Investigation on mechanical properties of lightweight concrete partially replacing sawdust to fine aggregate

Abstract

The major element that helps in damaging the environment is CO2, where it leads to disturb the human race as well as the entire bio-diversity of the environment. As increasing demand for the construction of buildings, Dams and many other projects which directly helps in increase in demand of cement production. As of the records 2001 a total of 7 % of pollution in the entire environment is due to cement manufacturing companies. As we know that the production of cement from its raw materials produces CO2 and harmful pollutants into the environment. Going into our project work is to lower the production of the cement by partially replacing it with saw dust i.e., wooden powder. The problem with the wood is its high-water absorption capacity, to negotiate this problem the SSD condition is evaluated on the taken saw-dust. The percentage replacement would be as 5 %, 10 % and 15 % is allowed to go for casting, before passing all its fresh property tests, so after then it is allowed for curing and to analyze its mechanical properties as compression test, tensile, flexural and impact test. Out of all the mechanical tests the above four determines the nature and quality of concrete. As of its past study it is came to know that 5 % replacement of saw-dust give better impact strength due to its fibrous nature of the wooden particle. Finally, in our project we want to produce a better concrete is eco-friendly and to satisfy all the needs of construction industry.