Diluent Systems

Tailor CPAL Workability

Combining diluents of different volatilities simultaneously optimizes viscosity, volatility, and rheology, making construction-stage behavior more controllable.

Qicai, Qiao · Gao, Yang · Zhang, Xiao · Jinbiao, Gao · Gao, Yang · Zhang, Wenju · Zhang, Hengji

Construction and Building Materials 2026

Advantages

Slower Ambient Evaporation

Incorporating naphthenic oil or waste cooking oil significantly suppresses the excessively rapid evaporation of No. 120 solvent oil at ambient temperature, helping maintain workability.

More Stable Rheology

Blended diluent systems show smaller modulus fluctuations and more regular rheological trends at medium and high temperatures; the WCO-containing partially volatile system is particularly effective at maintaining structural stability.

Balanced Volatility and Stability

A rational combination of diluents with different volatility characteristics can better balance workability, volatilization behavior, and rheological response than a single diluent.

Applications

• Asphalt Pavement Repair：For rapid pothole patching, relying on low viscosity and controlled volatility for workability.
• Road Maintenance Materials：As a high-performance cold patching base material, extending repaired pavement lifespan.
• Asphalt Modifiers：Compatible with asphalt, lowering construction viscosity of modified binders.