Research Progress on Factors Affecting Oil-Absorption Performance of Cement-Based Materials

Area of Science:

• Materials Science
• Environmental Engineering
• Civil Engineering

Background:

• Petroleum resource utilization leads to widespread environmental oil pollution.
• Cement-based materials are crucial in civil engineering, offering potential for oil pollutant adsorption.
• Investigating oil-absorbing materials in cement composites expands their functional applications.

Purpose of the Study:

• To review conventional oil-absorbing materials and their integration into cement-based composites.
• To analyze the impact of various oil-absorbing materials on cement composite properties.
• To understand the mechanisms and factors influencing oil adsorption in cementitious materials.

Main Methods:

• Literature review of oil-wetting mechanisms and oil-absorbing materials.
• Analysis of additive effects (e.g., Acronal S400F, polyethylene glycol) on cement stone properties.
• Examination of adsorption kinetics and thermodynamics using isotherm and kinetic models.

Main Results:

• 10% Acronal S400F reduced water absorption by 75% and increased oil absorption by 62%.
• 5% polyethylene glycol enhanced oil-water relative permeability to 1.2.
• Porosity significantly impacts oil absorption, with a 72% to 91% increase yielding 236% higher absorption.

Conclusions:

• Cement-based materials can be functionalized for oil absorption.
• Material properties like porosity are critical for optimizing oil absorption capacity.
• This research provides insights for designing advanced cement-based oil-absorbing materials.