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In mining, civil construction projects drilling and blasting method widely used for rock excavation. Due to rock blasting many problems may occur such as flyrock, vibrations and etc. In fact 38-40 % explosive energy utilising to produce vibrations only. [2] These blast induced ground vibration may cause damage newly performed bed concreting layers in construction process. There also arise similar problems in mining, where concrete supporting is required in drivages of weak rock. Therefore, investigation of on Effect of Blast Induced Ground Vibrations on Green Concrete and determining reasonable time gap and distance between blasting work and concreting is of great importance. This paper presented review on effect of Vibrations on green concrete. The recommendations given by various researchers are broad and general in nature. This research attempted to correlate the strength acquired by the concrete with the threshold maximum vibration level. In this research, experimental blasts carried out during base slab concrete works of a Metro construction works in Mumbai. Peak Particle Velocity (PPV) recorded by using seismographs. Effect of PPV on green concrete strength with respect to time. This paper presented difference in strength of green concreate, which is exposed to blast vibrations with strength of green concrete without exposing vibrations with respect to age of green concreate.

Effect of Blast Induced Ground Vibrations on Green Concrete at Mumbai Metro Rail Project