The stresses are described by a power function. Relations...

Concrete under Impact Loading, Tensile Strength and Bond

Uniaxial impact tensile tests on plain concrete were carried out with the aid of Split Hopkinson Bar equipment with stress rates of up to 60000 N/mm2. s. Various concrete mixes were investigated under. dry and wet conditions. All the concretes showed an increase in strength with increasing stress rate. At very high stress rates the strength may...

Theory and Experiments on the Mechanical Behaviour of Cracks in Plain and Reinforced Concrete Subjected to Shear Loading

Experiments on shear transfer in cracks in concrete. Part I: Description of results

Static and dynamic testing of concrete beams reinforced with fibres and continuous bars

The main purpose of the testing program was to get an idea about the influence of steel fibres on the fatigue performance of conventionally reinforced concrete beams. The influence of three types of steel fibres with three various percentages on the failure load, the cycles to failure, the crack width and the crack spacing should be investigated...

Erosie van beton

Binnen dit onderzoek wordt onder erosie het afslijten van een oppervlak door water en de daarin meegevoerde sedimenten verstaan. Bij bouwwerken in zee kan erosie een verschijnsel van aantasting zijn als water met zand en slib regelmatig langs de konstruktie heen en weer stroomt. De bouw van de pijlerdam in de Oosterschelde was de aktuele...

On the heat of hydration of cements

In this paper, the main interest will lie in the heat liberation and a little in the mechanical properties.

A Concrete Beam reinforced with Bars and Steel Fibres in Pure Bending

Erosion of Concrete

Contribution of the fibres to the load bearing capacity of a bar- and fibre-reinforced concrete beam

Demontable betongebaude?

Einige Fragen zum Fertigteilbau