Shashi Ranjan Pandey

The strength and durability characteristics of Self compacting concrete (SCC) incorporating Rice Husk Ash (RHA) have been computed by replacing 0%, 5%,10%, 15%, 20%, 25% and 30% cement by rice husk ask. The inclusion of rice husk ash as replacement of cement does not affect the strength properties negatively as the strength remains within limits i.e target strength can be achieved up to a replacement of 15% to 25%. The concrete was endowed with comparable mechanical properties and greater resistance to aggressive agents (chemical, physical and environmental).

This book presents formulation and numerical results of the double - K fracture parameters of concrete obtained using various analytical models. Due to several advantages of split-tension cube test, development of double-K fracture model for the split-tension cube specimen is also presented in the book. Further, application of peak load method for determining the fracture parameters of double - K fracture model is introduced in which the need of clip gauge for measurement of crack opening displacement during the test is avoided. For purpose of all the computations, cohesive crack model is developed for different test geometries.