Delayed ettringite formation

TL;DR: In this paper, a review of the possible mechanisms for self-healing phenomenon in cementitious materials, which are summarized based on substantial experimental studies and practical experience, are reviewed.

TL;DR: It is concluded that further research on the phase development during cement hydration in the presence of heavy metals and thermodynamic modelling is needed to improve effectiveness of cement-based s/s and extend this waste management technique.

TL;DR: In this article, the thermodynamics of real solutions for sodium sulfate and sodium chloride have been investigated and it was shown that dissolution of its anhydrate produces supersaturations with respect to its decahydrate capable of generating tensile hoop stresses on the order of 10-20 MPa, largely in excess of the tensile strength of almost all stones.

TL;DR: In this article, the authors reviewed the hydration mechanisms of alite and Portland cement and found that the main heat evolution peak hydration is dominated by the growth of outer C-S-H with a spiky or needle-like morphology.

TL;DR: In this paper, the morphology, composition, and nanostructure of C-S-H in a range of hardened cements were investigated. But the authors focused on the inner product (Ip) of a slag-based mixture of Portland cement and slag.

TL;DR: In this paper, the scope of the delayed ettringite formation (DEF) problem is reviewed and the controversy concerning basic DEF mechanism between proponents of homogeneous paste expansion and crystal pressure is explored.