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12-04-2017, 09:56 PM

[b] [/b]Hi am Manju i would like to get details on self curing concrete project report ..My friend said said self curing concrete project report will be available here and now i am living at Belagavi. and i last studied in the college/school VTU and now am doing Site Engineer .i need help on self curing concrete project. Thank you

jaseela123d · 15-04-2017, 02:23 PM

When the mineral mixtures react completely in a mixed cement system, their demand for curing water (external or internal) may be much higher than that of conventional ordinary Portland cement. When this water is not readily available, due to capillary porosity leakage, for example, significant autogenous deformation and cracking (early in age) can occur.

Due to the chemical contraction that occurs during the hydration of the cement, empty pores are created inside the cement paste, which leads to a reduction of its internal relative humidity and also to the contraction that can cause early cracking. This situation is intensified in HPC (compared to conventional concrete) due to its generally higher cement content, reduced water / cement ratio (w / c) and pozzolanic mineral mixtures (fly ash, silica). Empty pores created during self-drying induce contraction stresses and also influence the kinetics of the cement hydration process, limiting the final degree of hydration. The resistance achieved by IC could be more than possible under saturated curing conditions.

Often, especially in HPC, it is not readily possible to provide curing water from the top surface at the rate required to satisfy the ongoing chemical shrinkage, because of the extremely low permeabilities that are often achieved.

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