A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Corrosion of Pond Ash (PA)‐Based Geopolymer Products
The corrosion behavior of PA‐based geopolymer mortar and concrete under different conditions (saline water, HCl solution, H 2 SO 4 solution, H 3 PO 4 solution, normal water, distilled water) is discussed in this chapter. Strength, morphology and thermal properties were compared for exposed and unexposed GP motor and concrete. The strengths obtained were 24.1 MPa and 29.9 MPa for PA‐based GP mortar and PA‐based GP concrete, respectively, after 75 days exposure to saline water. Similarly, the strengths obtained were 24.3 MPa and 30.1 MPa for PA‐based GP mortar and PA‐based GP concrete after 75 days exposure to HCl media water. A similar corrosion test is performed in distilled water media. The strength was found to be 24.1 MPa (PA‐based GP mortar) and 30.0 MPa (PA‐based GP concrete) after 75 days corrosion in distilled water. Thus, there is no difference in strength properties observed in those two materials after exposure to different media. The strength before corrosion in water was found to be 24 MPa (PA‐based GP mortar) and 29.7 MPa (PA‐based GP concrete). Results indicate that there is no change in strength. There is no change in density results for exposed and non‐exposed samples corroborated by strength results. SEM images and DSC iso‐therms of GP products indicated the occurrence of condensation polymer reaction during curing. TGA analyses did not show any difference in behavior between the materials (before and after exposure of PA‐based GP mortar and concrete).
In conclusion, it may be said that the strength values for these two materials are comparable to that of standard M15 grade mortar used in construction.
Corrosion of Pond Ash (PA)‐Based Geopolymer Products
The corrosion behavior of PA‐based geopolymer mortar and concrete under different conditions (saline water, HCl solution, H 2 SO 4 solution, H 3 PO 4 solution, normal water, distilled water) is discussed in this chapter. Strength, morphology and thermal properties were compared for exposed and unexposed GP motor and concrete. The strengths obtained were 24.1 MPa and 29.9 MPa for PA‐based GP mortar and PA‐based GP concrete, respectively, after 75 days exposure to saline water. Similarly, the strengths obtained were 24.3 MPa and 30.1 MPa for PA‐based GP mortar and PA‐based GP concrete after 75 days exposure to HCl media water. A similar corrosion test is performed in distilled water media. The strength was found to be 24.1 MPa (PA‐based GP mortar) and 30.0 MPa (PA‐based GP concrete) after 75 days corrosion in distilled water. Thus, there is no difference in strength properties observed in those two materials after exposure to different media. The strength before corrosion in water was found to be 24 MPa (PA‐based GP mortar) and 29.7 MPa (PA‐based GP concrete). Results indicate that there is no change in strength. There is no change in density results for exposed and non‐exposed samples corroborated by strength results. SEM images and DSC iso‐therms of GP products indicated the occurrence of condensation polymer reaction during curing. TGA analyses did not show any difference in behavior between the materials (before and after exposure of PA‐based GP mortar and concrete).
In conclusion, it may be said that the strength values for these two materials are comparable to that of standard M15 grade mortar used in construction.
Corrosion of Pond Ash (PA)‐Based Geopolymer Products
Panigrahi, Muktikanta (editor) / Ganguly, Ratan Indu (editor) / Dash, Radha Raman (editor) / Panda, Slipika (author) / Panigrahi, Muktikanta (author) / Ganguly, Ratan Indu (author) / Dash, Radha Raman (author)
2023-06-06
32 pages
Article/Chapter (Book)
Electronic Resource
English
OPC , pond ash , geopolymer , concrete , corrosive media , AAS , SEM , corrosion