In this paper, we focus on the bounds for blow-up time of null Dirichlet initial boundary
value problem for a reaction-diffusion equation with weighted gradient nonlinearity.
By virtue of the method of super-sub solution and the technique of modified differential
inequality, we establish sufficient conditions to guarantee that the solution blows
up at finite time under appropriate measure sense. Meanwhile, upper and lower bounds
for the blow-up time are found in higher dimensional spaces and some examples for
application are presented. (C)2018 Elsevier Ltd. All rights reserved .