Abstract: The alkali activation of fly ashes produces a solid and compact material having similar properties to those of portland cement (PC) with characteristics of sustainable high value; these materials with high silica and aluminum are referred to as geopolymers. These new materials are a new generation of environmentally friendly cement, so it is very important to study their properties to validate their implementation; for which the application of new techniques currently being used. The work presented in this study focuses on establish the usual procedures of the techniques of X-ray diffraction (XRD), Infrared Spectroscopy (FTIR) and Thermogravimetric Analysis (TGA) in its specific application to geopolymer base, or also called fly ash. Likewise, is determined the behavior of these materials for each of the above techniques.

• Publication Date: 03-Aug-2014
• DOI: 10.15224/978-1-63248-006-4-65
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Abstract: To produce concrete which is a common construction materials, different types of aggregates are used. Those aggregates comes from the natural resources and artificial resourches causing decrease of natural reasourches. Using huge amount of natural reasourches is a bad impact on the eco system. Now a days it is common consideration to use the agricultural waste as construction materials in production of concrete. The country like malaysia in tropical region produces a lot of agricultural waste in oil palm industries. The on going researches on oil palm shell encourage to use it in concrete as aggrigate replacement. The objective of this reasearch is to determine the effect of water/cementratios (w/c) on the mechanical properties of oil palm shell concrete (OPSC). The w/c changes by the changes of cement content in the concrete and all other parameters are fixed on the study. The compressive strength, spliting tensile strength, flexural strength changes are studied due to the changes of

• Publication Date: 03-Aug-2014
• DOI: 10.15224/978-1-63248-006-4-67
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• Downloads: 0