Dear Manjunath Shettar,

you can find some useful information for cold-curing epoxy-based composites on the following papers (I can supply you the pdf files of the publications):

M.S. Sciolti, M. Frigione, M.A. Aiello, “Wet Lay-Up Manufactured FRP’s for Concrete and Masonry Repair. Influence of Water on the Properties of Composites and of Their Epoxy Components”. ASCE Journal of Composites for Construction, Vol. 14, Issue 6, pp. 823-833 (2010). DOI: 10.1061/(ASCE)CC.1943-5614.0000132

M.S. Sciolti, M.A. Aiello, M. Frigione, “Effect of thermo-hygrometric exposure on FRP, natural stone and their adhesive interface”. Composites Part B: engineering, Vol. 80, 162-176 (2015). DOI: 10.1016/j.compositesb.2015.05.041.

M. Frigione, “Ageing of Fiber Reinforced Polymers for Construction Applications”. JEC Composites Magazine, No. 106, 46-49 (2016). ISSN: 1639965X

M. Frigione, “Durability Aspects of Polymer Composites Used for Restoration and Rehabilitation of Structures”. In: “Leading-Edge Composite Material Research”, Tobias G. Wouters Ed., Ch 1, pp. 23-69 (2007). ISBN: 978-1-60021-995-5.

M. Frigione, “Durability of Adhesives and Matrices for Polymer Composites used in Restoration and Rehabilitation of Building Structures under Natural and Accelerated Weathering Conditions”. In: “Adhesive Properties in Nanomaterials, Composites and Films”, pp. 128-152 (2010). ISBN: 978-161209268-3

Kind Regards, Mariaenrica Frigione

What are the specifications of weatherometer you are going to use ?

Dear all, please refer to the following documents. My Regards

10.1016/j.compstruct.2015.03.049

https://www.researchgate.net/publication/305740788_A_Review_on_Artificial_Aging_Behaviors_of_Fiber_Reinforced_Polymer-matrix_Composites

you can read this article

https://www.sciencedirect.com/science/article/pii/S0141391017303609

Thanks and regards

Please use the FTIR-ATR periodically and measure the HI and CI.

One of the conventional methods is evaluating the mechanical properties (such as tensile, flexural, shear, etc.) at different times after accelerating hygrothermal aging (each 1 week). These mechanical properties will probably tend to reduce with increasing the testing time. Then, you can extrapolate the life of composite for long-term mode.