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Superelastic shape memory alloys (SMAs) have the ability to recover their original shape after experiencing large strains. A new beam-to-column connection incorporating long shank SMA bolts is presented in this paper. By using the unique characteristics of SMAs, the connection possesses...
The effect of gypsum in slag-blended cement on free and restrained shrinkage of concrete subjected to various curing conditions is presented in this paper. Added gypsum in slag-blended cements was found to increase the autogenous shrinkage of concrete up to 56 days. However, added gypsum caused...
This paper presents microstructure and flexural behavior of steel-fiber reinforced concrete produced with different steel fibers volume fraction and aspect ratio. Prismatic concrete specimens of 100 × 100 × 350 mm were prepared with and without steel fiber. Two different steel fiber types (both...
Cet article présente les résultats de caractérisation mécanique d’une formulation de béton de sable (BS) destinée à la projection par voie humide dans le système 3D (tridimensionnel), en substitution au béton ordinaire à base de granulats 3/8 (BO(3/8)) utilisé par voie sèche. La...
The workability of earth mortars made with natural soils composed of clay and sand, also called soil mortars, such as sand–cement mortars, is in general studied using simple methods that are very useful in situ but are often incapable of describing the rheology in the fresh state. A more...
The effects of the reuse of ‘Formtex’ Controlled Permeability Formwork (CPF) liner on strength and durability properties of concrete were investigated at two different water-cement ratios and the results are reported in this paper. Test blocks were cast using the CPF on one side and...
Load bearing walls of masonry type construction are weak in tension and wall failure in out-of-plane bending direction is one of the common failure mechanisms. Out-of-plane bending capacity and behavior can be greatly enhanced by post-tensioning. Developing countries commonly have poor and under...
The main objective of the use of very fine red clay ceramic waste in rendering mortars is the reduction in the primary binder (cement) content made possible by the potential pozzolanic effect of this recycled material, with very clear environmental benefits in the reduction of overly-high energy...
In conventional analysis and design procedures of reinforced concrete structures, the ability of concrete to resist tension is neglected. Under cyclic loading, the tension-softening behavior of concrete influences its residual strength and subsequent crack propagation. The stability and the...
Cet article présente les résultats de traction et de module d’élasticité obtenus entre un jour et un an sur un vaste ensemble de mortiers, de micro-bétons et de bétons réalisés avec des granulats calcaires issus de cinq carrières tunisiennes. Pour la traction, les résultats ont été...
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