Suitability Assessment of Fly-Ash GGBS Based Rammed Earth Material A-Sustainable Construction Building Material – AReview

Abstract

Rammed earth is an construction technique which is very ancient , as this technique has
capacity to produce environmentally sustainable construction materials due to which this
has been gaining attention of the researchers . A rammed earth construction technique is a
monolithic construction made by compacting processed soil in progressive layers in a rigid
formwork. The requirement of soil type in construction of rammed earth is lateritic soil.
However, this type of soil is not available in many regions of India. Therefore, an attempt has
been made to study the suitability of locally available non swelling soil blend with industrial
wastes in form of GGBS (Ground granulated blast furnace slag) and fly ash for rammed
earth construction. Fly ash is a by-product from burning pulverized coal in electric power
generating plants. GGBS is obtained from blast furnace slag, a by-product from the
manufacture of iron. Waste materials utilization is not only the promising solutions for
disposal problem, but also saves construction cost. This paper gives details about the various
studies carried out on stabilized rammed earth materials by utilizing different industrial
wastes cementetious materials like, lime, ground granulated blast furnace slag, and rice
husk ash. The paper also explains the state of the art of utilizing stabilized rammed earth
blocks.