Design Of Mud Concrete

Abstract

Over the past decade the price of construction materials like cement, aggregates etc.. have
increased many folds, this making it difficult for rural people living in villagers and small town to afford the
cost of construction. By using locally available alternate materials we can reduce the cost of construction.
This paper presents the study and possibility of partial replacement of cement by mud, fly ash & lime in
different quantities, to design a mud concrete which would be ecofriendly and low cost.
For the experimental investigation we have taken M20 grade concrete as our reference sample because it is
the minimum grade of concrete to be used in reinforced cement concrete(RCC) according to IS : 456-1978
In this research project we made four mud concrete variations reduce the quantity of cement from 100%-
60% by replacing it with mud, fly ash and lime. Each variation were comprised of mud, fly ash in 2:1 ratio
and lime fixed at 5%., Cement is incrementally increased by 10%.
After the mix design the samples were casted in 150x150x150mm cubes. Each variation consisted of 9
cubes and they were cured by wet covering method and later compression test was carried out on the cubes
as per code IS 516:1959
The results of compression test were compared with standard values of M20 grade concrete then the
optimum variation was selected, which was variation 4 as it is having 60% cement replacement has much
more strength when compared to other variations and has much closer strength value with M20 grade
concrete. So 4th variation which has 40% cement and 60% replacement can be used in construction of
houses in villages or small towns.