Why kerosene and cement does not react?

Kerosene and cement do not react because they are fundamentally different in nature; kerosene is a hydrocarbon liquid that is non-polar, while cement is primarily composed of silicates and aluminates, which are polar in nature. The lack of reactivity is due to the absence of chemical affinity between the two substances. Additionally, kerosene is hydrophobic and does not interact with the water-based components typically found in cement mixtures, further preventing any chemical reaction.