Volume No. 9 Issue No.: 3A Page No.: 925-932 January-March 2015

 

STUDY ON GEOPOLYMER MASONRY AS SUSTAINABLE BUILDING MATERIAL

 

Radhakrishna,* Venugopal K., Sasalatti Vinod and Venumadhav T.

Department of Civil Engineering, R. V. College of Engineering, Bangalore (INDIA)

 

Received on : August 15, 2014

 

ABSTRACT

 

Masonry the oldest method of construction is composed of masonry units and mortar. The traditional masonry units like burnt brick and regular cement blocks are not considered as sustainable. Burnt brick consumes fossil fuel and top fertile soil. Cement block need traditional cement which produces carbon dioxide during manufacturing. Hence there is a need develop and use alternatives to traditional masonry units. Geopolymer technology is one among many alternatives in which complete elimination of cement is achieved without compromising the strength and durability. This technology makes use of marginal materials like fly ash, blast furnace slag as binders. River sand can be replaced with m-sand and other recycled aggregates. The reported literature is silent about the use of geopolymer masonry blocks in the construction. The present study focuses on this sustainable technology to save the natural and scarce materials. Industrial by-products class F fly ash and slag were used as binders. Alkaline solution and manufacturing sand were used to prepare the geopolymer masonry blocks. They were cured in open air by conserving water. The properties of masonry blocks/ bricks were determined and used in the construction of a building. It was found that the masonry units exhibit better properties compared to the traditional masonry units. Geopolymer masonry units were satisfied the requirements of the standard codes of different countries. The building constructed using geopolymer masonry blocks performed better compared to traditional cement blocks. Hence the use of geopolymer masonry blocks can be recommended for the construction of buildings

 

Keywords : Geopolymer, Masonry unit, Fly ash, Slag, Sustainability

 

 

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