Global warming has become one of the most prominent issues at present. In that respect, the emission of greenhouse gases into the atmosphere plays a vital role. Among all the greenhouse gases, Carbon Dioxide (CO2) is considered the most harmful. Therefore, many countries have pledged to reduce the exhaust of CO2 into the environment and have set a “net zero goal”. One of the most significant emissions of CO2 gases comes from the cement factory. It is found that to produce 1 pound of cement, almost 0.9 pounds of CO2 is produced. Hence to lower the effect of CO2 on the climate the use of Portland cement should be reduced. As for the petroleum industry, cement plays a vital role because it assures the integrity of the well. In order to decrease the dependency on cement in the petroleum industry many companies and researchers are focusing their attention on the use of geopolymer in well cementing. One of the most important properties that a geopolymer cement should have is good compressive strength so that it can have the capacity to bear different loads present in subsurface conditions. Hence, this study focuses on preparing the neat geopolymer cement (only Class F Fly Ash) and compares its results with the geopolymer cement composite having 5% gilsonite in its ingredient. The samples were cured in a water bath at 75°C for the time period of six months. It was found that the samples that had gilsonite as an additive showed better compressive strength than the neat geopolymer cement since the start of curing days and continued the trend throughout the time of the experiment window. Hence, it can be said that gilsonite can be used as a strength enhancer in geopolymer cement.

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