TY - Generic T1 - Poro-chemo-fracture-mechanics ... bottom-up: Application to risk of fracture design of oil and gas cement sheath at early ages T2 - Euro-C Conference Y1 - 2014 A1 - Franz-Josef Ulm A1 - Muhannad Abuhaikal A1 - Thomas Alexander Petersen A1 - Roland Jean-Marc Pellenq ED - Bicanic, N ED - Mang, H ED - Meschke, G ED - DeBorst, R AB -

With ever more challenging (T, p) environments for cementing applications in oil and gas wells, there is a need to change the classical paradigm of constitutive modeling of the early-age behavior of cementitious materials in oil-and gas well applications. Herein, we propose a bottom-up approach, which starts at the molecular scale of calcium-silicate-hydrates (C-S-H), and propagates this understanding via incremental poroelastic upscaling methods to the meso-and macroscale, and ultimately to the scale of engineering applications. With a clear focus on engineering risk-of-fracture evaluations, we show how to integrate this bottom-up approach with fracture mechanics.

JF - Euro-C Conference PB - CRC PRESS-TAYLOR & FRANCIS GROUP CY - MAR 24-27, 2014, St Anton am Alberg, AUSTRIA VL - COMPUTATIONAL MODELLING OF CONCRETE STRUCTURES, VOL 1 SN - 978-1-138-02641-4; 978-1-315-76203-6 ER -