Experimental Study on Concrete With Partial Replacement of Cement with Lime and Fly ASH

Abstract

The most popular artificial material on Earth isn‘t steel, plastic, or aluminum — it‘s concrete. Thousands of years ago, we used it to build civilizations, but then our knowledge of how to make it was lost. Here‘s how we discovered concrete, forgot it, and then finally cracked the mystery of what makes it so strong. Basically, concrete is just a bunch of rubble mixed with water and cement. Together, these ingredients form rocky jello that can be poured into a mold and shaped into whatever the heck you like. Today many admixtures have been introduced to enhance the properties of concrete. Use of fly ash and lime as the replacement of cement in concrete mix is considered very eco-friendly and it is also economical. It saves the cement requirement for the same strength thus saving of raw materials such as limestone, coal etc required for manufacture of cement. Fly ash is pozzolanic material & it improving the properties of concrete like compressive strength & Durability. This project presents the experimental investigation carried out to evaluate the effect of partial replacement of cement with fly ash which is waste product generated from the industries. Numerous tests are performed on wet concrete such as workability tests such as compaction factor test and slump test. The tests on hardened concrete are destructive test while the destructive test includes compressive test on concrete cube for size (150 x 150 x 150) mm, Flexural strength on concrete beam (500 x 100 x100) and split tensile strength on concrete cylinder (150 mm ø x 300mm) as per IS: 516 – 1959, IS: 5816 – 1999 and IS: 516 – 1959 respectively Several researchers in the past investigated the effect of mineral and chemical admixtures on the properties of the concrete adopting different theories