Synthesis Of Highly Effective Plasticizing Admixtures From Pyrolysis Oil For Improving The Properties Of Cement Composites
Keywords:
Pyrolysis oil, naphthalene sulfonate–formaldehyde (NSF), superplasticizer, sulfuric acidAbstract
This study investigates the hydration and mechanical properties of ordinary Portland cement pastes containing a superplasticizer synthesized from pyrolysis oil. The admixture is a naphthalene sulfonate–formaldehyde (NSF) condensate. Cement pastes were prepared with different superplasticizer dosages and cured for specified periods under controlled conditions. The results show that the synthesized NSF admixture improves the mechanical performance of the cement paste and reduces water demand. The NSF-based admixture also performs better than a sodium lignosulfonate-based superplasticizer in improving the mechanical properties of concrete. The findings suggest that pyrolysis oil can serve as a feedstock for producing water-reducing admixtures for cementitious materials.
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