Sustainable Cement Composite Integrating Waste Cellulose Fibre: A Comprehensive Review

Area of Science:

• Materials Science
• Civil Engineering
• Sustainable Materials

Background:

• Cement-based composites are widely used construction materials.
• Incorporating recycled materials like waste paper cellulose fibers offers environmental benefits.
• Understanding the impact of these fibers on composite properties is crucial for their effective application.

Purpose of the Study:

• To review existing research on cement composites reinforced with waste paper cellulose fibers.
• To analyze the influence of fiber composition on binder formation and composite properties.
• To evaluate the mechanical and durability characteristics of these novel composites.

Main Methods:

• Literature review of studies on cement-based composites with waste paper cellulose fibers.
• Analysis of research focusing on raw material composition, mechanical properties, and durability.
• Investigation of factors affecting fiber dispersion and their impact on composite performance.

Main Results:

• Raw material composition significantly influences cement composite binder formation.
• Silica and magnesium compounds positively affect cement composite setting with paper fibers.
• Inclusion of 20-80% waste paper fibers reduces density by ~25%.
• Optimal water/cement ratio (0.64) enhances fiber dispersion and strength, but excessive water increases porosity.
• Higher porosity leads to increased water absorption and decreased thermal conductivity due to the hydrophilic nature of cellulose fibers.

Conclusions:

• Waste paper cellulose fibers can be effectively used to reinforce cement composites.
• Optimizing fiber dispersion and water content is critical for achieving desired mechanical and durability properties.
• These composites show potential for sustainable construction, with reduced density and altered thermal properties.