Journal of Materials and Engineering Structures
Volume 6, Numéro 2, Pages 157-165

Adhesion And Rheology Of Joints Fresh Mortars

Authors : Bouras Rachid . Si Hadj Mohand Chafiâa . Sonebi Mohammed .


An adhesive mortar in fresh state is considered as a granular suspension in a complex fluid. The study of the rheological behavior of such materials involves the rheology of complex fluids, including granular suspensions, colloidal dispersions, etc... To characterize the rheological behavior of an adhesive mortar, in quasi-static regime, we use a three-parameter behavior law that includes a yield stress, a viscosity coefficient and a fluidity index. The adhesiveness of the mortar can be characterized by identifying the evolution of the adhesive force, the cohesive force and the adherence force. The mortar characteristics are measured by a commercial rheometer from Texas Instruments (TA). In this study, we use a plane-plane geometry for the Probe Tack Test to determine the adhesiveness of the materials. The rheological property of the mortar is investigated using the Vane-Cylinder geometry (figure 1.5). The mechanisms of separation and rupture in a tensile material confined between two parallel plates are studied theoretically and experimentally. This study is conducted for a materials selected for his rheological behavior (Herschel Buckley). We studied the rheological behavior and the influence of additions of organic additives on the rheological parameters intrinsic to the material, and the failure mechanisms. This study has allowed us to observe the different types of rupture.


Joint mortar; Rheology; Adhesion

Rheology And Scaling Behavior Of Swelling Clay Dispersions

Chaoui S. .  Mehamha A. .  Belkham N. H. .  Benachour D. . 
pages 202-209.

Joints And Obesity, Adverse Effects And Means Of Prevention

Boukara Zouhir .  Benzaoui Sabah .  Louazani Chahinez .  Amri Zohra .  Nouar Abdelkhalek Cherif . 
pages 68-76.

Mechanical Behavior And Durability Of Latex Modified Mortars

Benali Yacine .  Ghomari Fouad . 
pages 110-126.

Study Of Mortars Made With Natural And Artificial Pozzolans

Laoufi Imene .  Laoufi Laid .  Senhadji Yassine .  Benazzouk Amar . 
pages 427-442.