CHAPTER 2 LITERATURE REVIEW

9 CHAPTER 2 LITERATURE REVIEW 2.1 Introduction This Chapter presents a review of available and related published literature on geopolymer concrete and SCC, serving the purpose of general introduction of these materials as well as establishing the foundation to this thesis. The first part of the chapter focuses on geopolymer concrete. This includes the geopolymer terminology, geopolymerization mechanism, materials used to produce geopolymer concrete and the existing knowledge on the mechanical properties of the geopolymer concrete. The second part of the chapter reviews literature about SCC. This includes the fresh properties, testing methods to evaluate the fresh properties and the mechanical properties of SCC. The history of development and composition of SCC are also briefly reviewed in this part of the chapter. 2.2 Geopolymer Concrete In view of the issues of energy consumption and CO 2 emission raised about the cement industry, it is now believed that new binders are indispensable to completely replace the traditional Portland cement in concrete production. The development of new cements other than Portland cements using large amounts of wastes as raw material is an ongoing study and research topic of the scientific community. Since past few decades, industrial by-product and agricultural waste materials have been introduced into the construction industry to partially replace the OPC. These waste materials which contain sufficient amount of silicon and aluminium oxides when react with an alkaline solution forms a binder similar to the Portland cement. This innovative binder material is termed as geopolymer concrete.

CHAPTER 2 LITERATURE REVIEW

Documents

geopolymer cement

material

construction

ordinary portland cement

geopolymer concrete

geopolymerization mechanism